# List of Metrobus routes in Virginia

This is a list of bus routes operated by the Washington Metropolitan Area Transit Authority (WMATA), branded as Metrobus in Northern Virginia. Most routes operated under Northern Virginia trolleys, the Alexandria, Barcroft and Washington Transit Company (AB&W), and the Washington Virginia & Maryland Coach Company (WV&M) prior to the 1960s.

## Numbering

Most Metrobus routes in Northern Virginia begin with a single or double digit number followed by a letter.

## History

Many current routes operate under former streetcar routes. The streetcars provided the main transportation in the Northern Virginia area from the 1800s to the 1940s. The Alexandria, Barcroft and Washington Transit Company (AB&W) and the Washington Virginia & Maryland Coach Company (WV&M) operated some of the routes prior to 1973. In 1973, WMATA acquired the two bus companies along with other bus companies to form its current Metrobus system. At one point, most VA routes would enter into Downtown before Metro was built in which all buses would terminate at stations in various locations. Today, the main Northern VA hub is at Pentagon station which connects to Arlington Transit, DASH, Fairfax Connector, Loudoun County Transit, PRTC OmniRide, and Ride Smart Northern Shenandoah Valley lines.
Due to the COVID-19 pandemic, service was mostly reduced to Sunday service schedules during the weekdays with select routes both added and suspended from March 18 until August 22, 2020. Routes 16C, 28A, 29K, 29N, and REX were the only routes that ran during the weekends with the rest of the routes suspended. On August 23, 2020, more routes came back during the weekdays and weekends returning Metrobus service to 75%. Most service and routes resumed on September 5, 2021.
On November 21, 2024, WMATA approved its Better Bus Network Redesign, which began in 2022. Under the plan, all routes will be renamed with easier to understand route designations, and modify most of its existing routes with the goal of making the bus system easier to use, faster, and more reliable. Changes are expected to start on June 29, 2025. All Virginia routes will be renamed with an A (for Alexandria County routes) or F (for Fairfax County routes) route designation.

## Routes

Most Virginia Metrobus routes operate inside Northern Virginia. However a few routes will go into Downtown DC under former streetcar routings and demand.
| Route | Terminals | Terminals | Terminals | Streets traveled | Service notes | Divisions |
| 1A, 1B Wilson Boulevard–Vienna Line | 1A Vienna station 1B Dunn Loring station | ↔ | Ballston–MU station | Arlington Boulevard Wilson Boulevard | 1B: Weekday Peak Hour service only | Four Mile Run |
| 1C Fair Oaks–Fairfax Boulevard Line | Fair Oaks Mall | ↔ | Dunn Loring station | Arlington Boulevard Fairfax Boulevard | | Four Mile Run |
| 2A Washington Blvd.–Dunn Loring Line | Dunn Loring station | ↔ | Ballston–MU station | Lee Highway Washington Street Washington Boulevard | | Four Mile Run |
| 2B Fair Oaks–Jermantown Road Line | Fair Oaks Mall | ↔ | Dunn Loring station | Jermantown Road Lee Highway | | Four Mile Run |
| 3F, 3Y Langston Boulevard-McPherson Square Line | East Falls Church station | ↔ | 3F Farragut Square 3Y McPherson Square station | Constitution Avenue (3F) Lee Highway (3Y) Roosevelt Bridge K Street NW (3Y) | Weekday Peak Hour service only 3F: AM to East Falls Church, PM to Farragut Square 3Y: AM to McPherson Square, PM to East Falls Church | Four Mile Run |
| 4B Pershing Drive–Arlington Boulevard Line | Seven Corners Transit Center | ↔ | Rosslyn station | Arlington Boulevard Pershing Drive | | Four Mile Run |
| 7A Landmark–North Fairlington Line | Pentagon station | ↔ | Van Dorn Street station | Interstate 395 Van Dorn Street | Does not serve Pentagon City in the weekday peak hour direction Late night trips operate between Pentagon station and Southern Towers only. | Four Mile Run |
| 7M Mark Center–Pentagon Line | Mark Center | ↔ | Pentagon station | Interstate 395 | Weekday service between 5 a.m. and 6:30 p.m. only This route is free for those with valid government I.D. | Four Mile Run |
| 8W Foxchase–Seminary Valley Line | Mark Center | ↔ | Pentagon station | Interstate 395 | Weekday Peak Hour service only (AM to Pentagon, PM to Mark Center) | Four Mile Run |
| 10A Alexandria–Pentagon Line | Huntington station | ↔ | Pentagon station | Mount Vernon Avenue | | Four Mile Run |
| 10B Hunting Point–Ballston Line | Hunting Point | ↔ | Ballston–MU station | Mount Vernon Avenue Glebe Road | | Four Mile Run |
| 11Y Mount Vernon Express Line | Mount Vernon (Mt Vernon Highway & Grist Mill Woods Rd) | ↔ | West Potomac Park (18th & C Sts, NW) | George Washington Memorial Parkway 14th Street Bridge | Weekday Peak Hour Service only (AM to Potomac Park, PM to Mount Vernon) Express Fare ($4.25) | Cinder Bed |
| 16A, 16C, 16E Columbia Pike Line | 16A Annandale (Patriot & Americana Drives) 16C, 16E Culmore (Glen Carlyn & Vista Drives) | ↔ | 16A, 16C Pentagon station 16E Franklin Square (I & 13th Streets NW) | Columbia Pike | 16E: Late night & weekend early morning service to/from Culmore & Franklin Square in Downtown DC via 14th Street 16A & 16C: Limited Stop Segment between Pentagon station and Bailey's Crossroads (Columbia Pike & S. Carlin Springs Rd.) | Four Mile Run |
| 16M Columbia Pike–National Landing Line | Skyline City (Seminary Rd & Magnolia La) | ↔ | Crystal City station | Columbia Pike | | Four Mile Run |
| 16Y Columbia Pike–Farragut Square Line | Barcroft (Four Mile Run Dr & Columbia Pike) | ↔ | McPherson Square station | Columbia Pike Arlington Boulevard Roosevelt Bridge | Weekday Peak Hour service only | Four Mile Run |
| 17B, 17M Kings Park–North Springfield Line | 17B Burke Centre-VRE Park & Ride 17M North Springfield (Leesville Blvd & Appotamox Court) | ↔ | Pentagon station | Braddock Road Shirley Highway | Weekday peak hour service only 17B: AM to Pentagon, PM to Burke Centre-VRE Park & Ride 17M: AM to Pentagon, PM to North Springfield Express Fare ($4.25) | Cinder Bed |
| 17G, 17K Kings Park Express Line | 17G George Mason University 17K Kings Park West (Twinbrook Dr & Twinbrook Run Dr) | ↔ | Pentagon station | Braddock Road Capital Beltway Shirley Highway | Weekday peak hour service only 17G: AM to Pentagon, PM to George Mason University 17K: AM to Pentagon, PM to Kings Park West) Express Fare ($4.25) | Cinder Bed |
| 18G, 18J Orange Hunt Line | 18J Rolling Valley Mall 18G Orange Hunt (Huntsman Blvd & Fairfax County Pkwy | ↔ | Pentagon station | Old Keene Mill Road Shirley Highway | Weekday peak hour service only 18G: AM to Pentagon, PM to Orange Hunt 18J: AM to Rolling Valley Mall, PM to Pentagon | Cinder Bed |
| 18P Burke Centre Express Line | Burke Centre (Oak Leather Dr & Oakenshaw Court) | ↔ | Pentagon station | Old Keene Mill Road Shirley Highway | Weekday peak hour service only (AM to Pentagon, PM to Burke Centre) Express Fare 18P ($4.25) | Cinder Bed |
| 21C Landmark–Holmes Run Parkway Line | Landmark (Stevens Avenue & South Walker Street) | ↔ | Pentagon station | Interstate 395 | Weekday peak hour service only (AM to Pentagon, PM to Landmark) | Four Mile Run |
| 22A, 22F Barcroft–South Fairlington Line | 22A Ballston–MU station 22F Skyline City (Skyline House Apartments) | ↔ | Pentagon station | George Mason Drive (22A) Interstate 395 (22A, 22F) | 22F: Weekday peak hour service only (AM to Pentagon, PM to Skyline City) | Four Mile Run |
| 23A, 23B, 23T McLean–Crystal City Line | 23A, 23T Tysons Corner Center 23B Ballston–MU station | ↔ | 23A, 23B Crystal City station 23T Shirlington Transit Center | Old Dominion Drive Glebe Road | 23A: Early morning & late evening service only. | Four Mile Run |
| 25B Carlin Springs Road Line | Ballston–MU station | ↔ | Mark Center Southern Towers | Carlin Springs Road | No Sunday service between Mark Center and Southern Towers | Four Mile Run |
| 26A Annandale–East Falls Church Line | East Falls Church station | ↔ | NVCC–Annandale | Columbia Pike Little River Turnpike | Weekday service only | Cinder Bed |
| 28A Leesburg Pike Line | Tysons station (south side) | ↔ | King Street – Old Town station | Leesburg Pike | Limited Stop Segment between Duke & Jordan Streets and King Street – Old Town station. | Four Mile Run |
| 28F Skyline City Line | Skyline City (5113 S George Mason Drive) | ↔ | Pentagon station | Interstate 395 | Weekday peak hour service only (AM to Skyline City, PM to Pentagon) | Four Mile Run |
| 29G Annandale Line | Annandale (Americana & Heritage Drives) | ↔ | Pentagon station | Little River Turnpike Capital Beltway Shirley Highway | Weekday Peak Hour Service Only (AM to Pentagon, PM to Annandale) | Cinder Bed Road |
| 29K, 29N Alexandria–Fairfax Line | 29K George Mason University 29N Vienna station | ↔ | King Street – Old Town station | Little River Turnpike | Limited Stop Segment between Landmark Mall and King Street – Old Town station. | Cinder Bed Road |
| 38B Ballston–Farragut Square Line | Ballston–MU station | ↔ | Farragut Square | Clarendon Boulevard Wilson Boulevard Key Bridge M Street NW Pennsylvania Avenue NW K Street NW (to Farragut Square) I Street NW (to Ballston) | | Four Mile Run |
| MWY Metroway | Pentagon City station | ↔ | Braddock Road station | Clark Street Crystal Drive Richmond Highway | Uses dedicated bus lanes and serves 15 stops only | Four Mile Run |
| REX Richmond Highway Express | Fort Belvoir Post Exchange & Commissary via Gunston Road. | ↔ | King Street – Old Town station | Richmond Highway | Limited stop service only For local stop service, use Fairfax Connector 171. Weekend service ends at Fort Belvoir Community Hospital Select trips operate along Tully Gate | Cinder Bed |

## Routes history

| Route | History |
| 1A, 1B | Formerly known as the Wilson Boulevard-Fairfax Line. 1C was split from the line and renamed the Dunn Loring-Fair Oaks Line; the eastern half became the 1A route. Route 1D was eliminated on June 24, 2007. Route 1F was eliminated on December 29, 2013. Route 1Z was eliminated on June 26, 2016. Route 1E was eliminated on August 21, 2016, and replaced by ART route 54. |
| 1C | Originally part of the Wilson Boulevard Line until June 24, 2007 Eastern half was replaced by the 1A. 1C was extended to McConnell Public Safety and Transportation Operations Center from December 29, 2013, to March 14, 2021. |
| 2A | 2A used to serve Tysons Corner Shopping Center until replaced by 2T north of Dunn Loring station in the late 1990s. 2A replaced the 2B, 2C & 2G between Ballston and Dunn Loring stations and became a single route with daily service on December 29, 2013. |
| 2B | 2B & 2G between Dunn Loring station and Fair Oaks Mall became a single route (2B) with Monday-Saturday service and was extended to McConnell Public Safety and Transportation Operations Center on December 29, 2013. Also on that same day, route 2B was truncated to Dunn Loring station (the former 2B routing between Ballston and Dunn Loring stations is now serviced by route 2A). New Sunday service was added to route 2B beginning on June 26, 2016. Service to McConnell Public Safety and Transportation Operations Center was discontinued on March 14, 2021. |
| 3F, 3Y | Introduced on September 26, 2004. As of December 13, 2015, route 3Y was extended to operate between East Falls Church and McPherson Square stations. Service along North George Mason Drive, Patrick Henry Drive and North Harrison Street was discontinued and is now provided by ART 51. Route 3Y was truncated to Virginia Hospital Center on September 5, 2021 after being reinstated from suspension. Service to East Falls Church station was temporarily discontinued. A new Route 3F was introduced on December 26, 2021, operating between Farragut Square and East Falls Church station via I-66. The same day, Route 3Y was re-extended back to East Falls Church station. Route 3Y was rerouted along Arlington Memorial Bridge on May 29, 2022. |
| 4B | 4A replaced the 4H & 4B replaced the 4E on December 29, 2013. 4A service between Culmore and Seven Corners was replaced by route 26A on December 29, 2013. Saturday route 4A service was eliminated on June 26, 2016. 4A midday service was eliminated on June 24, 2018. Route 4A was suspended as of March 18, 2020; later discontinued by September 5, 2021. |
| 7A | 7Y was introduced in December 2010 to replace the former 13A and 13B routes, which was basically an extension of the 7E. 7E was replaced by the 7Y on June 30, 2013. All route 7F service along North Morgan and North Chambliss streets was eliminated on August 23, 2020. 7Y was extended to Washington Convention Center on August 24, 2014, but was shortened to Farragut Square on March 27, 2016. All Route 7F and 7Y service were eliminated on September 5, 2021. Route 7A was rerouted along the 25B routing between Southern Towers and Van Dorn Street station. Service to Lincolnia was replaced by DASH Route 35. |
| 7M | Originally a part of the Lincolnia-North Fairlington Line until June 26, 1983, being replaced by the 7D, 7E, 7W, 7X, 8W, & 8X. "Reincarnated" back into service on August 8, 2011, in anticipation of the relocation of military personnel associated with the BRAC realignment. |
| 8W | 8W was extended to Mark Center from Foxchase in 2011. 8X was replaced by the 8W on June 30, 2013. From May 25, 2019, to September 8, 2019, temporary Weekday Midday Service was added to the 8S and 8Z due to the Blue/Yellow Line summer shutdown. 8S and 8Z wereed as of March 16, 2020; later discontinued by September 5, 2021. 8Z was replaced by the 21C on June 6, 2021. |
| 10A | 10E originally terminated in Del Ray until extended to Braddock Road station in 2008. 10R & 10S were introduced on March 30, 2014 & 10S replaced the 9E. 10A was rerouted to Huntington station on June 26, 2016, replacing portions of the discontinued route 9A. 10R & 10S were discontinued on June 26, 2016. 10N was introduced on June 25, 2017, replacing the 13Y. 10E segment between Rosslyn and the Pentagon was eliminated on June 24, 2018. Route 10E has been suspended as of March 16, 2020, while Route 10N has been suspended as of August 21, 2020; both later discontinued by September 5, 2021. |
| 10B | Formerly known as the Alexandria-Arlington-Pentagon Line, along with 10A, the former 10C (which later became the Alexandria-Arlington Line) & 10E. |
| 11Y | 11Y terminated at Farragut Square until it was extended to Potomac Park in 2009. From May 25, 2019, to September 8, 2019, new temporary Weekday Midday service was added to the 11Y due to the Blue/Yellow Line shutdown and operated between Potomac Park and Hunting Point only. Service was suspended beginning on March 16, 2020, due to the COVID-19 pandemic. Part of the route was reincarnated as route 11C on June 6, 2021, which was cutback to Braddock Road station. Rotue 11Y was fully reincarnated on June 25, 2023, re-extending back into Washington DC. |
| 16A, 16C, 16E | 16D was replaced by the 16A & 16L on March 29, 2015. Daily service was added to 16A on June 24, 2018. 16B, 16J, & 16P was replaced by the 16A, 16C, 16E & 16H on June 24, 2018. 16C replaced the 16X on June 24, 2018. 16A & 16C serve limited stops on Columbia Pike in Arlington County, service to all stops on Columbia Pike in Arlington County are provided by routes 16E & 16M. 16C to Federal Triangle was suspended on March 16, 2020; later discontinued by September 5, 2021. |
| 16M | All Route 16G and 16H service were merged into a new Route 16M on June 25, 2023. |
| 16Y | Introduced on September 29, 2002 Service now operates in both directions during the weekday peak hours as of September 5, 2021. Route was rerouted along Arlington Memorial Bridge on May 29, 2022. |
| 17B, 17M | Beginning June 25, 2017, Route 17B trips will be changed to operate between Burke Centre VRE Park & Ride and Pentagon Metrorail Station. Route 17B service to Kings Park West (Zion Drive, Sideburn Road & Commonwealth Blvd) will be eliminated. The Kings Park Line will be renamed Kings Park-North Springfield Line. Routes 17A and 17F were eliminated on June 25, 2017. |
| 17G, 17K | Route 17L was suspended on March 16, 2020; later discontinued by September 5, 2021. All Route 17H and 17K service were merged into a new Route 17K on June 6, 2021. |
| 18G, 18J | Route 18G and 18H were combined into a new 18G on September 5, 2021. |
| 18P | 18P was known as the Orange Hunt-Burke Centre Line (along with the 18R) until the early 2000s. |
| 21C | Introduced on June 6, 2021, as a combination of the 8Z and 21A which were suspended. |
| 22A, 22F | 22A, 22C, & 22F was part of the Walker Chapel-Pentagon Line until 2003 22A, 22B, 22C, 22F replaced the 25A, 25C, 25D, & 25E on June 21, 2015. 22A: Sunday service began on June 21, 2015. 22B was replaced by 22A & 22C on June 24, 2018. Route 22C was suspended on March 16, 2020; later discontinued by September 5, 2021. Route 22F was extended to Skyline City replacing the 28G on June 6, 2021. |
| 23A, 23B, 23T | 23A was truncated from Tysons-Westpark Transit Station to Tysons Corner Center March 30, 2014. 23B & 23T were introduced March 30, 2014, replacing the 23C. 23B & 23T service added weekday middays, evenings & weekends beginning June 26, 2016, replacing most of the route 23A service. 23A now operates only during the early mornings and late nights. |
| 25B | 25B was once a part of the Ballston-Bradlee-Pentagon Line until 2007. Sunday service, which operates between Southern Towers and Ballston station, began on June 21, 2015. All service was shorten to Southern Towers on September 5, 2021, with weekday and Saturday trips ending/beginning at Mark Center. Service between Southern Towers and Van Dorn Street Station was replaced by the 7A. The line was also renamed to the Carlin Springs Road Line. |
| 26A | 26A was an East Falls Church Line that operated until 2009, "reincarnated" as the Annandale-East Falls Church Line on December 29, 2013. |
| 28A | First known as the Leesburg Pike Line, was known as the Alexandria-Tysons Corner Line until 2009. Upon changes in late 2009, 28B was discontinued and the 28A portion between Inova Alexandria Hospital and King Street Station became a limited-stop portion, the local stops have been replaced by DASH routes AT5 and AT6. Beginning June 25, 2017, Route 28A westbound trips to Tysons Corner (now Tysons) station will not operate via Tysons Corner Center (Towers Crescent Dr, Tysons One Place and Fashion Blvd). Eastbound trips to King Street-Old Town station will continue to operate via Tysons Corner Center. Service was rerouted between Seven Corners and Broad & Washington Streets to serve East Falls Church station, and was also rerouted between Inova Alexandria Hospital and Foxchase to Duke Street. Service along King Street and West Braddock Road was eliminated and replaced by DASH Routes 31 and 36. |
| 28F | |
| 29G | 29E was replaced by the 29G & 29W March 29, 2015. 29H was replaced by 16L on March 29, 2015. 29X was renamed 29W on March 29, 2015. |
| 29K, 29N | Operates limited-stop service along Duke Street between King St-Old Town Station & Landmark Mall, local stops provided by DASH 30. 29N was extended from Fairfax Circle to Vienna Station. 29K, 29N discontinued service between Royal & Pendleton Streets and King Street Station December 29, 2013. 29N operates on Sundays as of August 24, 2014. 29K operates weekend service as of June 26, 2016. |
| 38B | Replaced the 38A and 38C around the 1990s Replaced the 38F in 1981. Service to Union station was discontinued in the 1980s. |
| Metroway | Metroway was introduced on August 24, 2014, and replaced Route 9S. Metroway service was extended to Pentagon City and replaced the Pentagon City-Crystal City portion of the 16H on April 17, 2016. |
| REX | REX service started on September 26, 2004, covering the section of the 9A route that served Fort Belvoir. Beginning June 25, 2017, weekday service will extend to the Fort Belvoir Post Exchange/Commissary via Gunston Road. Service to Jackson Loop will be discontinued. Nearby stops will be served along Gunston Road at 5th Street. Weekend service was extended to the Fort Belvoir Post Exchange/Commissary on June 25, 2023. |

## Upcoming VA Better Bus Routes

These bus routes will begin on June 29, 2025 when WMATA Better Bus Redesign is released.

### Alexandria City and Arlington County Routes

| Route | Terminals | Terminals | Terminals | Streets traveled | Service notes |
| A11 | Huntington station | ↔ | Pentagon station | Mount Vernon Avenue | |
| A12 | Hunting Point | ↔ | Ballston–MU station | Glebe Road Mount Vernon Avenue | |
| A1X | Pentagon City station | ↔ | Braddock Road station | Clark Street Crystal Drive Richmond Highway | Part of 20-minute frequent service network |
| A25 | Pentagon station | ↔ | Landmark Mall Transit Center | Interstate 395 | Weekday peak-hour service only |
| A27 | Pentagon station | ↔ | Van Dorn Street station | Interstate 395 Van Dorn Street | Does not serve Pentagon City in the weekday peak hour direction |
| A28 | Pentagon station | ↔ | Landmark Mall Transit Center | Interstate 395 Holmes Run Parkway | Weekday peak hour service only (AM to Pentagon, PM to Landmark) |
| A40 | Skyline City (Seminary Road & Magnolia Lane) | ↔ | Crystal City station L'Enfant Plaza station (late night service) | Columbia Pike | Part of 12-minute frequent service network Late night service is extended to L’Enfant Plaza station |
| A49 | Culmore (Glen Carlyn & Vista Drives) | ↔ | Metro Center station | Columbia Pike Arlington Boulevard Roosevelt Bridge | Weekday peak hour service only |
| A58 | Ballston–MU station Seven Corners Transit Center | ↔ | Farragut Square | Clarendon Boulevard Wilson Boulevard Key Bridge M Street NW Pennsylvania Avenue NW K Street NW (to Farragut Square) I Street NW (to Ballston) | Part of 20-minute frequent service network Trips alternate ending between Seven Corners and Ballston. |
| A66 | Pentagon station | ↔ | Culmore (Glen Carlyn & Vista Drives) | Interstate 395 Leesburg Pike | Does not serve Pentagon City in the weekday peak hour direction |
| A70 | Tysons Corner Center Ballston-MU station | ↔ | Potomac Yard station | Old Dominion Drive Glebe Road | Part of 20-minute frequent service network Trips alternate ending between Ballston and Tysons Corner Center. |
| A71 | Ballston–MU station | ↔ | King Street – Old Town station | George Mason Drive South Four Mile Drive King Street | |
| A76 | Rosslyn station | ↔ | Mark Center | North Arlington Boulevard Carlin Springs Road | |
| A90 | Pentagon station | ↔ | Mark Center | Interstate 395 | Weekday service only |

#### Route History

| Route | History |
| A11 | Existing routing of the former Route 10A. |
| A12 | Existing routing of the former Route 10B. |
| A1X | Existing routing of the former Metroway. |
| A25 | Combination of the former Route 8W and 22F with an extension to Landmark. |
| A27 | Existing routing of the former Route 7A. |
| A28 | Existing routing of the former Route 21C with an extension to Landmark Mall. |
| A40 | Existing routing of the former Route 16M and a modified routing of Route 16E. |
| A49 | Combination of the former Route 16C and a modified routing of the former Route 16Y. |
| A58 | Combination of the former Routes 1A and 1B between Seven Corners and Ballston, and the former Route 38B route. |
| A66 | Combination of the former Route 16C in Culmore, and former Route 22A between Pentagon and Shirlington. |
| A70 | Existing routing of the former 23A, 23B, and 23T between Tysons Corner and South Kenmore Street, then a modified routing to Potomac Yard station. |
| A71 | Existing routing of the former 22A between Ballston and Shirlington, then a reroute to King Street station via King Street. |
| A76 | Existing routing of the former Route 25B with an extension to Rosslyn via North Arlington Boulevard and 10th Street. |
| A90 | Existing routing of the former Route 7M. |

### Fairfax County Routes

| Route | Terminals | Terminals | Terminals | Streets traveled | Service notes |
| F1X | Fort Belvoir Post Exchange & Commissary via Gunston Road. | ↔ | King Street – Old Town station | Richmond Highway | Part of 20-minute frequent service network Weekend service ends at Fort Belvoir Community Hospital Select trips operate along Tully Gate |
| F19 | Mount Vernon (Mt Vernon Highway & Grist Mill Woods Rd) | ↔ | West Potomac Park (18th & C Sts, NW) | George Washington Memorial Parkway 14th Street Bridge North Washington Street | Weekday Peak Hour Service only (AM to Potomac Park, PM to Mount Vernon) |
| F20 | Tysons station (south side) | ↔ | King Street – Old Town station | Leesburg Pike | Part of 12-minute frequent service network |
| F23, F24 | F23 George Mason University F24 Vienna station | ↔ | King Street – Old Town station | Little River Turnpike | Part of 20-minute frequent service network |
| F26 | East Falls Church station | ↔ | NVCC–Annandale | Columbia Pike Little River Turnpike | |
| F28 | Pentagon station | ↔ | Kings Park West (Twinbrook Drive & Twinbrook Run Drive) | Braddock Road Capital Beltway Shirley Highway | Weekday peak hour service only (AM to Pentagon, PM to Kings Park West) |
| F29 | Pentagon station | ↔ | George Mason University | Braddock Road Capital Beltway Shirley Highway | Weekday peak hour service only (AM to Pentagon, PM to George Mason University) |
| F44 | Pentagon station | ↔ | Annandale (Patriot & Americana Drives) | Columbia Pike | |
| F50 | Ballston–MU station | ↔ | Vienna station George Mason University | Langston Boulevard Washington Street Washington Boulevard Blenheim Boulevard | Weekend service only operates between Ballston and Vienna. |
| F60 | Ballston–MU station | ↔ | Vienna station Fair Oaks Mall | Wilson Boulevard Arlington Boulevard Fairfax Boulevard | Part of 20-minute frequent service network Trips alternate ending at Vienna or Fair Oaks Mall. |
| F62 | Rosslyn station | ↔ | Seven Corners Transit Center Dunn Loring station | Arlington Boulevard Pershing Drive | On weekdays, all trips end at Dunn Loring. On weekends, trips alternate ending at Seven Corners or Dunn Loring. |
| F64 | Fair Oaks Mall | ↔ | Vienna station | Jermantown Road Langston Boulevard | |
| F81 | Burke Centre (Oak Leather Dr & Oakenshaw Court) | ↔ | Pentagon station | Old Keene Mill Road Shirley Highway | Weekday peak hour service only |
| F83 | Orange Hunt (Huntsman Blvd & Fairfax County Pkwy) | ↔ | Pentagon station | Old Keene Mill Road Shirley Highway | Weekday peak hour service only (AM to Pentagon, PM to Orange Hunt) |
| F85 | Annandale (Americana & Heritage Drives) | ↔ | Pentagon station | Little River Turnpike Shirley Highway | Weekday peak hour service only (AM to Pentagon, PM to Annandale) |

#### Route History

| Route | History |
| F1X | Existing routing of the former Richmond Highway Express. |
| F19 | Existing routing of the former Route 11Y. |
| F20 | Existing routing of the former Route 28A. |
| F23, F24 | Existing routing of the former Routes 29K and 29N. |
| F26 | Existing routing of the former Route 26A. |
| F28 | Existing routing of the former Route 17K. |
| F29 | Combination routing of the former Routes 17B, 17G, and 17M. |
| F44 | Existing routing of the former Route 16A. |
| F50 | Combination routing of the former Route 2A between Ballston and Dunn Loring, and Route 2B from Dunn Loring and Vienna with an extension to George Mason University. |
| F60 | Combination routing of the former Routes 1A, 1B, and 1C. |
| F62 | Combination routing of the former 1B between Dunn Loring and Seven Corners, and existing Route 4B. |
| F64 | Modified routing from the former Route 2B with service to Dunn Loring being eliminated. |
| F81 | Existing routing of the former Routes 18J and 18P. |
| F83 | Existing routing of the former Route 18G. |
| F85 | Existing routing of the former Route 29G. |

## Former routes
### Routes eliminated prior to 2025 Bus Redesign

During the years, Fairfax Connector, DASH, Arlington Transit, and PRTC OmniRide took over parts of Northern Virginia for WMATA as it would be easier to operate and maintain. Some of the discontinued routes from WMATA are now operated under those bus carriers. Other routes were discontinued due to either low ridership, duplication of another route, merged into other routes, or low funding. However some routes would be reincarnated into new routes for Metrobus. Examples of reincarnations were the 7M, 16C, and 26A.
| Route | Terminals | Terminals | Terminals | Streets traveled | History |
| 1D Wilson Boulevard-Fairfax Line | Dunn Loring station | ↔ | Ballston–MU station | Wilson Boulevard | Discontinued on June 24, 2007. |
| 1E Wilson Boulevard–Vienna Line | Seven Corners Transit Center | ↔ | Ballston–MU station | Wilson Boulevard | Discontinued on August 21, 2016, replaced by ART route 54. |
| 1F Wilson Boulevard Line | Seven Corners Transit Center | ↔ | Ballston–MU station | Wilson Boulevard | Discontinued on December 29, 2013, replaced by 1A. |
| 1H | | ↔ | | | |
| 1M, 1V, 1W Wilson Boulevard-Annandale Line | Annandale | ↔ | | Wilson Boulevard | |
| 1X Wilson Boulevard-Fairfax Line | Annandale | ↔ | | Wilson Boulevard | |
| 1Z Wilson Boulevard–Vienna Line | Vienna station | ↔ | Ballston–MU station | Wilson Boulevard Arlington Boulevard | Discontinued on June 26, 2016, replaced by 1A. |
| 2C, 2G Washington Boulevard Line | Ballston–MU station | ↔ | 2C Tysons Corner 2G Fair Oaks Mall | Washington Boulevard | Discontinued on December 29, 2013, replaced by 2A, 2B & Fairfax Connector routes 401 & 402. |
| 2M Washington Boulevard Line | Ballston–MU station | ↔ | | Washington Boulevard | |
| 2T Tysons Corner–Dunn Loring Line | Tysons station | ↔ | Dunn Loring station | Chain Bridge Road | Discontinued on June 25, 2017. |
| 2V | | ↔ | | | |
| 2W Vienna-Oakton Line | Oakton | ↔ | Vienna station | Chain Bridge Road | Discontinued on June 28, 2009. Replaced by Fairfax Connector 466. |
| 2X | | ↔ | | | |
| 3A Annandale Road Line | Annandale (Patriot & Americana Drives) | ↔ | Seven Corners Transit Center | Annandale Road | 3B service between East Falls Church and West Falls Church was replaced by an extended route 3T December 29, 2013. As of December 13, 2015, route 3A no longer serves Rosslyn station and was shortened to operate between Annandale and East Falls Church station only. The former 3A routing along Lee Highway between East Falls Church and Rosslyn stations is now serviced by ART Route 55. Transferred to Fairfax Connector and renamed to Route 803 on July 10, 2021. |
| 3B, 3E Lee Highway Line | 3B West Falls Church station 3E East Falls Church station | ↔ | Rosslyn station | Lee Highway W. Broad Street (3B) | Discontinued on December 29, 2013, and replaced by 3A. |
| 3F Lee Highway Line | Tysons Corner Center | ↔ | Rosslyn station | | Discontinued on June 30, 2002, replaced by 3T. 3F was reincarnated as the Lee Highway–Farragut Square Line on December 26, 2021. |
| 3R | | ↔ | | | |
| 3T | | ↔ | | | Reincarnated as the "Pimmit Hills Line" in 2002. |
| 3T Pimmit Hills Line | McLean station | ↔ | West Falls Church station (Off-peak periods) East Falls Church station (Peak periods) | Leesburg Pike | 3T was created to replace the portion of the 3B, 3F, 3Z and 14W west of West Falls Church station on June 30, 2002. 3T was extended to McLean station & to East Falls Church station December 29, 2013, replacing the 3B and 3E. Service was rerouted to McLean station on July 26, 2014. 3T was truncated from East Falls Church station to West Falls Church station on June 26, 2016 but was extended back to East Falls Church station during rush hour on December 30, 2018, which is funded by the I-66 Commuter Choice Program. Transferred to Fairfax Connector and renamed to Route 703 on July 10, 2021. |
| 3W, 3Z Westpark-West Falls Church Line | West Falls Church station | ↔ | Tysons-Westpark Transit Center | | Discontinued on June 30, 2002. Replaced by 2T, 3T and 28T. |
| 4A Pershing Drive–Arlington Boulevard Line | Seven Corners Transit Center | ↔ | Rosslyn station | Arlington Boulevard | 4A replaced the 4H on December 29, 2013. 4A service between Culmore and Seven Corners was replaced by route 26A on December 29, 2013. Saturday route 4A service was eliminated on June 26, 2016. 4A midday service was eliminated on June 24, 2018. Suspended on March 18, 2020; later discontinued by September 5, 2021. |
| 4C Culmore-Ballston Line | | ↔ | | | |
| 4E, 4H Pershing Drive–Arlington Boulevard Line | Rosslyn station | ↔ | 4E Arlington Forest 4H Seven Corner Transit Center | Pershing Drive Arlington Boulevard | Discontinued on December 29, 2013, and replaced by 4A and 4B. |
| 4G | | ↔ | | | |
| 4S Pershing Drive–Arlington Boulevard Line | Annandale | ↔ | Rosslyn station | Sleepy Hollow Road Arlington Boulevard | Cut back to Seven Corners on September 24, 2006, and renamed as Route 4H. |
| 5A, 5B, 5C North Reston Express Line | Reston | ↔ | | Interstate 66 | |
| 5A D.C.–Dulles Line | Washington Dulles International Airport | ↔ | L'Enfant Plaza station (D & 7th Streets SW) | Dulles Toll Road Interstate 66 14th Street Bridge | Discontinued on November 16, 2022, and replaced by the Silver Line Phase 2 extension. |
| 5B D.C.-Tysons Corner Line | Tysons Corner Center | ↔ | L'Enfant Plaza station (D & 7th Streets SW) | Dulles Toll Road Interstate 66 14th Street Bridge | Discontinued on September 24, 2006. An earlier different line also numbered 5B was called Reston North Line. |
| 5D North Reston Express Line | Reston | ↔ | | Interstate 66 | Discontinued in 1996. |
| 5E, 5G, 5H South Reston Express Line | Franklin Farm, Reston | ↔ | | Interstate 66 | |
| 5E1 | Reston | ↔ | Downtown | Dulles Toll Road Interstate 66 VA State Route 110 Interstate 395 | |
| 5F | Franklin Farm, Reston | ↔ | | | |
| 5J | | ↔ | | | |
| 5K Chain Bridge Road Line | Rosslyn station | ↔ | Fairfax | Chain Bridge Road | |
| 5N Chain Bridge Road Line | | ↔ | | | |
| 5P | | ↔ | | | |
| 5S Herndon-West Falls Church Line | Herndon | ↔ | West Falls Church station Ballston–MU station | Leesburg Pike | 5S was transferred to the Fairfax Connector in 1994. |
| 5W | | ↔ | | | |
| 5Y Herndon Express Line | | ↔ | | | |
| 5Z Tysons Corner Express Line | | ↔ | | | |
| 6A Bradlee-South Fairlington Line | | ↔ | | | |
| 6B, 6E, 6F Bradlee-South Fairlington Line | Pentagon station | ↔ | | King Radford Street | Discontinued March 11, 1984. |
| 6D | Pentagon station | ↔ | US Route 1 and Glebe Road | | |
| 6G | Braddock Road station | ↔ | Pentagon station | | |
| 6L | Park Center | ↔ | Pentagon station | | |
| 6P | | ↔ | | | |
| 7B Lincolnia-Park Center-Pentagon Line | Pentagon station | ↔ | NVCC Alexandria campus | Interstate 395 | Discontinued on March 29, 2015, replaced by 28G. |
| 7C, 7P Park Center–Pentagon Line | Park Center (2701 Park Center Drive) | ↔ | Pentagon station | Interstate 395 Walter Reed Drive | Formerly part of the Lincolnia-North Fairlington Line until December 2010 Formerly part of the Lincolnia-Park Center-Pentagon Line until December 18, 2016. 7B endpoint changed from Southern Towers to Northern Virginia Community College-Alexandria on March 30, 2014. 7B was replaced by the 28G on March 29, 2015. 7H was discontinued March 27, 2016. Suspended on March 18, 2020; later discontinued by September 5, 2021. |
| 7D Lincolnia-Park Center-Pentagon Line | Pentagon station | ↔ | Southern Towers Apartments (Stratford Bldg.) | Interstate 395 | Discontinued on June 17, 2012. |
| 7E Lincolnia-North Fairlington Line | Pentagon station | ↔ | Southern Towers Apartments (Stratford Bldg.) | Interstate 395 | Discontinued on June 30, 2013, replaced by 7Y. |
| 7F, 7Y Lincolnia–North Fairlington Line | 7F Lincolnia (Lincolnia Rd & Breckenridge Pl) 7Y Southern Towers Apartments (Stratford Bldg.) | ↔ | 7F Pentagon station 7Y Farragut Square | Interstate 395 VA State Route 110 (7Y) Constitution Ave. NW (7Y) | Discontinued on September 5, 2021; replaced by Route 7A. |
| 7G, 7L, 7M Lincolnia-North Fairlington Line | Pentagon station | ↔ | | Interstate 395 | Discontinued June 26, 1983, replaced by 7D, 7E, 7W, 7X, 8W, & 8X. 7M was reincarnated as the Mark Center-Pentagon Line in 2011. |
| 7H Lincolnia-Park Center-Pentagon Line | Pentagon station | ↔ | Lincolnia (Lincolnia Rd & Quantrell Av) | Interstate 395 | Discontinued on March 27, 2016. |
| 7W Lincolnia–Pentagon Line | Lincolnia (Lincolnia Rd & Quantrell Av) | ↔ | Pentagon station | Interstate 395 | Formerly part of the Lincolnia-North Fairlington Line until December 2010. Formerly part of the Lincolnia-Park Center-Pentagon Line until December 18, 2016. 7X service to Arbor Park was discontinued March 27, 2016. All 7X trips begin/end on Lincolnia Road & Quantrill Avenue in Lincolnia. Route 7X was replaced by the 7W on June 25, 2017. Discontinued on September 5, 2021, and replaced by DASH Route 35. |
| 7X Lincolnia-Pentagon Line | Pentagon station | ↔ | Lincolnia (Lincolnia Rd & Quantrell Av) | Interstate 395 | Discontinued on June 25, 2017, replaced by the 7W. |
| 8M Foxchase-Seminary Valley Line | Southwest Mall | ↔ | Shirley Duke | Interstate 395 | Discontinued June 26, 1983, replaced by 8W & 8X. |
| 8S, 8Z Foxchase–Seminary Valley Line | 8S Quaker Lane (& Radford Street) 8Z Quaker Lane (& Osage Street) | ↔ | Pentagon station | Interstate 395 | 8X was replaced by the 8W on June 30, 2013. From May 25, 2019, to September 8, 2019, temporary Weekday Midday Service was added to the 8S and 8Z due to the Blue/Yellow Line summer shutdown. Suspended on March 16, 2020; later discontinued by September 5, 2021. 8Z is replaced by 21C on June 6, 2021. |
| 8X Foxchase-Seminary Valley Line | Pentagon station | ↔ | Quaker Lane (& Osage Street) | Interstate 395 | Discontinued on June 30, 2013, replaced by 8W. |
| 8Y | | ↔ | | | Discontinued on September 24, 1978, replaced by 21C. |
| 9A Huntington-Pentagon Line | Pentagon station | ↔ | Huntington station | Jefferson Davis Highway | Discontinued on June 26, 2016, replaced by 10A. |
| 9B Hunting Towers–Potomac Yard–Crystal City Line | Hunting Towers | ↔ | Crystal City station | Crystal Drive Clark Street Jefferson Davis Highway Washington Street | Named Richmond Highway Line (along with Route 9A and Route 9E) until June 26, 2005 Discontinued on June 25, 2006, replaced by DASH AT10. |
| 9C, 9D, 9F, 9G Fort Belvoir–Pentagon Line | Fort Belvoir | ↔ | Pentagon station | | Discontinued on June 29, 1997, and replaced by routes 9A, 9B, and 9E. |
| 9E Huntington-Potomac Yard-Pentagon Line | Braddock Road station | ↔ | Rosslyn station | Jefferson Davis Highway | Discontinued on March 30, 2014, replaced by 10S. |
| 9P Fort Belvoir Line | | ↔ | | | Discontinued on June 26, 1983, and replaced by routes 9A and 9B. |
| 9S Crystal City-Potomac Yard Shuttle | Crystal City station | Crystal City station | Crystal City station | Clark Street Crystal Drive Potomac Avenue | This route operated as a loop Replaced ART Route 90 on April 24, 2006. Discontinued on August 24, 2014, replaced by Metroway. |
| 10C, 10D Alexandria–Arlington Line | 10C: East Falls Church station 10D: Seven Corners Transit Center | ↔ | Hunting Point | Mount Vernon Avenue Williamsburg Boulevard Little Falls Road Yorktown Boulevard Roosevelt Boulevard (10D) | Discontinued on December 30, 2001, and replaced by route 10B and ART routes 51 and 52. |
| 10E, 10N Alexandria–Pentagon Line | 10E: Hunting Point 10N: Ronald Reagan Washington National Airport station | ↔ | Pentagon station | Mount Vernon Avenue | 10E was suspended on March 16, 2020, while 10N was suspended on August 21, 2020; both were later discontinued by September 5, 2021. |
| 10P Mount Vernon Avenue-Potomac Yard-Crystal City Line | Crystal City station | ↔ | Braddock Road station | Mount Vernon Avenue Glebe Road Jefferson Davis Highway Crystal Drive | Discontinued on June 25, 2006, replaced by DASH AT10 |
| 10R, 10S Hunting Towers-Pentagon Line | 10R Hunting Towers 10S Braddock Road station | ↔ | Rosslyn station | Mount Vernon Avenue (10R) Jefferson Davis Highway (10S) Washington Street (10R) | Discontinued on June 26, 2016. |
| 10S, 10T Alexandria–Arlington–Pentagon Line | Hunting Towers | ↔ | | | Discontinued on March 11, 1984. |
| 11A National Airport-Washington Line | Federal Triangle | ↔ | Mount Vernon | George Washington Memorial Parkway Washington Street Fort Hunt Road | |
| 11B National Airport-Landmark Line | Rose Hill | ↔ | National Airport | George Washington Memorial Parkway Washington Street | |
| 11C National Airport-Landmark Line | Mount Vernon Hospital | ↔ | National Airport | George Washington Memorial Parkway Washington Street Huntington Avenue N Kings Highway Richmond Highway | 11C was reincarnated as the Mount Vernon Line on June 6, 2021. |
| 11C Mount Vernon Line | Mount Vernon (Mt Vernon Highway & Grist Mill Woods Rd) | ↔ | Braddock Road station | George Washington Memorial Parkway Mount Vernon Memorial Parkway | Weekday peak hour service only (AM to Braddock Road, PM to Mount Vernon) Introduced on June 6, 2021, as a replacement to the suspended route 11Y. Was replaced by the Mount Vernon-Potomac Park Shuttle (DC3) between September 10, 2022, until May 2023 due to the Yellow Line suspension which was later fully discontinued on June 25, 2023, after the 11Y was reinstated. |
| 11D National Airport-Springfield Line | Springfield | ↔ | National Airport | George Washington Memorial Parkway Washington Street Franconia Road | |
| 11E | Federal Triangle | ↔ | Landmark | George Washington Memorial Parkway Washington Street Duke Street | This route is discontinued when Huntington Station opened. Replaced by 29K, 29L, 29M, 29N. Route was further replaced by DASH AT8 |
| 11F National Airport-Landmark Line | | ↔ | | | |
| 11G | | ↔ | | | |
| 11H, 11T Mount Vernon Line | National Airport | ↔ | Mount Vernon | | Discontinued in 1991. |
| 11M, 11P National Airport-Washington Line | National Airport | ↔ | | | |
| 11P Hunting Towers–Potomac Yard–Crystal City Line | Hunting Towers | ↔ | Crystal City station | Crystal Drive Jefferson Davis Highway Washington Street | Once called the Mount Vernon Line, along with Routes 11H and 11X; later the Alexandria-National Airport Line Renamed as Route 9B on September 26, 2004. |
| 11W National Airport-Washington Line | | ↔ | | | |
| 11X National Airport-Landmark Line | | ↔ | | | Discontinued March 11, 1984. |
| 11Y, 11Z National Airport-Washington Line | Woodlawn Plantation | ↔ | 10th & Pennsylvania | | |
| 12A, 12E, 12F, 12G Centreville South Line | Centreville South | ↔ | Vienna station | Interstate 66 | All routes discontinued on June 28, 2009. Replaced by Fairfax Connector. |
| 12C, 12D Centreville North Line | Sully Station/Westfields | ↔ | Vienna station | Interstate 66 | All routes discontinued on June 28, 2009. Replaced by Fairfax Connector. |
| 12L, 12M Little Rocky Run-Vienna Line | 12L Little Rocky Run 12M Centreville North | ↔ | Vienna station | Interstate 66 | All routes discontinued on June 28, 2009. Replaced by Fairfax Connector. |
| 12R, 12S Stringfellow Road-Vienna Line | Westfields | ↔ | Vienna station | Interstate 66 | All routes discontinued on June 28, 2009. Replaced by Fairfax Connector. |
| 12A, 12E Alexandria–Pentagon Line | Pentagon station | ↔ | Federal Triangle | | Discontinued on March 11, 1984. |
| 12B Alexandria–Pentagon Line | Pentagon station | ↔ | Federal Triangle | | Discontinued on June 26, 1983, and replaced by 12E & 15B |
| 13A, 13B National Airport-Pentagon-Washington Line | Pentagon station | ↔ | Federal Triangle | VA State Route 110 Arlington Memorial Bridge Constitution Avenue NW Independence Avenue SW 14th Street Bridge | Discontinued on December 19, 2010, and replaced by routes 7Y and 16F. |
| 13C, 13D Pentagon-Washington Line | Pentagon station | ↔ | Capitol Hill | VA State Route 110 Arlington Memorial Bridge 14th Street Bridge | |
| 13E Pentagon-Washington Line | Pentagon station | ↔ | Federal Triangle | VA State Route 110 Arlington Memorial Bridge Constitution Avenue NW Independence Avenue SW 14th Street Bridge | |
| 13F, 13G National Airport-Pentagon-Washington Line | Ronald Reagan Washington National Airport station | ↔ | Federal Triangle | VA State Route 110 Arlington Memorial Bridge Constitution Avenue NW Independence Avenue SW 14th Street Bridge | Discontinued on March 30, 2014, and replaced by the 13Y. |
| 13M Pentagon-Rosslyn Line | Pentagon station | ↔ | Rosslyn station | | |
| 13Y Arlington–Union Station Line | Ronald Reagan Washington National Airport station | ↔ | Washington Union Station | E Street 14th Street Bridge | Discontinued on June 25, 2017, and replaced by the 10N. |
| 14A, 14B, 14C, 14D Montgomery-Tysons Beltway Express | Tysons-Westpark Transit Center | ↔ | 14A, 14B: Bethesda station 14C, 14D: Lakeforest Transit Center | American Legion Bridge Capital Beltway | Discontinued on December 27, 2003. |
| 14E | | ↔ | | | Discontinued on June 26, 1983, and replaced by 14A and 14B. |
| 14M Montgomery-Tysons Beltway Express | Bethesda station | ↔ | Tysons-Westpark Transit Center | American Legion Bridge Capital Beltway | Renamed route 14A on June 25, 2000. |
| 14T, 14W Tysons-Westpark Shuttle | Tysons-Westpark Transit Center | Tysons-Westpark Transit Center | Tysons-Westpark Transit Center | Leesburg Pike (14T) Old Courthouse Road (14T) International Drive (14T) Dolley Madison Boulevard (14W) | Operated as loops Discontinued on June 30, 2002 |
| 15A Alexandria–Pentagon Line | Pentagon station | ↔ | | | Discontinued on March 11, 1984. |
| 15B | Pentagon City station | ↔ | | Army-Navy Drive | |
| 15D Alexandria–Pentagon Line | | ↔ | | | Discontinued on March 11, 1984. |
| 15F | Pentagon station | ↔ | | | Renamed 15A on September 24, 1978. |
| 15K Chain Bridge Road Line | East Falls Church station | ↔ | Langley Rosslyn station (First morning northbound trip) | Chain Bridge Road Dolly Madison Blvd | 15K & 15L used to serve George Mason University until their route south of Tysons Corner Shopping Center was replaced by the "reincarnated" 15M in 2009. 15K & 15L western terminal changed from Tysons Corner Center to East Falls Church Station on December 29, 2013. Route 15L was replaced by the 15K on June 25, 2017. Transferred to Fairfax Connector and renamed to Route 715 on July 10, 2021. |
| 15L Chain Bridge Road Line | East Falls Church station | ↔ | Rosslyn station | Chain Bridge Road Dolly Madison Boulevard | Discontinued on June 25, 2017, and replaced by 15K. |
| 15M George Mason University-Tysons Corner Line | Tysons station | ↔ | George Mason University | Chain Bridge Road | Discontinued on June 26, 2016. |
| 16B, 16J, 16P Columbia Pike Line | Pentagon station | ↔ | 16B, 16J, 16P Culmore (Glen Carlyn & Vista Drives) 16B Annandale (Patriot & Americana Drives) | Columbia Pike | Discontinued on June 24, 2018; replaced by 16A, 16C, 16E & 16H. |
| 16C Columbia Pike Line | Pentagon station | ↔ | Culmore | Columbia Pike | Discontinued on September 7, 2003. 16C was brought back into service on June 24, 2018. |
| 16D Columbia Pike Line | Pentagon station | ↔ | Annandale (Patriot & Americana Drives) | Columbia Pike | Discontinued on March 29, 2015; replaced by 16A & 16L. |
| 16F Columbia Pike–Federal Triangle Line | Culmore (Glen Carlyn & Vista Drives) | ↔ | Federal Triangle (11th & E Streets, NW) | Columbia Pike 14th Street Bridge Independence Avenue SW | Renamed 16X on December 30, 2012. |
| 16G, 16H Columbia Pike–Pentagon City Line | 16G Arlington Mill (Dinwiddie St & Columbia Pike) 16H Skyline City (Seminary Rd & Magnolia La) | ↔ | Pentagon station | Columbia Pike | 16H originally terminated at Pentagon City station until it was extended to Crystal City station in 2005; absorbed the 16W's route & extended to Skyline City from Bailey's Crossroads in December 2010. 16G was part of the Columbia Pike Line until 2003. 16H service between Pentagon City & Crystal City was discontinued on March 27, 2016 & was replaced by the new Metroway service extension, which opened on April 17, 2016. 16K was eliminated on June 24, 2018. Daily service was added to the 16H on June 24, 2018. Combined into one single route and renamed into Route 16M on June 25, 2023. Service to Arlington Mill was discontinued. |
| 16K Columbia Heights West-Pentagon City Line | Pentagon station | ↔ | Arlington Mill (Dinwiddie St & Columbia Pike) | Columbia Pike | Discontinued on June 24, 2018, and replaced by 16G. |
| 16L Annandale–Skyline City–Pentagon Line | Annandale (Heritage Dr. & McWhorter Pl.) | ↔ | Pentagon station | Columbia Pike Seminary Road Interstate 395 | Originally part of the Columbia Pike Line until 1987, when it became the Columbia Pike Express Line. Changed to the Annandale-Skyline City-Pentagon Line in 2003. 16L was extended to McWhorter Place in Annandale, replacing the 16D & 29H on March 29, 2015. Suspended as of March 16, 2020; later discontinued by September 5, 2021. |
| 16S, 16U, 16X Shirlington-Pentagon Line | Pentagon station | ↔ | Shirlington (Quincy Street & 28th Street S.) | Columbia Pike (16U, 16X) Four Mile Run Drive (16X) Interstate 395 (16S) | Discontinued on September 7, 2003. 16S was replaced by ART 87X in the late 2000s. 16U and 16X was replaced by 16G, 16H, 16K, and 16W. |
| 16V Shirlington-Pentagon Line | Pentagon station | ↔ | Shirlington | | Discontinued on June 26, 1983. |
| 16W Columbia Heights West–Pentagon City Line | Pentagon station | ↔ | Skyline City | Columbia Pike | Discontinued on December 19, 2010, and replaced by 16H. |
| 16X Columbia Pike–Federal Triangle Line | Culmore (Glen Carlyn & Vista Drives) | ↔ | Federal Triangle (11th & F Streets, NW) | Columbia Pike 14th Street Bridge Independence Avenue SW | Discontinued on June 24, 2018, and replaced by 16C. |
| 17A, 17F Kings Park Line | Pentagon station | ↔ | 17A George Mason University 17F Kings Park West (Twinbrook Dr & Twinbrook Run Dr) | Braddock Road Shirley Highway | Discontinued on June 25, 2017; replaced by 17B, 17G, 17H, 17K, 17L, 17M. |
| 17C | | ↔ | | | |
| 17H Kings Park Express Line | Kings Park West (Twinbrook Dr & Twinbrook Run Dr) | ↔ | Pentagon station | Braddock Road Capital Beltway Shirley Highway | Merged into route 17K on June 6, 2021. |
| 17L Kings Park Express Line | Kings Park West (Twinbrook Dr & Twinbrook Run Dr) | ↔ | Pentagon station | Braddock Road Capital Beltway Shirley Highway | Suspended as of March 16, 2020; later discontinued by September 5, 2021. |
| 17P, 17Z | Kings Park | ↔ | Downtown D.C. | Braddock Road Shirley Highway Little River Turnpike | |
| 18A, 18B Springfield Line | Pentagon station | ↔ | Bren Marr | Shirley Highway | Discontinued on June 29, 1997, and replaced 18E, 18F, & 18G. |
| 18C Orange Hunt-Burke Center Line | | ↔ | | | |
| 18D, 18N | Pentagon station | ↔ | Van Dorn Street Station (18D) | | Discontinued in 1992 and replaced by Fairfax Connector. |
| 18E, 18F Springfield Line | Pentagon station | ↔ | Springfield (Commercial Dr & Industrial Rd) | Shirley Highway | Discontinued on June 26, 2016. |
| 18H Orange Hunt Line | Orange Hunt (Huntsman Blvd & Cork County Court) | ↔ | Pentagon station | Old Keene Mill Road Shirley Highway | Merged with Route 18G on September 5, 2021. |
| 18K Orange Hunt Line | Orange Hunt | ↔ | | Keene Mill Road Huntsman Boulevard Sydenstricker Road Field Master Drive Conservative Drive | Discontinued on June 29, 1997, and replaced by routes 18H, and 18R. |
| 18L | | ↔ | | | Discontinued on June 29, 1997, and replaced 18S. |
| 18M | West Springfield | ↔ | Southwest Mall | | |
| 18R, 18S Burke Centre Line | Franconia–Springfield station | ↔ | 18R Burke (Coffer Woods Dr & Blincoe Ct) 18S Burke Centre (Oak Leather Dr & Oakenshaw Ct) | Old Keene Mill Road | Discontinued on June 25, 2017; replaced by 18H & 18P. |
| 18X, 18Y Burke Centre Line | Springfield | ↔ | Pentagon station | Old Keene Mill Road | Discontinued on September 24, 1978, and replaced by 18A & 18E. |
| 19G Huntington Line | Pentagon station | ↔ | | | |
| 19L Lorton Express Line | | ↔ | | | |
| 20A Fair Oaks Line | Fairfax Government Center | ↔ | Vienna/Fairfax–GMU station | Interstate 66 | Transferred to Fairfax Connector at some point; renumbered 621 |
| 20G, 20P | Fair Lakes | ↔ | Vienna/Fairfax–GMU station | Interstate 66 | Transferred to Fairfax Connector at some point; renumbered 623, and 622 respectively in June 2001. |
| 20E Fairfax City Express | Fairfax | ↔ | | Interstate 66 | Discontinued in 1986, when Vienna station opened and Fairfax's CUE Bus system was extended to it. |
| 20F, 20W, 20X, 20Y Chantilly-Greenbriar Line | Franklin Farm (20F) Chantilly (20W, 20X) Sullyfield Circle (20Y) | ↔ | Vienna/Fairfax–GMU station | Lee Jackson Highway Interstate 66 | Discontinued on June 28, 2009. Replaced by Fairfax Connector. |
| 21A, 21D Landmark–Pentagon Line | Landmark (S. Reynolds Street & Duke Street) | ↔ | Pentagon station | Interstate 395 | 21A originally operated to Federal Triangle until the 1980s to 1990s. 21A & 21B were originally the 27E & 27F until September 24, 1978. Once called the Landmark Express Line (along with 21B & 21C) until the early 2000s. From May 25, 2019, to September 8, 2019, temporary Weekday Midday service was added to the 21A due to the Blue/Yellow Line shutdown. Suspended as of March 16, 2020; later discontinued by September 5, 2021 being replaced by Route 21C on June 6, 2021. 21A is replaced by 21C on June 6, 2021. |
| 21B, 21C, 21D, 21F Landmark-Pentagon Line | 21B, 21C, 21D: Landmark (Stevenson Avenue & Whiting Street) 21F: Landmark (6295 Edsall Road Office Complex) | ↔ | Pentagon station | Interstate 395 | Routes 21C and 21F discontinued on June 28, 2009. Routes 21A, 21B, and 21D truncated to single Route 21A. Once called the Landmark Express Line. 21D was reincarnated on March 28, 2010 21C was reincarnated as the Landmark-Holmes Run Parkway Line on June 6, 2021. |
| 22B Pentagon–Army-Navy Drive–Shirley Park Line | Shirley Park (S. Meade Street & 28th Street S.) | ↔ | Pentagon station | Army-Navy Drive | Discontinued on June 28, 2009. Replaced by ART Route 87. Once was part of the Walker Chapel-Pentagon Line until 2003, served to Seven Corners Transit Center via Williamsburg Blvd. and East Falls Church Station. |
| 22B Barcroft–South Fairlington Line | Ballston–MU station | ↔ | Barcroft (Columbia Pike & Four Mile Run Dr) | George Mason Drive | Discontinued on June 24, 2018; replaced by 22A & 22C. |
| 22C, 22F Walker Chapel–Pentagon Line | Pentagon station | ↔ | Ballston–MU station | Army Navy Drive George Mason Drive N Glebe Road N Quincy Street (22F) Military Road (22F) | Discontinued on December 29, 2003. Replaced by 22A (South) and ART 53 (North). 22C only operated during off peak hours. 22C & 22F were reincarnated as the Barcroft-South Fairlington Line on June 21, 2015. |
| 22C Barcroft–South Fairlington Line | Ballston–MU station | ↔ | Pentagon station | George Mason Drive Interstate 395 | Suspended as of March 16, 2020; later discontinued by September 5, 2021. |
| 23B, 23E | | ↔ | | | 23B was reincarnated into the McLean–Crystal City Line in 2014. |
| 23C McLean–Crystal City Line | Langley CIA Headquarters | ↔ | Crystal City station | Old Dominion Drive Glebe Road | Discontinued on March 30, 2014. |
| 23M, 23N | McLean Hamlet | ↔ | Ballston–MU station | | |
| 23W Westpark Shuttle Line | Tysons-Westpark Transit Center | ↔ | Tysons Corner Center | Park Run Dr | 23W was a temporary route between Tyson-Westpark Transit Center & Tyson Corner Center that was introduced on March 30, 2014. Discontinued on July 26, 2014, after the Silver Line Opened. |
| 23X Great Falls Bus Line | Great Falls | ↔ | West Falls Church station | Old Dominion Drive | Discontinued in 1991. |
| 24A | | ↔ | | | |
| 24F | | ↔ | | | |
| 24M Ballston-Pentagon Line | Ballston–MU station | ↔ | Pentagon station | Wilson Boulevard Washington Boulevard Walter Reed Drive | Truncated and renamed as Route 24P trips on December 28, 2003. |
| 24P Ballston-Pentagon Line | Ballston–MU station | ↔ | Pentagon station | Wilson Boulevard Washington Boulevard Courthouse Road | Discontinued September 28, 2009. Replaced by ART Route 42. ART 42 launched September 30, 2006, with the takeover of Saturday Metrobus 24P service, leading to weekday service only. No Sunday Service |
| 24T McLean Hamlet-East Falls Church Line | Tysons-Westpark Transit Station | ↔ | East Falls Church station | Westmoreland Street | Discontinued July 26, 2014, after the Silver Line opened. |
| 25A, 25C, 25D, 25E Ballston-Bradlee-Pentagon Line | Pentagon station | ↔ | 25A, 25E Ballston–MU station 25C, 25D NVCC (Alexandria Campus) | Carlin Springs Road King Street Braddock Road Interstate 395 | Discontinued on June 21, 2015; replaced by 22A, 22B, 22C, 22F. |
| 25F, 25G, 25J, 25P, 25R Ballston-Bradlee-Pentagon Line | Pentagon station | ↔ | 25F, 25J, 25P, 25R Ballston–MU station 25G Fort Ward | Carlin Springs Road (25F, 25J, 25P, 25R) King Street (25F, 25G, 25J) Interstate 395 (25F, 25J, 25P, 25R) Army Navy Drive (25P, 25R) | Simplified and restructured as Route 25A, 25C, and 25D trips on December 30, 2007 |
| 25S | | ↔ | | | Discontinued on March 11, 1984. |
| 26A, 26E East Falls Church Line (GEORGE) | 26A West Falls Church station 26E Falls Church | ↔ | East Falls Church station | Broad Street | Transferred to Arlington Transit on July 6, 2009. 26A was reincarnated as the Annandale-East Falls Church Line on December 29, 2013. |
| 26G, 26H Burke Centre-Dunn Loring Line | | ↔ | | | Discontinued in 1996. |
| 26T | Springfield Mall | ↔ | Tysons Corner Shopping Center | | |
| 26W West Falls Church Line (GEORGE) | Falls Church | ↔ | West Falls Church station | Broad Street | Transferred to Arlington Transit on July 6, 2009. |
| 27B Hayfield-Franconia Line | | ↔ | | | |
| 27E, 27F Landmark Express Line | Landmark Mall | ↔ | 27E Federal Triangle 27F Pentagon station | | Renamed 21A & 21B on September 24, 1978. |
| 27H | Pentagon station | ↔ | | | |
| 27K | Springfield Town Center | ↔ | Pentagon station | | |
| 27P Hayfield-Franconia Line | | ↔ | | | Discontinued on June 26, 1983. |
| 27W | Pentagon station | ↔ | Beacon Hill | Southgate Drive South Kings Highway | |
| 27X | Pentagon station | ↔ | | | |
| 27Y, 27Z Saratoga Line | | ↔ | | | |
| 28B Alexandria-Tysons Corner Line | Tysons Corner | ↔ | King Street–Old Town station | Leesburg Pike | Discontinued on December 27, 2009. |
| 28C NVCC Alexandria-King Street Line | NVCC Alexandria Campus | ↔ | King Street–Old Town station | King Street | Discontinued in mid 2002. Replaced by DASH AT6 |
| 28T Tysons Corner-West Falls Church Line | Tysons-Westpark Transit Center | ↔ | West Falls Church station | Leesburg Pike | Discontinued on July 26, 2014, after the Silver Line opened. |
| 28G Skyline City Line | Skyline City (5113 S George Mason Drive) | ↔ | Pentagon station | Interstate 395 | 28G replaced the 7B between Fillmore Avenue and Pentagon station via Fillmore Avenue on March 29, 2015. Discontinued on June 6, 2021, replaced by 22F. |
| 28X Leesburg Pike Limited Line | East Falls Church station | ↔ | Mark Center | Leesburg Pike | Discontinued on June 25, 2017. |
| 29A, 29B Annandale Line | Pentagon station | ↔ | Annandale | Leesburg Pike | 29A discontinued on June 26, 1983. 29B was renamed 29G on June 26, 1983. |
| 29C Annandale Line | Pentagon station | ↔ | NVCC–Annandale | Little River Turnpike Shirley Highway | Transferred to Fairfax Connector and renamed to Route 834 on July 10, 2021. |
| 29E, 29H, 29X Annandale Line | Pentagon station | ↔ | 29H Annandale (Heritage Dr. & McWhorter Pl.) 29E, 29X NVCC-Annandale | Little River Turnpike Capital Beltway Interstate 395 | Discontinued on March 29, 2015 29E replaced by 29G, 29W 29H was replaced by 16L 29X was renamed 29W. |
| 29L | Pentagon station | ↔ | | | |
| 29M | | ↔ | | | |
| 29W Braeburn Drive–Pentagon Express Line | NVCC–Annandale | ↔ | Pentagon station | Little River Turnpike Capital Beltway Shirley Highway | 29W was formerly known as the 29X until March 29, 2015. Transferred to Fairfax Connector and renamed to Route 835 on July 10, 2021. |
| 29Z | Pentagon station | ↔ | | | |
| 38A, 38C Ballston-Farragut Square Line | Farragut Square | ↔ | Ballston–MU station | | |
| 38F Ballston-Farragut Square Line | Farragut Square | ↔ | Ballston–MU station | | Discontinued on January 2, 1981, and replaced by 38A. |
| S80, S91 (TAGS) Springfield Circulator | S80 (East) Hilton Springfield S80 (West) Metro Park Building S91 Springfield Mall | ↔ | Franconia–Springfield station | Loisdale Court (S80) Frontier Drive Franconia-Springfield Parkway (S80) | Transferred to Fairfax Connector and renamed routes Routes 350 and 351 on January 3, 2021. |
| S81 Springfield Circulator | Hilton Springfield Metro Park Building | ↔ | Franconia–Springfield station | Franconia–Springfield Parkway | Discontinued on September 26, 2004, and replaced by route S80. |
| S82 Metro Park Shuttle | Franconia–Springfield station | ↔ | Metro Park Building | Franconia–Springfield Parkway | Discontinued on September 26, 2004, and replaced by route S80. |
| V1 Pan Am Parking Lot/Vienna Shuttle Line | Vienna/Fairfax–GMU station | ↔ | Pan Am Shopping Center | | Discontinued on January 22, 2001. Reincarnated as the Benning Heights–M Street Line on June 21, 2015. |
| W99 West Ox Road Shuttle | Vienna/Fairfax–GMU station | ↔ | McConnell Public Safety and Transportation Operations Center | Interstate 66 | |
| Y31 Yorktown High School Line | Yorktown High School | ↔ | Washington-Lee High School (Washington Blvd. & N. Quincy Street) | George Mason Drive Washington Blvd. | Introduced on March 3, 2008. Renamed route 38B in mid to late 2010 One way route, PM service only No stops between terminal points Route renames to 38B when arrived at terminus |