# United Airlines fleet

As of March 2025, the United Airlines fleet consists of 1,011 mainline aircraft, the largest of any airline worldwide. United Airlines operates a mix of Airbus and Boeing narrow-body and all Boeing wide-body aircraft with more wide-bodies than any other North American passenger airline. The average age of United's fleet is 15.8 years.

## Strategy

The "United Next" strategy introduced during the COVID-19 pandemic is United Airlines' plan to modernize and expand its fleet while enhancing operational efficiency and the passenger experience. Unlike other major U.S. airlines, United retained its wide-body aircraft during the pandemic, allowing the airline to meet the surge in travel demand, especially internationally as the recovery materialized.
Since 2021, United has placed orders for over 500 narrow-body and 150 wide-body Boeing 787 Dreamliners as part of its strategy, which also includes retiring older mainline aircraft and at least 200 single-class regional jets.
The strategy emphasizes improving the passenger experience. United's "Signature Interior" concept features seatback entertainment systems with Bluetooth connectivity, power outlets at every seat, and larger overhead bins designed to accommodate a roller bag for each passenger. All new aircraft will include the updated interior, with retrofitting of existing mainline aircraft expected to be completed by 2025. United has also selected SpaceX's Starlink as its in-flight internet connectivity provider for mainline and two-class regional aircraft. This high-speed, low-latency satellite internet service will enable live streaming, cloud-based work applications, and gaming with complimentary access provided to all passengers.
United Airlines has also invested in and secured options for several aircraft under development. These include options to purchase 100 eVTOL (electric vertical takeoff and landing) aircraft from Archer Aviation and 200 eVTOL aircraft from Eve Air Mobility, a division of Embraer. Furthermore, the airline has committed to purchasing 100 ES-30 electric turboprop regional aircraft from Heart Aerospace, with options to purchase up to 50 more. United has also committed to purchasing 15 Boom Overture supersonic aircraft, with options to purchase up to 35 more.

## Fleet

As of March 2025, United Airlines operates the following mainline aircraft:
United Airlines fleet :
| Aircraft | In service | Orders | Passengers | Passengers | Passengers | Passengers | Passengers | Passengers | Passengers | Notes |
| Aircraft | In service | Orders | J | F | W | Y+ | Y | Total | Refs | Notes |
| Airbus A319-100 | 81 | — | — | 12 | — | 36 | 78 | 126 | | 20 to be retired in 2025. |
| Airbus A320-200 | 78 | — | — | 12 | — | 42 | 96 | 150 | | 20 to be retired in 2025. |
| Airbus A321neo | 31 | 99 | — | 20 | — | 57 | 123 | 200 | | Deliveries until 2032. |
| Airbus A321XLR | — | 50 | TBA | TBA | TBA | TBA | TBA | TBA | TBA | Deliveries start in January 2026. Replacing Boeing 757-200. |
| Airbus A350-900 | — | 45 | TBA | TBA | TBA | TBA | TBA | TBA | TBA | Deliveries pushed back by United until at least 2030. Replacing Boeing 777-200ER. |
| Boeing 737-700 | 40 | — | — | 12 | — | 36 | 78 | 126 | | |
| Boeing 737-800 | 141 | — | — | 16 | — | 48 | 102 | 166 | | |
| Boeing 737-800 | 141 | — | — | 16 | — | 42 | 108 | 166 | | |
| Boeing 737-800 | 141 | — | — | 16 | — | 54 | 96 | 166 | | |
| Boeing 737-900 | 12 | — | — | 20 | — | 45 | 114 | 179 | | |
| Boeing 737-900ER | 136 | — | — | 20 | — | 45 | 114 | 179 | | |
| Boeing 737-900ER | 136 | — | — | 20 | — | 42 | 117 | 179 | | |
| Boeing 737-900ER | 136 | — | — | 20 | — | 39 | 120 | 179 | | |
| Boeing 737 MAX 8 | 115 | 8 | — | 16 | — | 54 | 96 | 166 | | |
| Boeing 737 MAX 9 | 91 | 132 | — | 20 | — | 45 | 114 | 179 | | Largest operator. |
| Boeing 737 MAX 10 | — | 167 | — | 20 | — | 64 | 105 | 189 | | Launch customer. United has asked Boeing to halt production amid certification uncertainties; orders may be converted to MAX 8 or 9. |
| Boeing 737 MAX 10 | — | 167 | 22 | — | — | 45 | 96 | 163 | | Launch customer. United has asked Boeing to halt production amid certification uncertainties; orders may be converted to MAX 8 or 9. |
| Boeing 757-200 | 40 | — | 16 | — | — | 42 | 118 | 176 | | To be replaced by Airbus A321XLR. |
| Boeing 757-300 | 21 | — | — | 24 | — | 54 | 156 | 234 | | Largest operator. |
| Boeing 767-300ER | 13 | — | 30 | — | 24 | 32 | 113 | 199 | | To be replaced by Boeing 787 by 2030. |
| Boeing 767-300ER | 24 | — | 46 | — | 22 | 43 | 56 | 167 | | To be replaced by Boeing 787 by 2030. |
| Boeing 767-400ER | 16 | — | 34 | — | 24 | 48 | 125 | 231 | | To be replaced by Boeing 787 by 2030. |
| Boeing 777-200 | 19 | — | — | 28 | — | 102 | 234 | 364 | | Launch customer and largest operator. Domestic configuration. To be replaced by Boeing 787. |
| Boeing 777-200ER | 51 | — | 50 | — | 24 | 46 | 156 | 276 | | Largest operator. International configuration. To be replaced by Airbus A350-900. |
| Boeing 777-200ER | 4 | — | — | 32 | — | 124 | 206 | 362 | | Domestic configuration. To be replaced by Boeing 787. |
| Boeing 777-300ER | 22 | — | 60 | — | 24 | 62 | 204 | 350 | | |
| Boeing 787-8 | 12 | 145 | 28 | — | 21 | 36 | 158 | 243 | | Order with 50 options. Replacing Boeing 767, Boeing 777-200, and domestic Boeing 777-200ER. |
| Boeing 787-9 | 43 | 145 | 48 | — | 21 | 39 | 149 | 257 | | Order with 50 options. Replacing Boeing 767, Boeing 777-200, and domestic Boeing 777-200ER. |
| Boeing 787-10 | 21 | 145 | 44 | — | 21 | 54 | 199 | 318 | | Order with 50 options. Replacing Boeing 767, Boeing 777-200, and domestic Boeing 777-200ER. |
| Total | 1,011 | 646 | | | | | | | | |

### Gallery

* United Airlines current fleet
* Airbus A319
* Airbus A320
* Airbus A321neo
* Boeing 737-700
* Boeing 737-800
* Boeing 737-900
* Boeing 737-900ER
* Boeing 737 MAX 8
* Boeing 737 MAX 9
* Boeing 757-200
* Boeing 757-300
* Boeing 767-300ER
* Boeing 767-400ER
* Boeing 777-200
* Boeing 777-200ER
* Boeing 777-300ER
* Boeing 787-8
* Boeing 787-9
* Boeing 787-10

## Historical fleet

United Airlines former fleet :
| Aircraft | Total | Introduced | Retired | Replacement | Notes |
| Boeing 40A | Un­known | 1927 | 1937 | Un­known | Launch customer. Operated by Boeing Air Transport and Varney Air Lines. |
| Boeing 80A | Un­known | 1928 | 1934 | Un­known | Launch customer. Operated by Boeing Air Transport. |
| Boeing 247 | 59 | 1933 | 1942 | Un­known | Launch customer. All base models were built for United Airlines. |
| Boeing 377 Stratocruiser | 7 | 1950 | 1954 | Un­known | |
| Boeing 720 | 29 | 1960 | 1976 | Boeing 727 | Launch customer. |
| Boeing 727-100 | 126 | 1963 | 1993 | Boeing 737-500 | Three crashed as Flight 389, Flight 227, and Flight 266. |
| Boeing 727-200 | 104 | 1968 | 2001 | Airbus A320 family Boeing 737 NG Bombardier CRJ-700 | |
| Boeing 737-200 | 101 | 1968 | 2001 | Airbus A320 family Boeing 737 NG Bombardier CRJ-700 | Launch customer. Two crashed as Flight 553 and Flight 585. |
| Boeing 737-300 | 103 | 1986 | 2009 | Airbus A320 family Boeing 737 NG Bombardier CRJ-700 | |
| Boeing 737-500 | 73 | 1990 | 2009 | Airbus A320 family Boeing 737 NG Bombardier CRJ-700 | |
| Boeing 737-500 | 29 | 2010 | 2013 | Airbus A320 family Boeing 737 NG Bombardier CRJ-700 | Former Continental Airlines fleet. |
| Boeing 747-100 | 23 | 1970 | 1999 | Boeing 747-400 Boeing 777-200ER | One was damaged as Flight 811, but was later repaired and re-registered as N4724U. Another was damaged as Flight 826. |
| Boeing 747-200B | 10 | 1987 | 2000 | Boeing 747-400 Boeing 777-200ER | |
| Boeing 747SP | 11 | 1985 | 1995 | Boeing 747-400 Boeing 767-300ER Boeing 777-200 | Former Pan Am fleet. |
| Boeing 747-400 | 44 | 1989 | 2017 | Boeing 777-300ER Boeing 787 Dreamliner | Largest operator of Boeing 747-400 in United States. |
| Boeing 767-200 | 19 | 1982 | 2005 | Boeing 757-200 Boeing 767-300ER | Launch customer. Many were later upgraded to -ER standards. One hijacked and crashed into South Tower of the World Trade Center as Flight 175, as part of the September 11 attacks. |
| Boeing 767-200ER | 10 | 2010 | 2013 | Boeing 757-200 Boeing 767-300ER | Former Continental Airlines fleet. |
| Convair 340 | 52 | 1952 | 1968 | Un­known | |
| Douglas DC-3 | 118 | 1936 | 1956 | Convair 340 | |
| Douglas DC-4 | 36 | 1946 | 1957 | Un­known | |
| Douglas DC-4E | 1 | 1939 | 1939 | None | Used in trial service only. |
| Douglas DC-6 | 90 | 1946 | 1969 | Un­known | |
| Douglas DC-6B | 90 | 1946 | 1969 | Un­known | |
| Douglas DC-7 | 57 | 1954 | 1966 | Un­known | |
| Douglas DC-8-10 | 2 | 1959 | 1961 | None | Two crashed as Flight 826 and Flight 859. |
| Douglas DC-8-20 | 30 | 1959 | 1982 | Boeing 727-200 | |
| McDonnell Douglas DC-8-30 | 11 | 1967 | 1974 | Boeing 727-200 | |
| McDonnell Douglas DC-8-50 | 18 | 1959 | 1983 | Boeing 727-200 | |
| McDonnell Douglas DC-8-50 | 15 | 1964 | 1987 | None | Cargo fleet. Two crashed as Flight 2860 and Flight 2885. |
| McDonnell Douglas DC-8-60 | 41 | 1967 | 1991 | Boeing 757-200 | One crashed as Flight 173. |
| McDonnell Douglas DC-8-70 | 41 | 1967 | 1991 | Boeing 757-200 | |
| Ford Trimotor | Un­known | 1931 | Un­known | Un­known | Operated on a transcontinental route between New York City and San Francisco. |
| Laird Swallow J-5 | Un­known | Un­known | Un­known | Un­known | Single seat biplane used to carry US Air Mail (CAM 5) by predecessor Varney Air Lines. |
| Lockheed L-1011 TriStar | 6 | 1986 | 1989 | Boeing 747-100 McDonnell Douglas DC-10-30 | Former Pan Am fleet. All aircraft were sold to Delta Air Lines. |
| McDonnell Douglas DC-10-10 | 48 | 1971 | 2001 | Boeing 757-200 Boeing 767-300ER Boeing 777-200 | Launch customer. One crashed as Flight 232. |
| McDonnell Douglas DC-10-30 | 7 | 1983 | 2001 | Boeing 757-200 Boeing 767-300ER Boeing 777-200 | |
| McDonnell Douglas DC-10-30 | 4 | 1997 | 2001 | None | Converted into freighters for the short-lived "United Airlines Worldwide Cargo" service. |
| Sud Aviation Caravelle | 20 | 1961 | 1970 | Boeing 727 Boeing 737-200 | Only U.S. operator in scheduled passenger service. Used to operate "Executive" service between Chicago and Newark restricted to men only passengers. Also operated on other United domestic services. |
| Vickers Viscount | 48 | 1961 | 1969 | Boeing 727 Boeing 737-200 | Former Capital Airlines aircraft. Only mainline turboprop aircraft type ever operated by United Airlines. |