# List of busiest passenger flight routes

These are lists of the busiest flight routes by the number of passengers flown, by seat capacity and by aircraft movements.

## Global statistics
### By available seats

The following are the lists of the world's busiest flight routes based on the number of seats available in the flights scheduled in both directions. Note that these statistics do not consider the number of passengers actually carried (load factor).

#### Top 10 most capacitated flight routes

| Rank | Departing | Arriving | Distance (km) | 2024 | 2023 | 2022 | 2021 | 2019 | 2015 (mln.) | Type |
| 1 | Jeju | Seoul–Gimpo | 449 | 14,183,719 | 13,728,786 | 16,068,983 | 17,082,700 | 17,426,873 | ~7 | Domestic |
| 2 | Sapporo–Chitose | Tokyo–Haneda | 835 | 11,931,572 | 11,936,302 | 10,216,765 | 8,171,324 | 12,498,468 | ~6.3 | Domestic |
| 3 | Fukuoka | Tokyo–Haneda | 889 | 11,335,551 | 11,264,229 | 9,894,296 | 7,562,387 | 11,400,018 | ~5.8 | Domestic |
| 4 | Hanoi | Ho Chi Minh City | 1171 | 10,631,435 | 10,883,555 | 8,562,009 | 6,806,131 | 10,253,530 | ~3.4 | Domestic |
| 5 | Sydney | Melbourne | 705 | 9,217,377 | 9,342,312 | 6,996,156 | | 9,958,500 | ~5.1 | Domestic |
| 6 | Jeddah | Riyadh | 857 | 8,700,415 | 7,902,142 | 7,371,119 | 6,677,097 | 8,018,205 | | Domestic |
| 7 | Tokyo–Haneda | Naha | 1573 | 8,033,641 | 7,982,218 | 6,910,809 | 5,602,408 | 7,704,098 | ~3.9 | Domestic |
| 8 | Mumbai | Delhi | 1150 | 7,963,686 | 7,276,430 | 6,941,947 | 4,891,881 | 8,230,822 | ~3.9 | Domestic |
| 9 | Beijing–Capital | Shanghai–Hongqiao | 1081 | 7,714,758 | 8,355,225 | 6,321,194 | 7,910,793 | 8,117,461 | ~3.9 | Domestic |
| 10 | Guangzhou | Shanghai–Hongqiao | 1176 | 7,010,321 | | | 6,350,115 | | | Domestic |
| | Jakarta | Denpasar | 991 | | 7,190,961 | 6,741,923 | 3,939,509 | | | Domestic |
| | Shanghai–Hongqiao | Shenzhen | 1217 | | | | 6,555,365 | | | Domestic |
| | Seoul–Gimpo | Busan | 328 | | | | 6,297,916 | | | Domestic |
| | Cancún | Mexico City | 1294 | | | | 5,604,043 | | | Domestic |
| | Jakarta | Makassar | 1439 | | | | 4,895,779 | | | Domestic |
| | Chengdu | Beijing–Capital | 1559 | | | | 4,734,834 | | | Domestic |
| | Tokyo–Haneda | Osaka–Itami | 407 | | | | 4,728,321 | | ~3.6 | Domestic |
| | Jeju | Busan | 293 | | | | 4,176,876 | | | Domestic |
| | Jakarta | Medan | 1401 | | | | 4,060,426 | | | Domestic |
| | Cape Town | Johannesburg | 1292 | | | | 4,001,680 | | ~2.9 | Domestic |
| | Beijing–Capital | Shenzhen | 1979 | | | | 3,978,144 | | | Domestic |
| | Hong Kong | Taipei–Taoyuan | 802 | | | | | 7,965,538 | ~4.3 | International |
| | Rio de Janeiro-Santos Dumont | São Paulo–Congonhas | 378 | | | | | | ~3.6 | Domestic |
| | Jakarta | Surabaya | 700 | | | | | | ~3.5 | Domestic |
| | Brisbane | Sydney | 756 | | | | | | ~2.9 | Domestic |
| | Jakarta | Singapore | 896 | | | | | | ~2.8 | International |

#### Most capacitated international flight routes (airport pairs)

| Rank | Departing | Arriving | 2024 | 2023 | 2022 | 2019 |
| 1 | Hong Kong | Taipei-Taoyuan | 6,781,577 | 4,568,280 | | 7,965,538 (#9) |
| 2 | Cairo | Jeddah | 5,469,274 | 4,795,712 | 3,234,683 | |
| 3 | Seoul-Incheon | Tokyo-Narita | 5,410,456 | 4,155,418 | | |
| 4 | Kuala Lumpur | Singapore | 5,382,163 | 4,891,952 | 2,443,176 | 5,560,894 |
| 5 | Seoul-Incheon | Osaka-Kansai | 4,982,769 | 4,218,484 | | |
| 6 | Dubai | Riyadh | 4,306,599 | 3,990,076 | 3,191,090 | |
| 7 | Bangkok-Suvarnabhumi | Hong Kong | 4,201,802 | | | 4,826,872 |
| 8 | Jakarta | Singapore | 4,069,071 | 3,910,502 | | 5,480,000 |
| 9 | Bangkok-Suvarnabhumi | Singapore | 4,033,344 | 3,478,474 | | 3,832,494 |
| 10 | London–Heathrow | New York–JFK | 4,011,235 | 3,878,590 | 2,848,044 | 3,833,701 |
| | Bangkok-Suvarnabhumi | Seoul-Incheon | | 3,362,968 | | |
| | Dubai | London–Heathrow | | | 2,697,593 | |
| | Dubai | Jeddah | | | 2,425,930 | |
| | Orlando | San Juan | | | 2,099,234 | |
| | Mumbai | Dubai | | | 1,977,537 | |
| | Cairo | Riyadh | | | 1,913,991 | |
| | Delhi | Dubai | | | 1,898,749 | |
| | Hong Kong | Shanghai–Pudong | | | | 4,463,658 |
| | Hong Kong | Seoul-Incheon | | | | 3,942,875 |
| | Hong Kong | Manila | | | | 3,852,991 |
| | Jakarta | Kuala Lumpur | | | | 3,798,559 |

#### Most capacitated routes by region

| Departing | Arriving | 2024 | 2023 | 2022 | 2021 | 2020 | 2019 |
| Asia ||||||||
| Jeju | Seoul-Gimpo | 14,183,719 | 13,728,786 | 16,068,983 | 17,082,700 | | 17,426,873 |
| Oceania ||||||||
| Sydney | Melbourne | 9,217,377 | 9,342,312 | 6,989,569 | | | 9,958,500 |
| Middle East ||||||||
| Jeddah | Riyadh | 8,700,415 | 7,902,142 | 7,371,119 | 6,677,097 | | 8,018,205 |
| South America ||||||||
| Bogotá | Medellín-Rionegro | 6,664,812 | 5,474,206 | | | | 5,706,480 |
| Africa ||||||||
| Cape Town | Johannesburg-ORT | 5,084,762 | 5,224,805 | | 4,001,680 | | 6,072,196 |
| North America ||||||||
| Cancún | Mexico City | 3,982,607 | 5,010,982 | 4,803,489 | 5,604,043 | 2,874,267 | 5,505,352 |
| Europe ||||||||
| Barcelona | Palma de Mallorca | 2,869,842 | 2,859,582 | 2,033,205 | | 820,742 | |
| Barcelona | Madrid | | | | | | 3,650,780 |

### By number of passengers (2017–2018)
#### Top 100 busiest flight routes

| Airport 1 | Airport 2 | Distance (km) | 2018 | 2017 | Type |
| Jeju | Seoul–Gimpo | 449 | 14,107,414 | 13,460,306 | Domestic |
| Tokyo–Haneda | Sapporo | 835 | 9,698,639 | 8,726,502 | Domestic |
| Sydney | Melbourne | 705 | 9,245,392 | 9,090,941 | Domestic |
| Tokyo–Haneda | Fukuoka | 889 | 8,762,547 | 7,864,000 | Domestic |
| Mumbai | Delhi | 1150 | 7,392,155 | 7,129,943 | Domestic |
| Hanoi | Ho Chi Minh City | 1171 | 6,867,114 | 6,769,823 | Domestic |
| Beijing–Capital | Shanghai–Hongqiao | 1081 | 6,518,997 | 6,833,684 | Domestic |
| Hong Kong | Taipei–Taoyuan | 802 | 6,476,268 | 6,719,030 | International |
| Tokyo–Haneda | Naha | 1573 | 5,829,712 | 5,269,481 | Domestic |
| Jakarta | Surabaya | 700 | 5,649,046 | 5,271,304 | Domestic |
| Jakarta | Denpasar | 991 | 5,535,108 | 4,952,852 | Domestic |
| Jeddah | Riyadh | 857 | 5,526,110 | 5,091,629 | Domestic |
| Tokyo–Haneda | Osaka–Itami | 407 | 5,131,757 | 5,106,584 | Domestic |
| Chengdu | Beijing–Capital | 1559 | 5,092,442 | 4,951,620 | Domestic |
| Guangzhou | Beijing–Capital | 1898 | 5,076,229 | 4,864,177 | Domestic |
| Cancún | Mexico City | 1294 | 4,885,602 | 4,656,308 | Domestic |
| Beijing–Capital | Shenzhen | 1979 | 4,853,038 | 4,496,351 | Domestic |
| Brisbane | Sydney | 756 | 4,815,609 | 4,742,771 | Domestic |
| Jakarta | Singapore | 896 | 4,812,342 | 4,810,602 | International |
| Guangzhou | Shanghai–Hongqiao | 1176 | 4,724,514 | 4,469,990 | Domestic |
| Shanghai–Hongqiao | Shenzhen | 1217 | 4,679,294 | 4,445,654 | Domestic |
| Bangalore | Delhi | 1717 | 4,542,638 | 4,183,799 | Domestic |
| Jakarta | Makassar | 1439 | 4,530,428 | 4,559,737 | Domestic |
| Jakarta | Medan | 1401 | 4,512,830 | 3,886,963 | Domestic |
| Cape Town | Johannesburg | 1292 | 4,508,214 | 4,698,849 | Domestic |
| Kuala Lumpur | Singapore | 296 | 4,290,463 | 4,108,824 | International |
| São Paulo–Congonhas | Rio de Janeiro-Santos Dumont | 378 | 4,234,631 | 4,096,193 | Domestic |
| Hong Kong | Shanghai–Pudong | 1247 | 4,053,909 | 4,162,347 | International |
| New York–JFK | Los Angeles | 3982 | 3,971,922 | 3,531,613 | Domestic |
| Bogotá | Medellín-Rionegro | 239 | 3,930,332 | 3,323,127 | Domestic |
| Bangalore | Mumbai | 834 | 3,814,494 | 3,445,315 | Domestic |
| Los Angeles | San Francisco | 541 | 3,635,655 | 3,507,702 | Domestic |
| Bangkok–Suvarnabhumi | Phuket | 685 | 3,612,373 | 3,396,189 | Domestic |
| Brisbane | Melbourne | 1379 | 3,565,266 | 3,545,156 | Domestic |
| Cebu | Manila | 570 | 3,519,525 | 3,233,871 | Domestic |
| Hong Kong | Bangkok–Suvarnabhumi | 1694 | 3,490,988 | 3,438,628 | International |
| Mexico City | Monterrey | 729 | 3,474,971 | 3,202,091 | Domestic |
| Kolkata | Delhi | 1333 | 3,431,999 | 3,153,548 | Domestic |
| Da Nang | Ho Chi Minh City | 617 | 3,256,718 | 3,210,368 | Domestic |
| Chiang Mai | Bangkok–Don Mueang | 569 | 3,212,124 | 3,155,528 | Domestic |
| Seoul–Incheon | Osaka–Kansai | 872 | 3,210,813 | 2,907,199 | International |
| Cusco | Lima | 583 | 3,201,414 | 3,000,513 | Domestic |
| New York–LaGuardia | Chicago–O'Hare | 1177 | 3,198,700 | 3,118,651 | Domestic |
| Jakarta | Kuala Lumpur | 1142 | 3,170,193 | 2,812,479 | International |
| Mexico City | Guadalajara | 466 | 3,170,177 | 2,996,806 | Domestic |
| Jeju | Busan | 294 | 3,106,224 | 2,793,383 | Domestic |
| İzmir | Istanbul–Atatürk | 348 | 3,084,250 | 3,496,438 | Domestic |
| Hong Kong | Seoul–Incheon | 2080 | 3,081,942 | 3,198,132 | International |
| Guangzhou | Chengdu | 1232 | 3,044,038 | 2,944,642 | Domestic |
| Hong Kong | Manila | 1145 | 3,008,842 | 2,907,228 | International |
| Hong Kong | Beijing–Capital | 2011 | 3,000,786 | 2,962,707 | International |
| Delhi | Hyderabad | 1273 | 2,980,730 | 2,577,743 | Domestic |
| Las Vegas | Los Angeles | 388 | 2,961,553 | 2,823,411 | Domestic |
| Durban | Johannesburg | 498 | 2,953,851 | 2,847,156 | Domestic |
| Hong Kong | Singapore | 2587 | 2,923,578 | 3,147,384 | International |
| Atlanta | Orlando | 645 | 2,918,980 | 2,836,474 | Domestic |
| Vancouver | Toronto–Pearson | 3358 | 2,912,026 | 2,950,823 | Domestic |
| Chengdu | Shenzhen | 1327 | 2,873,291 | 2,509,192 | Domestic |
| Hangzhou | Beijing–Capital | 1157 | 2,856,019 | 2,883,519 | Domestic |
| Tokyo–Narita | Taipei–Taoyuan | 2193 | 2,848,925 | 2,592,049 | International |
| New York–-JFK | London–Heathrow | 5562 | 2,864,321 | 2,972,817 | International |
| Bogotá | Cartagena | 673 | 2,825,672 | 2,573,763 | Domestic |
| Da Nang | Hanoi | 626 | 2,810,618 | 2,534,425 | Domestic |
| Los Angeles | Chicago–O'Hare | 2811 | 2,810,368 | 2,927,492 | Domestic |
| İzmir | Istanbul–Sabiha Gökçen | 364 | 2,799,413 | 2,608,469 | Domestic |
| Kota Kinabalu | Kuala Lumpur | 1622 | 2,790,835 | 2,609,151 | Domestic |
| Delhi | Pune | 1158 | 2,787,960 | 2,601,764 | Domestic |
| Delhi | Chennai | 1774 | 2,777,822 | 2,456,556 | Domestic |
| Tokyo–Haneda | Kagoshima | 948 | 2,768,091 | 2,553,366 | Domestic |
| Jakarta | Palembang | 413 | 2,746,929 | | Domestic |
| Bogotá | Cali | 287 | 2,722,122 | 2,726,627 | Domestic |
| Gold Coast | Sydney | 682 | 2,722,095 | 2,739,057 | Domestic |
| Bangkok–Suvarnabhumi | Chiang Mai | 597 | 2,694,612 | 2,395,389 | Domestic |
| Dubai | London–Heathrow | 5529 | 2,665,441 | 3,210,121 | International |
| Jakarta | Semarang | 422 | 2,650,823 | | Domestic |
| Beijing–Capital | Xi'an | 951 | 2,639,625 | 2,540,100 | Domestic |
| Davao | Manila | 975 | 2,630,909 | 2,606,945 | Domestic |
| Bangkok–Suvarnabhumi | Singapore | 1431 | 2,597,199 | 2,596,349 | International |
| Guangzhou | Hangzhou | 1037 | 2,594,232 | 2,653,701 | Domestic |
| Atlanta | Fort Lauderdale | 943 | 2,572,815 | 2,360,786 | Domestic |
| Beijing–Capital | Chongqing | 1483 | 2,554,282 | 2,485,613 | Domestic |
| Antalya | Istanbul–Sabiha Gökçen | 462 | 2,545,643 | | Domestic |
| Jakarta | Yogyakarta | 455 | 2,517,527 | | Domestic |
| Bangkok–Don Mueang | Hat Yai | 794 | 2,513,414 | 2,518,553 | Domestic |
| Jinghong | Kunming–Changshui | 386 | 2,502,690 | 2,627,969 | Domestic |
| Adelaide | Melbourne | 641 | 2,493,589 | 2,454,637 | Domestic |
| Mumbai | Goa | 423 | 2,492,268 | 2,537,413 | Domestic |
| Kuala Lumpur | Penang | 324 | 2,489,660 | 2,379,127 | Domestic |
| Los Angeles | Seattle–Tacoma | 1537 | 2,485,576 | 2,768,035 | Domestic |
| Montréal | Toronto–Pearson | 503 | 2,485,533 | 2,640,849 | Domestic |
| Auckland | Wellington | 480 | 2,481,522 | 2,617,041 | Domestic |
| Tokyo–Narita | Seoul–Incheon | 1257 | 2,466,953 | | International |
| Bangalore | Hyderabad | 454 | 2,466,522 | | Domestic |
| Jakarta | Pontianak | 731 | 2,463,262 | | Domestic |
| Madrid | Barcelona | 483 | 2,448,664 | | Domestic |
| Chongqing | Shenzhen | 1062 | 2,428,313 | | Domestic |
| Mumbai | Dubai | 1925 | 2,394,060 | 2,383,145 | International |
| Auckland | Christchurch | 751 | 2,385,766 | 2,535,669 | Domestic |
| Atlanta | New York–LaGuardia | 1238 | 2,378,490 | 2,387,693 | Domestic |
| Ahmedabad | Delhi | 752 | 2,363,818 | | Domestic |
| Bangkok–Don Mueang | Phuket | 698 | | 3,325,261 | Domestic |
| Osaka–Kansai | Taipei–Taoyuan | 1714 | | 2,530,208 | International |
| Denver | Los Angeles | 1392 | | 2,519,541 | Domestic |
| Guangzhou | Chongqing | 975 | | 2,468,368 | Domestic |
| Surabaya | Makassar | 794 | | 2,434,487 | Domestic |
| Dubai | Kuwait City | 857 | | 2,394,192 | International |
| Ankara | Istanbul–Sabiha Gökçen | 322 | | 2,378,692 | Domestic |
| Mumbai | Chennai | 1045 | | 2,377,806 | Domestic |
| Jakarta | Padang | 914 | | 2,350,206 | Domestic |
| Kuching | Kuala Lumpur | 971 | | 2,341,291 | Domestic |

#### Busiest international flight routes by origin-and-destination passenger volume (airport pairs)

| Airports | Airports | 2018 | 2017 | 2015 (mln.) |
| Hong Kong | Taipei-Taoyuan | 6,476,268 (#8) | 6,719,030 (#8) | 5.1 |
| Jakarta | Singapore | 4,812,342 | 4,810,602 | 3.4 |
| Kuala Lumpur | Singapore | 4,490,463 | 4,108,824 | 2.7 |
| Bangkok-Suvarnabhumi | Hong Kong | 3,490,988 | 3,438,628 | 3 |
| Seoul-Incheon | Osaka-Kansai | 3,210,813 | 2,907,199 | |
| Jakarta | Kuala Lumpur | 3,170,193 | 2,812,479 | |
| Hong Kong | Seoul-Incheon | 3,081,942 | 3,198,132 | |
| Hong Kong | Manila | 3,008,842 | 2,907,228 | |
| Hong Kong | Singapore | 2,923,578 | 3,147,384 | 2.7 |
| Tokyo-Narita | Taipei-Taoyuan | 2,848,925 | | |
| New York–JFK | London–Heathrow | | 2,972,817 | |

#### Busiest routes by region

| City/airport 1 | City/airport 2 | 2018 | 2017 |
| Asia ||||
| Jeju | Seoul-Gimpo | 14,107,414 | 13,460,306 |
| Oceania ||||
| Sydney | Melbourne | 9,245,392 | 9,090,941 |
| Middle East ||||
| Jeddah | Riyadh | 5,526,110 | 5,091,629 |
| Latin America ||||
| Cancun | Mexico City | 4,885,602 | 4,656,308 |
| Africa ||||
| Cape Town | Johannesburg-ORT | 4,508,214 | 4,698,849 |
| USA and Canada ||||
| New York–JFK | Los Angeles | 3,971,922 | 3,531,613 |
| Europe ||||
| Madrid | Barcelona | 2,466,968 | 2,341,255 |

### By aircraft movements

The following are the lists of the world's busiest flight routes based on the number of scheduled flights in both directions. Note that these statistics do not consider the number of passengers carried.

#### Domestic

Domestic :
| Rank | Airport pair | Airport pair | # of flights (Jan – Nov 2021) | Airlines (2021) |
| 1 | Jeju (CJU) | Seoul (GMP) | 71,388 | Air Busan, Air Seoul, Hi Air, Jeju Air, Jin Air, Korean Air, T'way Air |
| 2 | Seoul (GMP) | Busan (PUS) | 28,809 | Air Busan, Air Seoul, Jeju Air, Jin Air, Korean Air, T'way Air |
| 3 | Jeddah (JED) | Riyadh (RUH) | 24,879 | Flyadeal, Flynas, Saudia |
| 4 | Fukuoka (FUK) | Tokyo (HND) | 23,079 | All Nippon Airways, Japan Airlines, Skymark Airlines, StarFlyer |
| 5 | Sapporo (CTS) | Tokyo (HND) | 21,851 | Air Do, All Nippon Airways, Japan Airlines, Skymark Airlines |
| 6 | Mexico City (MEX) | Cancún (CUN) | 21,352 | Aeroméxico, Aeroméxico Connect, Magnicharters, VivaAerobús, Volaris |
| 7 | Shanghai (SHA) | Shenzhen (SZX) | 19,945 | China Eastern Airlines, China Southern Airlines, Juneyao Air, Shanghai Airlines, Shenzhen Airlines, Spring Airlines, XiamenAir |
| 8 | Beijing (PEK) | Shanghai (SHA) | 18,624 | Air China, China Eastern Airlines, Hainan Airlines, OTT Airlines, Shanghai Airlines |
| 9 | Hanoi (HAN) | Ho Chi Minh City (SGN) | 18,342 | Bamboo Airways, Pacific Airlines, VietJet Air, Vietnam Airlines, Vietravel Airlines |
| 10 | Bogotá (BOG) | Rionegro (MDE) | 18,086 | Avianca, LATAM, Ultra Air, Viva Air, Wingo |
| 11 | Guangzhou (CAN) | Shanghai (SHA) | 18,066 | Air China, China Eastern Airlines, China Southern Airlines, Hainan Airlines, Juneyao Airlines, Shanghai Airlines, Shenzhen Airlines, Spring Airlines |
| 12 | Jeju (CJU) | Busan (PUS) | 17,630 | Air Busan, Jeju Air, Jin Air, Korean Air, T'way Air |
| 13 | Mumbai (BOM) | Delhi (DEL) | 17,069 | AirAsia India, Air India, Go First, IndiGo, SpiceJet, Vistara |
| 14 | Los Angeles (LAX) | San Francisco (SFO) | 15,828 | Alaska Airlines, American Airlines, American Eagle, Delta Air Lines, Delta Connection, JetBlue, Southwest Airlines, United Airlines |
| 15 | Okinawa (OKA) | Tokyo (HND) | 15,687 | All Nippon Airways, Japan Airlines, Skymark Airlines, Solaseed Air |
| 16 | Cape Town (CPT) | Johannesburg (JNB) | 15,208 | Airlink, CemAir, FlySafair, LIFT Airline, South African Airways |
| 17 | Chengdu (CTU) | Beijing (PEK) | 15,180 | Air China, Hainan Airlines, Shenzhen Airlines |
| 18 | Los Angeles (LAX) | Las Vegas (LAS) | 15,026 | Alaska Airlines, Allegiant Air, American Airlines, Delta Air Lines, JetBlue, JSX, Southwest Airlines, Spirit Airlines, Sun Country Airlines, United Express, United Airlines |
| 19 | Chengdu (CTU) | Guangzhou (CAN) | 14,746 | Beijing Capital Airlines, Chengdu Airlines, China Eastern Airlines, China Southern Airlines, Hainan Airlines, Shenzhen Airlines, Sichuan Airlines |
| 20 | Bogotá (BOG) | Cali (CLO) | 14,604 | Avianca, LATAM, Ultra Air, Viva Air, Wingo |

#### International

The only international route to make the Top 50 busiest routes in 2021 was between Saint Barthélemy (SBH) and Sint Maarten (SXM).
International :
| Rank | Airport pair | Airport pair | # of flights (March 2018 - Feb 2019) | Airlines (2018) |
| 1 | Kuala Lumpur (KUL) | Singapore (SIN) | 30,187 | Malaysia Airlines, Singapore Airlines, AirAsia, Jetstar Asia, Malindo Air, Scoot, Firefly, Saudia |
| 2 | Hong Kong (HKG) | Taipei (TPE) | 28,447 | Cathay Pacific, China Airlines, EVA Airlines, Hong Kong Airlines, Thai Airways, Starlux Airlines, Greater Bay Airlines, United Parcel Service |
| 3 | Jakarta (CGK) | Singapore (SIN) | 27,046 | Singapore Airlines, Garuda Indonesia, Lion Air, Jetstar Asia, Indonesia AirAsia, Scoot, Batik Air |
| 4 | Hong Kong (HKG) | Shanghai (PVG) | 20,678 | China Eastern Airlines, Hong Kong Airlines, Cathay Pacific, Spring Airlines, Juneyao Airlines |
| 5 | Jakarta (CGK) | Kuala Lumpur (KUL) | 19,741 | Malaysia Airlines, AirAsia, Lion Air, Indonesia AirAsia, Malindo Airways, Garuda Indonesia, KLM, Batik Air, Citilink, TransNusa |
| 6 | Osaka (KIX) | Seoul (ICN) | 19,711 | Asiana Airlines, Korean Air, Jin Air, Jeju Air, Peach Aviation, Eastar Jet, T'way Air, Air Seoul, Air Busan |
| 7 | Toronto (YYZ) | New York (LGA) | 17,038 | Air Canada, United Airlines, Republic Airways, AirSprint, Jazz Aviation, Endeavor Air, NetJets, Delta Air Lines |
| 8 | Hong Kong (HKG) | Seoul (ICN) | 15,770 | Cathay Pacific, Korean Air, HK Express, Asiana Airlines, Jeju Air, Eastar Jet, T'way Air, Jin Air, Thai Airways, Greater Bay Airlines |
| 9 | Bangkok (BKK) | Singapore (SIN) | 14,698 | Singapore Airlines, Thai Airways, Scoot, Jetstar Asia, Cathay Pacific, K-Mile Air, Nippon Cargo Airlines, Asiana Airlines |
| 10 | Dubai (DXB) | Kuwait (KWI) | 14,581 | Emirates, Flydubai, Kuwait Airways, Jazeera Airways |
| 11 | Hong Kong (HKG) | Bangkok (BKK) | 14,556 | Cathay Pacific, Thai Airways, Hong Kong Airlines, Emirates, HK Express, Greater Bay Airlines, Ethiopian Airlines, Air Hong Kong, Egypt Air, K-Mile Air, Hong Kong Air Cargo, Qatar Airways Cargo, Air ACT |
| 12 | Hong Kong (HKG) | Beijing (PEK) | 14,537 | Air China, Hong Kong Airlines, Cathay Pacific, Air Hong Kong |
| 13 | London (LHR) | New York–JFK | 14,195 | British Airways, Virgin Atlantic, American Airlines, Delta Airlines, JetBlue Airways |
| 14 | Tokyo (NRT) | Taipei (TPE) | 13,902 | China Airlines, EVA Air, Peach Aviation, Japan Airlines, Scoot, Cathay Pacific, Jetstar Japan, Thai Lion Air, Tiger Air, Starlux, Nippon Cargo Airlines, FedEx Express |
| 15 | London (LHR) | Dublin (DUB) | 13,855 | Aer Lingus, British Airways |
| 16 | Osaka (KIX) | Shanghai (PVG) | 13,708 | China Eastern Airlines, China Southern Airlines, Air China, Juneyao Airlines, All Nippon Airways, Spring Airlines, China Cargo Airlines, Peach Aviation, Shanghai Airlines |
| 17 | Hong Kong (HKG) | Singapore (SIN) | 13,654 | Cathay Pacific Airways, Singapore Airlines, Scoot, Air Hong Kong, Hong Kong Air Cargo, UPS Airlines |
| 18 | Toronto (YYZ) | Chicago (ORD) | 13,503 | Air Canada, United Airlines, Envoy Air, EVA Air, SkyWest, AeroLogic, Republic Airways |
| 19 | Tokyo (NRT) | Seoul (ICN) | 13,420 | Asiana Airlines, Korean Air, Jeju Air, Eastar Jet, Jin Air, T'way Air, Air Japan, Zip Air, Air Premia, Air Seoul, Air Busan, Ethiopian Airlines, Japan Airline, All Nippon Airways, Kalitta Air, Aero K, Lufthansa Cargo |
| 20 | Osaka (KIX) | Taipei (TPE) | 13,325 | All Nippon Airways, China Airlines, EVA Air, Japan Airlines, Starlux Airlines, Tigerair Taiwan |

## Regional statistics
### Europe (2011–2022)

Busiest flight routes inside the EU, UK, Switzerland, Iceland and Norway. Figures are only available for EU countries, Switzerland, Iceland and Norway.
Data retrieved from Eurostat, 2020–2022 :
| Rank | Airport 1 | Airport 2 | 2020 | 2021 | 2022 |
| 1 | Barcelona/El Prat | Palma de Mallorca | 820,742 | 1,220,540 | 2,033,205 |
| 2 | Madrid/Barajas | Palma de Mallorca | 793,794 | 1,140,759 | 1,877,938 |
| 3 | Oslo/Gardermoen | Trondheim | 918,615 | 1,005,775 | 1,839,520 |
| 4 | Oslo/Gardermoen | Bergen | 869,489 | 991,026 | 1,737,598 |
| 5 | Madrid/Barajas | Barcelona/El Prat | 754,090 | 1,013,754 | 1,715,592 |
| 6 | Rome/Fiumicino | Catania | 648,964 | 1,060,641 | 1,541,879 |
| 7 | Madrid/Barajas | Lisbon | 415,465 | 573,206 | 1,538,344 |
| 8 | Madrid/Barajas | Gran Canaria | 638,092 | 937,084 | 1,430,978 |
| 9 | Oslo/Gardermoen | Stavanger | 720,102 | 785,512 | 1,392,824 |
| 10 | Madrid/Barajas | Tenerife Norte | 617,739 | 875,428 | 1,291,140 |
| 11 | Athens/El. Venizelos | Thessaloniki/Macedonia | 551,914 | 826,643 | 1.204,852 |
| | Rome/Fiumicino | Palermo/Falcone Borsellino | 549,692 | 741,588 | 1,176,181 |
| | Oslo/Gardermoen | Tromsø | 606,927 | 722,576 | |
| | Madrid/Barajas | Paris/Orly | 460,765 | 707,707 | 1,371,546 |
| | Paris/CDG | Nice | 744,588 | 699,762 | |
| | Athens/El. Venizelos | Heraklion | 504,120 | 650,400 | |
| | Athens/El. Venizelos | Larnaca | 427,252 | 622,148 | |
| | Madrid/Barajas | Ibiza | 368,182 | 610,232 | |
| | Amsterdam | Barcelona/El Prat | 377,835 | 608,458 | |
| | Berlin/Brandenburg | Frankfurt/Main | 382,232 | 574,588 | |
| | Amsterdam | Paris/CDG | 495,151 | 574,320 | |
| | Paris/CDG | Amsterdam/Schiphol | 492,723 | 570,825 | |
| | Athens/El. Venizelos | Santorini | 294,903 | 569,193 | |
| | Aalborg | Copenhagen | 353,196 | 557,869 | |
| | Berlin/Brandenburg | Palma de Mallorca | 728,801 | 508,428 |
| | Paris/CDG | Toulouse | 521,138 | 497,045 | |
| | Larnaca | Athens/El. Venizelos | 392,679 | 485,950 | |
| | Oslo/Gardermoen | Bodø | 398,431 | 480,661 | |
| | Stockholm/Arlanda | Luleå | 402,949 | 467,608 | |
| | Amsterdam/Schiphol | Madrid/Barajas | 359,582 | 458,560 | 1,207,458 |
| | Rome/Fiumicino | Cagliari, Sardinia | 363,665 | 457,430 | |
| | Rome/Fiumicino | Madrid/Barajas | 291,571 | 457,135 | |
| | Madrid/Barajas | Rome/Fiumicino | 288,463 | 457,111 | 1,291,186 |
| | Amsterdam/Schiphol | Lisbon | 332,296 | 442,593 | |
| | Athens/El. Venizelos | Paris/CDG | 297,056 | 435,115 | |
| | Amsterdam/Schiphol | Málaga/Costa del Sol | 229,366 | 430,838 | |
| | Athens/El. Venizelos | Rhodes | 294,090 | 428,845 | |
| | Athens/El. Venizelos | Chania, Crete | 274,263 | 427,966 | |
| | Madrid/Barajas | London/Heathrow | 454,469 | 425,692 | |
| | Paris/CDG | Barcelona/El Prat | 348,322 | 420,862 | |
| | Paris/CDG | Bordeaux | 295,201 | 413,802 | |
| | Madrid/Barajas | Frankfurt/Main | 304,230 | 413,715 | |
| | Copenhagen | Oslo/Gardermoen | 413,728 | 412,499 | |
| | Brussels | Madrid/Barajas | 279,122 | 410,557 | |
| | Madrid/Barajas | Brussels | 278,738 | 410,359 | |
| | Rome/Fiumicino | Paris/CDG | 344,462 | 406,047 | |
| | Oslo/Gardermoen | Copenhagen | 405,748 | 405,422 | |
| | Dublin | London/Heathrow | 445,413 | 404,011 | |
| | Oslo/Gardermoen | Harstad/Narvik | 319,663 | 403,916 | |
| | Paris/CDG | Rome/Fiumicino | 343,027 | 402,923 | |
Data retrieved from Eurostat, 2011–2019 :
| Rank | Airport 1 | Airport 2 | 2011 | 2012 | 2013 | 2014 | 2015 | 2016 | 2017 | 2018 | 2019 |
| 1 | Madrid/Barajas | Barcelona/El Prat | 3,102,436 | 2,550,462 | 2,213,200 | 2,204,765 | 2,253,387 | 2,328,726 | 2,341,255 | 2,466,968 | 2,572,893 |
| 2 | Frankfurt | Berlin/Tegel | 1,792,655 | 1,813,063 | 1,845,600 | 1,792,006 | 1,907,218 | 1,935,465 | 1,956,128 | 2,292,098 | 2,249,667 |
| 3 | Toulouse/Blagnac | Paris/Orly | 2,322,456 | 2,330,224 | 2,379,100 | 2,330,949 | 2,318,015 | 2,358,917 | 2,325,043 | 2,282,407 | 2,217,892 |
| 4 | Barcelona/El Prat | Palma de Mallorca | 1,639,423 | 1,460,684 | 1,388,900 | 1,410,172 | 1,576,063 | 1,772,613 | 1,944,554 | 2,035,602 | 2,173,939 |
| 5 | Oslo/Gardermoen | Trondheim | 1,749,545 | 1,818,877 | 1,873,944 | 1,912,141 | 1,942,959 | 1,988,105 | 2,089,889 | 2,151,448 | 2,106,440 |
| 6 | Nice | Paris/Orly | 2,236,436 | 2,175,773 | 2,160,300 | 2,072,138 | 2,113,506 | 2,124,792 | 2,217,895 | 2,135,634 | 2,052,649 |
| 7 | Oslo/Gardermoen | Bergen | 1,691,887 | 1,729,076 | 1,722,398 | 1,819,279 | 1,810,826 | 1,881,960 | 1,985,088 | 2,028,680 | 2,003,406 |
| 8 | Madrid/Barajas | Palma de Mallorca | 1,604,853 | 1,442,410 | 1,224,700 | 1,283,404 | 1,411,314 | 1,687,547 | 1,815,387 | 1,967,136 | 1,995,104 |
| 9 | Berlin/Tegel | Munich | 1,667,408 | 1,731,145 | 1,831,700 | 1,868,877 | 1,974,929 | 1,939,820 | 1,973,008 | 1,988,248 | 1,933,817 |
| 10 | London/Heathrow | Dublin | 1,556,111 | 1,577,649 | 1,663,900 | 1,650,394 | 1,682,855 | 1,751,689 | 1,803,479 | 1,809,140 | 1,855,333 |
| 11 | Catania/Fontanarossa | Rome/Fiumicino | 1,842,940 | 1,694,400 | 1,566,800 | 1,869,881 | 1,979,648 | 2,054,721 | 2,017,172 | 1,976,230 | 1,824,428 |
| 12 | Amsterdam/Schiphol | London/Heathrow | 1,406,964 | 1,429,800 | 1,443,400 | 1,486,783 | 1,587,605 | 1,617,170 | 1,689,924 | 1,746,940 | 1,747,789 |
| 13 | Munich | Hamburg | 1,717,734 | 1,719,351 | 1,713,200 | 1,756,990 | 1,811,425 | 1,805,211 | 1,739,252 | 1,749,616 | 1,739,939 |
| 14 | Oslo/Gardermoen | Stavanger | 1,434,043 | 1,517,195 | 1,536,032 | 1,564,631 | 1,515,870 | 1,564,127 | 1,600,959 | 1,675,486 | 1,681,335 |
| 15 | Madrid/Barajas | Gran Canaria | 1,438,377 | 1,301,539 | 1,152,669 | 1,181,442 | 1,305,670 | 1,508,972 | 1,510,429 | 1,616,540 | 1,659,106 |
| 16 | London/Gatwick | Barcelona/El Prat | 517,820 | 741,735 | 1,131,350 | 1,273,850 | 1,354,193 | 1,362,488 | 1,460,378 | 1,556,045 | 1,586,967 |
| 17 | Rome/Fiumicino | Palermo/Falcone Borsellino | 1,499,933 | 1,360,400 | 1,264,100 | 1,475,957 | 1,481,174 | 1,543,462 | 1,589,733 | 1,663,463 | 1,579,946 |
| 18 | Madrid/Barajas | Lisbon | 1,169,714 | 1,108,931 | 975,389 | 1,026,786 | 1,174,116 | 1,299,412 | 1,427,929 | 1,517,620 | 1,557,398 |
| 19 | London/Heathrow | Frankfurt | 1,459,909 | 1,482,649 | 1,488,600 | 1,506,826 | 1,530,986 | 1,486,291 | 1,495,472 | 1,552,249 | 1,548,995 |
| 20 | Palma de Mallorca | Düsseldorf | 944,437 | 985,749 | 1,090,227 | 1,162,268 | 1,201,664 | 1,268,891 | 1,267,676 | 1,495,826 | 1,544,710 |
| 21 | Madrid/Barajas | Tenerife North | 1,337,050 | 1,167,731 | 1,102,701 | 1,094,815 | 1,149,450 | 1,305,110 | 1,380,916 | 1,487,326 | 1,493,755 |
| 22 | Munich | Düsseldorf | 1,569,364 | 1,553,361 | 1,558,200 | 1,527,416 | 1,557,442 | 1,565,997 | 1,554,184 | 1,422,773 | 1,488,322 |
| 23 | Copenhagen | Oslo/Gardermoen | 1,206,480 | 1,291,018 | 1,322,948 | 1,402,753 | 1,427,618 | 1,506,326 | 1,544,534 | 1,509,030 | 1,479,320 |
| 24 | London/Heathrow | Madrid/Barajas | 1,093,400 | 1,197,700 | 1,264,800 | 1,274,714 | 1,320,834 | 1,317,511 | 1,382,290 | 1,416,795 | 1,476,551 |
| 25 | Frankfurt | Hamburg | 1,587,593 | 1,385,867 | 1,362,400 | 1,343,857 | 1,361,027 | 1,372,185 | 1,395,408 | 1,440,312 | 1,426,073 |
| 26 | Barcelona/El Prat | Rome/Fiumicino | | | | | 1,184,506 | 1,315,868 | 1,225,834 | 1,332,401 | 1,402,757 |
| 27 | Stockholm/Arlanda | Copenhagen | 1,166,000 | 1,269,200 | 1,325,700 | 1,444,429 | 1,461,166 | 1,553,276 | 1,520,287 | 1,520,873 | 1,387,544 |
| 28 | Barcelona/El Prat | Amsterdam/Schiphol | 1,321,528 | 1,250,126 | 1,186,808 | 1,217,977 | 1,204,814 | 1,307,902 | 1,363,626 | 1,420,246 | 1,384,848 |
| 29 | Stockholm/Arlanda | Oslo/Gardermoen | 1,153,232 | 1,187,164 | 1,204,351 | 1,354,730 | 1,338,163 | 1,387,885 | 1,406,211 | 1,453,105 | 1,379,312 |
| 30 | Barcelona/El Prat | Paris/CDG | | | | | | | | 1,279,331 | 1,373,128 |

#### Busiest flight routes between an airport in Europe (EU, UK, Switzerland, Iceland and Norway) and outside Europe

Eurostat :
| Rank | Airport 1 | Airport 2 | 2010 | 2012 | 2014 | 2015 | 2016 | 2017 | 2018 | 2019 |
| 1 | London/Heathrow | New York/John F Kennedy | 2,551,276 | 2,881,390 | 3,002,024 | 3,078,693 | 2,960,268 | 2,946,329 | 3,035,228 | 3,192,195 |
| 2 | London/Heathrow | Dubai/Intl | 1,974,098 | 2,067,227 | 2,838,717 | 2,862,852 | 3,038,958 | 3,238,308 | 2,732,638 | 2,333,127 |
| 3 | Paris/CDG | New York/John F Kennedy | 1,190,914 | 1,422,259 | 1,367,882 | 1,501,416 | 1,424,611 | 1,554,793 | 1,580,664 | 1,636,491 |
| 4 | London/Heathrow | Hong Kong/Chek Lap Kok | 1,801,520 | 1,638,834 | 1,608,980 | 1,584,486 | 1,574,741 | 1,588,805 | 1,572,021 | 1,612,530 |
| 5 | London/Heathrow | Los Angeles/Intl | 1,419,144 | 1,428,040 | 1,481,023 | 1,645,002 | 1,565,992 | 1,618,153 | 1,675,577 | 1,602,892 |
| 6 | London/Heathrow | Singapore/Changi | 1,507,032 | 1,745,186 | 1,247,017 | 1,268,407 | 1,314,976 | 1,351,980 | 1,590,704 | 1,526,639 |
| 7 | Paris/Orly | Guadeloupe/Pointe-à-Pitre | 1,098,322 | 1,077,254 | 1,135,945 | 1,166,850 | 1,214,916 | 1,227,553 | 1,299,570 | 1,429,730 |
| 8 | London/Heathrow | Doha/Hamad | N/A | N/A | 653,724 | 1,040,315 | 1,184,994 | 1,287,225 | 1,181,345 | 1,264,687 |
| 9 | London/Heathrow | Chicago/O'Hare | 1,138,579 | 1,188,326 | 1,161,250 | 1,060,332 | 1,073,522 | 1,062,695 | 1,158,537 | 1,250,426 |
| 10 | Paris/CDG | Montreal/Pierre Elliott Trudeau | 1,158,381 | 1,092,084 | 1,107,738 | 1,147,598 | 1,148,800 | 1,183,504 | 1,185,183 | 1,247,300 |
For routes from the EU, UK, Switzerland, Iceland and Norway to other countries inside Europe except to Turkey, the busiest was in 2019 Paris/CDG – Moscow/Sheremetyevo with 830,980.
Busiest flight routes in or from Europe by city pairs
Eurostat :
| Rank | City 1 | City 2 | Passengers (2016) | Passengers (2019) |
| 1 | London | Dublin | 4,771,614 | 5,106,040 |
| 2 | Moscow | Saint Petersburg | 3,836,588 | 5,051,518 |
| 3 | London | Amsterdam | 4,344,935 | 4,920,551 |
| 4 | London | New York | 4,243,687 | 4,869,777 |
| 5 | London | Dubai | 3,960,389 | 3,630,407 |
| 6 | London | Barcelona | 3,125,080 | 3,490,189 |
| 7 | London | Edinburgh | 3,393,013 | 3,373,092 |
| 8 | Paris | Toulouse | 3,260,074 | 3,218,040 |
| 9 | Paris | Nice | 2,975,405 | 3,184,661 |
| 10 | London | Madrid | | 3,142,916 |
* London includes City, Gatwick, Heathrow, Luton, Stansted and Southend airports.
* New York includes Kennedy and Newark airports
* Paris includes Charles de Gaulle (CDG) and Orly airports.
* Barcelona includes El Prat and Girona airports.
* Berlin includes Schönefeld (from 2020 Brandenburg) and Tegel airports.
* Moscow includes Domodedovo, Sheremetyevo and Vnukovo airports.
* Turkey is not included even if Istanbul – Izmir has (as of 2019) more passengers than London – Dublin, because all its domestic routes are mostly or entirely inside Asia.

## National statistics
### Brazil (2022)

Busiest domestic flight routes in Brazil:
| Rank | Airport 1 | Airport 2 | Passengers (2022) |
| 1 | Rio de Janeiro-Santos Dumont | São Paulo-Congonhas | 2,978,669 |
| 2 | Porto Alegre | São Paulo-Congonhas | 1,630,763 |
| 3 | Brasília | São Paulo-Congonhas | 1,565,820 |
| 4 | Recife | São Paulo-Guarulhos | 1,545,757 |
| 5 | Porto Alegre | São Paulo-Guarulhos | 1,524,626 |
| 6 | Belo Horizonte | São Paulo-Congonhas | 1,494,260 |
| 7 | Salvador | São Paulo-Congonhas | 1,290,367 |
| 8 | Belo Horizonte | São Paulo-Guarulhos | 1,234,256 |
| 9 | Recife | São Paulo-Congonhas | 1,169,156 |
| 10 | Brasília | Rio de Janeiro-Santos Dumont | 1,142,563 |

### Argentina (2017)

Busiest international flight routes in Argentina:
| Rank | Airport 1 | Airport 2 | Passengers (2017) |
| 1 | Buenos Aires | Santiago de Chile | 2,027,000 |
| 2 | Buenos Aires | São Paulo | 1,903,000 |
| 3 | Buenos Aires | Miami | 1,001,000 |
| 4 | Buenos Aires | Rio de Janeiro | 938,000 |
| 5 | Buenos Aires | Lima | 896,000 |
| 6 | Buenos Aires | Madrid | 815,000 |
| 7 | Mendoza | Santiago de Chile | 425,000 |
| 8 | Buenos Aires | Bogotá | 372,000 |
| 9 | Buenos Aires | Rome | 332,000 |
| 10 | Buenos Aires | New York | 329,000 |
Busiest domestic flight routes in Argentina:
| Rank | Airport 1 | Airport 2 | Passengers (2017) |
| 1 | Buenos Aires | Córdoba | 1,368,000 |
| 2 | Buenos Aires - Aeroparque | Bariloche | 1,005,000 |
| 3 | Buenos Aires - Aeroparque | Mendoza | 880,000 |
| 4 | Buenos Aires - Aeroparque | Iguazú | 841,000 |
| 5 | Buenos Aires - Aeroparque | Salta | 828,000 |
| 6 | Buenos Aires - Aeroparque | Neuquén | 722,000 |
| 7 | Buenos Aires - Aeroparque | Tucumán | 501,000 |
| 8 | Buenos Aires - Aeroparque | Ushuaia | 490,000 |
| 9 | Buenos Aires - Aeroparque | Comodoro Rivadavia | 462,000 |
| 10 | Buenos Aires - Aeroparque | El Calafate | 383,000 |

### Australia (2019)

Busiest domestic flight routes in Australia (all passengers including connecting):
| Rank | Airport 1 | Airport 2 | Passengers (2019) |
| 1 | Melbourne | Sydney | 9,181,932 |
| 2 | Brisbane | Sydney | 4,820,704 |
| 3 | Brisbane | Melbourne | 3,608,479 |
| 4 | Gold Coast | Sydney | 2,733,449 |
| 5 | Adelaide | Melbourne | 2,538,061 |
| 6 | Gold Coast | Melbourne | 2,122,157 |
| 7 | Melbourne | Perth | 2,110,125 |
| 8 | Adelaide | Sydney | 1,878,741 |
| 9 | Perth | Sydney | 1,692,031 |
| 10 | Melbourne | Hobart | 1,670,181 |
Busiest international flight routes in Australia (all passengers including connecting):
| Rank | Australian airport | Overseas airport | Passengers (2019) |
| 1 | Melbourne | Singapore | 1,629,492 |
| 2 | Sydney | Auckland | 1,602,232 |
| 3 | Sydney | Singapore | 1,537,148 |
| 4 | Melbourne | Auckland | 1,251,457 |
| 5 | Sydney | Hong Kong | 1,195,224 |
| 6 | Perth | Singapore | 1,131,233 |
| 7 | Brisbane | Singapore | 964,447 |
| 8 | Brisbane | Auckland | 955,385 |
| 9 | Sydney | Los Angeles | 908,540 |
| 10 | Perth | Denpasar | 893,420 |

### Colombia (2017)

Busiest domestic flight routes in Colombia:
| Rank | Airport 1 | Airport 2 | Passengers (2017) |
| 1 | Bogotá | Medellín | 3,013,297 |
| 2 | Bogotá | Cartagena | 2,433,483 |
| 3 | Bogotá | Cali | 2,083,833 |
| 4 | Bogotá | Barranquilla | 1,435,766 |
| 5 | Bogotá | Santa Marta | 1,151,101 |
| 6 | Bogotá | Archipelago of San Andrés, Providencia and Santa Catalina | 951,880 |
| 7 | Bogotá | Bucaramanga | 942,793 |
| 8 | Bogotá | Pereira | 849,118 |
| 9 | Cartagena | Medellín | 738,699 |
| 10 | Bogotá | Montería | 568,500 |
Busiest international flight routes in Colombia:
| Rank | Airport 1 | Airport 2 | Passengers (2017) |
| 1 | Bogotá | Panama City | 698,916 |
| 2 | Bogotá | Mexico City | 533,444 |
| 3 | Bogotá | Lima | 470,514 |
| 4 | Bogotá | Miami | 469,899 |
| 5 | Bogotá | Madrid | 447,470 |
| 6 | Bogotá | Quito | 391,586 |
| 7 | Bogotá | Santiago de Chile | 366,904 |
| 8 | Medellín | Panama City | 366,630 |
| 9 | Bogotá | Buenos Aires | 333,481 |
| 10 | Bogotá | Cancún | 306,905 |

### India (2023–2024)

Busiest domestic flight routes from/to Indian cities:
2023–2024 :
| Rank | City pair | City pair | Passengers |
| 1 | Delhi | Mumbai | 6,466,940 |
| 2 | Bengaluru | Delhi | 4,779,347 |
| 3 | Bengaluru | Mumbai | 4,433,746 |
| 4 | Delhi | Hyderabad | 2,916,911 |
| 5 | Delhi | Kolkata | 2,821,077 |
| 6 | Delhi | Pune | 2,805,587 |
| 7 | Delhi | Srinagar | 2,625,483 |
| 8 | Mumbai | Chennai | 2,486,921 |
| 9 | Delhi | Ahmedabad | 2,402,170 |
| 10 | Delhi | Chennai | 2,317,258 |
| 11 | Mumbai | Hyderabad | 2,248,905 |
| 12 | Bengaluru | Hyderabad | 2,140,533 |
| 13 | Mumbai | Ahmedabad | 2,108,650 |
| 14 | Bengaluru | Kolkata | 1,957,504 |
| 15 | Bengaluru | Pune | 1,783,570 |
2020–2021 :
| Rank | City pair | City pair | Passengers |
| 1 | Delhi | Mumbai | 1,430,543 |
| 2 | Kolkata | Bengaluru | 1,262,780 |
| 3 | Delhi | Srinagar | 1,261,630 |
| 4 | Delhi | Bengaluru | 1,240,378 |
| 5 | Delhi | Patna | 1,072,840 |
| 6 | Delhi | Hyderabad | 1,065,132 |
| 7 | Delhi | Kolkata | 938,388 |
| 8 | Delhi | Pune | 809,773 |
| 9 | Delhi | Goa | 765,398 |
| 10 | Delhi | Guwahati | 747,471 |
| 11 | Delhi | Chennai | 739,220 |
| 12 | Mumbai | Goa | 730,108 |
| 13 | Delhi | Ahmedabad | 711,690 |
| 14 | Mumbai | Bengaluru | 691,598 |
| 15 | Kolkata | Hyderabad | 674,027 |
2019–2020 :
| Rank | City pair | City pair | Passengers |
| 1 | Delhi | Mumbai | 6,996,834 |
| 2 | Delhi | Bengaluru | 4,351,143 |
| 3 | Mumbai | Bengaluru | 3,954,618 |
| 4 | Delhi | Kolkata | 3,199,982 |
| 5 | Delhi | Hyderabad | 2,936,141 |
| 6 | Delhi | Pune | 2,604,253 |
| 7 | Mumbai | Hyderabad | 2,538,612 |
| 8 | Delhi | Chennai | 2,323,511 |
| 9 | Mumbai | Goa | 2,192,536 |
| 10 | Delhi | Ahmedabad | 2,184,190 |
| 11 | Mumbai | Chennai | 2,142,980 |
| 12 | Delhi | Patna | 2,133,939 |
| 13 | Mumbai | Kolkata | 2,012,039 |
| 14 | Bengaluru | Hyderabad | 2,002,020 |
| 15 | Delhi | Goa | 1,863,918 |
Busiest international flight routes from/to Indian cities:
2019 :
| Rank | City pair | City pair | Passengers |
| 1 | Mumbai | Dubai | 2,378,916 |
| 2 | Delhi | Dubai | 1,966,260 |
| 3 | Delhi | Bangkok | 1,093,580 |
| 4 | Hyderabad | Dubai | 1,068,343 |
| 5 | Kochi | Dubai | 1,037,314 |
| 6 | Chennai | Dubai | 1,017,254 |
| 7 | Chennai | Colombo | 940,521 |
| 8 | Bengaluru | Dubai | 865,088 |
| 9 | Chennai | Singapore | 855,420 |
| 10 | Delhi | London | 850,170 |
| 11 | Mumbai | Singapore | 824,590 |
| 12 | Delhi | Kathmandu | 767,262 |
| 13 | Mumbai | Abu Dhabi | 751,112 |
| 14 | Delhi | Singapore | 750,562 |
| 15 | Delhi | Hong Kong | 743,817 |

### Mexico (2018–2023)

Busiest domestic flight routes in Mexico (passengers):
| Rank | Airport 1 | Airport 2 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | % change |
| 1 | Mexico City | Cancún | 4,990,647 | 5,009,235 | 2,874,267 | 4,546,906 | 4,803,489 | 4,335,174 | -9.75% |
| 2 | Monterrey | Mexico City | 3,452,421 | 3,601,937 | 1,563,243 | 2,244,156 | 3,180,969 | 3,404,529 | 7.03% |
| 3 | Mexico City | Guadalajara | 3,167,438 | 3,386,521 | 1,536,441 | 1,940,131 | 2,916,413 | 3,012,874 | 3.31% |
| 4 | Tijuana | Mexico City | 1,964,460 | 2,151,343 | 1,307,478 | 2,133,168 | 2,519,260 | 2,300,547 | -8.68% |
| 5 | Tijuana | Guadalajara | 1,783,149 | 1,748,213 | 1,301,775 | 1,825,055 | 2,209,718 | 2,142,087 | -3.06% |
| 6 | Mexico City | Mérida | 1,686,256 | 1,851,414 | 909,396 | 1,416,257 | 1,943,683 | 1,896,586 | -2.42% |
| 7 | Monterrey | Cancún | 1,282,777 | 1,386,056 | 822,601 | 1,458,920 | 1,650,289 | 1,810,719 | 9.72% |
| 8 | Puerto Vallarta | Mexico City | 956,419 | 1,094,694 | 575,158 | 1,008,024 | 1,333,474 | 1,140,366 | -14.48% |
| 9 | Guadalajara | Cancún | 947,599 | 885,881 | 635,422 | 1,051,887 | 1,026,505 | 1,098,997 | 7.06% |
| 10 | San José del Cabo | Mexico City | 844,785 | 971,016 | 594,263 | 994,510 | 1,215,421 | 1,071,051 | -11.88% |
Busiest international flight routes from/to Mexico (passengers):
| Rank | Airport 1 | Airport 2 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | % change |
| 1 | Cancún | Dallas/Fort Worth | 779,235 | 840,800 | 507,946 | 1,026,047 | 1,215,860 | 1,160,043 | -4.59% |
| 2 | Cancún | Houston/Intercontinental | 868,115 | 856,952 | 504,622 | 930,801 | 1,112,498 | 1,137,242 | 2.22% |
| 3 | Guadalajara | Los Angeles | 993,213 | 994,822 | 530,232 | 787,850 | 903,149 | 1,079,804 | 19.56% |
| 4 | Mexico City | Madrid | 779,777 | 880,988 | 265,919 | 504,962 | 900,028 | 1,030,882 | 14.54% |
| 5 | Cancún | Chicago/O'Hare | 809,898 | 763,830 | 409,671 | 806,188 | 992,998 | 1,011,503 | 1.86% |
| 6 | Mexico City | Bogotá | 849,590 | 866,896 | 233,726 | 432,080 | 912,549 | 925,729 | 1.44% |
| 7 | Mexico City | Los Angeles | 1,236,168 | 1,044,786 | 379,603 | 771,673 | 846,757 | 891,713 | 5.31% |
| 8 | Mexico City | Houston/Intercontinental | 1,049,838 | 831,729 | 332,243 | 961,069 | 879,133 | 889,431 | 1.17% |
| 9 | Cancún | Atlanta | 721,936 | 706,409 | 303,913 | 586,573 | 759,622 | 884,252 | 16.41% |
| 10 | Cancún | Toronto-Pearson | 801,544 | 822,744 | 298,135 | 119,334 | 546,583 | 772,937 | 41.41% |

### Turkey (2019)

Busiest domestic and international flight routes:
| Rank | Airport 1 | Airport 2 | Passengers (2019) |
| 1 | Istanbul/Sabiha Gökçen | Izmir | 2,751,298 |
| 2 | Istanbul/Sabiha Gökçen | Antalya | 2,616,991 |
| 3 | Antalya | Moscow/Vnukovo | 2,329,578 |
| 4 | Istanbul/Sabiha Gökçen | Ankara | 2,184,197 |
| 5 | Istanbul/Havalimani | Izmir | 1,849,317 |
| 6 | Istanbul/Sabiha Gökçen | Trabzon | 1,579,391 |
| 7 | Istanbul/Havalimani | Antalya | 1,524,256 |
| 8 | Istanbul/Havalimani | Tehran | 1,460,900 |
| 9 | Istanbul/Sabiha Gökçen | Adana | 1,448,183 |
| 10 | Istanbul/Havalimani | Ankara | 1,411,924 |
In 2019, the Atatürk – Izmir route had 728,279 passengers as the old Istanbul airport in Atatürk was also serving the traffic during this year. The new Istanbul airport in Havalimani opened on 6 April 2019.

### United States (September 2014 – August 2015)

Busiest flight routes by city pairs within the United States:
The statistics below are based on metro areas, not individual airports.
| Rank | City 1 | City 2 | Passengers (Sep 2014 – Aug 2015) |
| 1 | Chicago, IL | New York, NY | 4,020,000 |
| 2 | Los Angeles, CA | San Francisco, CA | 3,660,000 |
| 3 | Los Angeles, CA | New York, NY | 3,420,000 |
| 4 | Chicago, IL | Los Angeles, CA | 3,010,000 |
| 5 | Miami, FL | New York, NY | 2,750,000 |
| 6 | Atlanta, GA | Chicago, IL | 2,720,000 |
| 7 | Chicago, IL | Minneapolis, MN | 2,720,000 |
| 8 | Atlanta, GA | New York, NY | 2,600,000 |
| 9 | Atlanta, GA | Orlando, FL | 2,620,000 |
| 10 | Chicago, IL | Washington, DC | 2,620,000 |