The world's busiest airports by passenger traffic are measured by total passengers (data from Airports Council International), defined as passengers enplaned plus passengers deplaned plus direct-transit passengers. Hartsfield–Jackson Atlanta International Airport has been the world's busiest airport every year since 2000; with all airports combined, London has the world's busiest city airport system by passenger count. As of 2016, seven countries have at least two airports in the top 50; the United States of America has 16, China has 8 (including Hong Kong), and the United Kingdom, Japan, Germany, India, and Spain have two airports each.

2009 statistics Airports Council International's final full year figures are as follows:ATW World Airline Report 2009

RankAirportLocationCountryCode(IATA/ICAO)TotalpassengersRankchange%change1. Hartsfield–Jackson Atlanta International Airport Atlanta, Georgia United StatesATL/KATL88,032,0862.2%2. London Heathrow Airport Hillingdon, Greater London, England United KingdomLHR/EGLL66,037,57811.5%3. Beijing Capital International Airport Chaoyang-Shunyi, Beijing ChinaPEK/ZBAA65,372,012516.9%4. O'Hare International Airport Chicago, Illinois United StatesORD/KORD64,158,34326.1%5. Tokyo Haneda Airport Ōta, Tokyo JapanHND/RJTT61,903,65617.2%6. Paris-Charles de Gaulle Airport Roissy-en-France, Val d'Oise, Île-de-France FranceCDG/LFPG57,906,86614.9%7. Los Angeles International Airport Los Angeles, California United StatesLAX/KLAX56,520,84315.5%8. Dallas/Fort Worth International Airport Dallas–Fort Worth, Texas United StatesDFW/KDFW56,030,45711.9%9. Frankfurt Airport Frankfurt, Hesse GermanyFRA/EDDF50,932,8404.7%10. Denver International Airport Denver, Colorado United StatesDEN/KDEN50,167,4852.1%11. Madrid-Barajas Airport Barajas, Madrid SpainMAD/LEMD48,250,7845.1%12. John F. Kennedy International AirportQueens, New York, New York United StatesJFK/KJFK45,915,06913.9%13. Hong Kong International Airport Chek Lap Kok, Hong Kong Hong KongHKG/VHHH45,558,80714.8%14. Amsterdam Airport Schiphol Haarlemmermeer, North Holland NetherlandsAMS/EHAM43,570,3708.1%15. Dubai International Airport Garhoud, Dubai United Arab EmiratesDXB/OMDB40,901,75259.2%16. Suvarnabhumi Airport Bang Phli, Samut Prakan ThailandBKK/VTBS40,500,22424.9%17. McCarran International Airport Las Vegas, Nevada United StatesLAS/KLAS40,469,01226.3%18. George Bush Intercontinental Airport Houston, Texas United StatesIAH/KIAH40,007,35424.1%19. Phoenix Sky Harbor International Airport Phoenix, Arizona United StatesPHX/KPHX37,824,98225.2%20. San Francisco International Airport San Mateo County, California United StatesSFO/KSFO37,338,94210.3%21. Singapore Changi Airport Changi SingaporeSIN/WSSS37,203,97821.3%22. Soekarno-Hatta International Airport Cengkareng, Jakarta, Java IndonesiaCGK/WIII37,143,7191415.2%23. Guangzhou Baiyun International Airport Baiyun-Huadu District, Guangzhou, Guangdong ChinaCAN/ZGGG37,048,712910.8%24. Charlotte Douglas International Airport Charlotte, North Carolina United StatesCLT/KCLT34,536,66620.6%25. Miami International Airport Miami-Dade County, Florida United StatesMIA/KMIA33,886,02540.5%26. Leonardo da Vinci Airport Fiumicino, Rome ItalyFCO/LIRF33,723,21314.0%27. Orlando International Airport Orlando, Florida United StatesMCO/KMCO33,693,64955.5%28. Sydney Airport Sydney, New South Wales AustraliaSYD/YSSY33,451,38350.4%29. Newark Liberty International Airport Newark, New Jersey United StatesEWR/KEWR33,399,20765.5%30. Munich Airport Munich, Bavaria GermanyMUC/EDDM32,681,06735.4%31. London Gatwick Airport Crawley, West Sussex, England United KingdomLGW/EGKK32,398,97935.3%32. Minneapolis-Saint Paul International Airport Fort Snelling, Minnesota United StatesMSP/KMSP32,378,59924.9%33. Narita International Airport Narita, Chiba JapanNRT/RJAA32,135,19124.0%34. Shanghai Pudong International Airport Pudong, Shanghai ChinaPVG/ZSPD32,102,549613.7%35. Detroit Metropolitan Wayne County Airport Detroit, Michigan United StatesDTW/KDTW31,357,3881110.8%36. Seattle-Tacoma International Airport SeaTac, Washington United StatesSEA/KSEA31,227,51213.0%37. Philadelphia International Airport Philadelphia, Pennsylvania United StatesPHL/KPHI30,669,5643.7%38. Toronto Pearson International Airport Mississauga, Ontario CanadaYYZ/CYYZ30,368,33946.1%39. Atatürk International Airport Yesilköy, Istanbul TurkeyIST/LTBA29,812,88834.3%40. Kuala Lumpur International Airport Sepang, Selangor MalaysiaKUL/WMKK29,682,09317.8%41. Seoul Incheon International Airport Incheon ICN/RKSI28,677,16124.9%42. Barcelona Airport Barcelona, Catalonia SpainBCN/LEBL27,301,66249.8%43. Logan International Airport Boston, Massachusetts United StatesBOS/KBOS25,512,08622.3%44. Indira Gandhi International Airport Delhi IndiaDEL/VIDP25,252,81468.6%45. Melbourne Airport Melbourne, Victoria AustraliaMEL/YMML25,248,76211.4%46. Paris-Orly Airport Orly FranceORY/LFPO25,107,69324.2%47. Shanghai Hongqiao International Airport Changning-Minhang, Shanghai ChinaSHA/ZSSS25,078,548?9.6%48. Chhatrapati Shivaji International Airport Mumbai, Maharashtra IndiaBOM/VABB24,804,76611.9%49. Shenzhen Bao'an International Airport Bao'an, Shenzhen, Guangdong ChinaSZX/ZGSZ24,486,406?14.4%50. Mexico City International Airport Mexico City MexicoMEX/MMMX24,243,05677.5%

2008 statistics Airports Council International's final full year figures are as follows:

+RankAirportLocationCountryCode(IATA/ICAO)TotalpassengersRankchange%change1. Hartsfield–Jackson Atlanta International AirportAtlanta, Georgia United StatesATL/KATL90,039,2800.7%2. O'Hare International Airport Chicago, Illinois United StatesORD/KORD69,353,8769.0%3. London Heathrow Airport Hillingdon, Greater London United KingdomLHR/EGLL67,056,3791.5%4. Tokyo Haneda Airport Ōta, Tokyo JapanHND/RJTT66,754,8290.2%5. Paris-Charles de Gaulle Airport Roissy-en-France, Val d'Oise, Île-de-France FranceCDG/LFPG60,874,68111.6%6. Los Angeles International Airport Los Angeles, California United StatesLAX/KLAX59,497,53914.7%7. Dallas/Fort Worth International Airport Dallas–Fort Worth, Texas United StatesDFW/KDFW57,093,1874.5%8. Beijing Capital International Airport Chaoyang-Shunyi, Beijing ChinaPEK/ZBAA55,937,28914.4%9. Frankfurt Airport Frankfurt, Hesse GermanyFRA/EDDF53,467,45011.3%10. Denver International Airport Denver, Colorado United States DEN/KDEN51,245,33412.8%11. Madrid-Barajas Airport Barajas, Madrid SpainMAD/LEMD50,824,43512.4%12. Hong Kong International Airport Chek Lap Kok, Hong Kong Hong Kong HKG/VHHH47,857,74621.7%13. John F. Kennedy International AirportQueens, New York, New York United StatesJFK/KJFK47,807,8160.2%14. Amsterdam Airport Schiphol Haarlemmermeer, North Holland NetherlandsAMS/EHAM47,430,01920.8%15. McCarran International Airport Las Vegas, Nevada United StatesLAS/KLAS43,208,7248.0%16. George Bush Intercontinental Airport Houston, Texas United StatesIAH/KIAH41,709,3893.0%17. Phoenix Sky Harbor International Airport Phoenix, Maricopa, Arizona United StatesPHX/KPHX39,891,1935.4%18. Suvarnabhumi Airport Bang Phli, Samut Prakan ThailandBKK/VTBS38,603,4906.3%19. Singapore Changi Airport Changi SingaporeSIN/WSSS37,694,8242.7%20. Dubai International Airport Garhoud, Dubai United Arab EmiratesDXB/OMDB37,441,44079.0%21. San Francisco International Airport San Mateo County, California United StatesSFO/KSFO37,234,59224.7%22. Orlando International Airport Orlando, Florida United StatesMCO/KMCO35,660,74222.3%23. Newark Liberty International Airport Newark, New Jersey United StatesEWR/KEWR35,360,84822.8%24. Detroit Metropolitan Wayne County Airport Romulus, Michigan United StatesDTW/KDTW35,135,82822.4%25. Leonardo da Vinci AirportFiumicino, Rome, Lazio ItalyFCO/LIRF35,132,22466.9%26. Charlotte Douglas International Airport Charlotte, North Carolina United StatesCLT/KCLT34,739,02044.7%27. Munich AirportErding, Bavaria GermanyMUC/EDDM34,530,59311.7%28. London Gatwick Airport Crawley, West Sussex, South East, England United KingdomLGW/EGKK34,214,74032.9%29. Miami International Airport Miami, Florida United StatesMIA/KMIA34,063,5311.0%30. Minneapolis-Saint Paul International Airport Fort Snelling, Minnesota United StatesMSP/KMSP34,056,4433.0%31. Narita International Airport Narita, Chiba JapanNRT/RJAA33,486,51165.6%32. Guangzhou Baiyun International Airport Baiyun-Huadu, Guangzhou, Guangdong ChinaCAN/ZGGG33,444,81478.0%33. Sydney Airport Sydney, New South Wales AustraliaSYD/YSSY33,302,64213.0%34. Toronto Pearson International Airport Mississauga, Ontario CanadaYYZ/CYYZ32,338,90222.8%35. Seattle-Tacoma International Airport SeaTac, Washington United StatesSEA/KSEA32,187,93932.8%36. Soekarno-Hatta International Airport Cengkareng, Jakarta, Java IndonesiaCGK/WIII32,172,11430.6%37. Philadelphia International Airport Philadelphia, Pennsylvania United StatesPHL/KPHI31,832,41921.2%38. Barcelona Airport Barcelona, Catalonia SpainBCN/LEBL30,195,79468.1%39. Seoul Incheon International Airport Incheon ICN/RKSI30,166,81624.0%40. Shanghai Pudong International Airport Pudong, Shanghai ChinaPVG/ZSPD28,230,0172.4%41. Kuala Lumpur International Airport Sepang, Selangor MalaysiaKUL/WMKK27,529,35512.4%42. Atatürk International Airport Yesilköy, Istanbul TurkeyIST/LTBA28,553,13233.1%43. Mexico City International Airport Mexico City MexicoMEX/MMMX26,210,21711.3%44. Paris-Orly Airport Orly FranceORY/LFPO26,207,62810.9%45. Logan International Airport Boston, Massachusetts United StatesBOS/KBOS26,102,39147.1%46. Melbourne Airport Melbourne, Victoria AustraliaMEL/YMML24,892,467?7.9%47. Chhatrapati Shivaji International Airport Mumbai, Maharashtra IndiaBOM/VABB24,335,30613.6%48. Washington Dulles International Airport Dulles, Virginia United StatesIAD/KIAD23,698,0103.4%49. Dublin Airport Fingal, County Dublin IrelandDUB/EIDW23,466,630?0.8%50. Indira Gandhi International Airport Delhi IndiaDEL/VIDP23,181,090?0.7%

2007 statistics Airports Council International's final full year figures are as follows: