The list of busiest airports in the world is calculated by number of passengers passing through airports,either as departure,arrival or transit. This list is maintained according to the data provided by Airports Council International (ACI). These world’s busiest airports are ranked according the numbers of passengers traveled in 2015, however list remains less ore more similar in 2016 as well.
Hartsfield–Jackson Atlanta International Airport (USA) is the most busiest airport in the world since 2000.It facilitate total 101,491,106 passengers in only 2015.
Beijing Capital International Airport China came at 2nd place with total 89,938,628 passengers travel through it in 2015. It is considered as on of the busiest airport in Asia.
London Heathrow Airport scored 3rd place with total 73,408,442 passengers used it’s facility. It is the the most busy busiest airport in Europe. If you combine the passenger traffic of all the airports in a city, London Heathrow Airport has the world’s busiest city airport system.
Here is a complete list of 50 busiest airports in the world with number of passengers traveled through them.
Top 50 Busiest Airports In The World
| Rank | Airport | Country | Location | Total passengers |
| 1 | Hartsfield–Jackson Atlanta International Airport | United States | Atlanta, Georgia | 96,178,899 |
| 2 | Beijing Capital International Airport | China | Chaoyang, Beijing | 86,130,390 |
| 3 | London Heathrow Airport | United Kingdom | Hillingdon, London | 73,408,442 |
| 4 | Tokyo Haneda Airport | Japan | Ota, Tokyo | 72,826,862 |
| 5 | Los Angeles International Airport | United States | Los Angeles, California | 70,665,472 |
| 6 | Dubai International Airport | United Arab Emirates | Garhoud, Dubai | 70,475,636 |
| 7 | O’Hare International Airport | United States | Chicago, Illinois | 70,015,746 |
| 8 | Paris-Charles de Gaulle Airport | France | Roissy-en-France, Île-de-France | 63,808,796 |
| 9 | Dallas/Fort Worth International Airport | United States | Dallas-Fort Worth, Texas | 63,523,489 |
| 10 | China Hong Kong International Airport | China | Chek Lap Kok, Hong Kong | 63,148,379 |
| 11 | Frankfurt Airport | Germany | Frankfurt, Hesse | 59,566,132 |
| 12 | Soekarno-Hatta International Airport | Indonesia | Cengkareng, Banten | 57,005,406 |
| 13 | Istanbul Atatürk Airport | Turkey | Istanbul | 56,767,108 |
| 14 | Amsterdam Airport Schiphol | The Netherlands | Haarlemmermeer, North Holland | 54,978,023 |
| 15 | Guangzhou Baiyun International Airport | China | Huadu, Guangzhou, Guangdong | 54,780,346 |
| 16 | Singapore Changi Airport | Singapore | Changi | 54,091,802 |
| 17 | John F. Kennedy International Airport | United States | Queens, New York City | 53,635,346 |
| 18 | Denver International Airport | United States | Denver, Colorado | 53,472,514 |
| 19 | Shanghai Pudong International Airport | China | Pudong, Shanghai | 51,651,800 |
| 20 | Kuala Lumpur International Airport | Malaysia | Sepang, Selangor | 48,932,471 |
| 21 | United States San Francisco International Airport | United States | San Mateo County, California | 47,114,611 |
| 22 | Thailand Suvarnabhumi Airport | Thailand | Bang Phli, Samut Prakan | 46,423,352 |
| 23 | South Korea Seoul Incheon International Airport | Republic of Korea | Incheon | 45,662,322 |
| 24 | Charlotte Douglas International Airport | United States | Charlotte, North Carolina | 44,333,475 |
| 25 | United States McCarran International Airport | United States | Las Vegas, Nevada | 42,869,517 |
| 26 | Phoenix Sky Harbor International Airport | United States | Phoenix, Arizona | 42,125,212 |
| 27 | Spain Madrid Barajas Airport | Spain | Madrid | 41,815,261 |
| 28 | George Bush Intercontinental Airport | United States | Houston, Texas | 41,194,558 |
| 29 | United States Miami International Airport | United States | Miami-Dade County, Florida | 40,941,879 |
| 30 | Brazil São Paulo-Guarulhos International Airport | Brazil | Guarulhos, São Paulo | 39,773,716 |
| 31 | India Indira Gandhi International Airport | India | Delhi | 39,752,819 |
| 32 | Germany Munich Airport | Germany | Freising, Bavaria | 39,700,515 |
| 33 | Australia Sydney Kingsford-Smith Airport | Australia | Sydney, New South Wales | 38,863,380 |
| 34 | Canada Toronto Pearson International Airport | Canada | Mississauga, Ontario | 38,569,088 |
| 35 | Italy Leonardo da Vinci–Fiumicino Airport | Italy | Fiumicino, Lazio | 38,506,467 |
| 36 | United Kingdom London Gatwick Airport | United Kingdom | Crawley, West Sussex | 38,105,747 |
| 37 | China Shanghai Hongqiao International Airport | China | Changning District, Shanghai | 37,971,135 |
| 38 | China Chengdu Shuangliu International Airport | China | Shuangliu, Chengdu, Sichuan | 37,712,357 |
| 39 | Spain Barcelona–El Prat Airport | Spain | Barcelona | 37,540,326 |
| 40 | Seattle-Tacoma International Airport | United States | Seattle, Washington | 37,497,941 |
| 41 | China Shenzhen Bao’an International Airport | China | Bao’an District,Shenzhen | 36,272,701 |
| 42 | Taiwan Taoyuan International Airport | Taiwan | Dayuan, Taoyuan City | 35,804,465 |
| 43 | United States Orlando International Airport | United States | Orlando, Florida | 35,714,091 |
| 44 | Newark Liberty International Airport | United States | Newark, New Jersey | 35,610,759 |
| 45 | Japan Narita International Airport | Japan | Narita, Chiba | 35,535,206 |
| 46 | Minneapolis/St Paul International Airport | United States | St. Paul, Minnesota | 35,147,083 |
| 47 | India Chhatrapati Shivaji International Airport | India | Mumbai, Maharashtra | 34,993,738 |
| 48 | Mexico Benito Juárez International Airport | Mexico | Venustiano Carranza | 34,255,739 |
| 49 | Philippines Ninoy Aquino International Airport | Philippines | Pasay/Parañaque, Metro Manila | 34,015,169 |
| 50 | Russia Domodedovo International Airport | Russia | Domodedovo, Moscow Oblast | 33,108,047 |