The following list sorts countries by the number of passengers transported by airlines that are registered in the respective country according to data from the World Bank. [1]
| Country | Airline passengers carried | Year |
|---|---|---|
 United States | 666,153,000 | 2021 |
 China | 440,301,216 | 2021 |
 Russia | 96,851,770 | 2021 |
 India | 83,964,797 | 2021 |
 Ireland | 74,065,210 | 2021 |
 Turkey | 69,065,870 | 2021 |
 Brazil | 61,896,520 | 2021 |
 Mexico | 54,217,880 | 2021 |
 Japan | 45,410,150 | 2021 |
 Spain | 43,440,480 | 2021 |
 South Korea | 34,020,090 | 2021 |
 Indonesia | 33,549,830 | 2021 |
 Germany | 33,073,180 | 2021 |
 France | 32,000,530 | 2021 |
 Saudi Arabia | 29,403,730 | 2021 |
 United Arab Emirates | 28,422,620 | 2021 |
 United Kingdom | 26,631,930 | 2021 |
 Colombia | 26,167,360 | 2021 |
 Canada | 24,951,000 | 2021 |
 Australia | 24,572,960 | 2021 |
 Hungary | 20,127,200 | 2021 |
 Sweden | 20,067,140 | 2021 |
 Netherlands | 19,349,170 | 2021 |
 Austria | 18,901,050 | 2021 |
 Qatar | 14,832,940 | 2021 |
 Vietnam | 14,754,850 | 2021 |
 Iran | 13,695,900 | 2021 |
 Thailand | 12,734,580 | 2021 |
 Norway | 12,277,220 | 2004 |
 Switzerland | 10,988,880 | 2021 |
 Chile | 10,302,880 | 2021 |
 South Africa | 9,321,580 | 2021 |
 Peru | 9,053,970 | 2021 |
 Kazakhstan | 8,765,000 | 2021 |
 New Zealand | 8,729,630 | 2021 |
 Greece | 8,726,340 | 2021 |
 Panama | 8,208,380 | 2021 |
 Portugal | 8,056,490 | 2021 |
 Ethiopia | 7,065,950 | 2021 |
 Philippines | 6,886,920 | 2021 |
 Argentina | 6,708,100 | 2021 |
 Denmark | 6,428,700 | 2004 |
 Egypt | 5,563,390 | 2021 |
 Belgium | 5,404,280 | 2021 |
 Malaysia | 4,965,360 | 2021 |
 Pakistan | 4,930,660 | 2021 |
 Morocco | 4,740,710 | 2021 |
 Nigeria | 4,486,310 | 2021 |
 Bolivia | 4,311,880 | 2021 |
 Bangladesh | 3,750,750 | 2021 |
 Poland | 3,676,180 | 2021 |
 Ukraine | 3,282,710 | 2021 |
 Finland | 2,805,550 | 2021 |
 Romania | 2,719,210 | 2021 |
 Nepal | 2,550,510 | 2021 |
 Kenya | 2,459,110 | 2021 |
 Italy | 2,449,340 | 2021 |
 Israel | 2,437,210 | 2021 |
 Singapore | 2,311,710 | 2021 |
 Kuwait | 2,182,890 | 2021 |
 Oman | 2,075,390 | 2021 |
 Uzbekistan | 2,010,910 | 2021 |
 Algeria | 1,949,940 | 2021 |
 Bahrain | 1,840,270 | 2021 |
 Jordan | 1,695,300 | 2021 |
 Tunisia | 1,675,780 | 2021 |
 Iraq | 1,620,010 | 2021 |
 Lebanon | 1,603,130 | 2021 |
 Latvia | 1,598,680 | 2021 |
 Ecuador | 1,534,850 | 2021 |
 Iceland | 1,499,030 | 2021 |
 Czech Republic | 1,418,030 | 2021 |
 El Salvador | 1,412,030 | 2021 |
 Sudan | 1,386,970 | 2021 |
 Serbia | 1,276,460 | 2021 |
 Tanzania | 1,146,970 | 2021 |
 Myanmar | 1,132,660 | 2021 |
 Azerbaijan | 1,102,450 | 2021 |
 Luxembourg | 1,081,480 | 2021 |
 Bahamas | 1,065,150 | 2021 |
 Belarus | 1,040,730 | 2021 |
 Papua New Guinea | 1,039,010 | 2021 |
 Libya | 968,480 | 2021 |
 Sri Lanka | 871,680 | 2021 |
 Hong Kong | 777,200 | 2021 |
 Croatia | 767,760 | 2021 |
 Rwanda | 715,760 | 2021 |
 Macao | 698,050 | 2021 |
 Syria | 672,220 | 2021 |
 Togo | 672,180 | 2021 |
 Belize | 670,360 | 2021 |
 Costa Rica | 669,300 | 2021 |
 Trinidad and Tobago | 652,150 | 2021 |
 Turkmenistan | 648,370 | 2021 |
 Malta | 597,720 | 2021 |
 Ivory Coast | 569,310 | 2021 |
 Uruguay | 563,630 | 2009 |
 Ghana | 559,390 | 2021 |
 Moldova | 528,580 | 2021 |
 Mozambique | 411,740 | 2021 |
 Democratic Republic of the Congo | 392,100 | 2021 |
 Senegal | 359,710 | 2021 |
 Angola | 311,490 | 2021 |
 Afghanistan | 293,210 | 2021 |
 Maldives | 277,880 | 2021 |
 Aruba | 274,280 | 2018 |
 Honduras | 271,310 | 2021 |
 Venezuela | 265,280 | 2021 |
 Mauritania | 207,220 | 2021 |
 Albania | 193,260 | 2021 |
 Jamaica | 180,950 | 2018 |
 Armenia | 179,200 | 2021 |
 Cameroon | 177,990 | 2021 |
 Botswana | 172,020 | 2021 |
 Kyrgyzstan | 171,350 | 2021 |
 Republic of the Congo | 157,780 | 2021 |
 Laos | 157,290 | 2021 |
 Mauritius | 153,240 | 2021 |
 Seychelles | 137,560 | 2021 |
 Zambia | 136,610 | 2021 |
 Fiji | 133,710 | 2021 |
 Vanuatu | 128,160 | 2021 |
 Tajikistan | 125,160 | 2021 |
 Burkina Faso | 112,940 | 2021 |
 Paraguay | 111,960 | 2021 |
 Gambia | 109,540 | 2019 |
 Madagascar | 109,460 | 2021 |
 Cyprus | 103,020 | 2021 |
 Solomon Islands | 100,590 | 2021 |
 North Macedonia | 86,870 | 2009 |
 Georgia | 84,590 | 2021 |
 Gabon | 77,320 | 2016 |
 Cape Verde | 76,350 | 2021 |
 Zimbabwe | 75,640 | 2021 |
 Dominican Republic | 69,450 | 2021 |
 Mongolia | 61,610 | 2021 |
 Nicaragua | 61,030 | 2000 |
 Guinea | 58,500 | 1999 |
 Yemen | 52,030 | 2021 |
 Cambodia | 50,220 | 2021 |
 Sierra Leone | 50,190 | 2012 |
 Kiribati | 46,390 | 2021 |
 Central African Republic | 46,360 | 2001 |
 Eritrea | 45,100 | 2021 |
 Bulgaria | 41,130 | 2021 |
 Antigua and Barbuda | 40,630 | 2021 |
 Somalia | 34,070 | 2021 |
 Mali | 33,440 | 2013 |
 Equatorial Guinea | 31,270 | 2021 |
 Marshall Islands | 30,110 | 2021 |
 Chad | 28,300 | 2014 |
 São Tomé and Príncipe | 28,020 | 2021 |
 Brunei | 27,880 | 2021 |
 Haiti | 23,120 | 2021 |
 Bhutan | 22,380 | 2021 |
 Cuba | 22,360 | 2021 |
 Slovenia | 21,040 | 2021 |
 Suriname | 20,180 | 2021 |
 Uganda | 16,490 | 2021 |
 Niger | 15,020 | 2021 |
 Eswatini | 13,340 | 2021 |
 Burundi | 12,000 | 2021 |
 Lithuania | 11,290 | 2021 |
 Slovakia | 8,900 | 2021 |
 Guyana | 7,510 | 2021 |
 Samoa | 7,210 | 2021 |
 Nauru | 3,340 | 2021 |
 Namibia | 2,250 | 2021 |
 Guatemala | 1,770 | 2021 |
 Bosnia and Herzegovina | 1,590 | 2020 |
 Montenegro | 1,590 | 2021 |
 Lesotho | 1,300 | 1999 |
 Malawi | 1,290 | 2021 |
 Benin | 900 | 2016 |
 Estonia | 860 | 2019 |
 North Korea | 520 | 2021 |
 Monaco | 320 | 2017 |