Largest airlines in the world
The largest airlines in the world can be measured in several ways. As of 2024, United Airlines was the largest in terms of available seat miles (ASM),[1] revenue seat miles (RPM),[2] mainline fleet size,[3] the number of both mainline employees[4] and destinations served;[5] Delta Air Lines was the most valuable by revenue, assets, market capitalization, and brand value;[6] American Airlines Group carries the most passengers and has the most employees when American Eagle is included; FedEx Express carries the most freight in tonne-kilometers; Southwest Airlines has the greatest number of routes; and Turkish Airlines serves the most countries.[7]
Financials
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2024 Rank | Airline Group | Country | Revenue | Net Income | Assets | Market Cap |
Employees |
---|---|---|---|---|---|---|---|
(US$ billions) | |||||||
1 ![]() |
Delta Air Lines | ![]() |
61.6 | 3.5 | 75.3 | 39 | 103,000[8] |
2 ![]() |
United Airlines | ![]() |
57.1 | 3.1 | 74.1 | 32 | 107,300[4] |
3 ![]() |
American Airlines Group | ![]() |
54.2 | 1.3 | 68.8 | 11 | 133,300[9] |
4 ![]() |
Lufthansa Group | ![]() |
40.4 | 1.5 | 51.1 | 9 | 98,739 |
5 ![]() |
Air France–KLM | ![]() ![]() |
36.2 | 0.69 | 37.5 | 2.4 | 76,566[10] |
6 ![]() |
International Airlines Group | ![]() ![]() |
34.2 | 2.9 | 41.6 | 21 | 71,794 |
7 ![]() |
Southwest Airlines | ![]() |
27.5 | 0.47 | 33.8 | 17 | 72,450[11] |
8 ![]() |
China Southern Airlines | ![]() |
24.5 | –0.59 | 43.7 | 13 | 97,899 |
9 ![]() |
Air China | ![]() |
23.0 | 1.6 | 22.0 | 17 | 87,190 |
10 ![]() |
Turkish Airlines | ![]() |
22.5 | 6.8 | 35.6 | 12 | 57,991 |
Note that Emirates is a state-owned company, and is thus not included in this list of public companies. Its 2024 revenue was estimated to be around $37.4B or 5th place. Qatar Airways Group is similarly privately held with its 2024 revenue of around $22.2B or 10th place (with Emirates included).
Brand value
2025 Rank[12] | Airline | Country | $bn | Year-to-year change |
---|---|---|---|---|
1 ![]() |
Delta Air Lines | ![]() |
14.9 | +38.3% |
2 ![]() |
United Airlines | ![]() |
12.3 | +41.8% |
3 ![]() |
American Airlines | ![]() |
11.7 | +14.2% |
4 ![]() |
Emirates | ![]() |
8.4 | +27.1% |
5 ![]() |
Southwest Airlines | ![]() |
6.3 | +16.8% |
6 ![]() |
British Airways | ![]() |
4.6 | +44.9% |
7 ![]() |
China Southern Airlines | ![]() |
4.1 | +48.2% |
8 ![]() |
Qatar Airways | ![]() |
3.9 | +24.3% |
9 ![]() |
Air Canada | ![]() |
3.2 | +14.1% |
10 ![]() |
China Eastern | ![]() |
3.2 | +25.9% |
Capacity
Airlines by available seat miles (ASMs)
Numbers are listed in billions of ASMs.
Rank | Airline | Country | 2024 | 2023 | 2022 | 2021 | 2020 | 2019 | Ref |
---|---|---|---|---|---|---|---|---|---|
1 | United Airlines | ![]() |
311 | 291 | 248 | 179 | 123 | 285 | [4] |
2 | American Airlines | ![]() |
293 | 278 | 260 | 215 | 143 | 285 | [13] |
3 | Delta Air Lines | ![]() |
288 | 272 | 233 | 194 | 134 | 275 | [8] |
4 | Emirates | ![]() |
222 | 230 | 177 | 99 | 40 | 228 | [14] |
5 | Southwest Airlines | ![]() |
178 | 170 | 148 | 132 | 103 | 157 | [15] |
6 | Qatar Airways | ![]() |
159 | 157 | 131 | 100 | 58 | 149 | [16] |
7 | Ryanair | ![]() |
159 | 152 | 138 | 91 | 30 | 118 | [17] |
8 | China Southern Airlines | ![]() |
151 | 197 | 96 | 133 | 134 | 214 | [18] |
9 | Turkish Airlines | ![]() |
145 | 146 | 124 | 80 | 47 | 117 | [19] |
10 | China Eastern Airlines | ![]() |
138 | 114 | 60 | 100 | 95 | 168 | [20] |
Airline groups by available seat kilometers (ASKs)
Numbers are listed in billions of ASKs.
Rank | Airline Group | Country | 2022 | 2021 | 2020 | 2019 |
---|---|---|---|---|---|---|
1 | American Airlines Group | ![]() |
347 | 259 | 147 | 388 |
2 | United Airlines Holdings | ![]() |
332 | 207 | 118 | 385 |
3 | Delta Air Lines Group | ![]() |
314 | 216 | 118 | 382 |
4 | Air France–KLM | ![]() ![]() |
237 | 116 | 81 | 275 |
5 | Emirates | ![]() |
225 | 93 #11 |
78 | 298 |
6 | International Airlines Group | ![]() ![]() |
215 | 78 #15 |
72 | 285 |
7 | Lufthansa Group | ![]() |
207 | 89 #13 |
69 | 296 |
8 | Southwest Airlines | ![]() |
199 | 166 | 87 | 211 #11 |
9 | Turkish Airlines | ![]() |
162 | 86 #14 |
153 #15 | |
10 | Qatar Airways | ![]() |
154 | 172 #13 | ||
Sources | [21] | [22][23] | [24] | [25] |
Airline groups by passengers (millions)
Rank | Airline Group | Country | 2023 | 2022 | 2021 | 2020 | 2019 | 2018 |
---|---|---|---|---|---|---|---|---|
1 | American Airlines Group | ![]() |
211 | 199 | 124 | 95 | 215 | 203 |
2 | Delta Air Lines | ![]() |
190 | 175 | 123 | 80 | 204 | 192 |
3 | Ryanair | ![]() |
182 | 168 | 97 | 52 | 148 | 142 |
4 | United Airlines Holdings | ![]() |
165 | 144 | 73 | 57 | 162 | 158 |
5 | Southwest Airlines | ![]() |
137 | 157 | 123 | 67 | 162 | 163 |
6 | Lufthansa Group | ![]() |
123 | 101 | 24 | 36 | 145 | 142 |
7 | Air France–KLM | ![]() ![]() |
118 | 83 | 28 #14 |
85 #12 | ||
8 | International Airlines Group | ![]() ![]() |
115 | 95 | 31 #12 |
118 | 112 | |
9 | IndiGo | ![]() |
105 | 75 | 48 | 35 #11 |
61 #16 | |
10 | Turkish Airlines | ![]() |
83 | 72 | 45 | 28 #17= |
75 #14 | |
Sources | [21] | [26] | [24] | [27] | [28] |
Freight (millions of CTK)
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Rank[29] | Airline | Country | 2023 | 2022 | 2021 | 2020 | 2019 | 2018 |
---|---|---|---|---|---|---|---|---|
1 | FedEx Express | ![]() |
17,923 | 19,547 | 20,660 | 19,656 | 17,503 | 17,499 |
2 | Qatar Airways Cargo | ![]() |
14,406 | 14,267 | 16,102 | 13,740 | 13,024 | 12,695 |
3 | UPS Airlines | ![]() |
14,239 | 15,889 | 15,529 | 14,371 | 12,842 | 12,459 |
4 | Emirates SkyCargo | ![]() |
10,636 | 10,153 | 11,842 | 9,569 | 12,052 | 12,713 |
5 | Atlas Air | ![]() |
8,915 | 8,675 | 8,441 | 5,458 #12 | 4,522 #16 | 4,553 #16 |
6 | Korean Air Cargo | ![]() |
8,411 | 9,518 | 10,429 | 8,104 | 7,412 | 7,839 |
7 | Turkish Cargo | ![]() |
8,325 | 8,318 | 9,223 | 6,977 | 7,029 | 5,890 |
8 | Cathay Cargo | ![]() |
8,099 | 5,774 #13 | 8,215 | 8,137 | 10,930 | 11,284 |
9 | China Southern Airlines Cargo | ![]() |
7,610 | 6,915 | 8,078 | 6,591 | 6,825 | 6,597 |
10 | Cargolux | ![]() |
6,807 | 7,971 | 8,587 | 7,345 | 7,180 | 7,322 |
Fleet size
Aircraft operated (June 2025)

Rank | Airline | Country | No. | Ref. |
---|---|---|---|---|
1 | United Airlines | ![]() |
1,037 | [30] |
2 | American Airlines | ![]() |
992 | [8] |
3 | Delta Air Lines | ![]() |
986 | [31] |
4 | China Southern Airlines | ![]() |
850 | [32] |
5 | Southwest Airlines | ![]() |
801 | [15] |
6 | China Eastern Airlines | ![]() |
800 | [33] |
7 | Ryanair | ![]() |
624 | [34] |
8 | SkyWest Airlines | ![]() |
579 | |
9 | Air China | ![]() |
500 | [35] |
10 | Turkish Airlines | ![]() |
493 | [36] |
Aircraft owned (January 2025)
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Rank | Holding company | No. | Value ($bn) |
---|---|---|---|
1 | United Airlines Holdings | 1,026 ![]() |
17.9 ![]() |
2 | Delta Air Lines, Inc. | 1,007 ![]() |
15.8 ![]() |
3 | Air China Group | 907 ![]() |
19.0 ![]() |
4 | American Airlines Group | 746 ![]() |
16.7 ![]() |
5 | Lufthansa Group | 721 ![]() |
11.7 ![]() |
6 | Southwest Airlines | 697 ![]() |
15.9 ![]() |
7 | China Southern Airlines | 663 ![]() |
17.3 ![]() |
8 | China Eastern Airlines | 652 ![]() |
18.5 ![]() |
9 | Ryanair Holdings | 607 ![]() |
15.3 ![]() |
10 | Air France-KLM Group | 572 ![]() |
10.7 ![]() |
11 | IAG | 570 ![]() |
10.4 ![]() |
12 | SkyWest, Inc. | 520 ![]() |
4.5 ![]() |
Network
Destinations served (March 2025)

Rank | Airline | Country | No. |
---|---|---|---|
1 | United Airlines | ![]() |
381[37] |
2 | American Airlines | ![]() |
356 |
3 | Delta Air Lines | ![]() |
311 |
4 | Turkish Airlines | ![]() |
286 |
5 | Ryanair | ![]() |
239 |
6 | China Southern Airlines | ![]() |
235 |
7 | China Eastern Airlines | ![]() |
224 |
8 | Lufthansa | ![]() |
214 |
9 | British Airways | ![]() |
213 |
10 | Air France | ![]() |
196 |
Countries served (June 2025)
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Rank | Airline | Country | No. | Ref. |
---|---|---|---|---|
1 | Turkish Airlines | ![]() |
124 | [38] |
2 | Qatar Airways | ![]() |
92 | [39] |
3 | Ethiopian Airlines | ![]() |
87 | [40] |
4 | Air France | ![]() |
86 | [41] |
5 | Emirates | ![]() |
80 | [42] |
=6 | United Airlines | ![]() |
77 | [43] |
=6 | British Airways | ![]() |
77 | [44] |
8 | Lufthansa | ![]() |
75 | [45] |
9 | KLM | ![]() |
66 | [46] |
10 | American Airlines | ![]() |
61 | [47] |
Flights daily (March 2025)
Rank[48] | Airline | Country | No. |
---|---|---|---|
1 | American Airlines | ![]() |
5,946 |
2 | Delta Air Lines | ![]() |
4,343 |
3 | United Airlines | ![]() |
4,167 |
4 | Southwest Airlines | ![]() |
3,592 |
5 | Ryanair | ![]() |
2,584 |
6 | China Eastern Airlines | ![]() |
2,506 |
7 | IndiGo | ![]() |
2,244 |
8 | China Southern Airlines | ![]() |
2,125 |
9 | Air China | ![]() |
1,659 |
10 | easyJet | ![]() |
1,298 |
Routes served (March 2025)

Rank | Airline | Country | No. | Ref. |
---|---|---|---|---|
1 | Southwest Airlines | ![]() |
2,831 | [49] |
2 | Ryanair | ![]() |
2,611 | [50] |
3 | American Airlines | ![]() |
1,250 | [51] |
4 | China Eastern Airlines | ![]() |
1,038 | [52] |
5 | United Airlines | ![]() |
1,120 | [37] |
6 | Delta Air Lines | ![]() |
1,042 | [53] |
7 | China Southern Airlines | ![]() |
814 | [54] |
8 | Air China | ![]() |
631 | [55] |
9 | IndiGo | ![]() |
610 | |
10 | Turkish Airlines | ![]() |
401 | [56] |
See also
- Flag carrier
- List of largest airlines in North America
- List of largest airlines in Europe
- List of largest airlines in Central America and the Caribbean
- List of largest airlines in Africa
- List of largest airlines in Asia
- List of largest airlines in South America
- List of largest airlines in Oceania
- List of airline holding companies
- List of the busiest airports in Africa
- List of the busiest airports in Asia
- List of the busiest airports in Europe
- List of the busiest airports in Latin America
- List of the busiest airports
- List of busiest airports by passenger traffic
- List of busiest airports by aircraft movements
- List of busiest passenger air routes
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