Commercial air passenger traffic in South Asia is dominated by Indian carriers. All top 5 regional airlines are from India, including 4 low-costers and national flag carrier. Among 42 South Asian airlines there are 15 companies from India, 11 from Iran, 4 from Bangladesh, 3 from Pakistan and Afghanistan, 2 from Nepal and Maldives, and 1 from Sri Lanka and Butan. Biggest non-Indian carriers are Sri Lankan Airlines, Pakistan International Airlines and Mahan Air.
| Rank | RankWorld | NatRank | Air carrier | State | Passengers carried | Passsenger-km performed (x1000) |
| 1 | 15 | 1 | INDIGO | INDIA | 49 197 923 | 52 503 026 |
| 2 | 35 | 2 | JET AIRWAYS | INDIA | 26 351 866 | 44 756 306 |
| 3 | 50 | 3 | AIR INDIA | INDIA | 20 722 644 | 44 729 323 |
| 4 | 60 | 4 | SPICEJET | INDIA | 17 304 483 | 17 503 999 |
| 5 | 105 | 5 | GO AIRLINES | INDIA | 10 013 586 | 9 455 346 |
| 6 | 161 | 1 | SRILANKAN AIRLINES | SRI LANKA | 5 403 577 | 14 168 546 |
| 7 | 162 | 1 | PIA | PAKISTAN | 5 347 734 | 13 990 972 |
| 8 | 172 | 1 | MAHAN AIR | IRAN (ISLAMIC REPUBLIC OF) | 4 928 666 | 9 176 628 |
| 9 | 187 | 6 | AirAsia India | INDIA | 4 322 853 | 4 162 740 |
| 10 | 196 | 7 | VISTARA | INDIA | 4 064 756 | 4 614 116 |
| 11 | 203 | 8 | AIR INDIA EXPRESS | INDIA | 3 791 826 | 9 796 382 |
| 12 | 205 | 2 | IRAN ASSEMAN AIRLINE | IRAN (ISLAMIC REPUBLIC OF) | 3 750 136 | 2 752 002 |
| 13 | 212 | 3 | IRAN AIR | IRAN (ISLAMIC REPUBLIC OF) | 3 446 541 | 3 720 739 |
| 14 | 237 | 9 | JET LITE | INDIA | 2 764 876 | 2 301 323 |
| 15 | 239 | 2 | SHAHEEN AIR INTL | PAKISTAN | 2 736 509 | 6 323 301 |
| 16 | 257 | 1 | BANGLADESH BIMAN | BANGLADESH | 2 328 104 | 6 759 113 |
| 17 | 259 | 4 | ATA AIRL. | IRAN (ISLAMIC REPUBLIC OF) | 2 320 856 | 1 848 764 |
| 18 | 261 | 5 | ZAGROS AIRLINES | IRAN (ISLAMIC REPUBLIC OF) | 2 173 332 | 1 854 887 |
| 19 | 276 | 3 | AIRBLUE | PAKISTAN | 1 841 604 | 4 291 344 |
| 20 | 301 | 6 | KISH AIR | IRAN (ISLAMIC REPUBLIC OF) | 1 432 480 | 1 283 978 |
| 21 | 308 | 7 | TABAN AIR | IRAN (ISLAMIC REPUBLIC OF) | 1 323 341 | 1 883 641 |
| 22 | 327 | 1 | MALDIVIAN | MALDIVES | 1 147 247 | 730 630 |
| 23 | 338 | 10 | ALLIANCE AIR | INDIA | 1 033 095 | 461 968 |
| 24 | 345 | 1 | KAM AIR | AFGHANISTAN | 952 600 | 440 758 |
| 25 | 360 | 8 | CASPIAN AIRLINES | IRAN (ISLAMIC REPUBLIC OF) | 774 196 | 589 441 |
| 26 | 363 | 2 | ARIANA AFGHAN | AFGHANISTAN | 749 391 | 994 539 |
| 27 | 369 | 2 | US-BANGLA AIRLINES | BANGLADESH | 672 778 | 151 102 |
| 28 | 424 | 11 | TruJet | INDIA | 481 003 | 201 615 |
| 29 | 428 | 3 | NOVOAIR | BANGLADESH | 470 714 | 114 201 |
| 30 | 433 | 1 | NEPAL AIRLINES | NEPAL | 452 734 | 761 735 |
| 31 | 436 | 9 | NAFT AIR LINES | IRAN (ISLAMIC REPUBLIC OF) | 439 725 | 246 835 |
| 32 | 460 | 2 | FLYME | MALDIVES | 338 505 | 38 059 |
| 33 | 465 | 2 | YETI AIRLINES | NEPAL | 327 162 | 91 721 |
| 34 | 471 | 4 | REGENT AIRWAYS | BANGLADESH | 313 913 | 351 670 |
| 35 | 480 | 1 | DRUK-AIR | BHUTAN | 293 348 | 575 173 |
| 36 | 484 | 10 | IRANAIR TOURS | IRAN (ISLAMIC REPUBLIC OF) | 287 237 | 393 449 |
| 37 | 521 | 3 | SAFI AIRWAYS | AFGHANISTAN | 156 567 | 282 707 |
| 38 | 536 | 11 | QESHM AIR | IRAN (ISLAMIC REPUBLIC OF) | 129 635 | 32 751 |
| 39 | 562 | 12 | Air Costa | INDIA | 84 326 | 76 317 |
| 40 | 612 | 13 | Air Carnival | INDIA | 38 648 | 16 012 |
| 41 | 626 | 14 | ZOOM AIR | INDIA | 23 622 | 24 887 |
| 42 | 711 | 15 | AIR DECCAN | INDIA | 252 | 85 |
| South Asia Total | 184 734 391 | 264 452 131 |
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