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April 2022
Atlanta's Hartsfield-Jackson International is widely known as the world's busiest airport, and as one might expect, it also tops the list of airports ranked by number of gates. However the rankings by gates don't necessarily correspond to airport passenger counts. For example, Washington-Dulles, which was built to handle much larger passenger totals than it has ever achieved, ranks 7 in terms of gates but 25th in terms of passengers.
| Airport Name | Number of Gates | Largest Hub Airline | Hub Market Share | |
| 1. | Hartsfield-Jackson Atlanta International (ATL) | 195 | Delta | 80% |
| 2. | Chicago-O'Hare International (ORD) | 191 | United | 49% |
| 3. | Dallas-Ft. Worth International (DFW) | 184 | American | 86% |
| 4. | George Bush Intercontinental/Houston (IAH) | 161 | United | 72% |
| 5. | Denver International (DEN) | 146 | United | 44% |
| 6. | Los Angeles International (LAX) | 146 | American | 20% |
| 7. | Washington-Dulles International (IAD) | 135 | United | 75% |
| 8. | John F. Kennedy International (JFK) | 131 | American | 17% |
| 8. | Miami International (MIA) | 131 | American | 63% |
| 9. | Orlando International (MCO) | 129 | Southwest | 24% |
| 10. | Philadelphia International (PHL) | 126 | American | 67% |
| 11. | Newark-Liberty International (EWR) | 121 | United | 47% |
| 12. | Charlotte Douglas International (CLT) | 115 | American | 91% |
| 13. | San Francisco International (SFO) | 115 | United | 48% |
| 14. | Las Vegas Harry Reid International (LAS) | 110 | Southwest | 40% |
| 15. | Phoenix Sky Harbor (PHX) | 106 | Southwest | 35% |
| 16. | Seattle-Tacoma International (SEA) | 103 | Alaska | 52% |
| 17. | Boston-Logan International (BOS) | 94 | Delta | 35% |
| 18. | St. Louis Lambert International (STL) | 86 | Southwest | 61% |
| 19. | Baltimore/Washington International Thurgood Marshall (BWI) | 73 | Southwest | 72% |
| 20. | LaGuardia (LGA) | 71 | American | 27% |
Figures are based on latest information provided by airports or airport authorities.
