Airlines at San Antonio International Airport (SAT)
San Antonio, Texas KSAT #44 US airport by passengers
Airlines operating at SAT, ranked by number of departures.
On-time performance at SAT
Based on 10,349 departures from May 2026 to July 2026. A flight counts as late when it leaves 15 or more minutes after schedule.
24.9%Departures late
29.7%Arrivals late
1.29%Cancelled
19.8 minAverage departure delay
| Airline | Departures | Late |
|---|---|---|
| Southwest Airlines | 3,962 | 32.1% |
| American Airlines | 1,864 | 24.6% |
| Delta Air Lines | 1,816 | 17.5% |
| United Airlines | 1,406 | 15.6% |
| Envoy Air | 529 | 24.8% |
| SkyWest Airlines | 392 | 15.6% |
| Frontier Airlines | 204 | 33.3% |
| Alaska Airlines | 171 | 24.6% |
Source: Bureau of Transportation Statistics, On-Time Performance of reporting carriers. Smaller regional carriers and some airlines are not included.
Airline presence
Terminal A serves most of the airlines, including Alaska, Delta, Frontier, Southwest and Sun Country, according to a third-party guide. Check the airport site for current service.