Airlines at San Francisco International Airport (SFO)
San Francisco, California KSFO #10 US airport by passengers
Airlines operating at SFO, ranked by number of departures.
On-time performance at SFO
Based on 40,370 departures from May 2026 to July 2026. A flight counts as late when it leaves 15 or more minutes after schedule.
34.2%Departures late
47.5%Arrivals late
0.93%Cancelled
23.9 minAverage departure delay
| Airline | Departures | Late |
|---|---|---|
| United Airlines | 17,252 | 28.0% |
| SkyWest Airlines | 7,638 | 38.5% |
| Delta Air Lines | 3,819 | 34.3% |
| American Airlines | 3,430 | 34.4% |
| Alaska Airlines | 2,986 | 29.2% |
| Southwest Airlines | 2,822 | 61.1% |
| JetBlue Airways | 1,276 | 30.1% |
| Frontier Airlines | 1,147 | 49.8% |
Source: Bureau of Transportation Statistics, On-Time Performance of reporting carriers. Smaller regional carriers and some airlines are not included.
Airline presence
United Airlines operates its main West Coast hub here. Alaska, Delta, American and many Asian and European airlines also fly to SFO.