Austin to San Francisco — airline reliability comparison
United Airlines is the most reliable airline on the AUS to SFO route with a 80% on-time rate, compared to Southwest Airlines at 65%. Based on 5,131 flights tracked.
This route involves high-congestion airports, which can affect reliability regardless of airline.
Source: Bureau of Transportation Statistics. Updated October 2026.| Airline | On-Time % | Cancel % | Avg Delay | Flights |
|---|---|---|---|---|
| United AirlinesUABest | 80% | 1.1% | 82m | 5,131 |
| Alaska AirlinesAS | 76% | 1.8% | 56m | 2,054 |
| Delta Air LinesDL | 68% | 1.0% | 72m | 528 |
| SkyWest AirlinesOO | 66% | 0.0% | 102m | 90 |
| Southwest AirlinesWNWorst | 65% | 0.5% | 53m | 398 |
Delays, TSA, weather, gates — we'll let you know if something matters.
Data last updated October 2026. Source: Bureau of Transportation Statistics.