SkyWest Airlines is the most reliable airline on the SAN to STS route with a 80% on-time rate, compared to Southwest Airlines at 70%. Based on 2,476 flights tracked.
Source: Bureau of Transportation Statistics. Updated October 2026.Best Airline: SAN to STS
San Diego to Santa Rosa — airline reliability comparison
On-Time Rate by Airline
SkyWest Airlines80%
Alaska Airlines71%
Southwest Airlines70%
SAN to STS Airline Comparison
| Airline | On-Time % | Cancel % | Avg Delay | Flights |
|---|---|---|---|---|
| SkyWest AirlinesOOBest | 80% | 1.8% | 51m | 2,476 |
| Alaska AirlinesAS | 71% | 0.0% | 37m | 32 |
| Southwest AirlinesWNWorst | 70% | 1.6% | 45m | 182 |
Route Overview
79%
Overall On-Time
49m
Avg Delay
2%
Cancel Rate
2,690
Total Flights
Flying out of SAN? We'll brief you.
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Data last updated October 2026. Source: Bureau of Transportation Statistics.