Alaska Airlines is the most reliable airline on the STS to SAN route with a 90% on-time rate, compared to SkyWest Airlines at 76%. Based on 32 flights tracked.
Source: Bureau of Transportation Statistics. Updated October 2026.Best Airline: STS to SAN
Santa Rosa to San Diego — airline reliability comparison
On-Time Rate by Airline
Alaska Airlines90%
Southwest Airlines77%
SkyWest Airlines76%
STS to SAN Airline Comparison
| Airline | On-Time % | Cancel % | Avg Delay | Flights |
|---|---|---|---|---|
| Alaska AirlinesASBest | 90% | 0.0% | 63m | 32 |
| Southwest AirlinesWN | 77% | 0.5% | 66m | 181 |
| SkyWest AirlinesOOWorst | 76% | 1.9% | 55m | 2,470 |
Route Overview
76%
Overall On-Time
56m
Avg Delay
1.9%
Cancel Rate
2,683
Total Flights
Flying out of STS? We'll brief you.
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Data last updated October 2026. Source: Bureau of Transportation Statistics.