Alaska Airlines is the most reliable airline on the GEG to SAN route with a 91% on-time rate, compared to Southwest Airlines at 57%. Based on 1,151 flights tracked.
Source: Bureau of Transportation Statistics. Updated October 2026.Best Airline: GEG to SAN
Spokane to San Diego — airline reliability comparison
On-Time Rate by Airline
Alaska Airlines91%
SkyWest Airlines81%
Southwest Airlines57%
GEG to SAN Airline Comparison
| Airline | On-Time % | Cancel % | Avg Delay | Flights |
|---|---|---|---|---|
| Alaska AirlinesASBest | 91% | 0.7% | 54m | 1,151 |
| SkyWest AirlinesOO | 81% | 0.0% | 41m | 69 |
| Southwest AirlinesWNWorst | 57% | 0.0% | 40m | 42 |
Route Overview
90%
Overall On-Time
54m
Avg Delay
0.7%
Cancel Rate
1,291
Total Flights
Flying out of GEG? We'll brief you.
Delays, TSA, weather, gates — we'll let you know if something matters.
Data last updated October 2026. Source: Bureau of Transportation Statistics.