Alaska Airlines is the most reliable airline on the BOI to SAN route with a 86% on-time rate, compared to Southwest Airlines at 78%. Based on 395 flights tracked.
Source: Bureau of Transportation Statistics. Updated October 2026.Best Airline: BOI to SAN
Boise to San Diego — airline reliability comparison
On-Time Rate by Airline
Alaska Airlines86%
SkyWest Airlines85%
Southwest Airlines78%
BOI to SAN Airline Comparison
| Airline | On-Time % | Cancel % | Avg Delay | Flights |
|---|---|---|---|---|
| Alaska AirlinesASBest | 86% | 0.9% | 37m | 395 |
| SkyWest AirlinesOO | 85% | 0.6% | 52m | 1,507 |
| Southwest AirlinesWNWorst | 78% | 0.4% | 55m | 605 |
Route Overview
83%
Overall On-Time
52m
Avg Delay
0.6%
Cancel Rate
2,627
Total Flights
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Data last updated October 2026. Source: Bureau of Transportation Statistics.