Spirit Airlines is the most reliable airline on the SAN to PDX route with a 88% on-time rate, compared to Southwest Airlines at 62%. Based on 113 flights tracked.
Source: Bureau of Transportation Statistics. Updated October 2026.Best Airline: SAN to PDX
San Diego to Portland — airline reliability comparison
On-Time Rate by Airline
Spirit Airlines88%
Alaska Airlines84%
SkyWest Airlines84%
Southwest Airlines62%
SAN to PDX Airline Comparison
| Airline | On-Time % | Cancel % | Avg Delay | Flights |
|---|---|---|---|---|
| Spirit AirlinesNKBest | 88% | 2.4% | 39m | 113 |
| Alaska AirlinesAS | 84% | 1.6% | 53m | 5,450 |
| SkyWest AirlinesOO | 84% | 0.0% | 59m | 200 |
| Southwest AirlinesWNWorst | 62% | 0.0% | 38m | 149 |
Route Overview
84%
Overall On-Time
52m
Avg Delay
1.5%
Cancel Rate
6,081
Total Flights
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Data last updated October 2026. Source: Bureau of Transportation Statistics.