Alaska Airlines is the most reliable airline on the SJC to PDX route with a 93% on-time rate, compared to Southwest Airlines at 83%. Based on 684 flights tracked.
Source: Bureau of Transportation Statistics. Updated October 2026.Best Airline: SJC to PDX
San Jose to Portland — airline reliability comparison
On-Time Rate by Airline
Alaska Airlines93%
SkyWest Airlines91%
Spirit Airlines84%
Southwest Airlines83%
SJC to PDX Airline Comparison
| Airline | On-Time % | Cancel % | Avg Delay | Flights |
|---|---|---|---|---|
| Alaska AirlinesASBest | 93% | 0.3% | 54m | 684 |
| SkyWest AirlinesOO | 91% | 0.2% | 66m | 2,242 |
| Spirit AirlinesNK | 84% | 0.8% | 60m | 109 |
| Southwest AirlinesWNWorst | 83% | 0.3% | 51m | 4,750 |
Route Overview
86%
Overall On-Time
54m
Avg Delay
0.4%
Cancel Rate
7,812
Total Flights
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Data last updated October 2026. Source: Bureau of Transportation Statistics.