Alaska Airlines is the most reliable airline on the PDX to BWI route with a 95% on-time rate, compared to Southwest Airlines at 80%. Based on 80 flights tracked.
Source: Bureau of Transportation Statistics. Updated October 2026.Best Airline: PDX to BWI
Portland to Baltimore — airline reliability comparison
On-Time Rate by Airline
Alaska Airlines95%
Spirit Airlines84%
Southwest Airlines80%
PDX to BWI Airline Comparison
| Airline | On-Time % | Cancel % | Avg Delay | Flights |
|---|---|---|---|---|
| Alaska AirlinesASBest | 95% | 0.0% | 29m | 80 |
| Spirit AirlinesNK | 84% | 3.6% | 93m | 129 |
| Southwest AirlinesWNWorst | 80% | 0.0% | 42m | 176 |
Route Overview
84%
Overall On-Time
62m
Avg Delay
1.3%
Cancel Rate
385
Total Flights
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Data last updated October 2026. Source: Bureau of Transportation Statistics.