Alaska Airlines is the most reliable airline on the BWI to PDX route with a 86% on-time rate, compared to Southwest Airlines at 73%. Based on 80 flights tracked.
Source: Bureau of Transportation Statistics. Updated October 2026.Best Airline: BWI to PDX
Baltimore to Portland — airline reliability comparison
On-Time Rate by Airline
Alaska Airlines86%
Spirit Airlines77%
Southwest Airlines73%
BWI to PDX Airline Comparison
| Airline | On-Time % | Cancel % | Avg Delay | Flights |
|---|---|---|---|---|
| Alaska AirlinesASBest | 86% | 0.0% | 70m | 80 |
| Spirit AirlinesNK | 77% | 1.9% | 81m | 128 |
| Southwest AirlinesWNWorst | 73% | 1.1% | 58m | 176 |
Route Overview
76%
Overall On-Time
70m
Avg Delay
1.3%
Cancel Rate
384
Total Flights
Flying out of BWI? We'll brief you.
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Data last updated October 2026. Source: Bureau of Transportation Statistics.