Alaska Airlines is the most reliable airline on the MIA to PDX route with a 78% on-time rate, compared to American Airlines at 61%. Based on 424 flights tracked.
Source: Bureau of Transportation Statistics. Updated October 2026.Best Airline: MIA to PDX
Miami to Portland — airline reliability comparison
On-Time Rate by Airline
Alaska Airlines78%
American Airlines61%
MIA to PDX Airline Comparison
| Airline | On-Time % | Cancel % | Avg Delay | Flights |
|---|---|---|---|---|
| Alaska AirlinesASBest | 78% | 3.3% | 81m | 424 |
| American AirlinesAAWorst | 61% | 0.8% | 77m | 665 |
Route Overview
67%
Overall On-Time
78m
Avg Delay
2%
Cancel Rate
1,106
Total Flights
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Data last updated October 2026. Source: Bureau of Transportation Statistics.