United Airlines is the most reliable airline on the IAH to PDX route with a 80% on-time rate, compared to Alaska Airlines at 79%. Based on 3,087 flights tracked.
Source: Bureau of Transportation Statistics. Updated October 2026.Best Airline: IAH to PDX
Houston to Portland — airline reliability comparison
On-Time Rate by Airline
United Airlines80%
Alaska Airlines79%
IAH to PDX Airline Comparison
| Airline | On-Time % | Cancel % | Avg Delay | Flights |
|---|---|---|---|---|
| United AirlinesUABest | 80% | 0.8% | 66m | 3,087 |
| Alaska AirlinesASWorst | 79% | 0.9% | 69m | 431 |
Route Overview
79%
Overall On-Time
66m
Avg Delay
0.9%
Cancel Rate
3,518
Total Flights
Flying out of IAH? We'll brief you.
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Data last updated October 2026. Source: Bureau of Transportation Statistics.