Southwest Airlines is the most reliable airline on the HOU to SEA route with a 64% on-time rate. Based on 176 flights tracked.
Source: Bureau of Transportation Statistics. Updated October 2026.Best Airline: HOU to SEA
Houston to Seattle — airline reliability comparison
On-Time Rate by Airline
Southwest Airlines64%
HOU to SEA Airline Comparison
| Airline | On-Time % | Cancel % | Avg Delay | Flights |
|---|---|---|---|---|
| Southwest AirlinesWNBest | 64% | 0.0% | 54m | 176 |
Route Overview
64%
Overall On-Time
54m
Avg Delay
0%
Cancel Rate
176
Total Flights
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Data last updated October 2026. Source: Bureau of Transportation Statistics.