SkyWest Airlines is the most reliable airline on the IAH to DCA route with a 80% on-time rate, compared to PSA Airlines at 66%. Based on 139 flights tracked.
Source: Bureau of Transportation Statistics. Updated October 2026.Best Airline: IAH to DCA
Houston to Washington — airline reliability comparison
On-Time Rate by Airline
SkyWest Airlines80%
United Airlines77%
Republic Airways77%
PSA Airlines66%
IAH to DCA Airline Comparison
| Airline | On-Time % | Cancel % | Avg Delay | Flights |
|---|---|---|---|---|
| SkyWest AirlinesOOBest | 80% | 2.1% | 66m | 139 |
| United AirlinesUA | 77% | 1.4% | 69m | 7,837 |
| Republic AirwaysYX | 77% | 4.4% | 64m | 513 |
| PSA AirlinesOHWorst | 66% | 7.6% | 97m | 357 |
Route Overview
77%
Overall On-Time
71m
Avg Delay
1.7%
Cancel Rate
8,861
Total Flights
Flying out of IAH? We'll brief you.
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Data last updated October 2026. Source: Bureau of Transportation Statistics.