Southwest Airlines is the most reliable airline on the DAL to DCA route with a 73% on-time rate. Based on 6,141 flights tracked.
Source: Bureau of Transportation Statistics. Updated October 2026.Best Airline: DAL to DCA
Dallas to Washington — airline reliability comparison
On-Time Rate by Airline
Southwest Airlines73%
DAL to DCA Airline Comparison
| Airline | On-Time % | Cancel % | Avg Delay | Flights |
|---|---|---|---|---|
| Southwest AirlinesWNBest | 73% | 1.7% | 59m | 6,141 |
Route Overview
73%
Overall On-Time
59m
Avg Delay
1.7%
Cancel Rate
6,141
Total Flights
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Data last updated October 2026. Source: Bureau of Transportation Statistics.