Southwest Airlines is the most reliable airline on the DCA to DAL route with a 77% on-time rate. Based on 6,141 flights tracked.
Source: Bureau of Transportation Statistics. Updated October 2026.Best Airline: DCA to DAL
Washington to Dallas — airline reliability comparison
On-Time Rate by Airline
Southwest Airlines77%
DCA to DAL Airline Comparison
| Airline | On-Time % | Cancel % | Avg Delay | Flights |
|---|---|---|---|---|
| Southwest AirlinesWNBest | 77% | 1.9% | 60m | 6,141 |
Route Overview
77%
Overall On-Time
61m
Avg Delay
1.9%
Cancel Rate
6,141
Total Flights
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Data last updated October 2026. Source: Bureau of Transportation Statistics.