Flight Check

Best Airline: LAS to DCA

Las Vegas to Washington — airline reliability comparison

American Airlines is the most reliable airline on the LAS to DCA route with a 77% on-time rate, compared to Southwest Airlines at 71%. Based on 1,307 flights tracked.

This route involves high-congestion airports, which can affect reliability regardless of airline.

Source: Bureau of Transportation Statistics. Updated October 2026.

On-Time Rate by Airline

American Airlines77%
Southwest Airlines71%

LAS to DCA Airline Comparison

AirlineOn-Time %Cancel %Avg DelayFlights
American AirlinesAABest77%0.8%96m1,307
Southwest AirlinesWNWorst71%0.4%39m524

Route Overview

76%
Overall On-Time
80m
Avg Delay
0.7%
Cancel Rate
1,831
Total Flights
LAS to DCA Route DetailsReturn: DCA to LAS
LAS AirportDCA Airport

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Data last updated October 2026. Source: Bureau of Transportation Statistics.