Flight Check

Best Airline: DFW to IAD

Dallas to Washington — airline reliability comparison

Frontier Airlines is the most reliable airline on the DFW to IAD route with a 85% on-time rate, compared to American Airlines at 70%. Based on 195 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

Frontier Airlines85%
United Airlines83%
American Airlines70%

DFW to IAD Airline Comparison

AirlineOn-Time %Cancel %Avg DelayFlights
Frontier AirlinesF9Best85%1.3%69m195
United AirlinesUA83%1.5%83m3,439
American AirlinesAAWorst70%2.3%64m2,806

Route Overview

77%
Overall On-Time
72m
Avg Delay
1.8%
Cancel Rate
6,469
Total Flights
DFW to IAD Route DetailsReturn: IAD to DFW
DFW AirportIAD Airport

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