Flight Check

Best Airline: IAD to DTW

Washington to Detroit — airline reliability comparison

Delta Air Lines is the most reliable airline on the IAD to DTW route with a 88% on-time rate, compared to Republic Airways at 79%. Based on 431 flights tracked.

This route involves weather-prone airports, which can affect reliability regardless of airline.

Source: Bureau of Transportation Statistics. Updated October 2026.

On-Time Rate by Airline

Delta Air Lines88%
United Airlines85%
Endeavor Air83%
SkyWest Airlines81%
Republic Airways79%

IAD to DTW Airline Comparison

AirlineOn-Time %Cancel %Avg DelayFlights
Delta Air LinesDLBest88%0.8%73m431
United AirlinesUA85%0.0%47m60
Endeavor Air9E83%0.0%66m184
SkyWest AirlinesOO81%0.8%108m3,416
Republic AirwaysYXWorst79%0.8%97m334

Route Overview

82%
Overall On-Time
99m
Avg Delay
0.8%
Cancel Rate
4,535
Total Flights
IAD to DTW Route DetailsReturn: DTW to IAD
IAD AirportDTW Airport

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