Flight Check

Best Airline: DTW to STL

Detroit to St. Louis — airline reliability comparison

Endeavor Air is the most reliable airline on the DTW to STL route with a 87% on-time rate, compared to SkyWest Airlines at 69%. Based on 107 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

Endeavor Air87%
Spirit Airlines85%
Delta Air Lines85%
Southwest Airlines81%
SkyWest Airlines69%

DTW to STL Airline Comparison

AirlineOn-Time %Cancel %Avg DelayFlights
Endeavor Air9EBest87%0.0%49m107
Spirit AirlinesNK85%2.8%108m47
Delta Air LinesDL85%0.7%68m4,206
Southwest AirlinesWN81%0.6%54m2,062
SkyWest AirlinesOOWorst69%1.9%67m271

Route Overview

83%
Overall On-Time
63m
Avg Delay
0.7%
Cancel Rate
6,763
Total Flights
DTW to STL Route DetailsReturn: STL to DTW
DTW AirportSTL Airport

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