Flight Check

Best Airline: STL to DTW

St. Louis to Detroit — airline reliability comparison

Delta Air Lines is the most reliable airline on the STL to DTW route with a 89% on-time rate, compared to SkyWest Airlines at 77%. Based on 4,205 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 Lines89%
Endeavor Air88%
Spirit Airlines83%
Southwest Airlines79%
SkyWest Airlines77%

STL to DTW Airline Comparison

AirlineOn-Time %Cancel %Avg DelayFlights
Delta Air LinesDLBest89%0.9%105m4,205
Endeavor Air9E88%0.0%42m107
Spirit AirlinesNK83%2.8%151m47
Southwest AirlinesWN79%0.5%54m2,067
SkyWest AirlinesOOWorst77%1.9%79m271

Route Overview

85%
Overall On-Time
85m
Avg Delay
0.8%
Cancel Rate
6,768
Total Flights
STL to DTW Route DetailsReturn: DTW to STL
STL AirportDTW Airport

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