DTW (Detroit) to STL (St. Louis) flights arrive on time 84% of the time. The most reliable airline on this route is Endeavor Air at 87%. The average delay is 64 minutes. Delays on this route are most often caused by the airline (crew, maintenance, or boarding).
Source: Bureau of Transportation Statistics. Updated March 2026.DTW → STL
DTW (Detroit) to STL (St. Louis)
DTW → STL on-time performance by month
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This route is on time most of the time. About 84% of flights arrive on schedule.
Delays on this route are most often caused by the airline (crew, maintenance, or boarding).
Accurate?
Endeavor Air edges out SkyWest Airlines on this route — 87% vs 77% on time.
Airline Comparison
Endeavor Air leads at 87% on time; SkyWest Airlines trails at 77%.
Accurate?
Good to know
Departing from DTW
84% on timeExpect ~17 min sitting on the taxiway after your gate pushes back. DTW has long runway queues.
TSA is currently ~8 min. Best time: 4 AM (about 5 min).
Arriving at STL
81% on timeWhen flights into STL are late, the average delay is 63 minutes. Build buffer if you have ground plans.
If connecting at STL: TSA is ~20 min right now. Allow at least 60 minutes for a domestic connection.
Flight cancelled or delayed?
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Data last updated March 2026. Source: Bureau of Transportation Statistics.