SAT (San Antonio) to DTW (Detroit) flights arrive on time 89% of the time. The most reliable airline on this route is Spirit Airlines at 90%. The average delay is 97 minutes. Delays on this route are most often caused by the airline (crew, maintenance, or boarding).
Source: Bureau of Transportation Statistics. Updated May 2026.SAT → DTW
SAT (San Antonio) to DTW (Detroit)
SAT → DTW on-time performance by month
24
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JanFebMarAprMayJunJulAugSepOctNovDec
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This route is usually on time. About 89% of flights arrive on schedule.
Delays on this route are most often caused by the airline (crew, maintenance, or boarding).
Accurate?
Airlines are roughly equal on this route — Spirit Airlines leads slightly at 90% vs Delta Air Lines at 89%.
Airline Comparison
Spirit Airlines leads at 90% on time; Delta Air Lines trails at 89%.
Accurate?
Good to know
Departing from SAT
81% on timeTSA is currently ~18 min. Best time: 4 AM (about 5 min).
Arriving at DTW
84% on timeWhen flights into DTW are late, the average delay is 75 minutes. Build buffer if you have ground plans.
If connecting at DTW: TSA is ~11 min right now. Allow at least 60 minutes for a domestic connection.
Flight cancelled or delayed?
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Data last updated May 2026. Source: Bureau of Transportation Statistics.