GSP (Greenville) to DTW (Detroit) flights arrive on time 87% of the time. The most reliable airline on this route is Delta Air Lines at 94%. The average delay is 84 minutes. Delays on this route are most often caused by the airline (crew, maintenance, or boarding).
Source: Bureau of Transportation Statistics. Updated March 2026.GSP → DTW
GSP (Greenville) to DTW (Detroit)
GSP → DTW on-time performance by month
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This route is usually on time. About 87% of flights arrive on schedule.
Delays on this route are most often caused by the airline (crew, maintenance, or boarding).
Accurate?
Delta Air Lines is significantly more reliable on this route at 94% on time vs Endeavor Air at 78%.
Airline Comparison
Delta Air Lines leads at 94% on time; Endeavor Air trails at 78%.
Accurate?
Good to know
Departing from GSP
83% on timeExpect ~19 min sitting on the taxiway after your gate pushes back. GSP has long runway queues.
TSA is currently ~5 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 ~5 min right now. Allow at least 60 minutes for a domestic connection.
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Data last updated March 2026. Source: Bureau of Transportation Statistics.