DEN (Denver) to GSP (Greenville) flights arrive on time 84% of the time. The most reliable airline on this route is United Airlines at 87%. The average delay is 43 minutes. Delays on this route are most often caused by the airline (crew, maintenance, or boarding).
Source: Bureau of Transportation Statistics. Updated March 2026.DEN → GSP
DEN (Denver) to GSP (Greenville)
DEN → GSP 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?
Airlines are roughly equal on this route — United Airlines leads slightly at 87% vs SkyWest Airlines at 84%.
Airline Comparison
United Airlines leads at 87% on time; SkyWest Airlines trails at 84%.
Accurate?
Good to know
Departing from DEN
78% on timeExpect ~17 min sitting on the taxiway after your gate pushes back. DEN has long runway queues.
TSA is currently ~5 min. Best time: 4 AM (about 5 min).
Arriving at GSP
83% on timeWhen flights into GSP are late, the average delay is 71 minutes. Build buffer if you have ground plans.
If connecting at GSP: 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.