ORD (Chicago) to GSP (Greenville) flights arrive on time 77% of the time. The most reliable airline on this route is Republic Airways at 86%. The average delay is 69 minutes. Delays on this route are most often caused by the incoming plane arriving late.
Source: Bureau of Transportation Statistics. Updated May 2026.ORD → GSP
ORD (Chicago) to GSP (Greenville)
ORD → GSP on-time performance by month
24
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JanFebMarAprMayJunJulAugSepOctNovDec
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This route is on time most of the time. About 77% of flights arrive on schedule.
Delays on this route are most often caused by the incoming plane arriving late.
Accurate?
Republic Airways is significantly more reliable on this route at 86% on time vs PSA Airlines at 43%.
Airline Comparison
Republic Airways leads at 86% on time; PSA Airlines trails at 43%.
Accurate?
Good to know
Departing from ORD
80% on timeExpect ~20 min sitting on the taxiway after your gate pushes back. ORD has long runway queues.
TSA is currently ~34 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 ~19 min right now. Allow at least 60 minutes for a domestic connection.
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Data last updated May 2026. Source: Bureau of Transportation Statistics.