GRR (Grand Rapids) to ORD (Chicago) flights arrive on time 72% of the time. The most reliable airline on this route is Republic Airways at 79%. The average delay is 82 minutes. Delays on this route are most often caused by the airline (crew, maintenance, or boarding).
Source: Bureau of Transportation Statistics. Updated August 2026.GRR → ORD
GRR (Grand Rapids) to ORD (Chicago)
GRR → ORD on-time performance by month
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JanFebMarAprMayJunJulAugSepOctNovDec
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This route is delayed fairly often. About 72% of flights arrive on schedule.
Delays on this route are most often caused by the airline (crew, maintenance, or boarding).
Accurate?
Republic Airways is significantly more reliable on this route at 79% on time vs SkyWest Airlines at 64%.
Airline Comparison
Republic Airways leads at 79% on time; SkyWest Airlines trails at 64%.
Accurate?
Good to know
Departing from GRR
78% on timeExpect ~19 min sitting on the taxiway after your gate pushes back. GRR has long runway queues.
TSA is currently ~13 min. Best time: 4 AM (about 5 min).
Arriving at ORD
75% on timeWhen flights into ORD are late, the average delay is 79 minutes. Build buffer if you have ground plans.
If connecting at ORD: TSA is ~10 min right now. Allow at least 60 minutes for a domestic connection.
Flight cancelled or delayed?
Check what Republic Airways owes you — refund rights, action plan, complaint email. Free.
Flying out of GRR? We'll brief you.
Delays, TSA, weather, gates — we'll let you know if something matters.
Know someone flying soon?
Send them the link — delay data, TSA waits, weather, all free.
Data last updated August 2026. Source: Bureau of Transportation Statistics.