BUF (Buffalo) to ORD (Chicago) flights arrive on time 78% of the time. The most reliable airline on this route is Republic Airways at 82%. The average delay is 85 minutes. Delays on this route are most often caused by the incoming plane arriving late.
Source: Bureau of Transportation Statistics. Updated October 2026.BUF → ORD
BUF (Buffalo) to ORD (Chicago)
BUF → ORD on-time performance by month
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JanFebMarAprMayJunJulAugSepOctNovDec
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This route is on time most of the time. About 78% of flights arrive on schedule.
Delays on this route are most often caused by the incoming plane arriving late.
Accurate?
Republic Airways edges out SkyWest Airlines on this route — 82% vs 72% on time.
Airline Comparison
Republic Airways leads at 82% on time; SkyWest Airlines trails at 72%.
Accurate?
Good to know
Departing from BUF
78% on timeExpect ~18 min sitting on the taxiway after your gate pushes back. BUF has long runway queues.
TSA is currently ~18 min. Best time: 4 AM (about 5 min).
BUF cancels 2.3% of flights — higher than average. Have a backup plan.
Arriving at ORD
77% 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 ~36 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 BUF? 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 October 2026. Source: Bureau of Transportation Statistics.