ORD (Chicago) to SDF (Louisville) flights arrive on time 79% of the time. The most reliable airline on this route is Republic Airways at 80%. The average delay is 67 minutes. Delays on this route are most often caused by the incoming plane arriving late.
Source: Bureau of Transportation Statistics. Updated October 2026.ORD → SDF
ORD (Chicago) to SDF (Louisville)
ORD → SDF on-time performance by month
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This route is on time most of the time. About 79% of flights arrive on schedule.
Delays on this route are most often caused by the incoming plane arriving late.
Accurate?
Airlines are roughly equal on this route — Republic Airways leads slightly at 80% vs United Airlines at 76%.
Airline Comparison
Republic Airways leads at 80% on time; United Airlines trails at 76%.
Accurate?
Good to know
Departing from ORD
77% on timeExpect ~22 min sitting on the taxiway after your gate pushes back. ORD has long runway queues.
TSA is currently ~36 min. Best time: 4 AM (about 5 min).
Arriving at SDF
81% on timeWhen flights into SDF are late, the average delay is 75 minutes. Build buffer if you have ground plans.
If connecting at SDF: TSA is ~24 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 ORD? 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.