IAH (Houston) to SDF (Louisville) flights arrive on time 67% of the time. The average delay is 37 minutes. Delays on this route are most often caused by air traffic and busy airspace.
Source: Bureau of Transportation Statistics. Updated March 2026.IAH → SDF
IAH (Houston) to SDF (Louisville)
IAH → SDF on-time performance by month
25
JanFebMarAprMayJunJulAugSepOctNovDec
Worse
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This route is delayed fairly often. About 67% of flights arrive on schedule.
Delays on this route are most often caused by air traffic and busy airspace.
Accurate?
Good to know
Departing from IAH
80% on timeExpect ~18 min sitting on the taxiway after your gate pushes back. IAH has long runway queues.
TSA is currently ~11 min. Best time: 4 AM (about 5 min).
Arriving at SDF
81% on timeWhen flights into SDF are late, the average delay is 74 minutes. Build buffer if you have ground plans.
If connecting at SDF: TSA is ~11 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.