IAH (Houston) to OKC (Oklahoma City) flights arrive on time 75% of the time. The most reliable airline on this route is United Airlines at 85%. The average delay is 89 minutes. Delays on this route are most often caused by the incoming plane arriving late.
Source: Bureau of Transportation Statistics. Updated May 2026.IAH → OKC
IAH (Houston) to OKC (Oklahoma City)
IAH → OKC on-time performance by month
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This route is on time most of the time. About 75% of flights arrive on schedule.
Delays on this route are most often caused by the incoming plane arriving late.
Accurate?
United Airlines edges out SkyWest Airlines on this route — 85% vs 76% on time.
Airline Comparison
United Airlines leads at 85% on time; SkyWest Airlines trails at 76%.
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 ~27 min. Best time: 4 AM (about 5 min).
Arriving at OKC
81% on timeWhen flights into OKC are late, the average delay is 70 minutes. Build buffer if you have ground plans.
If connecting at OKC: TSA is ~16 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.