IAH (Houston) to RDU (Raleigh) flights arrive on time 77% of the time. The most reliable airline on this route is United Airlines at 79%. 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 March 2026.IAH → RDU
IAH (Houston) to RDU (Raleigh)
IAH → RDU on-time performance by month
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JanFebMarAprMayJunJulAugSepOctNovDec
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This route is on time most of the time. About 77% of flights arrive on schedule.
Delays on this route are most often caused by the incoming plane arriving late.
Accurate?
United Airlines edges out Frontier Airlines on this route — 79% vs 67% on time.
Airline Comparison
United Airlines leads at 79% on time; Frontier Airlines trails at 67%.
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 RDU
80% on timeWhen flights into RDU are late, the average delay is 72 minutes. Build buffer if you have ground plans.
If connecting at RDU: TSA is ~14 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.