AUS (Austin) to IAH (Houston) flights arrive on time 79% of the time. The most reliable airline on this route is SkyWest Airlines at 79%. The average delay is 68 minutes. Delays on this route are most often caused by the incoming plane arriving late.
Source: Bureau of Transportation Statistics. Updated April 2026.AUS → IAH
AUS (Austin) to IAH (Houston)
AUS → IAH on-time performance by month
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JanFebMarAprMayJunJulAugSepOctNovDec
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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 — SkyWest Airlines leads slightly at 79% vs United Airlines at 79%.
Airline Comparison
SkyWest Airlines leads at 79% on time; United Airlines trails at 79%.
Accurate?
Good to know
Departing from AUS
79% on timeExpect ~16 min sitting on the taxiway after your gate pushes back. AUS has long runway queues.
TSA is currently ~19 min. Best time: 4 AM (about 5 min).
Arriving at IAH
80% on timeWhen flights into IAH are late, the average delay is 75 minutes. Build buffer if you have ground plans.
If connecting at IAH: TSA is ~25 min right now. Allow at least 60 minutes for a domestic connection.
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Data last updated April 2026. Source: Bureau of Transportation Statistics.