IAH (Houston) to AUS (Austin) flights arrive on time 76% of the time. The most reliable airline on this route is SkyWest 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 April 2026.IAH → AUS
IAH (Houston) to AUS (Austin)
IAH → AUS on-time performance by month
24
25
JanFebMarAprMayJunJulAugSepOctNovDec
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This route is on time most of the time. About 76% 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 75%.
Airline Comparison
SkyWest Airlines leads at 79% on time; United Airlines trails at 75%.
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 ~9 min. Best time: 4 AM (about 5 min).
Arriving at AUS
79% on timeWhen flights into AUS are late, the average delay is 66 minutes. Build buffer if you have ground plans.
If connecting at AUS: TSA is ~17 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.