How often are IAH to AUS flights on time?

Flights from Houston (IAH) to Austin (AUS) arrive on time 84% of the time across 16,229 flights of official data.

Which airline is most reliable on the IAH to AUS route?

United Airlines has the best on-time record on this route at 84% across 16,229 flights.

Route reliability

Flights from Houston to Austin arrive on time 84% of the time across 16,229 flights. Here’s how each airline really performs.

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On-time rate

16,229 flights

Airline	On-time	Flights
United Airlines	84%	16,229

On-time = arrived within 15 minutes of schedule, per BTS TranStats. Compare the reverse leg AUS → IAH.

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Score real IAH–AUS flights on reliability, weather, and connection safety — not just price.