How often are PHX to IAH flights on time?

Flights from Phoenix (PHX) to Houston (IAH) arrive on time 88% of the time across 17,805 flights of official data.

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

United Airlines has the best on-time record on this route at 90% across 11,469 flights.

Route reliability

Flights from Phoenix to Houston arrive on time 88% of the time across 17,805 flights. Here’s how each airline really performs.

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On-time rate

17,805 flights

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

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Do Morning Flights Really Have Fewer Delays?

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Are Some Airlines Really More Reliable Than Others?

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