How often are ATL to IAH flights on time?

Flights from Atlanta (ATL) to Houston (IAH) arrive on time 84% of the time across 30,638 flights of official data.

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

United Airlines has the best on-time record on this route at 89% across 10,699 flights.

Route reliability

Flights from Atlanta to Houston arrive on time 84% of the time across 30,638 flights. Here’s how each airline really performs.

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On-time rate

30,638 flights

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

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Are Some Airlines Really More Reliable Than Others?

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

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