How often are LAS to IAH flights on time?

Flights from Las Vegas (LAS) to Houston (IAH) arrive on time 88% of the time across 23,547 flights of official data.

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

United Airlines has the best on-time record on this route at 91% across 13,712 flights.

Route reliability

Flights from Las Vegas to Houston arrive on time 88% of the time across 23,547 flights. Here’s how each airline really performs.

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On-time rate

23,547 flights

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

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

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