How often are IAH to LAS flights on time?

Flights from Houston (IAH) to Las Vegas (LAS) arrive on time 87% of the time across 23,540 flights of official data.

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

Spirit Airlines has the best on-time record on this route at 88% across 5,887 flights.

Route reliability

Flights from Houston to Las Vegas arrive on time 87% of the time across 23,540 flights. Here’s how each airline really performs.

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On-time rate

23,540 flights

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

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

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