How often are ORD to LAS flights on time?

Flights from Chicago (ORD) to Las Vegas (LAS) arrive on time 85% of the time across 31,329 flights of official data.

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

Spirit Airlines has the best on-time record on this route at 89% across 5,047 flights.

Route reliability

Flights from Chicago to Las Vegas arrive on time 85% of the time across 31,329 flights. Here’s how each airline really performs.

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On-time rate

31,329 flights

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

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

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