How often are LAS to ORD flights on time?

Flights from Las Vegas (LAS) to Chicago (ORD) arrive on time 86% of the time across 31,331 flights of official data.

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

United Airlines has the best on-time record on this route at 91% across 11,879 flights.

Route reliability

Flights from Las Vegas to Chicago arrive on time 86% of the time across 31,331 flights. Here’s how each airline really performs.

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On-time rate

31,331 flights

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

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

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