How often are LAX to ORD flights on time?

Flights from Los Angeles (LAX) to Chicago (ORD) arrive on time 88% of the time across 39,509 flights of official data.

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

United Airlines has the best on-time record on this route at 91% across 17,864 flights.

Route reliability

Flights from Los Angeles to Chicago arrive on time 88% of the time across 39,509 flights. Here’s how each airline really performs.

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On-time rate

39,509 flights

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

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