Which airline is most reliable for ORD (Chicago) to LAX (Los Angeles)?

The most reliable airline on the ORD to LAX route is Alaska Airlines, with an on-time arrival rate of 78%.

How often are flights delayed from ORD to LAX?

About 25% of flights from ORD to LAX experience delays. 75% arrive on time.

What's the average delay on ORD to LAX flights?

When flights from ORD to LAX are delayed, the average delay is approximately 41 minutes.

ORD → LAX

ORD (Chicago) to LAX (Los Angeles)

ORD (Chicago) to LAX (Los Angeles) flights arrive on time 75% of the time. The most reliable airline on this route is Alaska Airlines at 78%. The average delay is 41 minutes. Delays on this route are most often caused by weather.

Source: Bureau of Transportation Statistics. Updated March 2026.

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ORD → LAX on-time performance by month

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This route is delayed fairly often. About 75% of flights arrive on schedule.

Delays on this route are most often caused by weather.

Airlines are roughly equal on this route — Alaska Airlines leads slightly at 78% vs United Airlines at 76%.

Airline Comparison

Alaska Airlines leads at 78% on time; United Airlines trails at 76%.

ORD Airport LAX Airport

Check the return: LAX → ORD

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Data last updated March 2026. Source: Bureau of Transportation Statistics.