Which airline is most reliable for DEN (Denver) to ORD (Chicago)?

The most reliable airline on the DEN to ORD route is Southwest Airlines, with an on-time arrival rate of 79%.

How often are flights delayed from DEN to ORD?

About 24% of flights from DEN to ORD experience delays. 76% arrive on time.

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

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

DEN → ORD

DEN (Denver) to ORD (Chicago)

DEN (Denver) to ORD (Chicago) flights arrive on time 76% of the time. The most reliable airline on this route is Southwest Airlines at 79%. 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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DEN → ORD on-time performance by month

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This route is on time most of the time. About 76% of flights arrive on schedule.

Delays on this route are most often caused by weather.

Southwest Airlines edges out JetBlue Airways on this route — 79% vs 73% on time.

Airline Comparison

Southwest Airlines leads at 79% on time; JetBlue Airways trails at 73%.

DEN Airport ORD Airport

Check the return: ORD → DEN

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