Which airline is most reliable for BZN (Bozeman) to ORD (Chicago)?

The most reliable airline on the BZN to ORD route is United Airlines, with an on-time arrival rate of 84%.

How often are flights delayed from BZN to ORD?

About 22% of flights from BZN to ORD experience delays. 78% arrive on time.

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

When flights from BZN to ORD are delayed, the average delay is approximately 94 minutes.

Is a short connection safe after a BZN to ORD flight?

With 78% of BZN to ORD flights arriving on time and an average delay of 94 minutes when late, a connection under 60 minutes at ORD is risky. We recommend at least 75-90 minutes for domestic connections after this route.

Is BZN (Bozeman) to ORD (Chicago) usually delayed?

BZN to ORD flights are moderately reliable at 78% on time. About 22% of flights experience delays averaging 94 minutes. Delays on this route are most often caused by late incoming aircraft.

What airline is most reliable on BZN (Bozeman) to ORD (Chicago)?

United Airlines is the most reliable airline flying BZN to ORD, with 84% of flights arriving on time. The least reliable is American Airlines at 68%.

What's the best month to fly BZN (Bozeman) to ORD (Chicago)?

The best month to fly BZN to ORD is May, when 91% of flights arrive on time. The worst month is July at 67% on time. If your schedule is flexible, flying in May gives you the best odds of an on-time arrival.

BZN → ORD

BZN (Bozeman) to ORD (Chicago)

BZN (Bozeman) to ORD (Chicago) flights arrive on time 78% of the time. The most reliable airline on this route is United Airlines at 84%. The average delay is 94 minutes. Delays on this route are most often caused by late incoming aircraft.

Source: Bureau of Transportation Statistics. Updated November 2026.

BZN → ORD on-time performance by month

JanFebMarAprMayJunJulAugSepOctNovDec

Worse

Better

This route is on time most of the time. About 78% of flights arrive on schedule.

Delays on this route are most often caused by late incoming aircraft.

Accurate?

United Airlines is significantly more reliable on this route at 84% on time vs American Airlines at 68%.

Airline Comparison

United Airlines leads at 84% on time; American Airlines trails at 68%.

Accurate?

Best & worst months to fly BZN → ORD

Best month

May

91% on time

Worst month

July

67% on time

May

91%

Oct

86%

Apr

83%

Sep

82%

Feb

81%

Dec

79%

Mar

77%

Nov

77%

Jun

77%

Aug

76%

Jan

72%

Jul

67%

Good to know

Departing from BZN

80% on time

Expect ~19 min sitting on the taxiway after your gate pushes back. BZN has long runway queues.

TSA is currently ~5 min. Best time: 4 AM (5 min).

More about BZN →

Arriving at ORD

77% on time

When flights into ORD are late, the average delay is 79 minutes. Build buffer if you have ground plans.

If connecting at ORD: TSA is ~5 min right now. Allow at least 60 minutes for a domestic connection.

More about ORD →Connection times at ORD →

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BZN Airport ORD Airport

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