Route · ORD → BZN · 2020–2025 BTS data
Chicago to Bozeman
The ORD–BZN corridor (Chicago, IL → Bozeman, MT) runs ahead of the national average, served by 28 carriers across roughly 1,185 miles.
Data updated 2026-06-13
- 79.3%
- On-time
- +0.3 pts
- vs US avg
- 65 min
- Delay when late
- 4,884
- Flights
Cancelled
0.6%
Best Month
Feb 2024 95%
Worst Month
Jul 2025 58%
Distance
1,185 mi
Carriers
28
Monthly Performance
Recent 24 months of route data.
| Period | Flights | Delayed | Cancelled | Diverted | Carriers |
|---|---|---|---|---|---|
| Dec 2025 | 84 | 35 | 0 | 1 | AA,MQ,UA |
| Nov 2025 | 31 | 4 | 0 | 1 | UA,AA |
| Oct 2025 | 114 | 37 | 0 | 0 | AA,UA,MQ |
| Sep 2025 | 133 | 26 | 0 | 1 | UA,OO,AA |
| Aug 2025 | 144 | 40 | 4 | 1 | AA,OO,UA |
| Jul 2025 | 142 | 60 | 2 | 0 | AA,OO,UA |
| Jun 2025 | 134 | 32 | 0 | 0 | AA,OO,UA |
| May 2025 | 70 | 8 | 0 | 0 | OO,UA |
| Apr 2025 | 34 | 3 | 1 | 0 | UA,AA |
| Mar 2025 | 83 | 23 | 1 | 0 | AA,OO,UA |
| Feb 2025 | 68 | 17 | 0 | 2 | AA,OO,UA |
| Jan 2025 | 79 | 28 | 0 | 1 | AA,OO,UA,MQ |
| Dec 2024 | 87 | 22 | 0 | 0 | AA,MQ,OO,UA |
| Nov 2024 | 34 | 3 | 0 | 0 | OO,MQ |
| Oct 2024 | 87 | 18 | 0 | 0 | UA,MQ,OO,AA |
| Sep 2024 | 90 | 6 | 0 | 0 | OO,UA,AA |
| Aug 2024 | 88 | 31 | 1 | 0 | AA,UA |
| Jul 2024 | 83 | 25 | 1 | 1 | AA,UA |
| Jun 2024 | 78 | 25 | 0 | 0 | AA,UA |
| May 2024 | 60 | 17 | 0 | 0 | UA |
| Apr 2024 | 41 | 8 | 0 | 0 | AA,UA |
| Mar 2024 | 84 | 10 | 0 | 1 | AA,UA |
| Feb 2024 | 66 | 3 | 0 | 0 | AA,UA |
| Jan 2024 | 75 | 17 | 2 | 2 | AA,UA |
Cancellation Rate
0.6%
12 of 1,989 flights
Diversion Rate
0.6%
11 of 1,989 flights
Explore origin & destination
On-time and delay data for the airports this route connects.
ORD - Chicago
Full on-time, delay-cause, and seasonal performance for Chicago, IL.
Origin airport →BZN - Bozeman
Full on-time, delay-cause, and seasonal performance for Bozeman, MT.
Destination airport →Compare the two airports
See ORD and BZN side by side on delays, cancellations, and reliability.
Open comparison tool →Similar routes
Other BTS-tracked routes with comparable performance or trip length to ORD–BZN.
Routes with a similar on-time rate
What the Data Says About ORD to BZN
4,884 tracked flights put the ORD to BZN pairing (Chicago to Bozeman) at a 79.3% on-time rate, squarely in line with the wider network. Delays that do occur run 64.5 minutes on average. Across the 1,185-mile route and its 28 carriers, the trailing 24 months show 0.6% cancelled and 0.6% diverted (1,989 flights sampled).
The monthly split is wide on this route: Feb 2024 posted the strongest performance at 95% on-time, while Jul 2025 came in at just 58% - a 38-point swing worth factoring into travel timing.
Frequently Asked Questions
How often are flights delayed from ORD to BZN? ▼
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Data source
Data Source: Bureau of Transportation Statistics (BTS), On-Time Performance Data. Statistics reflect cumulative performance across all available reporting periods.
Read our methodology - how this data is sourced, computed, and verified.
Every figure on PlainFlights is rendered directly from BTS On-Time Performance data, no number is typed in by an editor. This page aggregates this specific route's on-time performance and monthly trend, live from the dataset. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error.