Route · BZN → ORD · 2020–2025 BTS data
Bozeman to Chicago
The BZN–ORD corridor (Bozeman, MT → Chicago, IL) runs ahead of the national average, served by 29 carriers across roughly 1,185 miles.
Data updated 2026-06-13
- 80.9%
- On-time
- +1.9 pts
- vs US avg
- 98 min
- Delay when late
- 4,882
- Flights
Cancelled
0.7%
Best Month
May 2025 97%
Worst Month
Jul 2024 65%
Distance
1,185 mi
Carriers
29
Monthly Performance
Recent 24 months of route data.
| Period | Flights | Delayed | Cancelled | Diverted | Carriers |
|---|---|---|---|---|---|
| Dec 2025 | 83 | 27 | 0 | 0 | AA,MQ,UA |
| Nov 2025 | 31 | 10 | 0 | 0 | UA,AA |
| Oct 2025 | 115 | 19 | 1 | 0 | AA,UA,MQ |
| Sep 2025 | 133 | 31 | 0 | 0 | UA,OO,AA |
| Aug 2025 | 144 | 40 | 4 | 3 | AA,OO,UA |
| Jul 2025 | 142 | 48 | 2 | 1 | AA,OO,UA |
| Jun 2025 | 134 | 26 | 0 | 2 | AA,OO,UA |
| May 2025 | 70 | 2 | 0 | 0 | OO,UA |
| Apr 2025 | 33 | 6 | 1 | 0 | UA,AA |
| Mar 2025 | 84 | 20 | 0 | 0 | AA,OO,UA |
| Feb 2025 | 67 | 21 | 0 | 0 | AA,OO,UA |
| Jan 2025 | 80 | 24 | 0 | 0 | AA,OO,UA,MQ |
| Dec 2024 | 86 | 15 | 0 | 0 | AA,MQ,OO,UA |
| Nov 2024 | 34 | 5 | 0 | 0 | OO,MQ |
| Oct 2024 | 88 | 14 | 0 | 0 | UA,MQ,OO,AA |
| Sep 2024 | 90 | 11 | 0 | 0 | OO,UA,AA |
| Aug 2024 | 88 | 21 | 1 | 0 | AA,UA |
| Jul 2024 | 83 | 29 | 2 | 1 | AA,UA |
| Jun 2024 | 78 | 10 | 0 | 0 | AA,UA |
| May 2024 | 59 | 11 | 0 | 2 | UA |
| Apr 2024 | 42 | 7 | 1 | 0 | AA,UA |
| Mar 2024 | 83 | 11 | 0 | 0 | AA,UA |
| Feb 2024 | 66 | 7 | 0 | 0 | AA,UA |
| Jan 2024 | 76 | 19 | 2 | 0 | AA,UA |
Cancellation Rate
0.7%
14 of 1,989 flights
Diversion Rate
0.5%
9 of 1,989 flights
Explore origin & destination
On-time and delay data for the airports this route connects.
BZN - Bozeman
Full on-time, delay-cause, and seasonal performance for Bozeman, MT.
Origin airport →ORD - Chicago
Full on-time, delay-cause, and seasonal performance for Chicago, IL.
Destination airport →Compare the two airports
See BZN and ORD side by side on delays, cancellations, and reliability.
Open comparison tool →Similar routes
Other BTS-tracked routes with comparable performance or trip length to BZN–ORD.
Routes with a similar on-time rate
What the Data Says About BZN to ORD
4,882 tracked flights put the BZN to ORD pairing (Bozeman to Chicago) at a 80.9% on-time rate, squarely in line with the wider network. Delays that do occur run 97.8 minutes on average. Across the 1,185-mile route and its 29 carriers, the trailing 24 months show 0.7% cancelled and 0.5% diverted (1,989 flights sampled).
The monthly split is wide on this route: May 2025 posted the strongest performance at 97% on-time, while Jul 2024 came in at just 65% - a 32-point swing worth factoring into travel timing.
Frequently Asked Questions
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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.