Route · DEN → MSO · 2020–2025 BTS data
Denver to Missoula
The DEN–MSO corridor (Denver, CO → Missoula, MT) runs ahead of the national average, served by 11 carriers across roughly 679 miles.
Data updated 2026-06-13
- 79.9%
- On-time
- +0.9 pts
- vs US avg
- 77 min
- Delay when late
- 6,021
- Flights
Cancelled
0.9%
Best Month
Dec 2024 96%
Worst Month
Dec 2025 67%
Distance
679 mi
Carriers
11
Monthly Performance
Recent 24 months of route data.
| Period | Flights | Delayed | Cancelled | Diverted | Carriers |
|---|---|---|---|---|---|
| Dec 2025 | 94 | 31 | 1 | 1 | F9,UA,OO |
| Nov 2025 | 91 | 9 | 2 | 0 | OO,UA,F9 |
| Oct 2025 | 122 | 13 | 0 | 1 | OO,UA,F9 |
| Sep 2025 | 97 | 10 | 0 | 0 | UA,OO |
| Aug 2025 | 130 | 29 | 0 | 1 | OO,F9,UA |
| Jul 2025 | 132 | 36 | 0 | 1 | OO,UA,F9 |
| Jun 2025 | 104 | 27 | 0 | 1 | OO,UA,F9 |
| May 2025 | 94 | 25 | 1 | 0 | OO,UA,F9 |
| Apr 2025 | 90 | 17 | 0 | 0 | OO,UA |
| Mar 2025 | 88 | 12 | 0 | 0 | OO,UA |
| Feb 2025 | 78 | 11 | 0 | 0 | OO,UA |
| Jan 2025 | 85 | 21 | 0 | 2 | OO,UA |
| Dec 2024 | 93 | 4 | 0 | 1 | OO,UA |
| Nov 2024 | 90 | 15 | 1 | 0 | OO,UA,F9 |
| Oct 2024 | 101 | 7 | 0 | 0 | UA,OO,F9 |
| Sep 2024 | 102 | 13 | 0 | 0 | UA,F9 |
| Aug 2024 | 139 | 27 | 4 | 0 | F9,UA |
| Jul 2024 | 139 | 39 | 5 | 0 | F9,UA |
| Jun 2024 | 111 | 31 | 2 | 0 | F9,UA |
| May 2024 | 105 | 22 | 0 | 1 | F9,OO,UA |
| Apr 2024 | 60 | 16 | 0 | 0 | UA |
| Mar 2024 | 62 | 14 | 0 | 0 | UA |
| Feb 2024 | 58 | 15 | 0 | 0 | UA |
| Jan 2024 | 62 | 14 | 6 | 1 | UA |
Cancellation Rate
0.9%
22 of 2,327 flights
Diversion Rate
0.4%
10 of 2,327 flights
Explore origin & destination
On-time and delay data for the airports this route connects.
DEN - Denver
Full on-time, delay-cause, and seasonal performance for Denver, CO.
Origin airport →MSO - Missoula
Full on-time, delay-cause, and seasonal performance for Missoula, MT.
Destination airport →Compare the two airports
See DEN and MSO side by side on delays, cancellations, and reliability.
Open comparison tool →Similar routes
Other BTS-tracked routes with comparable performance or trip length to DEN–MSO.
Routes with a similar on-time rate
What the Data Says About DEN to MSO
6,021 tracked flights put the DEN to MSO pairing (Denver to Missoula) at a 79.9% on-time rate, squarely in line with the wider network. Delays that do occur run 76.6 minutes on average. Across the 679-mile route and its 11 carriers, the trailing 24 months show 0.9% cancelled and 0.4% diverted (2,327 flights sampled).
The monthly split is wide on this route: Dec 2024 posted the strongest performance at 96% on-time, while Dec 2025 came in at just 67% - a 29-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.