Route · DEN → BIL · 2020–2025 BTS data
Denver to Billings
The DEN–BIL corridor (Denver, CO → Billings, MT) runs behind the national average, served by 13 carriers across roughly 455 miles.
Data updated 2026-06-13
- 78.8%
- On-time
- -0.2 pts
- vs US avg
- 69 min
- Delay when late
- 7,472
- Flights
Cancelled
0.8%
Best Month
Oct 2025 91%
Worst Month
Jul 2025 62%
Distance
455 mi
Carriers
13
Monthly Performance
Recent 24 months of route data.
| Period | Flights | Delayed | Cancelled | Diverted | Carriers |
|---|---|---|---|---|---|
| Dec 2025 | 124 | 23 | 2 | 2 | UA,OO |
| Nov 2025 | 146 | 17 | 4 | 0 | OO,UA |
| Oct 2025 | 155 | 14 | 0 | 0 | OO,UA |
| Sep 2025 | 167 | 26 | 0 | 1 | UA,OO |
| Aug 2025 | 181 | 55 | 1 | 0 | OO,UA |
| Jul 2025 | 183 | 69 | 3 | 2 | OO,UA |
| Jun 2025 | 180 | 59 | 1 | 2 | OO,UA |
| May 2025 | 165 | 42 | 1 | 1 | OO,UA |
| Apr 2025 | 150 | 37 | 4 | 2 | OO,UA |
| Mar 2025 | 126 | 16 | 1 | 0 | OO,UA |
| Feb 2025 | 112 | 29 | 2 | 0 | OO,UA |
| Jan 2025 | 124 | 42 | 0 | 0 | OO,UA |
| Dec 2024 | 123 | 13 | 0 | 0 | OO,UA |
| Nov 2024 | 116 | 25 | 3 | 0 | OO,UA |
| Oct 2024 | 150 | 17 | 0 | 0 | UA,OO |
| Sep 2024 | 150 | 17 | 0 | 0 | OO,UA |
| Aug 2024 | 142 | 46 | 0 | 0 | OO,UA |
| Jul 2024 | 138 | 38 | 2 | 0 | OO,UA |
| Jun 2024 | 150 | 47 | 2 | 0 | OO,UA |
| May 2024 | 129 | 29 | 0 | 0 | OO,UA |
| Apr 2024 | 119 | 17 | 0 | 1 | OO,UA |
| Mar 2024 | 68 | 15 | 0 | 0 | OO,UA |
| Feb 2024 | 58 | 17 | 0 | 0 | UA |
| Jan 2024 | 62 | 18 | 1 | 0 | UA |
Cancellation Rate
0.8%
27 of 3,218 flights
Diversion Rate
0.3%
11 of 3,218 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 →BIL - Billings
Full on-time, delay-cause, and seasonal performance for Billings, MT.
Destination airport →Compare the two airports
See DEN and BIL 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–BIL.
Routes with a similar on-time rate
What the Data Says About DEN to BIL
7,472 tracked flights put the DEN to BIL pairing (Denver to Billings) at a 78.8% on-time rate, squarely in line with the wider network. Delays that do occur run 69.4 minutes on average. Across the 455-mile route and its 13 carriers, the trailing 24 months show 0.8% cancelled and 0.3% diverted (3,218 flights sampled).
The monthly split is wide on this route: Oct 2025 posted the strongest performance at 91% on-time, while Jul 2025 came in at just 62% - 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.