Route · BIS → DEN · 2020–2025 BTS data
Bismarck/Mandan to Denver
The BIS–DEN corridor (Bismarck/Mandan, ND → Denver, CO) runs ahead of the national average, served by 3 carriers across roughly 516 miles.
Data updated 2026-06-13
- 80%
- On-time
- +1 pts
- vs US avg
- 97 min
- Delay when late
- 6,872
- Flights
Cancelled
1.1%
Best Month
Oct 2024 92%
Worst Month
Jan 2025 62%
Distance
516 mi
Carriers
3
Monthly Performance
Recent 24 months of route data.
| Period | Flights | Delayed | Cancelled | Diverted | Carriers |
|---|---|---|---|---|---|
| Dec 2025 | 122 | 40 | 0 | 1 | OO |
| Nov 2025 | 116 | 12 | 3 | 1 | OO |
| Oct 2025 | 120 | 16 | 0 | 0 | OO |
| Sep 2025 | 137 | 21 | 0 | 0 | OO |
| Aug 2025 | 152 | 41 | 0 | 2 | OO |
| Jul 2025 | 154 | 39 | 1 | 6 | OO |
| Jun 2025 | 150 | 45 | 2 | 3 | OO |
| May 2025 | 134 | 37 | 2 | 3 | OO |
| Apr 2025 | 120 | 38 | 0 | 0 | OO |
| Mar 2025 | 124 | 21 | 0 | 0 | OO |
| Feb 2025 | 112 | 35 | 6 | 2 | OO |
| Jan 2025 | 124 | 47 | 1 | 0 | OO |
| Dec 2024 | 125 | 22 | 0 | 0 | OO |
| Nov 2024 | 118 | 27 | 3 | 0 | OO |
| Oct 2024 | 124 | 10 | 0 | 0 | OO |
| Sep 2024 | 120 | 18 | 0 | 1 | OO |
| Aug 2024 | 106 | 24 | 0 | 0 | OO |
| Jul 2024 | 93 | 18 | 0 | 1 | OO |
| Jun 2024 | 95 | 26 | 1 | 1 | OO |
| May 2024 | 122 | 24 | 2 | 1 | OO |
| Apr 2024 | 90 | 12 | 1 | 2 | OO |
| Mar 2024 | 93 | 9 | 4 | 0 | OO |
| Feb 2024 | 87 | 24 | 0 | 1 | OO |
| Jan 2024 | 93 | 23 | 6 | 0 | OO |
Cancellation Rate
1.1%
32 of 2,831 flights
Diversion Rate
0.9%
25 of 2,831 flights
Explore origin & destination
On-time and delay data for the airports this route connects.
BIS - Bismarck/Mandan
Full on-time, delay-cause, and seasonal performance for Bismarck/Mandan, ND.
Origin airport →DEN - Denver
Full on-time, delay-cause, and seasonal performance for Denver, CO.
Destination airport →Compare the two airports
See BIS and DEN side by side on delays, cancellations, and reliability.
Open comparison tool →Similar routes
Other BTS-tracked routes with comparable performance or trip length to BIS–DEN.
Routes with a similar on-time rate
What the Data Says About BIS to DEN
6,872 tracked flights put the BIS to DEN pairing (Bismarck/Mandan to Denver) at a 80% on-time rate, squarely in line with the wider network. Delays that do occur run 96.9 minutes on average. Across the 516-mile route and its 3 carriers, the trailing 24 months show 1.1% cancelled and 0.9% diverted (2,831 flights sampled).
The monthly split is wide on this route: Oct 2024 posted the strongest performance at 92% on-time, while Jan 2025 came in at just 62% - a 30-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.