Route · XWA → DEN · 2020–2025 BTS data
Williston to Denver
The XWA–DEN corridor (Williston, ND → Denver, CO) runs behind the national average, served by 1 carrier across roughly 582 miles.
Data updated 2026-06-13
- 78.4%
- On-time
- -0.6 pts
- vs US avg
- 108 min
- Delay when late
- 5,784
- Flights
Cancelled
1.5%
Best Month
Oct 2024 94%
Worst Month
Dec 2025 61%
Distance
582 mi
Carriers
1
Monthly Performance
Recent 24 months of route data.
| Period | Flights | Delayed | Cancelled | Diverted | Carriers |
|---|---|---|---|---|---|
| Dec 2025 | 116 | 45 | 1 | 1 | OO |
| Nov 2025 | 112 | 19 | 3 | 0 | OO |
| Oct 2025 | 120 | 21 | 0 | 0 | OO |
| Sep 2025 | 137 | 18 | 0 | 1 | OO |
| Aug 2025 | 150 | 37 | 2 | 3 | OO |
| Jul 2025 | 154 | 48 | 2 | 4 | OO |
| Jun 2025 | 150 | 47 | 2 | 3 | OO |
| May 2025 | 130 | 36 | 1 | 3 | OO |
| Apr 2025 | 116 | 34 | 1 | 3 | OO |
| Mar 2025 | 114 | 20 | 0 | 2 | OO |
| Feb 2025 | 102 | 29 | 3 | 0 | OO |
| Jan 2025 | 111 | 39 | 1 | 1 | OO |
| Dec 2024 | 114 | 25 | 1 | 0 | OO |
| Nov 2024 | 109 | 36 | 6 | 1 | OO |
| Oct 2024 | 124 | 8 | 2 | 1 | OO |
| Sep 2024 | 112 | 15 | 0 | 0 | OO |
| Aug 2024 | 106 | 20 | 0 | 1 | OO |
| Jul 2024 | 101 | 30 | 0 | 0 | OO |
| Jun 2024 | 110 | 27 | 0 | 1 | OO |
| May 2024 | 116 | 15 | 1 | 0 | OO |
| Apr 2024 | 86 | 9 | 0 | 0 | OO |
| Mar 2024 | 88 | 18 | 4 | 0 | OO |
| Feb 2024 | 83 | 18 | 6 | 0 | OO |
| Jan 2024 | 88 | 21 | 5 | 0 | OO |
Cancellation Rate
1.5%
41 of 2,749 flights
Diversion Rate
0.9%
25 of 2,749 flights
Explore origin & destination
On-time and delay data for the airports this route connects.
XWA - Williston
Full on-time, delay-cause, and seasonal performance for Williston, ND.
Origin airport →DEN - Denver
Full on-time, delay-cause, and seasonal performance for Denver, CO.
Destination airport →Compare the two airports
See XWA 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 XWA–DEN.
Routes with a similar on-time rate
What the Data Says About XWA to DEN
The Williston to Denver corridor (XWA to DEN) posts a 78.4% on-time rate on the lower edge of the average band, based on 5,784 tracked flights. Late flights run 107.9 minutes behind on average. 1 carrier cover the 582-mile route; over the last 24 months, 41 of 2,749 flights were cancelled (1.5%) and 0.9% diverted.
The monthly split is wide on this route: Oct 2024 posted the strongest performance at 94% on-time, while Dec 2025 came in at just 61% - 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.