XWA to DEN flight delays & on-time performance
Nonstop flights from Williston Basin International Airport to Denver International Airport · 582 miles · Aug 2025 – Jul 2026
No FAA-reported ground stops or delays at XWA or DEN right now. Individual flights can still be delayed by the airline; check with your airline for your flight.
Key facts
- Flights from Williston (XWA) to Denver (DEN) arrived on time 77% of the time in Aug 2025 – Jul 2026, worse than the 78% national average.
- 1.3% were cancelled, and 11% arrived an hour or more late.
- SkyWest Airlines is the only airline reporting nonstop flights on this route.
- Departures scheduled around 7am did best (86% on time); around 5pm did worst (55%).
- Wednesday was the most reliable day to fly (80% on time) and Thursday the least (72%).
- The largest source of delay minutes was airline (crew, maintenance, cleaning, fueling) (47%).
Which airline is most on time from XWA to DEN?
Ranked by on-time arrival rate. Regional airlines fly under their partner's brand (e.g. SkyWest for Delta Connection or United Express).
| Airline | On time | Cancelled | Avg delay | 1 hr+ late | Flights |
|---|---|---|---|---|---|
| SkyWest AirlinesRegional airline operating flights for United Express, Delta Connection, American Eagle and Alaska. | 77% | 1.3% | 25 min | 11.2% | 1,371 |
Best time of day to fly
On-time arrival rate by scheduled departure hour (local time).
- 6am82%49 flights
- 7am86%364 flights
- 10am77%82 flights
- 11am81%230 flights
- 1pm67%61 flights
- 2pm77%90 flights
- 3pm72%212 flights
- 5pm55%64 flights
- 6pm69%219 flights
Best day of the week
On-time arrival rate by day of departure.
- Monday75%1.0% cancelled
- Tuesday79%1.0% cancelled
- Wednesday80%0.5% cancelled
- Thursday72%1.5% cancelled
- Friday75%2.4% cancelled
- Saturday80%2.0% cancelled
- Sunday77%1.0% cancelled
On-time trend by month
Why flights are late
Share of delay minutes by cause, as reported by airlines to the DOT.
- Airline (crew, maintenance, cleaning, fueling)47%
- Air traffic control & airport congestion24%
- Late-arriving aircraft20%
- Extreme weather9%
- Security0%
Why flights are cancelled
Share of cancellations by reason.
- Extreme weather83%
- Air traffic control & airport congestion17%
- Airline (crew, maintenance, cleaning, fueling)0%
- Security0%
XWA to DEN: common questions
- How often are XWA to DEN flights on time?
- 77% of flights arrived less than 15 minutes late in Aug 2025 – Jul 2026, compared with 78% for all US flights.
- How often are flights from Williston to Denver cancelled?
- 1.3% of scheduled flights were cancelled (18 of 1,371).
- How long are typical delays?
- Across all flights the average arrival delay was 25 min (early arrivals count as zero). Flights that were late arrived 101 min behind schedule on average, and 11.2% of flights were an hour or more late.
- How long is taxi time at XWA?
- Flights on this route spent 26 min taxiing from the gate to takeoff on average.
Related routes
Data: U.S. DOT Bureau of Transportation Statistics, Aug 2025 – Jul 2026 (12 months). Latest month published by BTS: July 2026. Route: XWA → DEN, nonstop flights by US airlines that report to the DOT. How we calculate this.