Williston Basin International Airport (XWA): Delays & On-Time Performance
Data through May 2026
Williston Basin International Airport (XWA) is a tale of two seasons: departures ran 92% on-time in October 2025 but sank to 61% in December 2025. Across the year it averages 80% against a national 78%, over roughly 7 departures a day to 3 destinations.
- Departures on-time
- 80%
- left <15 min late
- Avg dep delay
- 25 min
- Arrivals on-time
- 77%
- Cancelled
- 1.3%
- Destinations
- 3
- nonstop
- Airlines
- 1
Monthly on-time trend
Best time of day to depart from XWA
Busiest routes from XWA
| Route | Flights/12mo | On-time | Avg delay |
|---|---|---|---|
| XWA → DEN | 1,453 | 75% | 26 min |
| XWA → MSP | 986 | 79% | 28 min |
Frequently asked questions
- How often are flights delayed at XWA?
- 20% of departures from Williston Basin International Airport left 15+ minutes late between 2024-06 and 2026-05, with an average departure delay of 25 minutes. The national on-time average over the same period was 78%.
- What is the best time of day to depart from XWA?
- Flights scheduled around 6 a.m. depart on time 88% of the time at XWA, versus 65% around 5 p.m.. Booking before noon is the usual rule of thumb here.
- What is the worst month for delays at XWA?
- In this dataset, December 2025 was the weakest month at XWA, with 61% of departures on time.
- How often are flights cancelled at XWA?
- 1.3% of scheduled departures from XWA were cancelled in this period, compared with a national rate of 1.6%.
Popular route pages from this airport
Based on 4,528 flights, 2024-06–2026-05. Source: US DOT Bureau of Transportation Statistics. Updated 2026-07-01.