Williston Basin International (XWA) Delays and On-Time Departures
Williston, ND · ranked 180th of 333 airports for on-time departures
Data through July 2026 · Last updated October 18, 2026
80.2% of the 2,411 flights scheduled to depart Williston (XWA) in the last 12 months left on time, 2.8 points above the US average of 77.4%.
That ranks 180th of 333 US airports tracked on this site, with 1.5% of departures cancelled.
October has been the best month (92% on time) and Monday the weakest day of the week (78%).
Best time of day to fly out of Williston (XWA)
On-time departure % by scheduled departure hour (local time), last 24 months.
Show the numbers
| Departure hour | On time | Cancelled | Flights |
|---|---|---|---|
| 5am–6am | 84.6% | 1.4% | 297 |
| 6am–7am | 87.7% | 1.3% | 478 |
| 7am–8am | 87.8% | 1.5% | 798 |
| 10am–11am | 83.1% | 1.2% | 84 |
| 11am–12pm | 86.0% | 0.6% | 504 |
| 12pm–1pm | 77.1% | 1.1% | 723 |
| 1pm–2pm | 69.0% | 0.0% | 100 |
| 2pm–3pm | 75.0% | 0.0% | 148 |
| 3pm–4pm | 76.4% | 1.3% | 832 |
| 4pm–5pm | Limited data | 18 | |
| 5pm–6pm | 64.6% | 1.8% | 334 |
| 6pm–7pm | 71.8% | 2.9% | 274 |
Airlines at XWA ranked by on-time departures
Last 12 months. Airlines with fewer than 30 departures are marked “limited data”.
| Airline | On-time departures | On-time arrivals | Cancelled | Departures |
|---|---|---|---|---|
| SkyWest Airlines | 80.2% | 78.1% | 1.5% | 2,411 |
80%+ good 70–79.9% fair <70% poor
Best day to fly out of XWA
On-time departures by day, 24 months.
Best month to fly out of XWA
On-time departures by month, 24 months.
Holiday travel at Williston (XWA)
On-time departures during holiday periods compared with all other days, last 24 months.
| Period | On-time departures | vs other days | Cancelled | Flights |
|---|---|---|---|---|
| Thanksgiving week (Tue before to Mon after) | 66.7% | -14.4 pts | 1.2% | 82 |
| Christmas & New Year (Dec 20 - Jan 3) | 68.5% | -12.5 pts | 1.1% | 180 |
| Summer peak (Jun 15 - Aug 15) | 79.6% | -1.4 pts | 0.6% | 834 |
| All other days | 81.0% | — | 1.5% | 3,494 |
Monthly on-time departure trend at XWA
On-time departure % each month, with the 12-month US average for reference.
Routes from Williston (XWA)
Every route from XWA with its own page, by number of flights (last 12 months, on-time arrivals).
| To | On time | Cancelled | Flights |
|---|---|---|---|
| XWA → Denver (DEN) | 76.6% | 1.3% | 1,371 |
| XWA → Minneapolis (MSP) | 80.0% | 1.7% | 1,039 |