Airport reliability
Williston (XWA) on-time performance
How reliably flights leave Williston, ND (XWA) and reach their destinations, by airline, departure hour and month, September 2025 to August 2026.
Williston, ND2,347 departures in 12 months
- Departures on time
- 76.7% U.S. average 75.6%
- Cancelled
- 1.5% U.S. average 1.9%
- 60+ minutes late
- 10.4% U.S. average 8.1%
- Scheduled departures
- 2,347 12 months
What this means
XWA departures beat the U.S. average.
- 76.7% of the 2,347 scheduled departures from Williston (XWA) arrived at their destination on time, 1.1 points higher than the U.S. average of 75.6%.
- 1.5% of departures were cancelled (U.S. average 1.9%), and 10.4% arrived an hour or more late.
- Flights arriving at XWA were on time 75.6% of the time.
- Over the last 3 years, September was the most reliable month for departures from XWA (86.2% on time) and January the least reliable (67.5%).
- Cancellations peaked in January, when 4.5% of flights were cancelled.
- Flights scheduled to depart 7 am to 8 am were the most punctual (83.8% on time); flights scheduled to depart 6 pm to 7 pm were the least (63.7%).
Airlines at XWA
Ranked by on-time arrival
| Airline | On time | Cancelled | 60+ min late | Avg delay when late | Departures |
|---|---|---|---|---|---|
| SkyWest AirlinesSold as United Express, Delta Connection, American Eagle, Alaska | 76.7% | 1.5% | 10.4% | 110 min | 2,347 |
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On-time rate by departure hour
Share of scheduled flights on time XWA average 76.7%
Show as table
| Period | On time | Flights |
|---|---|---|
| Departing before 6 am | 79.6% | 294 |
| Departing 6 am to 7 am | 80.2% | 91 |
| Departing 7 am to 8 am | 83.8% | 364 |
| Departing 10 am to 11 am | 74.7% | 83 |
| Departing 11 am to noon | 80.8% | 224 |
| Departing noon to 1 pm | 78.8% | 330 |
| Departing 1 pm to 2 pm | 69.5% | 82 |
| Departing 2 pm to 3 pm | 79.7% | 74 |
| Departing 3 pm to 4 pm | 74.7% | 525 |
| Departing 5 pm to 6 pm | Insufficient sample | 35 |
| Departing 6 pm to 7 pm | 63.7% | 245 |
Best and worst months at XWA
Share of scheduled flights on time 12-month average 76.7%
Show as table
| Period | On time | Flights |
|---|---|---|
| January | 67.5% | 511 |
| February | 73.6% | 477 |
| March | 75.7% | 534 |
| April | 79.4% | 495 |
| May | 83.7% | 571 |
| June | 73.1% | 577 |
| July | 71.1% | 581 |
| August | 77.8% | 581 |
| September | 86.2% | 545 |
| October | 82.5% | 550 |
| November | 71.9% | 501 |
| December | 70.2% | 533 |
Month by month, last 12 months
Share of scheduled flights on time U.S. average 75.6%
Show as table
| Period | On time | Flights |
|---|---|---|
| Sep 2025 | 87.4% | 223 |
| Oct 2025 | 85.6% | 209 |
| Nov 2025 | 78.2% | 197 |
| Dec 2025 | 59.1% | 203 |
| Jan 2026 | 68.5% | 184 |
| Feb 2026 | 75.3% | 178 |
| Mar 2026 | 70.7% | 208 |
| Apr 2026 | 76.9% | 173 |
| May 2026 | 88.6% | 201 |
| Jun 2026 | 76.1% | 197 |
| Jul 2026 | 73.5% | 200 |
| Aug 2026 | 78.2% | 174 |
Busiest routes from XWA
| To | On time | Cancelled | Airlines | Flights |
|---|---|---|---|---|
| Denver (DEN) | 74.9% | 1.3% | 1 | 1,333 |
| Minneapolis (MSP) | 79.1% | 1.8% | 1 | 1,013 |
Sources & data dates
- Source
- U.S. DOT Bureau of Transportation Statistics, Reporting Carrier On-Time Performance (1987-present)
- Period
- September 2025 to August 2026 (12 months); month-of-year patterns September 2023 to August 2026
- Data through
- August 2026
- Processed
- 2026-11-03
- Scope
- Scheduled nonstop domestic departures from Williston, ND (XWA) by airlines that report to the DOT.
- Method
- Rates use all scheduled flights as the denominator; cancelled and diverted flights count as not on time. Figures based on fewer than 50 scheduled flights are suppressed. Full methodology.