Airport · XWA · Williston, North Dakota
Williston, ND
Williston, ND posts below-median on-time performance among the 382 tracked U.S. airports, as a mid-size U.S. airport. According to the U.S. DOT Bureau of Transportation Statistics, drawn from 18,596 flights (2020–2025); its biggest delay driver is carrier.
Data updated 2026-06-13
- 82.4%
- On-time
- Top 62%
- on-time, US airports
- 108 min
- Delay when late
- 1.22%
- Cancelled
Key Performance Metrics
Total Flights
18,596
Best Month
Sep 94.4%
Worst Month
Dec 86.4%
Delayed
3,282
Cancelled
227
XWA on-time rate vs. the national average
Ahead of the U.S. average across all 382 tracked airports.
Where XWA sits among all 382 tracked airports
XWA's 82.4% on-time rate falls in the 80-85% band, the 192-airport band it shares.
National on-time-rate distribution
- 60-65% 1
1 airport between 60% and 65% on-time
1 airports
- 65-70% 4
4 airports between 65% and 70% on-time
4 airports
- 70-75% 9
9 airports between 70% and 75% on-time
9 airports
- 75-80% 48
48 airports between 75% and 80% on-time
48 airports
- 80-85%
192 airports between 80% and 85% on-time
192 airports
- 85-90%
116 airports between 85% and 90% on-time
116 airports
- 90-95% 12
12 airports between 90% and 95% on-time
12 airports
What this shows XWA is marked in the 80-85% band.
Delay Cause Breakdown
Top delay cause: Carrier. Total delay minutes: 202,451.
XWA - seasonal on-time pattern
Best: September (94.4%) · worst: December (86.4%)
Seasonal Performance Patterns
Monthly averages across all years of data. Best month: September (94.4% on-time). Most delays: December (86.4% on-time).
| Month | Avg Flights | Avg Delayed | Avg Cancelled | On-Time % |
|---|---|---|---|---|
| December | 273 | 71 | 5 | 86.4% |
| November | 265 | 45 | 4 | 91.1% |
| October | 292 | 39 | 1 | 93.7% |
| September | 281 | 31 | 0 | 94.4% |
| August | 288 | 48 | 1 | 92.2% |
| July | 276 | 61 | 1 | 90% |
| June | 265 | 52 | 1 | 91.2% |
| May | 250 | 35 | 3 | 93.6% |
| April | 233 | 31 | 6 | 93.6% |
| March | 241 | 36 | 4 | 93.4% |
| February | 213 | 46 | 4 | 89.8% |
| January | 224 | 55 | 7 | 87.9% |
Year-Over-Year Performance
Annual flight volume and on-time trends at XWA.
XWA - on-time rate by year
2020–2025, year-over-year trend.
| Year | Flights | Delayed | Cancelled | On-Time % |
|---|---|---|---|---|
| 2025 | 4,752 | 483 | 24 | 89.8% |
| 2024 | 3,945 | 332 | 31 | 91.6% |
| 2023 | 3,374 | 290 | 43 | 91.4% |
| 2022 | 3,008 | 209 | 70 | 93.1% |
| 2021 | 2,218 | 208 | 27 | 90.6% |
| 2020 | 1,299 | 59 | 32 | 95.5% |
Cancellation & Diversion Analysis
Flight disruption statistics for Williston, ND.
Cancellation Rate
1.22%
227 of 18,596 flights
Diversion Rate
0.23%
43 of 18,596 flights
Delay Rate
17.6%
3,282 of 18,596 flights
Monthly Performance
Recent 24 months of flight data.
| Period | Flights | Dep Delayed | Arr Delayed | Cancelled | Diverted |
|---|---|---|---|---|---|
| Dec 2025 | 405 | 79 | 81 | 1 | 1 |
| Nov 2025 | 394 | 23 | 33 | 7 | 0 |
| Oct 2025 | 418 | 17 | 34 | 0 | 0 |
| Sep 2025 | 446 | 22 | 20 | 0 | 1 |
| Aug 2025 | 476 | 49 | 50 | 2 | 3 |
| Jul 2025 | 432 | 51 | 59 | 2 | 4 |
| Jun 2025 | 420 | 44 | 56 | 2 | 3 |
| May 2025 | 385 | 30 | 36 | 1 | 4 |
| Apr 2025 | 352 | 38 | 39 | 2 | 3 |
| Mar 2025 | 352 | 27 | 28 | 0 | 2 |
| Feb 2025 | 316 | 44 | 41 | 6 | 0 |
| Jan 2025 | 356 | 59 | 62 | 1 | 1 |
| Dec 2024 | 356 | 44 | 44 | 1 | 0 |
| Nov 2024 | 337 | 35 | 30 | 6 | 1 |
| Oct 2024 | 372 | 16 | 20 | 2 | 1 |
| Sep 2024 | 344 | 20 | 15 | 0 | 0 |
| Aug 2024 | 338 | 28 | 30 | 0 | 1 |
| Jul 2024 | 330 | 39 | 43 | 0 | 0 |
| Jun 2024 | 340 | 37 | 48 | 0 | 1 |
| May 2024 | 356 | 17 | 23 | 1 | 0 |
| Apr 2024 | 292 | 13 | 16 | 0 | 0 |
| Mar 2024 | 300 | 21 | 30 | 5 | 0 |
| Feb 2024 | 282 | 26 | 26 | 8 | 0 |
| Jan 2024 | 298 | 36 | 37 | 8 | 0 |
Top Routes from XWA
Busiest routes to and from Williston, ND.
| Route | Flights | On-Time | Distance |
|---|---|---|---|
| DEN (Denver) → XWA (Williston) | 5,785 | 80.6% | 582 mi |
| XWA (Williston) → DEN (Denver) | 5,784 | 78.4% | 582 mi |
| XWA (Williston) → MSP (Minneapolis) | 3,413 | 82.3% | 553 mi |
| MSP (Minneapolis) → XWA (Williston) | 3,412 | 83.3% | 553 mi |
Airports With a Similar On-Time Rate
Other U.S. airports nationwide whose on-time rate is closest to Williston, ND's 82.4%.
Other Airports in North Dakota
Compare performance with other North Dakota airports.
Fargo, ND
Fargo · 74,155 flights
Bismarck/Mandan, ND
Bismarck/Mandan · 45,937 flights
Minot, ND
Minot · 29,078 flights
Grand Forks, ND
Grand Forks · 14,798 flights
Jamestown, ND
Jamestown · 9,384 flights
Devils Lake, ND
Devils Lake · 7,845 flights
Dickinson, ND
Dickinson · 4,996 flights
Keep exploring
More flight data around Williston, ND.
North Dakota flight data
Statewide on-time and delay aggregates, plus every reporting airport in North Dakota.
View ND data →Airport rankings
See where XWA sits among U.S. airports on on-time rate and average delay.
Best on-time airports →Compare airports
Put XWA head-to-head with another airport on delays and reliability.
Open comparison tool →What the Data Says About XWA
Williston, ND in Williston, North Dakota handled 18,596 flights in the Bureau of Transportation Statistics dataset between 2020 and 2025, posting a 82.4% on-time departure rate. Of those flights, 3,282 experienced delays, 227 were cancelled, and 43 were diverted. The cancellation rate works out to 1.22%, the diversion rate to 0.23%, and the average delay when departures run late is 107.6 minutes. These figures are the baseline for comparing XWA against other airports in the same state and nationally.
Breaking down what drives delays at XWA, Carrier leads the pack. Carrier accounts for 57.1% of total delay minutes, followed by Weather at 17.3% and Late Aircraft at 13.4%. Weather contributes 17.3% of delay minutes at this airport, while security holds the smallest share at 0.3%. Travelers often overestimate the weather share; the BTS categorization shows late-arriving aircraft and carrier operations as the larger contributors.
Seasonally, September runs the cleanest at XWA with a 94.4% on-time rate, while December is the roughest at 86.4% - a 8-point swing between best and worst month. Volume peaks in October, when average flights hit 292. The busiest route connecting XWA is to DEN (Denver), with 5,785 flights at a 80.6% on-time rate. Combine these numbers - 82.4% on-time, 107.6-minute average delay, 1.22% cancellation rate, and you have a concrete picture of departure reliability at Williston, ND.
Frequently Asked Questions
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What is the average delay time at XWA? ▼
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How many routes operate from XWA? ▼
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Flight Guides
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Using XWA's data
An airport-level on-time rate is a starting point, not a guarantee for your specific flight.
- Check the busiest route from XWA before you book a connection. See top routes
- Travel in September rather than December if your dates are flexible. Seasonal patterns
- Scores vary by airline and route within the same airport; check the specific carrier you're flying. Browse airlines
On-time rate reflects the BTS historical average across all reporting carriers at this airport, not any single flight or airline.
Related
Source: U.S. Bureau of Transportation Statistics (BTS) Airline on-time performance and operational reliability · 2025
Every figure on PlainFlights is rendered directly from BTS On-Time Performance data, no number is typed in by an editor. Airport figures are computed directly from BTS On-Time Performance data, no figure is typed in by an editor. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error.