Williston, ND

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 from XWA is to XWA (Williston), 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.