Williston Basin International in October 2025

91.9%departed on time

BTS: A flight is counted as on time if it arrived less than 15 minutes after its scheduled time. Only carriers with at least 0.5 percent of domestic scheduled passenger revenue report.

In October 2025, reporting carriers scheduled 209 domestic departures from Williston Basin International (XWA). 91.9% left less than 15 minutes late and 85.6% reached their destination on time; 0.0% were cancelled.

Nationally that month, 80.0% of flights departed on time and 79.1% arrived on time, so XWA departures were 11.9 points above the national departure figure.

A year earlier, in October 2024, the airport had 186 departures with 90.3% leaving on time: a change of +1.6 points, with flights up 12%.

Flights arriving at XWA that month were on time 83.7% of the time (209 scheduled arrivals).

Of the delay minutes that carriers assigned to a BTS cause category that month, air carrier 54%, late-arriving aircraft 20% and national aviation system 18%.

On time 85.6%
Arrived 15+ minutes late 14.4%
Cancelled 0.0%
Diverted 0.0%

Every scheduled departure from XWA in October 2025, judged by arrival at the destination.

October 2025 against a year earlier, the airport's year and the nation

Measure	Oct 2025	Oct 2024	XWA, 12 months to Jul 2026	All reported flights, Oct 2025
Departed on time	91.9%	90.3%	79.1%	80.0%
Arrived on time	85.6%	90.3%	76.5%	79.1%
Cancelled	0.0%	1.1%	1.5%	0.5%
Average departure delay (late minutes only)	7.6 min	16.1 min	25.4 min	13.9 min
Scheduled departures a day	7	6	7	20,195
Scheduled departures	209	186	2,411	605,844

Airlines that month

Reporting carrier	Flights	Share	On time	Avg arrival delay	Cancelled
OO SkyWest Airlines	209	100%	85.6%	-2.7 min	0.0%

Busiest routes that month

Route	Cities	Flights	On time	Avg arrival delay	Cancelled
XWA–DEN	Williston to Denver	120	82.5%	0.6 min	0.0%
XWA–MSP	Williston to Minneapolis	89	89.9%	-7.3 min	0.0%

By scheduled departure hour

On-time share:under 62%6270768288% and over

Share of departures that left less than 15 minutes late, by scheduled hour (local time), October 2025.

Delay causes

BTS cause category	Share of delay minutes	National, Oct 2025	Minutes
Air carrier	54.2%	34.0%	938
Late-arriving aircraft	19.7%	39.7%	342
National Aviation System	17.7%	22.9%	306
Extreme weather	8.4%	3.3%	146
Security	0.0%	0.1%	0

1,732 delay minutes on 30 flights that arrived 15 or more minutes late and carried a cause report. Carriers assign the categories; see what each category means.

Questions and answers

How many flights left XWA on time in October 2025?

91.9% of 209 scheduled domestic departures left less than 15 minutes late, and 85.6% reached their destination on time. The national figures that month were 80.0% and 79.1%.

How does that compare with a year earlier?

In October 2024, 90.3% of 186 departures left on time and 1.1% were cancelled, against 91.9% and 0.0% in October 2025.

Provenance

Source: Bureau of Transportation Statistics, Reporting Carrier On-Time Performance, file for October 2025; public domain. Domestic scheduled flights by reporting carriers, totals and averages only. The site's data runs through July 2026. Full record for XWA · methodology · corrections.