Williston Basin International in January 2025

66.3%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 January 2025, reporting carriers scheduled 178 domestic departures from Williston Basin International (XWA). 66.3% left less than 15 minutes late and 62.9% reached their destination on time; 0.6% were cancelled.

Nationally that month, 79.3% of flights departed on time and 78.6% arrived on time, so XWA departures were 13.0 points below the national departure figure.

A year earlier, in January 2024, the airport had 149 departures with 70.5% leaving on time: a change of −4.2 points, with flights up 19%.

Flights arriving at XWA that month were on time 64.6% of the time (178 scheduled arrivals).

Of the delay minutes that carriers assigned to a BTS cause category that month, air carrier 50%, national aviation system 22% and late-arriving aircraft 15%.

On time 62.9%
Arrived 15+ minutes late 36.0%
Cancelled 0.6%
Diverted 0.6%

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

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

Measure	Jan 2025	Jan 2024	XWA, 12 months to Jul 2026	All reported flights, Jan 2025
Departed on time	66.3%	70.5%	79.1%	79.3%
Arrived on time	62.9%	71.8%	76.5%	78.6%
Cancelled	0.6%	5.4%	1.5%	3.0%
Average departure delay (late minutes only)	33.1 min	31.6 min	25.4 min	14.0 min
Scheduled departures a day	6	5	7	17,992
Scheduled departures	178	149	2,411	539,747

Airlines that month

Reporting carrier	Flights	Share	On time	Avg arrival delay	Cancelled
OO SkyWest Airlines	178	100%	62.9%	25.3 min	0.6%

Busiest routes that month

Route	Cities	Flights	On time	Avg arrival delay	Cancelled
XWA–DEN	Williston to Denver	111	63.1%	12.6 min	0.9%
XWA–MSP	Williston to Minneapolis	67	62.7%	45.8 min	0.0%

By scheduled departure hour

100

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

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

Delay causes

BTS cause category	Share of delay minutes	National, Jan 2025	Minutes
Air carrier	49.9%	36.2%	2,994
Late-arriving aircraft	15.0%	34.7%	902
National Aviation System	21.6%	19.9%	1,297
Extreme weather	13.5%	9.1%	811
Security	0.0%	0.2%	0

6,004 delay minutes on 64 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 January 2025?

66.3% of 178 scheduled domestic departures left less than 15 minutes late, and 62.9% reached their destination on time. The national figures that month were 79.3% and 78.6%.

How does that compare with a year earlier?

In January 2024, 70.5% of 149 departures left on time and 5.4% were cancelled, against 66.3% and 0.6% in January 2025.

Provenance

Source: Bureau of Transportation Statistics, Reporting Carrier On-Time Performance, file for January 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.