Williston Basin International in March 2025

84.7%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 March 2025, reporting carriers scheduled 176 domestic departures from Williston Basin International (XWA). 84.7% left less than 15 minutes late and 80.7% reached their destination on time; 0.0% were cancelled.

Nationally that month, 79.9% of flights departed on time and 79.3% arrived on time, so XWA departures were 4.8 points above the national departure figure.

A year earlier, in March 2024, the airport had 150 departures with 82.7% leaving on time: a change of +2.0 points, with flights up 17%.

Flights arriving at XWA that month were on time 83.0% of the time (176 scheduled arrivals).

Of the delay minutes that carriers assigned to a BTS cause category that month, air carrier 55%, national aviation system 25% and extreme weather 13%.

On time 80.7%
Arrived 15+ minutes late 18.2%
Cancelled 0.0%
Diverted 1.1%

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

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

Measure	Mar 2025	Mar 2024	XWA, 12 months to Jul 2026	All reported flights, Mar 2025
Departed on time	84.7%	82.7%	79.1%	79.9%
Arrived on time	80.7%	76.7%	76.5%	79.3%
Cancelled	0.0%	3.3%	1.5%	1.2%
Average departure delay (late minutes only)	15.6 min	30.5 min	25.4 min	14.9 min
Scheduled departures a day	6	5	7	20,029
Scheduled departures	176	150	2,411	600,872

Airlines that month

Reporting carrier	Flights	Share	On time	Avg arrival delay	Cancelled
OO SkyWest Airlines	176	100%	80.7%	-0.5 min	0.0%

Busiest routes that month

Route	Cities	Flights	On time	Avg arrival delay	Cancelled
XWA–DEN	Williston to Denver	114	80.7%	-4.1 min	0.0%
XWA–MSP	Williston to Minneapolis	62	80.6%	6.0 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), March 2025.

Delay causes

BTS cause category	Share of delay minutes	National, Mar 2025	Minutes
Air carrier	54.7%	33.0%	1,496
Late-arriving aircraft	7.6%	39.2%	207
National Aviation System	24.6%	21.9%	674
Extreme weather	13.2%	5.9%	360
Security	0.0%	0.1%	0

2,737 delay minutes on 32 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 March 2025?

84.7% of 176 scheduled domestic departures left less than 15 minutes late, and 80.7% reached their destination on time. The national figures that month were 79.9% and 79.3%.

How does that compare with a year earlier?

In March 2024, 82.7% of 150 departures left on time and 3.3% were cancelled, against 84.7% and 0.0% in March 2025.

Provenance

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