Williston Basin International in May 2024

89.9%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 May 2024, reporting carriers scheduled 178 domestic departures from Williston Basin International (XWA). 89.9% left less than 15 minutes late and 88.2% reached their destination on time; 0.6% were cancelled.

Nationally that month, 73.4% of flights departed on time and 72.3% arrived on time, so XWA departures were 16.5 points above the national departure figure.

Flights arriving at XWA that month were on time 86.0% of the time (178 scheduled arrivals).

Of the delay minutes that carriers assigned to a BTS cause category that month, air carrier 68%, national aviation system 18% and late-arriving aircraft 8%.

On time 88.2%
Arrived 15+ minutes late 11.2%
Cancelled 0.6%
Diverted 0.0%

Every scheduled departure from XWA in May 2024, judged by arrival at the destination.

May 2024 against a year earlier, the airport's year and the nation

Measure	May 2024	Year earlier	XWA, 12 months to Jul 2026	All reported flights, May 2024
Departed on time	89.9%	—	79.1%	73.4%
Arrived on time	88.2%	—	76.5%	72.3%
Cancelled	0.6%	—	1.5%	1.4%
Average departure delay (late minutes only)	13.7 min	—	25.4 min	20.8 min
Scheduled departures a day	6	—	7	20,325
Scheduled departures	178	—	2,411	609,743

Airlines that month

Reporting carrier	Flights	Share	On time	Avg arrival delay	Cancelled
OO SkyWest Airlines	178	100%	88.2%	0.5 min	0.6%

Busiest routes that month

Route	Cities	Flights	On time	Avg arrival delay	Cancelled
XWA–DEN	Williston to Denver	116	86.2%	3.4 min	0.9%
XWA–MSP	Williston to Minneapolis	62	91.9%	-5.1 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), May 2024.

Delay causes

BTS cause category	Share of delay minutes	National, May 2024	Minutes
Air carrier	67.7%	29.8%	1,535
Late-arriving aircraft	8.0%	43.0%	182
National Aviation System	18.0%	20.1%	407
Extreme weather	6.3%	7.0%	143
Security	0.0%	0.1%	0

2,267 delay minutes on 20 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 May 2024?

89.9% of 178 scheduled domestic departures left less than 15 minutes late, and 88.2% reached their destination on time. The national figures that month were 73.4% and 72.3%.

How does that compare with a year earlier?

May 2023 is outside the 36 months on file, or the airport had too few reported flights that month.

Provenance

Source: Bureau of Transportation Statistics, Reporting Carrier On-Time Performance, file for May 2024; 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.