Bismarck Municipal in June 2025

78.5%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 June 2025, reporting carriers scheduled 368 domestic departures from Bismarck Municipal (BIS). 78.5% left less than 15 minutes late and 74.7% reached their destination on time; 0.5% were cancelled.

Nationally that month, 71.4% of flights departed on time and 70.3% arrived on time, so BIS departures were 7.1 points above the national departure figure.

A year earlier, in June 2024, the airport had 343 departures with 77.6% leaving on time: a change of +0.9 points, with flights up 7%.

Flights arriving at BIS that month were on time 72.0% of the time (368 scheduled arrivals).

Of the delay minutes that carriers assigned to a BTS cause category that month, national aviation system 34%, air carrier 30% and late-arriving aircraft 21%.

On time 74.7%
Arrived 15+ minutes late 23.9%
Cancelled 0.5%
Diverted 0.8%

Every scheduled departure from BIS in June 2025, judged by arrival at the destination.

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

Measure	Jun 2025	Jun 2024	BIS, 12 months to Jul 2026	All reported flights, Jun 2025
Departed on time	78.5%	77.6%	81.5%	71.4%
Arrived on time	74.7%	70.6%	79.5%	70.3%
Cancelled	0.5%	0.9%	0.7%	1.6%
Average departure delay (late minutes only)	18.2 min	21.2 min	18.7 min	22.1 min
Scheduled departures a day	12	11	11	20,386
Scheduled departures	368	343	3,874	611,575

Airlines that month

Reporting carrier	Flights	Share	On time	Avg arrival delay	Cancelled
OO SkyWest Airlines	219	60%	74.0%	12.4 min	0.9%
MQ Envoy Air	86	23%	69.8%	14.8 min	0.0%
DL Delta Air Lines	37	10%	86.5%	1.0 min	0.0%
G4 Allegiant Air	26	7%	80.8%	2.1 min	0.0%

Busiest routes that month

Route	Cities	Flights	On time	Avg arrival delay	Cancelled
BIS–DEN	Bismarck/Mandan to Denver	150	66.7%	18.6 min	1.3%
BIS–MSP	Bismarck/Mandan to Minneapolis	106	88.7%	-0.1 min	0.0%
BIS–DFW	Bismarck/Mandan to Dallas/Fort Worth	60	73.3%	12.0 min	0.0%
BIS–ORD	Bismarck/Mandan to Chicago	26	61.5%	21.4 min	0.0%
BIS–AZA	Bismarck/Mandan to Phoenix	17	82.4%	-1.2 min	0.0%
BIS–LAS	Bismarck/Mandan to Las Vegas	9	77.8%	8.2 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), June 2025.

Delay causes

BTS cause category	Share of delay minutes	National, Jun 2025	Minutes
Air carrier	30.3%	31.6%	2,074
Late-arriving aircraft	21.1%	40.6%	1,448
National Aviation System	33.8%	20.9%	2,312
Extreme weather	14.8%	6.9%	1,013
Security	0.0%	0.2%	0

6,847 delay minutes on 88 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 BIS on time in June 2025?

78.5% of 368 scheduled domestic departures left less than 15 minutes late, and 74.7% reached their destination on time. The national figures that month were 71.4% and 70.3%.

How does that compare with a year earlier?

In June 2024, 77.6% of 343 departures left on time and 0.9% were cancelled, against 78.5% and 0.5% in June 2025.

Provenance

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