Bismarck Municipal in January 2025

72.7%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 January 2025, reporting carriers scheduled 366 domestic departures from Bismarck Municipal (BIS). 72.7% left less than 15 minutes late and 71.9% reached their destination on time; 0.5% were cancelled.

Nationally that month, 79.3% of flights departed on time and 78.6% arrived on time, so BIS departures were 6.6 points below the national departure figure.

A year earlier, in January 2024, the airport had 277 departures with 74.7% leaving on time: a change of −2.0 points, with flights up 32%.

Flights arriving at BIS that month were on time 76.0% of the time (366 scheduled arrivals).

Of the delay minutes that carriers assigned to a BTS cause category that month, air carrier 58%, late-arriving aircraft 21% and national aviation system 12%.

On time 71.9%
Arrived 15+ minutes late 27.3%
Cancelled 0.5%
Diverted 0.3%

Every scheduled departure from BIS 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	BIS, 12 months to Jul 2026	All reported flights, Jan 2025
Departed on time	72.7%	74.7%	81.5%	79.3%
Arrived on time	71.9%	72.9%	79.5%	78.6%
Cancelled	0.5%	3.6%	0.7%	3.0%
Average departure delay (late minutes only)	31.8 min	37.0 min	18.7 min	14.0 min
Scheduled departures a day	12	9	11	17,992
Scheduled departures	366	277	3,874	539,747

Airlines that month

Reporting carrier	Flights	Share	On time	Avg arrival delay	Cancelled
OO SkyWest Airlines	239	65%	68.2%	30.6 min	0.4%
MQ Envoy Air	62	17%	69.4%	10.7 min	1.6%
G4 Allegiant Air	46	13%	87.0%	-19.5 min	0.0%
DL Delta Air Lines	19	5%	89.5%	-5.5 min	0.0%

Busiest routes that month

Route	Cities	Flights	On time	Avg arrival delay	Cancelled
BIS–MSP	Bismarck/Mandan to Minneapolis	133	78.2%	22.4 min	0.0%
BIS–DEN	Bismarck/Mandan to Denver	124	61.3%	33.9 min	0.8%
BIS–DFW	Bismarck/Mandan to Dallas/Fort Worth	62	69.4%	10.7 min	1.6%
BIS–AZA	Bismarck/Mandan to Phoenix	28	89.3%	-23.3 min	0.0%
BIS–LAS	Bismarck/Mandan to Las Vegas	9	77.8%	-1.4 min	0.0%
BIS–SFB	Bismarck/Mandan to Sanford	5	80.0%	-7.6 min	0.0%
BIS–PIE	Bismarck/Mandan to St. Petersburg	4	100.0%	-49.0 min	0.0%
BIS–DIK	Bismarck/Mandan to Dickinson	1	0.0%	—	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	57.5%	36.2%	6,402
Late-arriving aircraft	20.5%	34.7%	2,283
National Aviation System	12.0%	19.9%	1,337
Extreme weather	9.4%	9.1%	1,048
Security	0.6%	0.2%	65

11,135 delay minutes on 100 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 January 2025?

72.7% of 366 scheduled domestic departures left less than 15 minutes late, and 71.9% 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, 74.7% of 277 departures left on time and 3.6% were cancelled, against 72.7% and 0.5% 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 BIS · methodology · corrections.