Bismarck Municipal in January 2026

75.9%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 January 2026, reporting carriers scheduled 266 domestic departures from Bismarck Municipal (BIS). 75.9% left less than 15 minutes late and 74.1% reached their destination on time; 1.9% were cancelled.

Nationally that month, 75.6% of flights departed on time and 75.3% arrived on time, so BIS departures were level with the national departure figure.

A year earlier, in January 2025, the airport had 366 departures with 72.7% leaving on time: a change of +3.2 points, with flights down 27%.

Flights arriving at BIS that month were on time 75.9% of the time (266 scheduled arrivals).

Of the delay minutes that carriers assigned to a BTS cause category that month, air carrier 61%, national aviation system 16% and extreme weather 11%.

On time 74.1%
Arrived 15+ minutes late 24.1%
Cancelled 1.9%
Diverted 0.0%

Every scheduled departure from BIS in January 2026, judged by arrival at the destination.

January 2026 against a year earlier, the airport's year and the nation

Measure	Jan 2026	Jan 2025	BIS, 12 months to Jul 2026	All reported flights, Jan 2026
Departed on time	75.9%	72.7%	81.5%	75.6%
Arrived on time	74.1%	71.9%	79.5%	75.3%
Cancelled	1.9%	0.5%	0.7%	4.7%
Average departure delay (late minutes only)	24.6 min	31.8 min	18.7 min	16.7 min
Scheduled departures a day	9	12	11	18,133
Scheduled departures	266	366	3,874	544,003

Airlines that month

Reporting carrier	Flights	Share	On time	Avg arrival delay	Cancelled
OO SkyWest Airlines	133	50%	74.4%	13.7 min	0.8%
MQ Envoy Air	66	25%	78.8%	0.2 min	6.1%
G4 Allegiant Air	36	14%	63.9%	26.7 min	0.0%
DL Delta Air Lines	31	12%	74.2%	7.2 min	0.0%

Busiest routes that month

Route	Cities	Flights	On time	Avg arrival delay	Cancelled
BIS–DEN	Bismarck/Mandan to Denver	119	73.9%	13.4 min	0.8%
BIS–DFW	Bismarck/Mandan to Dallas/Fort Worth	61	77.0%	2.0 min	6.6%
BIS–MSP	Bismarck/Mandan to Minneapolis	45	75.6%	9.9 min	0.0%
BIS–AZA	Bismarck/Mandan to Phoenix	28	67.9%	11.5 min	0.0%
BIS–LAS	Bismarck/Mandan to Las Vegas	8	50.0%	80.0 min	0.0%
BIS–ORD	Bismarck/Mandan to Chicago	5	100.0%	-20.8 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 2026.

Delay causes

BTS cause category	Share of delay minutes	National, Jan 2026	Minutes
Air carrier	60.8%	37.3%	3,901
Late-arriving aircraft	8.6%	35.0%	550
National Aviation System	15.8%	18.0%	1,013
Extreme weather	10.9%	9.6%	702
Security	3.9%	0.1%	252

6,418 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 BIS on time in January 2026?

75.9% of 266 scheduled domestic departures left less than 15 minutes late, and 74.1% reached their destination on time. The national figures that month were 75.6% and 75.3%.

How does that compare with a year earlier?

In January 2025, 72.7% of 366 departures left on time and 0.5% were cancelled, against 75.9% and 1.9% in January 2026.

Provenance

Source: Bureau of Transportation Statistics, Reporting Carrier On-Time Performance, file for January 2026; 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.