Bismarck Municipal in December 2024

76.1%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 December 2024, reporting carriers scheduled 389 domestic departures from Bismarck Municipal (BIS). 76.1% left less than 15 minutes late and 73.0% reached their destination on time; 0.5% were cancelled.

Nationally that month, 77.8% of flights departed on time and 78.1% arrived on time, so BIS departures were 1.7 points below the national departure figure.

A year earlier, in December 2023, the airport had 282 departures with 86.9% leaving on time: a change of −10.8 points, with flights up 38%.

Flights arriving at BIS that month were on time 78.1% of the time (388 scheduled arrivals).

Of the delay minutes that carriers assigned to a BTS cause category that month, air carrier 60%, extreme weather 19% and national aviation system 14%.

On time 73.0%
Arrived 15+ minutes late 26.2%
Cancelled 0.5%
Diverted 0.3%

Every scheduled departure from BIS in December 2024, judged by arrival at the destination.

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

Measure	Dec 2024	Dec 2023	BIS, 12 months to Jul 2026	All reported flights, Dec 2024
Departed on time	76.1%	86.9%	81.5%	77.8%
Arrived on time	73.0%	88.3%	79.5%	78.1%
Cancelled	0.5%	2.8%	0.7%	0.7%
Average departure delay (late minutes only)	21.3 min	8.6 min	18.7 min	16.6 min
Scheduled departures a day	13	9	11	19,686
Scheduled departures	389	282	3,874	590,581

Airlines that month

Reporting carrier	Flights	Share	On time	Avg arrival delay	Cancelled
OO SkyWest Airlines	242	62%	74.8%	13.8 min	0.4%
MQ Envoy Air	61	16%	63.9%	11.6 min	1.6%
G4 Allegiant Air	55	14%	76.4%	-6.1 min	0.0%
DL Delta Air Lines	31	8%	71.0%	10.8 min	0.0%

Busiest routes that month

Route	Cities	Flights	On time	Avg arrival delay	Cancelled
BIS–MSP	Bismarck/Mandan to Minneapolis	148	67.6%	27.9 min	0.7%
BIS–DEN	Bismarck/Mandan to Denver	125	82.4%	-3.5 min	0.0%
BIS–DFW	Bismarck/Mandan to Dallas/Fort Worth	61	63.9%	11.6 min	1.6%
BIS–AZA	Bismarck/Mandan to Phoenix	24	62.5%	9.2 min	0.0%
BIS–LAS	Bismarck/Mandan to Las Vegas	15	86.7%	-14.5 min	0.0%
BIS–PIE	Bismarck/Mandan to St. Petersburg	9	88.9%	-40.0 min	0.0%
BIS–SFB	Bismarck/Mandan to Sanford	7	85.7%	2.6 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), December 2024.

Delay causes

BTS cause category	Share of delay minutes	National, Dec 2024	Minutes
Air carrier	59.5%	34.3%	4,890
Late-arriving aircraft	7.5%	40.2%	619
National Aviation System	14.0%	17.8%	1,154
Extreme weather	18.8%	7.5%	1,548
Security	0.1%	0.2%	8

8,219 delay minutes on 102 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 December 2024?

76.1% of 389 scheduled domestic departures left less than 15 minutes late, and 73.0% reached their destination on time. The national figures that month were 77.8% and 78.1%.

How does that compare with a year earlier?

In December 2023, 86.9% of 282 departures left on time and 2.8% were cancelled, against 76.1% and 0.5% in December 2024.

Provenance

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