Bozeman Yellowstone International in December 2023

87.5%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 December 2023, reporting carriers scheduled 813 domestic departures from Bozeman Yellowstone International (BZN). 87.5% left less than 15 minutes late and 87.0% reached their destination on time; 1.1% were cancelled.

Nationally that month, 83.1% of flights departed on time and 83.8% arrived on time, so BZN departures were 4.4 points above the national departure figure.

Flights arriving at BZN that month were on time 86.5% of the time (815 scheduled arrivals).

Of the delay minutes that carriers assigned to a BTS cause category that month, late-arriving aircraft 44%, air carrier 38% and national aviation system 17%.

On time 87.0%
Arrived 15+ minutes late 11.8%
Cancelled 1.1%
Diverted 0.1%

Every scheduled departure from BZN in December 2023, judged by arrival at the destination.

December 2023 against a year earlier, the airport's year and the nation

Measure	Dec 2023	Year earlier	BZN, 12 months to Jul 2026	All reported flights, Dec 2023
Departed on time	87.5%	—	79.6%	83.1%
Arrived on time	87.0%	—	79.5%	83.8%
Cancelled	1.1%	—	0.8%	0.4%
Average departure delay (late minutes only)	10.7 min	—	17.2 min	11.6 min
Scheduled departures a day	27	—	32	19,013
Scheduled departures	813	—	11,804	570,394

Airlines that month

Reporting carrier	Flights	Share	On time	Avg arrival delay	Cancelled
OO SkyWest Airlines	190	23%	84.7%	0.0 min	0.5%
WN Southwest Airlines	180	22%	86.1%	-3.4 min	1.7%
DL Delta Air Lines	161	20%	91.3%	-6.4 min	0.0%
UA United Airlines	152	19%	88.2%	-0.5 min	2.0%
AA American Airlines	54	7%	88.9%	9.1 min	0.0%
G4 Allegiant Air	36	4%	83.3%	2.0 min	5.6%
AS Alaska Airlines	26	3%	92.3%	-18.8 min	0.0%
B6 JetBlue Airways	12	1%	58.3%	36.8 min	0.0%
MQ Envoy Air	2	0%	50.0%	36.0 min	0.0%

Busiest routes that month

Route	Cities	Flights	On time	Avg arrival delay	Cancelled
BZN–DEN	Bozeman to Denver	221	87.8%	-3.8 min	1.4%
BZN–SLC	Bozeman to Salt Lake City	84	91.7%	-7.9 min	0.0%
BZN–LAS	Bozeman to Las Vegas	72	83.3%	-4.7 min	4.2%
BZN–LAX	Bozeman to Los Angeles	67	82.1%	2.7 min	0.0%
BZN–MSP	Bozeman to Minneapolis	62	96.8%	-10.0 min	0.0%
BZN–SEA	Bozeman to Seattle	61	86.9%	-11.7 min	1.6%
BZN–ORD	Bozeman to Chicago	51	88.2%	-4.6 min	2.0%
BZN–DFW	Bozeman to Dallas/Fort Worth	42	88.1%	12.6 min	0.0%
BZN–ATL	Bozeman to Atlanta	37	83.8%	0.2 min	0.0%
BZN–SFO	Bozeman to San Francisco	31	77.4%	11.7 min	0.0%
BZN–PDX	Bozeman to Portland	18	83.3%	10.5 min	0.0%
BZN–AZA	Bozeman to Phoenix	12	83.3%	8.5 min	8.3%

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 2023.

Delay causes

BTS cause category	Share of delay minutes	National, Dec 2023	Minutes
Air carrier	38.2%	37.1%	3,088
Late-arriving aircraft	43.7%	38.8%	3,530
National Aviation System	16.8%	17.6%	1,357
Extreme weather	1.4%	6.2%	111
Security	0.0%	0.3%	0

8,086 delay minutes on 96 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 BZN on time in December 2023?

87.5% of 813 scheduled domestic departures left less than 15 minutes late, and 87.0% reached their destination on time. The national figures that month were 83.1% and 83.8%.

How does that compare with a year earlier?

December 2022 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 December 2023; public domain. Domestic scheduled flights by reporting carriers, totals and averages only. The site's data runs through July 2026. Full record for BZN · methodology · corrections.