Bozeman Yellowstone International in May 2024

82.5%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 May 2024, reporting carriers scheduled 719 domestic departures from Bozeman Yellowstone International (BZN). 82.5% left less than 15 minutes late and 81.5% reached their destination on time; 0.3% were cancelled.

Nationally that month, 73.4% of flights departed on time and 72.3% arrived on time, so BZN departures were 9.1 points above the national departure figure.

Flights arriving at BZN that month were on time 79.6% of the time (721 scheduled arrivals).

Of the delay minutes that carriers assigned to a BTS cause category that month, air carrier 42%, late-arriving aircraft 33% and national aviation system 25%.

On time 81.5%
Arrived 15+ minutes late 17.8%
Cancelled 0.3%
Diverted 0.4%

Every scheduled departure from BZN in May 2024, judged by arrival at the destination.

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

Measure	May 2024	Year earlier	BZN, 12 months to Jul 2026	All reported flights, May 2024
Departed on time	82.5%	—	79.6%	73.4%
Arrived on time	81.5%	—	79.5%	72.3%
Cancelled	0.3%	—	0.8%	1.4%
Average departure delay (late minutes only)	17.5 min	—	17.2 min	20.8 min
Scheduled departures a day	24	—	32	20,325
Scheduled departures	719	—	11,804	609,743

Airlines that month

Reporting carrier	Flights	Share	On time	Avg arrival delay	Cancelled
UA United Airlines	158	22%	81.6%	4.1 min	1.3%
DL Delta Air Lines	154	21%	88.3%	3.1 min	0.0%
WN Southwest Airlines	151	21%	76.8%	3.2 min	0.0%
OO SkyWest Airlines	150	21%	86.0%	8.4 min	0.0%
AS Alaska Airlines	47	7%	66.0%	13.6 min	0.0%
AA American Airlines	31	4%	61.3%	106.4 min	0.0%
G4 Allegiant Air	28	4%	92.9%	-10.9 min	0.0%

Busiest routes that month

Route	Cities	Flights	On time	Avg arrival delay	Cancelled
BZN–DEN	Bozeman to Denver	204	80.9%	6.3 min	1.0%
BZN–SLC	Bozeman to Salt Lake City	93	88.2%	-1.4 min	0.0%
BZN–LAS	Bozeman to Las Vegas	67	79.1%	4.2 min	0.0%
BZN–MSP	Bozeman to Minneapolis	62	90.3%	7.7 min	0.0%
BZN–SEA	Bozeman to Seattle	62	71.0%	10.3 min	0.0%
BZN–ORD	Bozeman to Chicago	59	78.0%	4.6 min	0.0%
BZN–ATL	Bozeman to Atlanta	31	80.6%	4.5 min	0.0%
BZN–DFW	Bozeman to Dallas/Fort Worth	31	61.3%	106.4 min	0.0%
BZN–LAX	Bozeman to Los Angeles	31	93.5%	-9.2 min	0.0%
BZN–SFO	Bozeman to San Francisco	31	80.6%	8.9 min	0.0%
BZN–PDX	Bozeman to Portland	20	90.0%	5.0 min	0.0%
BZN–AZA	Bozeman to Phoenix	9	88.9%	-9.6 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), May 2024.

Delay causes

BTS cause category	Share of delay minutes	National, May 2024	Minutes
Air carrier	41.6%	29.8%	5,072
Late-arriving aircraft	33.0%	43.0%	4,022
National Aviation System	24.5%	20.1%	2,978
Extreme weather	0.9%	7.0%	106
Security	0.0%	0.1%	0

12,178 delay minutes on 128 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 May 2024?

82.5% of 719 scheduled domestic departures left less than 15 minutes late, and 81.5% reached their destination on time. The national figures that month were 73.4% and 72.3%.

How does that compare with a year earlier?

May 2023 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 May 2024; 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.