Bozeman Yellowstone International in April 2024

87.9%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 April 2024, reporting carriers scheduled 643 domestic departures from Bozeman Yellowstone International (BZN). 87.9% left less than 15 minutes late and 83.5% reached their destination on time; 0.5% were cancelled.

Nationally that month, 80.5% of flights departed on time and 80.2% arrived on time, so BZN departures were 7.4 points above the national departure figure.

Flights arriving at BZN that month were on time 85.0% of the time (642 scheduled arrivals).

Of the delay minutes that carriers assigned to a BTS cause category that month, late-arriving aircraft 43%, national aviation system 38% and air carrier 19%.

On time 83.5%
Arrived 15+ minutes late 15.7%
Cancelled 0.5%
Diverted 0.3%

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

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

Measure	Apr 2024	Year earlier	BZN, 12 months to Jul 2026	All reported flights, Apr 2024
Departed on time	87.9%	—	79.6%	80.5%
Arrived on time	83.5%	—	79.5%	80.2%
Cancelled	0.5%	—	0.8%	0.7%
Average departure delay (late minutes only)	7.6 min	—	17.2 min	14.2 min
Scheduled departures a day	21	—	32	19,406
Scheduled departures	643	—	11,804	582,185

Airlines that month

Reporting carrier	Flights	Share	On time	Avg arrival delay	Cancelled
OO SkyWest Airlines	153	24%	80.4%	4.0 min	0.7%
WN Southwest Airlines	150	23%	85.3%	-4.4 min	0.0%
DL Delta Air Lines	140	22%	92.1%	-5.8 min	0.0%
UA United Airlines	107	17%	77.6%	3.1 min	0.9%
AA American Airlines	36	6%	72.2%	11.4 min	2.8%
AS Alaska Airlines	30	5%	76.7%	5.3 min	0.0%
G4 Allegiant Air	27	4%	92.6%	-17.6 min	0.0%

Busiest routes that month

Route	Cities	Flights	On time	Avg arrival delay	Cancelled
BZN–DEN	Bozeman to Denver	184	82.1%	-0.3 min	0.0%
BZN–SLC	Bozeman to Salt Lake City	90	95.6%	-11.2 min	0.0%
BZN–LAS	Bozeman to Las Vegas	64	82.8%	-2.2 min	0.0%
BZN–MSP	Bozeman to Minneapolis	60	91.7%	-3.6 min	0.0%
BZN–ORD	Bozeman to Chicago	42	81.0%	-2.0 min	2.4%
BZN–DFW	Bozeman to Dallas/Fort Worth	33	69.7%	12.8 min	3.0%
BZN–LAX	Bozeman to Los Angeles	33	87.9%	-5.5 min	0.0%
BZN–ATL	Bozeman to Atlanta	31	87.1%	1.7 min	0.0%
BZN–SEA	Bozeman to Seattle	30	76.7%	5.3 min	0.0%
BZN–SFO	Bozeman to San Francisco	30	53.3%	26.1 min	3.3%
BZN–PDX	Bozeman to Portland	17	76.5%	18.5 min	0.0%
BZN–BNA	Bozeman to Nashville	10	100.0%	-22.4 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), April 2024.

Delay causes

BTS cause category	Share of delay minutes	National, Apr 2024	Minutes
Air carrier	19.0%	33.6%	930
Late-arriving aircraft	43.0%	41.0%	2,107
National Aviation System	38.0%	20.0%	1,865
Extreme weather	0.0%	5.1%	0
Security	0.0%	0.2%	0

4,902 delay minutes on 101 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 April 2024?

87.9% of 643 scheduled domestic departures left less than 15 minutes late, and 83.5% reached their destination on time. The national figures that month were 80.5% and 80.2%.

How does that compare with a year earlier?

April 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 April 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.