Boise Air Terminal in June 2024

82.1%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 June 2024, reporting carriers scheduled 2,063 domestic departures from Boise Air Terminal (BOI). 82.1% left less than 15 minutes late and 81.9% reached their destination on time; 0.5% were cancelled.

Nationally that month, 73.7% of flights departed on time and 73.9% arrived on time, so BOI departures were 8.4 points above the national departure figure.

Flights arriving at BOI that month were on time 74.6% of the time (2,062 scheduled arrivals).

Of the delay minutes that carriers assigned to a BTS cause category that month, air carrier 42%, late-arriving aircraft 37% and national aviation system 18%.

On time 81.9%
Arrived 15+ minutes late 17.5%
Cancelled 0.5%
Diverted 0.2%

Every scheduled departure from BOI in June 2024, judged by arrival at the destination.

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

Measure	Jun 2024	Year earlier	BOI, 12 months to Jul 2026	All reported flights, Jun 2024
Departed on time	82.1%	—	83.9%	73.7%
Arrived on time	81.9%	—	82.9%	73.9%
Cancelled	0.5%	—	0.5%	1.3%
Average departure delay (late minutes only)	12.8 min	—	12.2 min	19.7 min
Scheduled departures a day	69	—	65	20,371
Scheduled departures	2,063	—	23,701	611,132

Airlines that month

Reporting carrier	Flights	Share	On time	Avg arrival delay	Cancelled
OO SkyWest Airlines	954	46%	83.8%	4.4 min	0.1%
WN Southwest Airlines	417	20%	82.0%	2.7 min	0.2%
DL Delta Air Lines	268	13%	83.2%	14.9 min	0.0%
UA United Airlines	181	9%	77.9%	3.6 min	1.1%
AA American Airlines	111	5%	70.3%	9.2 min	1.8%
NK Spirit Airlines	60	3%	80.0%	-2.7 min	5.0%
G4 Allegiant Air	33	2%	78.8%	38.8 min	3.0%
AS Alaska Airlines	30	1%	83.3%	1.0 min	0.0%
MQ Envoy Air	9	0%	77.8%	1.4 min	0.0%

Busiest routes that month

Route	Cities	Flights	On time	Avg arrival delay	Cancelled
BOI–SEA	Boise to Seattle	323	78.6%	8.0 min	0.0%
BOI–DEN	Boise to Denver	243	84.0%	-1.4 min	0.4%
BOI–LAX	Boise to Los Angeles	155	96.1%	-3.3 min	0.0%
BOI–LAS	Boise to Las Vegas	153	82.4%	7.2 min	2.0%
BOI–SLC	Boise to Salt Lake City	144	86.1%	17.4 min	0.0%
BOI–PHX	Boise to Phoenix	129	84.5%	0.5 min	0.8%
BOI–PDX	Boise to Portland	101	97.0%	-3.3 min	1.0%
BOI–GEG	Boise to Spokane	92	71.7%	13.8 min	0.0%
BOI–SFO	Boise to San Francisco	90	72.2%	19.0 min	0.0%
BOI–SMF	Boise to Sacramento	90	74.4%	11.1 min	0.0%
BOI–DFW	Boise to Dallas/Fort Worth	86	64.0%	14.4 min	2.3%
BOI–MSP	Boise to Minneapolis	84	78.6%	18.8 min	0.0%

By scheduled departure hour

On-time share:under 62%6270768288% and over

Share of departures that left less than 15 minutes late, by scheduled hour (local time), June 2024.

Delay causes

BTS cause category	Share of delay minutes	National, Jun 2024	Minutes
Air carrier	42.4%	34.4%	10,454
Late-arriving aircraft	36.6%	41.5%	9,009
National Aviation System	18.4%	17.8%	4,533
Extreme weather	2.4%	6.0%	590
Security	0.2%	0.2%	45

24,631 delay minutes on 360 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 BOI on time in June 2024?

82.1% of 2,063 scheduled domestic departures left less than 15 minutes late, and 81.9% reached their destination on time. The national figures that month were 73.7% and 73.9%.

How does that compare with a year earlier?

June 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 June 2024; public domain. Domestic scheduled flights by reporting carriers, totals and averages only. The site's data runs through July 2026. Full record for BOI · methodology · corrections.