Boise Air Terminal in October 2024

90.1%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 October 2024, reporting carriers scheduled 1,991 domestic departures from Boise Air Terminal (BOI). 90.1% left less than 15 minutes late and 88.4% reached their destination on time; 0.1% were cancelled.

Nationally that month, 85.5% of flights departed on time and 85.8% arrived on time, so BOI departures were 4.6 points above the national departure figure.

A year earlier, in October 2023, the airport had 1,918 departures with 87.9% leaving on time: a change of +2.2 points, with flights up 4%.

Flights arriving at BOI that month were on time 86.6% of the time (1,993 scheduled arrivals).

Of the delay minutes that carriers assigned to a BTS cause category that month, air carrier 51%, late-arriving aircraft 29% and national aviation system 20%.

On time 88.4%
Arrived 15+ minutes late 11.6%
Cancelled 0.1%
Diverted 0.0%

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

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

Measure	Oct 2024	Oct 2023	BOI, 12 months to Jul 2026	All reported flights, Oct 2024
Departed on time	90.1%	87.9%	83.9%	85.5%
Arrived on time	88.4%	87.2%	82.9%	85.8%
Cancelled	0.1%	0.2%	0.5%	1.0%
Average departure delay (late minutes only)	7.7 min	10.4 min	12.2 min	9.4 min
Scheduled departures a day	66	64	65	20,517
Scheduled departures	1,991	1,918	23,701	615,497

Airlines that month

Reporting carrier	Flights	Share	On time	Avg arrival delay	Cancelled
OO SkyWest Airlines	979	49%	87.7%	-1.9 min	0.1%
WN Southwest Airlines	418	21%	89.5%	-1.7 min	0.0%
DL Delta Air Lines	251	13%	89.6%	-7.0 min	0.0%
UA United Airlines	124	6%	93.5%	-6.7 min	0.0%
AS Alaska Airlines	87	4%	85.1%	1.4 min	0.0%
AA American Airlines	64	3%	89.1%	7.3 min	0.0%
NK Spirit Airlines	43	2%	79.1%	6.8 min	0.0%
G4 Allegiant Air	25	1%	84.0%	59.4 min	0.0%

Busiest routes that month

Route	Cities	Flights	On time	Avg arrival delay	Cancelled
BOI–SEA	Boise to Seattle	304	88.5%	-2.2 min	0.0%
BOI–DEN	Boise to Denver	243	95.9%	-8.4 min	0.0%
BOI–LAX	Boise to Los Angeles	180	93.9%	-4.9 min	0.0%
BOI–PHX	Boise to Phoenix	157	85.4%	4.1 min	0.0%
BOI–SFO	Boise to San Francisco	156	79.5%	0.4 min	0.0%
BOI–SLC	Boise to Salt Lake City	146	91.8%	-10.1 min	0.0%
BOI–LAS	Boise to Las Vegas	121	85.1%	1.4 min	0.0%
BOI–SMF	Boise to Sacramento	89	91.0%	-1.7 min	0.0%
BOI–PDX	Boise to Portland	84	90.5%	-0.7 min	0.0%
BOI–SAN	Boise to San Diego	73	65.8%	13.2 min	1.4%
BOI–MSP	Boise to Minneapolis	62	91.9%	-5.7 min	0.0%
BOI–ORD	Boise to Chicago	62	85.5%	-4.3 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), October 2024.

Delay causes

BTS cause category	Share of delay minutes	National, Oct 2024	Minutes
Air carrier	50.5%	42.7%	7,483
Late-arriving aircraft	29.1%	37.4%	4,315
National Aviation System	19.5%	16.3%	2,892
Extreme weather	0.8%	3.4%	114
Security	0.0%	0.2%	0

14,804 delay minutes on 230 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 October 2024?

90.1% of 1,991 scheduled domestic departures left less than 15 minutes late, and 88.4% reached their destination on time. The national figures that month were 85.5% and 85.8%.

How does that compare with a year earlier?

In October 2023, 87.9% of 1,918 departures left on time and 0.2% were cancelled, against 90.1% and 0.1% in October 2024.

Provenance

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