Boise Air Terminal in November 2023

89.6%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 November 2023, reporting carriers scheduled 1,776 domestic departures from Boise Air Terminal (BOI). 89.6% left less than 15 minutes late and 89.0% reached their destination on time; 0.2% were cancelled.

Nationally that month, 86.0% of flights departed on time and 86.2% arrived on time, so BOI departures were 3.6 points above the national departure figure.

Flights arriving at BOI that month were on time 87.3% of the time (1,773 scheduled arrivals).

Of the delay minutes that carriers assigned to a BTS cause category that month, late-arriving aircraft 41%, air carrier 32% and national aviation system 16%.

On time 89.0%
Arrived 15+ minutes late 10.7%
Cancelled 0.2%
Diverted 0.1%

Every scheduled departure from BOI in November 2023, judged by arrival at the destination.

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

Measure	Nov 2023	Year earlier	BOI, 12 months to Jul 2026	All reported flights, Nov 2023
Departed on time	89.6%	—	83.9%	86.0%
Arrived on time	89.0%	—	82.9%	86.2%
Cancelled	0.2%	—	0.5%	0.1%
Average departure delay (late minutes only)	7.9 min	—	12.2 min	9.4 min
Scheduled departures a day	59	—	65	18,793
Scheduled departures	1,776	—	23,701	563,777

Airlines that month

Reporting carrier	Flights	Share	On time	Avg arrival delay	Cancelled
OO SkyWest Airlines	741	42%	86.9%	-1.6 min	0.1%
WN Southwest Airlines	372	21%	90.6%	-3.4 min	0.0%
DL Delta Air Lines	238	13%	94.5%	-9.1 min	0.0%
UA United Airlines	119	7%	95.8%	-12.6 min	0.0%
AA American Airlines	99	6%	86.9%	9.1 min	0.0%
AS Alaska Airlines	75	4%	89.3%	-5.1 min	0.0%
NK Spirit Airlines	53	3%	81.1%	0.2 min	3.8%
MQ Envoy Air	49	3%	93.9%	-3.4 min	0.0%
G4 Allegiant Air	30	2%	63.3%	13.6 min	3.3%

Busiest routes that month

Route	Cities	Flights	On time	Avg arrival delay	Cancelled
BOI–SEA	Boise to Seattle	356	87.9%	-4.8 min	0.0%
BOI–DEN	Boise to Denver	206	90.3%	-3.1 min	0.0%
BOI–LAS	Boise to Las Vegas	155	84.5%	-1.4 min	1.3%
BOI–SLC	Boise to Salt Lake City	138	94.2%	-5.3 min	0.0%
BOI–SFO	Boise to San Francisco	131	91.6%	-6.9 min	0.0%
BOI–PHX	Boise to Phoenix	128	89.1%	3.1 min	0.0%
BOI–LAX	Boise to Los Angeles	91	89.0%	2.3 min	0.0%
BOI–DFW	Boise to Dallas/Fort Worth	90	86.7%	4.5 min	0.0%
BOI–OAK	Boise to Oakland	60	90.0%	-2.9 min	0.0%
BOI–SAN	Boise to San Diego	60	86.7%	0.2 min	0.0%
BOI–MSP	Boise to Minneapolis	59	93.2%	-9.6 min	0.0%
BOI–SMF	Boise to Sacramento	58	93.1%	-3.6 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), November 2023.

Delay causes

BTS cause category	Share of delay minutes	National, Nov 2023	Minutes
Air carrier	32.3%	42.5%	4,082
Late-arriving aircraft	40.5%	37.3%	5,115
National Aviation System	16.0%	16.2%	2,020
Extreme weather	11.3%	3.7%	1,426
Security	0.0%	0.3%	0

12,643 delay minutes on 190 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 November 2023?

89.6% of 1,776 scheduled domestic departures left less than 15 minutes late, and 89.0% reached their destination on time. The national figures that month were 86.0% and 86.2%.

How does that compare with a year earlier?

November 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 November 2023; 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.