Boise

BOI · KBOI

Boise Air Terminal/Gowen Field

43.56°, -116.22°ID, United States

Passengers a year

5.2M

#60 busiest in the U.S.

26

nonstop destinations

25

airlines

81

departures a day

80.6%

arrivals on time

0.5%

flights cancelled

80.5%

load factor

The ten busiest routes from BOI, by passengers: SEA, DEN, PHX, SLC, LAS, PDX, DFW, SMF, SFO, MSPBOIPDXSEAMSPDENDFWSLCPHXLASSFOSMF
Nonstop routes — the ten busiest. Filed traffic, June 2025 – May 2026.

Airlines

Alaska Airlines is the largest carrier at Boise, with 29% of all passengers. 25 airlines fly from here.

Share of passengers · each carrier as a slice of the whole airport

Alaska Airlines holds 29% of the airport — the 25th most concentrated of 35 medium hubs. The nearest comparison is BUF at 29%.

AirlineSharePassengersSeats YoY
AS
Alaska74% fullOperated by Horizon, SkyWest
28.7%1.5M+32.9%
WN
Southwest81% full
25.8%1.3M+3.3%
DL
Delta81% fullDelta Connection · operated by SkyWest
20.0%1M-8%
UA
United85% fullUnited Express · operated by SkyWest
14.3%745.8K-8%
AA
American88% fullAmerican Eagle · operated by SkyWest, Envoy
8.6%447.3K-0.5%
+Other airlines
2.6%136.1K—

Share, passengers and destinations count each airline’s own flights plus the regional flying sold under its brand. On-time covers the airline's own aircraft only — regional affiliates report to the government separately. Seats year on year compares the latest twelve months against the twelve before them.

Destinations

26 nonstop destinations from Boise, all domestic.

100% domestic · 0% international · by departing passengers

Top domestic destinations

  • Seattle (SEA)

    378.1K departing · 77% full

    Alaska Airlines · Delta Air Lines

  • Denver (DEN)

    355.8K departing · 85% full

    United Airlines · Southwest Airlines · Frontier Airlines

  • Phoenix (PHX)

    206.6K departing · 84% full

    Southwest Airlines · American Airlines · Alaska Airlines

  • Salt Lake City (SLC)

    169.7K departing · 82% full

    Delta Air Lines

  • Las Vegas (LAS)

    168.7K departing · 77% full

    Southwest Airlines · Alaska Airlines · Spirit Airlines

  • Portland (PDX)

    145.3K departing · 75% full

    Alaska Airlines

  • Dallas-Fort Worth (DFW)

    125.6K departing · 89% full

    American Airlines

  • Sacramento (SMF)

    116.8K departing · 74% full

    Southwest Airlines · Alaska Airlines

  • San Francisco (SFO)

    113.3K departing · 76% full

    United Airlines · Alaska Airlines

  • Minneapolis (MSP)

    107.2K departing · 81% full

    Delta Air Lines · Sun Country Airlines

All nonstop destinations

26 nonstop · 9 airlines · 26 domestic / 0 intl

Aircraft

By share of departures at Boise.

Body class · share of departures

When Boise is busiest

Departures by month over the trailing year. Bars scale to the busiest month.

Jun

Jul

Aug

Sep

Oct

Nov

Dec

Jan

Feb

Mar

Apr

May

Departures a month · peak July 2025

Annual passengers since 1990

Total passengers, arriving and departing, in every year on record.

Passengers a year

Every year
1990
1,153,462
1991
1,181,596
1992
1,289,000
1993
1,529,039
1994
1,833,478
1995
2,290,138
1996
2,781,714
1997
2,710,076
1998
2,792,609
1999
2,978,506
2000
3,124,881
2001
2,897,987
2002
2,801,577
2003
2,975,198
2004
3,191,606
2005
3,436,542
2006
3,552,621
2007
3,620,175
2008
3,352,963
2009
2,987,449
2010
2,948,354
2011
2,920,323
2012
2,669,421
2013
2,671,412
2014
2,777,297
2015
3,027,082
2016
3,343,196
2017
3,617,638
2018
3,946,144
2019
4,155,085
2020
2,004,375
2021
3,639,945
2022
4,479,901
2023
4,754,020
2024
4,964,941
2025
5,170,540
2026
2,028,836 so far

Arriving on time

Of every 100 flights landing at Boise, 81 touch down within 15 minutes of schedule, 18 arrive late, and 1 is cancelled.

See live FAA delays

Every 100 arrivals

On time 81Late 18Cancelled 1

12 min

average delay

118

flights cancelled

23.6K

arrivals measured

What holds flights up

Share of delay minutes

Most reliable here

SkyWest Airlines 84.1%

Least reliable here

American Airlines 66.8%

Among US airports

#60

On time, month by month

Darker is better · 73.4%–84.5%

The weak spot is June 2026, when 73.4% of arrivals landed on time — 7.2 points below the year. The strongest was September 2025 at 84.5%.

Frequently asked

How busy is Boise Air Terminal/Gowen Field (BOI)?

Boise Air Terminal/Gowen Field handled about 5.2M passengers over the trailing 12 months, ranking #60 among U.S. airports by passengers, with roughly 81 departures a day.

Which airline is the largest at Boise Air Terminal/Gowen Field (BOI)?

Alaska Airlines is the largest carrier at Boise (BOI), flying about 29% of its passengers. 25 airlines serve Boise in total.

How many places can you fly nonstop from Boise Air Terminal/Gowen Field (BOI)?

Boise (BOI) has 26 nonstop destinations, all domestic.

How often do flights arrive on time at Boise Air Terminal/Gowen Field (BOI)?

About 80.6% of flights arriving at Boise (BOI) touch down within 15 minutes of schedule, per US DOT figures. About 0.5% are cancelled.

What aircraft flies most from Boise Air Terminal/Gowen Field (BOI)?

The Embraer E175 flew the largest share of departures from Boise (BOI), about 53% of the total.

Departing counts passengers leaving Boise. Data: traffic June 2025 – May 2026, on-time July 2025 – June 2026. Source: US DOT Bureau of Transportation Statistics (T-100 Segment, On-Time Performance).