What is the cheapest airline that flies from Idaho to Montana?

Alaska Airlines and Delta are the most popular carriers operating from Idaho to Montana

When did momondo last update prices for flights from Idaho to Montana?

Prices for flights from Idaho to Montana refresh daily.

How many operators does momondo search for flights from Idaho to Montana?

The number of operators available for flights from Idaho to Montana is 2 as of November 2026.

How old do you have to be to fly from Idaho to Montana?

The minimum age for a child to fly alone is five, but airlines that offer an unaccompanied minor (UNMR) service may have their own age limitations. Flight duration, scheduling, and layovers are among the considerations that may influence age limits. We recommend that you double-check with the airline you are booking with for travel from Idaho to Montana.

What documentation or ID do you need to fly to Montana?

The required travel and health documents for your Montana trip may vary depending on your itinerary and personal circumstances. As a general rule, you should carry multiple documents, including a national ID card or driver's license and a passport valid for six months after your intended arrival at Montana. We recommend that you seek guidance from your airline or a reliable third party such as IATA.

$129 Cheap Flights from Idaho to Montana in 2026/27

Discover deals from 900+ travel sites with momondo.

Find the cheapest flights from Idaho to Montana

Round-trip

One-way

Last minute

Direct

Cheap round-trip flights

Enter your travel dates to find the best prices.

1:04 pm - 2:12 pmBOI Boise Air Term. Gowen Fld-BZN Bozeman Gallatin Field

1h 08mnonstop

2:52 pm - 4:07 pmBZN Bozeman Gallatin Field-BOI Boise Air Term. Gowen Fld

1h 15mnonstop

$197Alaska Airlines

Wed, Jan 27 - Wed, Feb 3

1:12 pm - 6:01 pmBOI Boise Air Term. Gowen Fld-BZN Bozeman Gallatin Field

4h 49m1 stop Salt Lake City

5:05 am - 9:50 amBZN Bozeman Gallatin Field-BOI Boise Air Term. Gowen Fld

4h 45m1 stop Salt Lake City

$217Delta

Wed, Jan 27 - Wed, Feb 3

1:04 pm - 2:12 pmBOI Boise Air Term. Gowen Fld-BZN Bozeman Gallatin Field

1h 08mnonstop

7:30 am - 12:25 pmBZN Bozeman Gallatin Field-BOI Boise Air Term. Gowen Fld

4h 55m1 stop Seattle/Tacoma Intl

$237Alaska Airlines

Wed, Jan 27 - Wed, Feb 3

1:04 pm - 2:12 pmBOI Boise Air Term. Gowen Fld-BZN Bozeman Gallatin Field

1h 08mnonstop

7:30 am - 12:25 pmBZN Bozeman Gallatin Field-BOI Boise Air Term. Gowen Fld

4h 55m1 stop Seattle/Tacoma Intl

$247Alaska Airlines

Wed, Jan 27 - Wed, Feb 3

6:45 pm - 12:26 amBOI Boise Air Term. Gowen Fld-BZN Bozeman Gallatin Field

5h 41m1 stop Salt Lake City

5:20 am - 9:52 amBZN Bozeman Gallatin Field-BOI Boise Air Term. Gowen Fld

4h 32m1 stop Salt Lake City

$248Delta

Thu, Dec 17 - Sat, Dec 19

1:04 pm - 2:12 pmBOI Boise Air Term. Gowen Fld-BZN Bozeman Gallatin Field

1h 08mnonstop

6:55 pm - 11:44 pmBZN Bozeman Gallatin Field-BOI Boise Air Term. Gowen Fld

4h 49m1 stop Seattle/Tacoma Intl

$252Alaska Airlines

Fri, Jan 15 - Mon, Jan 18

6:35 pm - 12:30 amBOI Boise Air Term. Gowen Fld-BZN Bozeman Gallatin Field

5h 55m1 stop Salt Lake City

5:20 am - 9:52 amBZN Bozeman Gallatin Field-BOI Boise Air Term. Gowen Fld

4h 32m1 stop Salt Lake City

$253Delta

Mon, Dec 21 - Mon, Dec 28

2:50 pm - 10:10 pmBOI Boise Air Term. Gowen Fld-BZN Bozeman Gallatin Field

7h 20m1 stop Denver Intl

11:40 am - 8:25 pmBZN Bozeman Gallatin Field-BOI Boise Air Term. Gowen Fld

8h 45m2 stops Las Vegas Harry Reid Intl Sacramento Intl

$322Southwest

Thu, Jan 28 - Sat, Jan 30

2:50 pm - 10:10 pmBOI Boise Air Term. Gowen Fld-BZN Bozeman Gallatin Field

7h 20m1 stop Denver Intl

11:30 am - 9:40 pmBZN Bozeman Gallatin Field-BOI Boise Air Term. Gowen Fld

10h 10m2 stops Las Vegas Harry Reid Intl Phoenix Sky Harbor Intl

$322Southwest

Thu, Jan 7 - Fri, Jan 8

2:50 pm - 10:10 pmBOI Boise Air Term. Gowen Fld-BZN Bozeman Gallatin Field

7h 20m1 stop Denver Intl

11:30 am - 9:40 pmBZN Bozeman Gallatin Field-BOI Boise Air Term. Gowen Fld

10h 10m2 stops Las Vegas Harry Reid Intl Phoenix Sky Harbor Intl

$322Southwest

Wed, Jan 27 - Wed, Feb 3

Cheap last minute flights

Enter your travel dates to find the best prices.

3:30 pm - 10:30 pmBOI Boise Air Term. Gowen Fld-BZN Bozeman Gallatin Field

7h 00m1 stop Denver Intl

8:05 am - 3:10 pmBZN Bozeman Gallatin Field-BOI Boise Air Term. Gowen Fld

7h 05m1 stop Denver Intl

$507Southwest

Mon, Nov 16 - Thu, Nov 19

3:45 pm - 9:35 pmBOI Boise Air Term. Gowen Fld-BZN Bozeman Gallatin Field

5h 50m1 stop Las Vegas Harry Reid Intl

8:05 am - 3:10 pmBZN Bozeman Gallatin Field-BOI Boise Air Term. Gowen Fld

7h 05m1 stop Denver Intl

$507Southwest

Tue, Nov 17 - Thu, Nov 19

6:20 am - 2:50 pmBOI Boise Air Term. Gowen Fld-BZN Bozeman Gallatin Field

8h 30m2 stops Las Vegas Harry Reid Intl Denver Intl

8:05 am - 3:10 pmBZN Bozeman Gallatin Field-BOI Boise Air Term. Gowen Fld

7h 05m1 stop Denver Intl

$512Southwest

Tue, Nov 17 - Thu, Nov 19

3:30 pm - 10:30 pmBOI Boise Air Term. Gowen Fld-BZN Bozeman Gallatin Field

7h 00m1 stop Denver Intl

6:45 am - 2:15 pmBZN Bozeman Gallatin Field-BOI Boise Air Term. Gowen Fld

7h 30m2 stops Las Vegas Harry Reid Intl San Diego

$512Southwest

Mon, Nov 16 - Thu, Nov 19

5:45 am - 2:50 pmBOI Boise Air Term. Gowen Fld-BZN Bozeman Gallatin Field

9h 05m2 stops Phoenix Sky Harbor Intl Denver Intl

6:45 am - 3:10 pmBZN Bozeman Gallatin Field-BOI Boise Air Term. Gowen Fld

8h 25m2 stops Las Vegas Harry Reid Intl Denver Intl

$517Southwest

Tue, Nov 17 - Thu, Nov 19

2:08 pm - 3:14 pmBOI Boise Air Term. Gowen Fld-BZN Bozeman Gallatin Field

1h 06mnonstop

2:54 pm - 4:08 pmBZN Bozeman Gallatin Field-BOI Boise Air Term. Gowen Fld

1h 14mnonstop

$547Alaska Airlines

Mon, Nov 16 - Thu, Nov 19

2:08 pm - 3:14 pmBOI Boise Air Term. Gowen Fld-BZN Bozeman Gallatin Field

1h 06mnonstop

3:54 pm - 10:46 pmBZN Bozeman Gallatin Field-BOI Boise Air Term. Gowen Fld

6h 52m1 stop Portland

$557Alaska Airlines

Mon, Nov 16 - Thu, Nov 19

2:08 pm - 3:14 pmBOI Boise Air Term. Gowen Fld-BZN Bozeman Gallatin Field

1h 06mnonstop

1:50 pm - 6:03 pmBZN Bozeman Gallatin Field-BOI Boise Air Term. Gowen Fld

4h 13m1 stop Seattle/Tacoma Intl

$557Alaska Airlines

Mon, Nov 16 - Thu, Nov 19

1:53 pm - 10:52 pmBOI Boise Air Term. Gowen Fld-BZN Bozeman Gallatin Field

8h 59m1 stop Seattle/Tacoma Intl

2:54 pm - 4:08 pmBZN Bozeman Gallatin Field-BOI Boise Air Term. Gowen Fld

1h 14mnonstop

$557Alaska Airlines

Tue, Nov 17 - Thu, Nov 19

1:19 pm - 5:48 pmBOI Boise Air Term. Gowen Fld-MSO Missoula Johnson-Bell Field

4h 29m1 stop Salt Lake City

6:18 pm - 9:59 pmMSO Missoula Johnson-Bell Field-BOI Boise Air Term. Gowen Fld

3h 41m1 stop Salt Lake City

$925Delta

Sat, Nov 14 - Sun, Nov 15

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Delta flights from Idaho to Montana

Our best Delta deals on Idaho to Montana flight tickets

Delta

Jan 27

BOI1:12 pmBoise Air Term. Gowen Fld

4h 49m

1 stop

BZN6:01 pmBozeman Gallatin Field

Feb 3

BZN5:05 amBozeman Gallatin Field

4h 45m

1 stop

BOI9:50 amBoise Air Term. Gowen Fld

$217

Delta

Dec 17

BOI6:45 pmBoise Air Term. Gowen Fld

5h 41m

1 stop

BZN12:26 amBozeman Gallatin Field

Dec 19

BZN5:20 amBozeman Gallatin Field

4h 32m

1 stop

BOI9:52 amBoise Air Term. Gowen Fld

$248

Delta

Dec 17

BOI6:45 pmBoise Air Term. Gowen Fld

5h 41m

1 stop

BZN12:26 amBozeman Gallatin Field

Dec 20

BZN6:39 pmBozeman Gallatin Field

5h 41m

1 stop

BOI12:20 amBoise Air Term. Gowen Fld

$253

Southwest flights from Idaho to Montana

Our best Southwest deals on Idaho to Montana flight tickets

Southwest

Jan 27

BOI2:50 pmBoise Air Term. Gowen Fld

7h 20m

1 stop

BZN10:10 pmBozeman Gallatin Field

Feb 3

BZN11:30 amBozeman Gallatin Field

10h 10m

2 stops

BOI9:40 pmBoise Air Term. Gowen Fld

$322

Southwest

Jan 28

BOI11:40 amBoise Air Term. Gowen Fld

10h 30m

2 stops

BZN10:10 pmBozeman Gallatin Field

Jan 29

BZN3:05 pmBozeman Gallatin Field

8h 05m

1 stop

BOI11:10 pmBoise Air Term. Gowen Fld

$327

Southwest

Jan 28

BOI11:40 amBoise Air Term. Gowen Fld

10h 30m

2 stops

BZN10:10 pmBozeman Gallatin Field

Jan 30

BZN11:40 amBozeman Gallatin Field

8h 45m

2 stops

BOI8:25 pmBoise Air Term. Gowen Fld

$332

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

Quickest round-trip

BoiseBozeman

BOI Boise Air Term. Gowen Fld - BZN Bozeman Gallatin Field

BOIBZN

Boise Air Term. Gowen Fld

Wed 1/27

1:04 pm-2:12 pm

Nonstop1h 08m

Bozeman Gallatin Field

Wed 2/3

2:52 pm-4:07 pm

Nonstop1h 15m

$197

BoiseBozeman

BOI Boise Air Term. Gowen Fld - BZN Bozeman Gallatin Field

BOIBZN

Boise Air Term. Gowen Fld

Wed 1/27

1:12 pm-6:01 pm

1 stop4h 49m

Bozeman Gallatin Field

Wed 2/3

5:05 am-9:50 am

1 stop4h 45m

$217

BoiseBozeman

BOI Boise Air Term. Gowen Fld - BZN Bozeman Gallatin Field

BOIBZN

Boise Air Term. Gowen Fld

Wed 1/27

1:04 pm-2:12 pm

Nonstop1h 08m

Bozeman Gallatin Field

Wed 2/3

7:30 am-12:25 pm

1 stop4h 55m

$237

BoiseBozeman

BOI Boise Air Term. Gowen Fld - BZN Bozeman Gallatin Field

BOIBZN

Boise Air Term. Gowen Fld

Wed 1/27

1:04 pm-2:12 pm

Nonstop1h 08m

Bozeman Gallatin Field

Wed 2/3

7:30 am-12:25 pm

1 stop4h 55m

$247

BoiseBozeman

BOI Boise Air Term. Gowen Fld - BZN Bozeman Gallatin Field

BOIBZN

Boise Air Term. Gowen Fld

Thu 12/17

6:45 pm-12:26 am

1 stop5h 41m

Bozeman Gallatin Field

Sat 12/19

5:20 am-9:52 am

1 stop4h 32m

$248

BoiseBozeman

BOI Boise Air Term. Gowen Fld - BZN Bozeman Gallatin Field

BOIBZN

Boise Air Term. Gowen Fld

Fri 1/15

1:04 pm-2:12 pm

Nonstop1h 08m

Bozeman Gallatin Field

Mon 1/18

6:55 pm-11:44 pm

1 stop4h 49m

$252

BoiseBozeman

BOI Boise Air Term. Gowen Fld - BZN Bozeman Gallatin Field

BOIBZN

Boise Air Term. Gowen Fld

Mon 12/21

6:35 pm-12:30 am

1 stop5h 55m

Bozeman Gallatin Field

Mon 12/28

5:20 am-9:52 am

1 stop4h 32m

$253

BoiseBozeman

BOI Boise Air Term. Gowen Fld - BZN Bozeman Gallatin Field

BOIBZN

Boise Air Term. Gowen Fld

Thu 1/28

2:50 pm-10:10 pm

1 stop7h 20m

Bozeman Gallatin Field

Sat 1/30

11:40 am-8:25 pm

2 stops8h 45m

$322

BoiseBozeman

BOI Boise Air Term. Gowen Fld - BZN Bozeman Gallatin Field

BOIBZN

Boise Air Term. Gowen Fld

Thu 1/7

2:50 pm-10:10 pm

1 stop7h 20m

Bozeman Gallatin Field

Fri 1/8

11:30 am-9:40 pm

2 stops10h 10m

$322

BoiseBozeman

BOI Boise Air Term. Gowen Fld - BZN Bozeman Gallatin Field

BOIBZN

Boise Air Term. Gowen Fld

Wed 1/27

2:50 pm-10:10 pm

1 stop7h 20m

Bozeman Gallatin Field

Wed 2/3

11:30 am-9:40 pm

2 stops10h 10m

$322

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first

How to get the cheapest flight ticket from Idaho to Montana

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

Prices

Airlines

What is the cheapest month to fly to Montana?

The cheapest month to fly to Montana from Idaho is in November. Flight prices, which tend to average around $282, are often lower during this time because this is during the off-season. The month of April is another great option to travel to Montana, with average flight prices from Idaho averaging around $320.

What is the cheapest day to depart on your flight to Montana?

Our data shows that Tuesday is the least expensive day to fly to Montana. Tickets to fly out on this day can be as low as $157. The most expensive day to fly to Montana is Friday, with ticket prices averaging around $227.

What is the cheapest Idaho to Montana flight route?

Fly from Boise Air Term. Gowen Fld to Bozeman Gallatin Field for the best Idaho - Montana flight prices

What cabin class options are available on Idaho to Montana flights?

There are 4 cabin classes available to choose from on Idaho to Montana flights. Cabin price and availability will vary by airline so perform a search above to find the right deals for you.

Can stopping save me money on Idaho to Montana flights?

You could potentially save up to 54% on your flight if you consider stops on a Idaho to Montana flight.

Cheap Idaho to Montana flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Idaho to Montana

Best Price Found	$129
Fastest flight time	1h 08m
Direct flights	Every day
Airports in Montana	32 airports

The best one-way flight to Montana from Idaho in the past 72 hours is $129. The best round-trip flight deal from Idaho to Montana found on momondo in the last 72 hours is $197.

The fastest flight from Idaho to Montana takes 1h 08m

Direct flights go from Idaho to Montana every day.

There are 32 airports in Montana. From Idaho there are direct flights to Bozeman Gallatin Field (BZN).

Search flight deals

Frequently asked questions about flying from Idaho to Montana

When did momondo last update prices for flights from Idaho to Montana?
Prices for flights from Idaho to Montana refresh daily.
How many operators does momondo search for flights from Idaho to Montana?
The number of operators available for flights from Idaho to Montana is 2 as of November 2026.
How old do you have to be to fly from Idaho to Montana?
The minimum age for a child to fly alone is five, but airlines that offer an unaccompanied minor (UNMR) service may have their own age limitations. Flight duration, scheduling, and layovers are among the considerations that may influence age limits. We recommend that you double-check with the airline you are booking with for travel from Idaho to Montana.
What documentation or ID do you need to fly to Montana?
The required travel and health documents for your Montana trip may vary depending on your itinerary and personal circumstances. As a general rule, you should carry multiple documents, including a national ID card or driver's license and a passport valid for six months after your intended arrival at Montana. We recommend that you seek guidance from your airline or a reliable third party such as IATA.
What is the most popular plane model from Idaho to Montana?
Based on momondo bookings for this flight route, the most popular plane model on flight routes from Idaho to Montana is Embraer 175 (100.00% of total bookings).

Best airlines flying from Idaho to Montana

Compare and see reviews for airlines that fly from Idaho to Montana with momondo

Airline	Rating	Free Cancellation	Price
Alaska Airlines	PriceFrom $117	Free Cancellation	Rating 7.9 13,158 reviews		Search Alaska Airlines flights
Delta	PriceFrom $163	Free Cancellation	Rating 7.8 8,714 reviews		Search Delta flights

Why use momondo?

Why should I use momondo to find a flight deal from Idaho to Montana?

momondo collates all your flight options in one place and lets you filter them to find the perfect flight from Idaho to Montana. momondo saves you time and could save you money on your trip.

Can I find flights from Idaho to Montana with flexible booking policies on momondo?

momondo does allow users to show only those flights to Montana from Idaho which offer a flexible booking policy as well as other useful filters and features.

How can momondo help me find flights from Idaho to Montana?

momondo helps you find the best flight between Idaho and Montana by providing filters to narrow your choice of flights to those matching your criteria. You can select flights based on numerous factors such as price, departure and landing times, airport and airline.

I’m not ready to book a flight from Idaho to Montana right now. Can momondo alert me if prices change?

Price alerts on flights to Montana from Idaho are quick and easy to set up on momondo. Simply perform a search and select the price alert feature. It is as simple as that.