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

Southwest, Delta, and Alaska Airlines 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 September 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.

2:09 pm - 3:15 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

$197Alaska Airlines

Fri, Oct 30 - Mon, Nov 2

6:45 pm - 12:19 amBOI Boise Air Term. Gowen Fld-BZN Bozeman Gallatin Field

5h 34m1 stop Salt Lake City

5:20 am - 10:42 amBZN Bozeman Gallatin Field-BOI Boise Air Term. Gowen Fld

5h 22m1 stop Salt Lake City

$217Delta

Fri, Nov 13 - Sun, Nov 15

3:55 pm - 10:50 pmBOI Boise Air Term. Gowen Fld-BZN Bozeman Gallatin Field

6h 55m1 stop Denver Intl

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

7h 05m1 stop Denver Intl

$217Southwest

Mon, Nov 9 - Wed, Nov 11

11:32 am - 5:51 pmBOI Boise Air Term. Gowen Fld-BZN Bozeman Gallatin Field

6h 19m1 stop Salt Lake City

5:30 am - 10:42 amBZN Bozeman Gallatin Field-BOI Boise Air Term. Gowen Fld

5h 12m1 stop Salt Lake City

$217Delta

Wed, Oct 28 - Sat, Oct 31

5:45 pm - 12:10 amBOI Boise Air Term. Gowen Fld-BZN Bozeman Gallatin Field

6h 25m1 stop Salt Lake City

5:45 am - 10:19 amBZN Bozeman Gallatin Field-BOI Boise Air Term. Gowen Fld

4h 34m1 stop Salt Lake City

$217Delta

Wed, Feb 24 - Sun, Feb 28

12:55 pm - 10:10 pmBOI Boise Air Term. Gowen Fld-BZN Bozeman Gallatin Field

9h 15m1 stop Denver Intl

11:25 am - 4:15 pmBZN Bozeman Gallatin Field-BOI Boise Air Term. Gowen Fld

4h 50m1 stop Denver Intl

$222Southwest

Wed, Oct 21 - Sat, Oct 24

6:15 am - 12:40 pmBOI Boise Air Term. Gowen Fld-BZN Bozeman Gallatin Field

6h 25m1 stop Las Vegas Harry Reid Intl

8:10 am - 6:10 pmBZN Bozeman Gallatin Field-BOI Boise Air Term. Gowen Fld

10h 00m2 stops Denver Intl Sacramento Intl

$222Southwest

Wed, Oct 28 - Sat, Oct 31

3:00 pm - 4:08 pmBOI Boise Air Term. Gowen Fld-BZN Bozeman Gallatin Field

1h 08mnonstop

4:48 pm - 5:55 pmBZN Bozeman Gallatin Field-BOI Boise Air Term. Gowen Fld

1h 07mnonstop

$237Alaska Airlines

Wed, Feb 24 - Sun, Feb 28

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

$237Alaska Airlines

Fri, Nov 13 - Sun, Nov 15

2:04 pm - 3:12 pmBOI Boise Air Term. Gowen Fld-BZN Bozeman Gallatin Field

1h 08mnonstop

7:09 pm - 11:46 pmBZN Bozeman Gallatin Field-BOI Boise Air Term. Gowen Fld

4h 37m1 stop Seattle/Tacoma Intl

$247Alaska Airlines

Wed, Jan 6 - Sat, Jan 9

Cheap last minute flights

Enter your travel dates to find the best prices.

12:00 pm - 10:25 pmBOI Boise Air Term. Gowen Fld-BZN Bozeman Gallatin Field

10h 25m1 stop Las Vegas Harry Reid Intl

6:30 am - 12:15 pmBZN Bozeman Gallatin Field-BOI Boise Air Term. Gowen Fld

5h 45m1 stop Las Vegas Harry Reid Intl

$422Southwest

Thu, Oct 1 - Wed, Oct 7

12:45 pm - 10:25 pmBOI Boise Air Term. Gowen Fld-BZN Bozeman Gallatin Field

9h 40m2 stops San Jose Las Vegas Harry Reid Intl

6:30 am - 12:15 pmBZN Bozeman Gallatin Field-BOI Boise Air Term. Gowen Fld

5h 45m1 stop Las Vegas Harry Reid Intl

$422Southwest

Thu, Oct 1 - Wed, Oct 7

2:25 pm - 8:05 pmBOI Boise Air Term. Gowen Fld-BZN Bozeman Gallatin Field

5h 40m1 stop Denver Intl

6:15 pm - 1:00 amBZN Bozeman Gallatin Field-BOI Boise Air Term. Gowen Fld

6h 45m1 stop Las Vegas Harry Reid Intl

$477Southwest

Wed, Sep 30 - Thu, Oct 1

12:45 pm - 10:25 pmBOI Boise Air Term. Gowen Fld-BZN Bozeman Gallatin Field

9h 40m2 stops San Jose Las Vegas Harry Reid Intl

8:05 am - 6:25 pmBZN Bozeman Gallatin Field-BOI Boise Air Term. Gowen Fld

10h 20m2 stops Denver Intl Phoenix Sky Harbor Intl

$477Southwest

Thu, Oct 1 - Wed, Oct 7

5:52 pm - 9:40 amBOI Boise Air Term. Gowen Fld-BZN Bozeman Gallatin Field

15h 48m1 stop Seattle/Tacoma Intl

2:55 pm - 4:07 pmBZN Bozeman Gallatin Field-BOI Boise Air Term. Gowen Fld

1h 12mnonstop

$497Alaska Airlines

Fri, Oct 2 - Sun, Oct 4

8:03 am - 2:46 pmBOI Boise Air Term. Gowen Fld-BZN Bozeman Gallatin Field

6h 43m1 stop Seattle/Tacoma Intl

2:55 pm - 4:07 pmBZN Bozeman Gallatin Field-BOI Boise Air Term. Gowen Fld

1h 12mnonstop

$497Alaska Airlines

Fri, Oct 2 - Sun, Oct 4

8:03 am - 2:46 pmBOI Boise Air Term. Gowen Fld-BZN Bozeman Gallatin Field

6h 43m1 stop Seattle/Tacoma Intl

2:55 pm - 4:07 pmBZN Bozeman Gallatin Field-BOI Boise Air Term. Gowen Fld

1h 12mnonstop

$497Alaska Airlines

Fri, Oct 2 - Mon, Oct 5

1:06 pm - 5:55 pmBOI Boise Air Term. Gowen Fld-BZN Bozeman Gallatin Field

4h 49m1 stop Salt Lake City

6:00 am - 9:51 amBZN Bozeman Gallatin Field-BOI Boise Air Term. Gowen Fld

3h 51m1 stop Salt Lake City

$498Delta

Fri, Oct 2 - Sun, Oct 4

1:06 pm - 5:55 pmBOI Boise Air Term. Gowen Fld-BZN Bozeman Gallatin Field

4h 49m1 stop Salt Lake City

6:00 am - 9:51 amBZN Bozeman Gallatin Field-BOI Boise Air Term. Gowen Fld

3h 51m1 stop Salt Lake City

$597Delta

Sun, Sep 27 - Sat, Oct 3

1:06 pm - 5:55 pmBOI Boise Air Term. Gowen Fld-BZN Bozeman Gallatin Field

4h 49m1 stop Salt Lake City

5:30 am - 10:42 amBZN Bozeman Gallatin Field-BOI Boise Air Term. Gowen Fld

5h 12m1 stop Salt Lake City

$683Delta

Sun, Sep 27 - Fri, Oct 9

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Delta flights from Idaho to Montana

Our best Delta deals on Idaho to Montana flight tickets

Delta

Oct 25

BOI6:49 pmBoise Air Term. Gowen Fld

5h 38m

1 stop

BZN12:27 amBozeman Gallatin Field

Nov 1

BZN5:30 amBozeman Gallatin Field

5h 12m

1 stop

BOI10:42 amBoise Air Term. Gowen Fld

$217

Delta

Oct 23

BOI6:49 pmBoise Air Term. Gowen Fld

5h 38m

1 stop

BZN12:27 amBozeman Gallatin Field

Oct 26

BZN5:30 amBozeman Gallatin Field

5h 12m

1 stop

BOI10:42 amBoise Air Term. Gowen Fld

$247

Delta

Nov 13

BOI6:45 pmBoise Air Term. Gowen Fld

5h 34m

1 stop

BZN12:19 amBozeman Gallatin Field

Nov 15

BZN5:20 amBozeman Gallatin Field

5h 22m

1 stop

BOI10:42 amBoise Air Term. Gowen Fld

$252

Southwest flights from Idaho to Montana

Our best Southwest deals on Idaho to Montana flight tickets

Southwest

Oct 21

BOI12:55 pmBoise Air Term. Gowen Fld

9h 15m

1 stop

BZN10:10 pmBozeman Gallatin Field

Oct 24

BZN11:25 amBozeman Gallatin Field

4h 50m

1 stop

BOI4:15 pmBoise Air Term. Gowen Fld

$222

Southwest

Oct 24

BOI5:30 amBoise Air Term. Gowen Fld

8h 20m

2 stops

BZN1:50 pmBozeman Gallatin Field

Oct 26

BZN6:15 pmBozeman Gallatin Field

7h 30m

2 stops

BOI1:45 amBoise Air Term. Gowen Fld

$227

Southwest

Nov 9

BOI3:55 pmBoise Air Term. Gowen Fld

6h 55m

1 stop

BZN10:50 pmBozeman Gallatin Field

Nov 11

BZN6:45 amBozeman Gallatin Field

8h 25m

2 stops

BOI3:10 pmBoise Air Term. Gowen Fld

$262

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

BoiseBozeman

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

BOIBZN

Boise Air Term. Gowen Fld

Fri 10/30

2:09 pm-3:15 pm

Nonstop1h 06m

Bozeman Gallatin Field

Mon 11/2

2:54 pm-4:08 pm

Nonstop1h 14m

$197

BoiseBozeman

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

BOIBZN

Boise Air Term. Gowen Fld

Fri 11/13

6:45 pm-12:19 am

1 stop5h 34m

Bozeman Gallatin Field

Sun 11/15

5:20 am-10:42 am

1 stop5h 22m

$217

BoiseBozeman

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

BOIBZN

Boise Air Term. Gowen Fld

Mon 11/9

3:55 pm-10:50 pm

1 stop6h 55m

Bozeman Gallatin Field

Wed 11/11

8:05 am-3:10 pm

1 stop7h 05m

$217

BoiseBozeman

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

BOIBZN

Boise Air Term. Gowen Fld

Wed 10/28

11:32 am-5:51 pm

1 stop6h 19m

Bozeman Gallatin Field

Sat 10/31

5:30 am-10:42 am

1 stop5h 12m

$217

BoiseBozeman

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

BOIBZN

Boise Air Term. Gowen Fld

Wed 2/24

5:45 pm-12:10 am

1 stop6h 25m

Bozeman Gallatin Field

Sun 2/28

5:45 am-10:19 am

1 stop4h 34m

$217

BoiseBozeman

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

BOIBZN

Boise Air Term. Gowen Fld

Wed 10/21

12:55 pm-10:10 pm

1 stop9h 15m

Bozeman Gallatin Field

Sat 10/24

11:25 am-4:15 pm

1 stop4h 50m

$222

BoiseBozeman

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

BOIBZN

Boise Air Term. Gowen Fld

Wed 10/28

6:15 am-12:40 pm

1 stop6h 25m

Bozeman Gallatin Field

Sat 10/31

8:10 am-6:10 pm

2 stops10h 00m

$222

Quickest round-trip

BoiseBozeman

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

BOIBZN

Boise Air Term. Gowen Fld

Wed 2/24

3:00 pm-4:08 pm

Nonstop1h 08m

Bozeman Gallatin Field

Sun 2/28

4:48 pm-5:55 pm

Nonstop1h 07m

$237

BoiseBozeman

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

BOIBZN

Boise Air Term. Gowen Fld

Fri 11/13

2:08 pm-3:14 pm

Nonstop1h 06m

Bozeman Gallatin Field

Sun 11/15

2:54 pm-4:08 pm

Nonstop1h 14m

$237

BoiseBozeman

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

BOIBZN

Boise Air Term. Gowen Fld

Wed 1/6

2:04 pm-3:12 pm

Nonstop1h 08m

Bozeman Gallatin Field

Sat 1/9

7:09 pm-11:46 pm

1 stop4h 37m

$247

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 January. Flight prices, which tend to average around $146, are often lower during this time because this is during the off-season. The month of November is another great option to travel to Montana, with average flight prices from Idaho averaging around $263.

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

Our data shows that Friday is the least expensive day to fly to Montana. Tickets to fly out on this day can be as low as $137. The most expensive day to fly to Montana is Sunday, with ticket prices averaging around $202.

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 3 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	3h 29m
Direct flights	Mon, Tue, Wed, Thu, Fri and Sat
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 3h 29m

Direct flights go from Idaho to Montana on Monday, Tuesday, Wednesday, Thursday, Friday and Saturday. There are no airlines offering direct flights.

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 September 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 $99	Free Cancellation	Rating 7.9 12,976 reviews		Search Alaska Airlines flights
Delta	PriceFrom $163	Free Cancellation	Rating 7.8 8,608 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.