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

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

How many flights depart from Idaho to Montana on average per week?

4 flights are operational weekly from Idaho to Montana as of December 2025. The most popular departure day for this route is Tue, with 50% of flights per week taking off on this day.

What airlines fly to Montana?

Alaska Airlines, Delta and United Airlines are the top three most popular airlines that fly to Montana from Idaho according to our data. Alaska Airlines is the first choice among our users, with 53% of people opting to fly with this airline when traveling to Montana. Keep in mind that there are 3 different airlines that fly to Montana on a routine basis, so you have a few additional options to choose from.

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 3 as of December 2025.

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.

$73 Cheap Flights from Idaho to Montana in 2025/26

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Find the cheapest flights from Idaho to Montana

Round-trip

One-way

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Cheap round-trip flights

Enter your travel dates to find the best prices.

2:15 pm - 3:23 pm

BOI

BZN

1h 08mnonstop

7:20 am - 3:10 pm

BZN

BOI

7h 50m1 stop

$162Alaska Airlines

Fri, Jan 23 - Sat, Jan 31

2:15 pm - 3:23 pm

BOI

BZN

1h 08mnonstop

1:46 pm - 3:03 pm

BZN

BOI

1h 17mnonstop

$182Alaska Airlines

Fri, Jan 16 - Sun, Jan 18

2:15 pm - 3:23 pm

BOI

BZN

1h 08mnonstop

7:20 am - 12:51 pm

BZN

BOI

5h 31m1 stop

$198Alaska Airlines

Fri, Jan 16 - Sun, Jan 18

3:40 pm - 10:27 pm

GEG

BZN

5h 47m1 stop

7:23 am - 10:45 am

BZN

GEG

4h 22m1 stop

$205Delta

Tue, Jan 13 - Tue, Jan 20

10:05 am - 5:19 pm

GEG

GTF

6h 14m1 stop

5:59 pm - 11:04 pm

GTF

GEG

6h 05m1 stop

$214Alaska Airlines

Wed, Jan 14 - Wed, Jan 21

6:05 am - 5:30 pm

GEG

GTF

10h 25m2 stops

1:12 pm - 6:45 pm

GTF

GEG

6h 33m2 stops

$215Delta

Wed, Jan 14 - Wed, Jan 21

5:45 am - 10:42 am

GEG

BZN

3h 57m1 stop

7:20 am - 12:44 pm

BZN

GEG

6h 24m1 stop

$216Alaska Airlines

Sat, Jan 24 - Wed, Jan 28

12:38 pm - 7:56 am

BOI

BIL

19h 18m2 stops

10:05 pm - 3:04 pm

BIL

BOI

16h 59m1 stop

$437Multiple Airlines

Thu, Jan 1 - Sun, Jan 4

6:15 am - 1:24 pm

BOI

BIL

7h 09m1 stop

5:50 pm - 9:41 pm

BIL

BOI

27h 51m1 stop

$680United Airlines

Thu, Jan 1 - Sun, Jan 4

6:35 am - 9:24 pm

BOI

BIL

14h 49m2 stops

2:40 pm - 10:01 am

BIL

BOI

19h 21m1 stop

$805United Airlines

Wed, Dec 31 - Sun, Jan 4

Alaska Airlines flights from Idaho to Montana

Our best Alaska Airlines deals on Idaho to Montana flight tickets

Alaska Airlines

Jan 23

BOI2:15 pmBoise Air Term. Gowen Fld

1h 08m

BZN3:23 pmBozeman Gallatin Field

Jan 31

BZN7:20 amBozeman Gallatin Field

7h 50m

1 stop

BOI3:10 pmBoise Air Term. Gowen Fld

$162

Find similar

Alaska Airlines

Jan 16

BOI2:15 pmBoise Air Term. Gowen Fld

1h 08m

BZN3:23 pmBozeman Gallatin Field

Jan 18

BZN1:46 pmBozeman Gallatin Field

1h 17m

BOI3:03 pmBoise Air Term. Gowen Fld

$182

Find similar

Alaska Airlines

Jan 16

BOI2:15 pmBoise Air Term. Gowen Fld

1h 08m

BZN3:23 pmBozeman Gallatin Field

Jan 18

BZN7:20 amBozeman Gallatin Field

5h 31m

1 stop

BOI12:51 pmBoise Air Term. Gowen Fld

$198

Find similar

Delta flights from Idaho to Montana

Our best Delta deals on Idaho to Montana flight tickets

Delta

Jan 13

GEG3:40 pmSpokane

5h 47m

1 stop

BZN10:27 pmBozeman Gallatin Field

Jan 20

BZN7:23 amBozeman Gallatin Field

4h 22m

1 stop

GEG10:45 amSpokane

$205

Find similar

Delta

Jan 14

GEG6:05 amSpokane

10h 25m

2 stops

GTF5:30 pmGreat Falls

Jan 21

GTF1:12 pmGreat Falls

6h 33m

2 stops

GEG6:45 pmSpokane

$215

Find similar

Delta

Feb 25

GEG7:10 amSpokane

9h 18m

2 stops

GTF5:28 pmGreat Falls

Mar 2

GTF1:10 pmGreat Falls

8h 46m

2 stops

GEG8:56 pmSpokane

$225

Find similar

Fly from

Fly to

Route

Depart

Return

Price

BoiseBozeman

BOI - BZN

BOIBZN

Boise Air Term. Gowen Fld

Fri 1/23

2:15 pm-3:23 pm

Nonstop1h 08m

Bozeman Gallatin Field

Sat 1/31

7:20 am-3:10 pm

1 stop7h 50m

$162

BoiseBozeman

BOI - BZN

BOIBZN

Boise Air Term. Gowen Fld

Fri 1/16

2:15 pm-3:23 pm

Nonstop1h 08m

Bozeman Gallatin Field

Sun 1/18

1:46 pm-3:03 pm

Nonstop1h 17m

$182

BoiseBozeman

BOI - BZN

BOIBZN

Boise Air Term. Gowen Fld

Fri 1/16

2:15 pm-3:23 pm

Nonstop1h 08m

Bozeman Gallatin Field

Sun 1/18

7:20 am-12:51 pm

1 stop5h 31m

$198

SpokaneBozeman

GEG - BZN

GEGBZN

Spokane

Tue 1/13

3:40 pm-10:27 pm

1 stop5h 47m

Bozeman Gallatin Field

Tue 1/20

7:23 am-10:45 am

1 stop4h 22m

$205

SpokaneGreat Falls

GEG - GTF

GEGGTF

Spokane

Wed 1/14

10:05 am-5:19 pm

1 stop6h 14m

Great Falls

Wed 1/21

5:59 pm-11:04 pm

1 stop6h 05m

$214

SpokaneGreat Falls

GEG - GTF

GEGGTF

Spokane

Wed 1/14

6:05 am-5:30 pm

2 stops10h 25m

Great Falls

Wed 1/21

1:12 pm-6:45 pm

2 stops6h 33m

$215

SpokaneBozeman

GEG - BZN

GEGBZN

Spokane

Sat 1/24

5:45 am-10:42 am

1 stop3h 57m

Bozeman Gallatin Field

Wed 1/28

7:20 am-12:44 pm

1 stop6h 24m

$216

BoiseBillings

BOI - BIL

BOIBIL

Boise Air Term. Gowen Fld

Thu 1/1

12:38 pm-7:56 am

2 stops19h 18m

Billings Logan Intl

Sun 1/4

10:05 pm-3:04 pm

1 stop16h 59m

$437

BoiseBillings

BOI - BIL

BOIBIL

Boise Air Term. Gowen Fld

Thu 1/1

6:15 am-1:24 pm

1 stop7h 09m

Billings Logan Intl

Sun 1/4

5:50 pm-9:41 pm

1 stop27h 51m

$680

BoiseBillings

BOI - BIL

BOIBIL

Boise Air Term. Gowen Fld

Wed 12/31

6:35 am-9:24 pm

2 stops14h 49m

Billings Logan Intl

Sun 1/4

2:40 pm-10:01 am

1 stop19h 21m

$805

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

Other information

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 $137, are often lower during this time because this is during the off-season. The month of January is another great option to travel to Montana, with average flight prices from Idaho averaging around $146.

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

Our data shows that Saturday is the least expensive day to fly to Montana. Tickets to fly out on this day can be as low as $117. The most expensive day to fly to Montana is Sunday, with ticket prices averaging around $413.

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

The cheapest time of day to fly to Montana is at noon when flights can be purchased for as low as $157. In the morning is when there is more demand to fly to Montana, so prices are often more expensive at around $437 per ticket.

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 2 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 23% 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	$228
Fastest flight time	1h 08m
Direct flights	Tue, Wed, Thu, Sat and Sun
Airports in Montana	32 airports

The best one-way flight to Montana from Idaho in the past 72 hours is $228. The best round-trip flight deal from Idaho to Montana found on momondo in the last 72 hours is $137.

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

Direct flights go from Idaho to Montana on Tuesday, Wednesday, Thursday, Saturday and Sunday. The only airline offering direct flights is Alaska Airlines.

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

Search flight deals

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 3 as of December 2025.
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 $101	Free Cancellation	Rating 8.0 11,472 reviews	Search Alaska Airlines flights
Delta	PriceFrom $103	Free Cancellation	Rating 7.9 8,008 reviews	Search Delta flights
United Airlines	PriceFrom $290	Free Cancellation	Rating 7.4 9,092 reviews	Search United Airlines 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.