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

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

How long is the flight from Montana to Idaho?

Flight times from Montana to Idaho vary, but if you’re flying out of Bozeman and flying into Boise (one of the most popular routes), then the duration is 1h 14m on average. Another popular route from Montana to Idaho is flying from Billings to Boise, which will take roughly 3h 25m. Keep in mind that layovers or delays could extend your travel time.

What airlines fly to Idaho?

Alaska Airlines, Delta and Southwest are the top three most popular airlines that fly to Idaho from Montana according to our data. Alaska Airlines is the first choice among our users, with 50% of people opting to fly with this airline when traveling to Idaho. Keep in mind that there are 4 different airlines that fly to Idaho on a routine basis, so you have a few additional options to choose from.

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

Prices for flights from Montana to Idaho are refreshed on a daily basis.

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

The number of operators available for flights from Montana to Idaho is 4 as of May 2026.

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

Although the minimum age for a child to fly alone is five, airlines that offer an unaccompanied minor (UMNR) service may have their own age limits, which could be impacted by factors such as flight length, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Montana to Idaho.

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

The necessary travel and health documents for your Idaho trip may vary depending on your travel plans and individual circumstances. Generally, you should have various documents, such as a national ID card or driver's license and a passport that is valid for six months beyond your scheduled arrival date. We recommend seeking advice from your airline or a trusted third party, such as IATA.

$159 Cheap Flights from Montana to Idaho in 2026

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Find the cheapest flights from Montana to Idaho

Round-trip

One-way

Last minute

Direct

Cheap round-trip flights

Enter your travel dates to find the best prices.

2:54 pm - 4:08 pm

BZN

BOI

1h 14mnonstop

2:08 pm - 3:14 pm

BOI

BZN

1h 06mnonstop

$217Alaska Airlines

Mon, Nov 2 - Sun, Nov 8

5:15 am - 9:29 am

BZN

BOI

4h 14m

1 stop

5:15 pm - 10:03 pm

BOI

BZN

4h 48m

1 stop

$237Delta

Thu, Jul 9 - Sat, Jul 11

5:15 am - 9:29 am

BZN

BOI

4h 14m

1 stop

6:44 pm - 12:04 am

BOI

BZN

5h 20m

1 stop

$258Delta

Thu, Jul 30 - Mon, Aug 3

7:25 pm - 11:58 pm

BZN

BOI

4h 33m

1 stop

2:08 pm - 3:14 pm

BOI

BZN

1h 06mnonstop

$277Alaska Airlines

Mon, Oct 26 - Mon, Nov 2

5:45 am - 10:13 am

BZN

BOI

4h 28m

1 stop

5:45 pm - 11:59 pm

BOI

BZN

6h 14m

1 stop

$278Delta

Fri, Oct 2 - Sun, Oct 4

7:15 pm - 1:10 am

BZN

BOI

5h 55m

1 stop

3:25 pm - 1:10 am

BOI

BZN

9h 45m

2 stops

$282Southwest

Thu, Jul 30 - Mon, Aug 3

5:45 am - 10:13 am

BZN

BOI

4h 28m

1 stop

5:45 pm - 11:59 pm

BOI

BZN

6h 14m

1 stop

$297Delta

Sat, Sep 26 - Sat, Sep 26

7:00 pm - 12:25 am

BZN

BOI

5h 25m

1 stop

5:10 pm - 9:55 pm

BOI

BZN

4h 45m

1 stop

$306Southwest

Wed, Jul 15 - Sat, Jul 18

7:15 am - 8:58 pm

MSO

JAC

13h 43m

2 stops

8:00 am - 10:36 pm

JAC

MSO

14h 36m

1 stop

$862United Airlines

Sat, May 23 - Sun, May 24

7:15 am - 8:58 pm

MSO

JAC

13h 43m

2 stops

7:05 am - 10:36 pm

JAC

MSO

15h 31m

2 stops

$867United Airlines

Sat, May 23 - Sun, May 24

United Airlines flights from Montana to Idaho

Our best United Airlines deals on Montana to Idaho flight tickets

United Airlines

Sep 17

BIL5:00 amBillings Logan Intl

4h 35m

1 stop

BOI9:35 amBoise Air Term. Gowen Fld

Sep 24

BOI5:00 amBoise Air Term. Gowen Fld

4h 41m

1 stop

BIL9:41 amBillings Logan Intl

$465

United Airlines

May 19

BIL10:35 amBillings Logan Intl

5h 43m

1 stop

GEG3:18 pmSpokane

May 26

GEG5:00 amSpokane

7h 22m

1 stop

BIL1:22 pmBillings Logan Intl

$655

United Airlines

May 21

HLN6:15 amHelena

7h 19m

1 stop

BOI1:34 pmBoise Air Term. Gowen Fld

May 24

BOI2:40 pmBoise Air Term. Gowen Fld

6h 40m

1 stop

HLN9:20 pmHelena

$755

Alaska Airlines flights from Montana to Idaho

Our best Alaska Airlines deals on Montana to Idaho flight tickets

Alaska Airlines

Nov 2

BZN2:54 pmBozeman Gallatin Field

1h 14m

BOI4:08 pmBoise Air Term. Gowen Fld

Nov 8

BOI2:08 pmBoise Air Term. Gowen Fld

1h 06m

BZN3:14 pmBozeman Gallatin Field

$217

Alaska Airlines

Oct 26

BZN7:25 pmBozeman Gallatin Field

4h 33m

1 stop

BOI11:58 pmBoise Air Term. Gowen Fld

Nov 2

BOI2:08 pmBoise Air Term. Gowen Fld

1h 06m

BZN3:14 pmBozeman Gallatin Field

$277

Alaska Airlines

Oct 2

BZN2:18 pmBozeman Gallatin Field

6h 06m

1 stop

BOI8:24 pmBoise Air Term. Gowen Fld

Oct 4

BOI3:57 pmBoise Air Term. Gowen Fld

1h 06m

BZN5:03 pmBozeman Gallatin Field

$312

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

Quickest round-trip

BozemanBoise

BZN - BOI

BZNBOI

Bozeman Gallatin Field

Mon 11/2

2:54 pm-4:08 pm

Nonstop1h 14m

Boise Air Term. Gowen Fld

Sun 11/8

2:08 pm-3:14 pm

Nonstop1h 06m

$217

BozemanBoise

BZN - BOI

BZNBOI

Bozeman Gallatin Field

Thu 7/9

5:15 am-9:29 am

1 stop4h 14m

Boise Air Term. Gowen Fld

Sat 7/11

5:15 pm-10:03 pm

1 stop4h 48m

$237

BozemanBoise

BZN - BOI

BZNBOI

Bozeman Gallatin Field

Thu 7/30

5:15 am-9:29 am

1 stop4h 14m

Boise Air Term. Gowen Fld

Mon 8/3

6:44 pm-12:04 am

1 stop5h 20m

$258

BozemanBoise

BZN - BOI

BZNBOI

Bozeman Gallatin Field

Mon 10/26

7:25 pm-11:58 pm

1 stop4h 33m

Boise Air Term. Gowen Fld

Mon 11/2

2:08 pm-3:14 pm

Nonstop1h 06m

$277

BozemanBoise

BZN - BOI

BZNBOI

Bozeman Gallatin Field

Fri 10/2

5:45 am-10:13 am

1 stop4h 28m

Boise Air Term. Gowen Fld

Sun 10/4

5:45 pm-11:59 pm

1 stop6h 14m

$278

BozemanBoise

BZN - BOI

BZNBOI

Bozeman Gallatin Field

Thu 7/30

7:15 pm-1:10 am

1 stop5h 55m

Boise Air Term. Gowen Fld

Mon 8/3

3:25 pm-1:10 am

2 stops9h 45m

$282

BozemanBoise

BZN - BOI

BZNBOI

Bozeman Gallatin Field

Sat 9/26

5:45 am-10:13 am

1 stop4h 28m

Boise Air Term. Gowen Fld

Sat 9/26

5:45 pm-11:59 pm

1 stop6h 14m

$297

BozemanBoise

BZN - BOI

BZNBOI

Bozeman Gallatin Field

Wed 7/15

7:00 pm-12:25 am

1 stop5h 25m

Boise Air Term. Gowen Fld

Sat 7/18

5:10 pm-9:55 pm

1 stop4h 45m

$306

MissoulaJackson

MSO - JAC

MSOJAC

Missoula Johnson-Bell Field

Sat 5/23

7:15 am-8:58 pm

2 stops13h 43m

Jackson Hole

Sun 5/24

8:00 am-10:36 pm

1 stop14h 36m

$862

MissoulaJackson

MSO - JAC

MSOJAC

Missoula Johnson-Bell Field

Sat 5/23

7:15 am-8:58 pm

2 stops13h 43m

Jackson Hole

Sun 5/24

7:05 am-10:36 pm

2 stops15h 31m

$867

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 Montana to Idaho

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 Idaho?

In general, July is the cheapest month to fly from Montana to Idaho. Due to it being the ‘off-season’ during this time, you can expect flight prices to be around $65. If you don’t want to visit Idaho in July, then you should wait until October to fly from Montana, when ticket prices are also cheap, with an average price of $109.

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

Our data shows that Thursday is the least expensive day to fly to Idaho. Tickets to fly out on this day can be as low as $172. On the other hand, Sunday is the most expensive day to depart from Montana because it is more convenient for both business and leisure travelers. As a result, prices tend to be around $723.

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

According to our data, the cheapest time of day to fly to Idaho is in the afternoon. momondo users have found flights departing from Montana to Idaho in the afternoon for as low as $212. Keep in mind that these prices may fluctuate based on what airline you choose and the time of year you plan to travel. At noon is when there is more demand to fly to Idaho, so prices are often more expensive at around $237 per ticket.

What is the cheapest Montana to Idaho flight route?

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

Can stopping save me money on Montana to Idaho flights?

No. A direct flight is the cheapest option for a flight between Montana to Idaho.

Cheap Montana to Idaho flight deals and tips

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

Fastest flight time	1h 14m
Direct flights	Tue
Airports in Idaho	27 airports

The fastest flight from Montana to Idaho takes 1h 14m

Direct flights go from Montana to Idaho on Tuesday. There are no airlines offering direct flights.

There are 27 airports in Idaho. From Montana there are direct flights to Boise Air Term. Gowen Fld (BOI).

Search flight deals

Frequently asked questions about flying from Montana to Idaho

When did momondo last update prices for flights from Montana to Idaho?
Prices for flights from Montana to Idaho are refreshed on a daily basis.
How many operators does momondo search for flights from Montana to Idaho?
The number of operators available for flights from Montana to Idaho is 4 as of May 2026.
How old do you have to be to fly from Montana to Idaho?
Although the minimum age for a child to fly alone is five, airlines that offer an unaccompanied minor (UMNR) service may have their own age limits, which could be impacted by factors such as flight length, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Montana to Idaho.
What documentation or ID do you need to fly to Idaho?
The necessary travel and health documents for your Idaho trip may vary depending on your travel plans and individual circumstances. Generally, you should have various documents, such as a national ID card or driver's license and a passport that is valid for six months beyond your scheduled arrival date. We recommend seeking advice from your airline or a trusted third party, such as IATA.
What is the most popular plane model from Montana to Idaho?
Based on momondo bookings for flights between Montana and Idaho, the leading plane model is Boeing 737 MAX 8, making up 39.29% of the total bookings. Other popular models include Boeing 737-800 Passenger/BBJ2 (winglets) with 21.43%, Embraer 175 with 17.86%, and Embraer 175 (Enhanced Winglets) with 10.71%.

Best airlines flying from Montana to Idaho

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

Airline	Rating	Free Cancellation	Price
Alaska Airlines	PriceFrom $117	Free Cancellation	Rating 7.9 12,360 reviews	Search Alaska Airlines flights
Delta	PriceFrom $132	Free Cancellation	Rating 7.9 8,450 reviews	Search Delta flights
United Airlines	PriceFrom $148	Free Cancellation	Rating 7.4 9,709 reviews	Search United Airlines flights
Southwest	PriceFrom $158	Free Cancellation	Rating 7.9 4,296 reviews	Search Southwest flights

Why use momondo?

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

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

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

Yes. momondo allows you to filter the results for Montana to Idaho flights to just show those with flexible booking policies.

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

Once all potential Montana to Idaho flight options are in front of you, momondo lets you sort and filter flights based on preferences such as airline, price and flight times amongst many other options.

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

Price alerts on flights to Idaho from Montana 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.