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

Southwest, Delta, 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 04m on average. Another popular route from Montana to Idaho is flying from Missoula to Boise, which will take roughly 4h 03m. Keep in mind that layovers or delays could extend your travel time.

What airlines fly to Idaho?

Delta, Alaska Airlines and Southwest are the top three most popular airlines that fly to Idaho from Montana according to our data. Delta is the first choice among our users, with 51% 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 September 2025.

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.

$129 Cheap Flights from Montana to Idaho in 2025/26

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Find the cheapest flights from Montana to Idaho

Round-trip

One-way

Last minute

Direct

Cheap round-trip flights

5:35 am - 10:17 amBZN-BOI

4h 42m1 stop

6:00 am - 10:44 amBOI-BZN

4h 44m1 stop

$157Delta

Find Deal

Wed, Oct 15 - Sat, Oct 18

8:00 am - 3:12 pmBZN-BOI

7h 12m1 stop

10:05 am - 2:08 pmBOI-BZN

4h 03m1 stop

$161Alaska Airlines

Find Deal

Fri, Nov 14 - Sun, Nov 16

5:30 am - 10:15 amBZN-BOI

4h 45m1 stop

4:50 pm - 12:15 amBOI-BZN

7h 25m2 stops

$162Southwest

Find Deal

Thu, Nov 20 - Mon, Nov 24

5:35 am - 10:17 amBZN-BOI

4h 42m1 stop

6:00 am - 10:44 amBOI-BZN

4h 44m1 stop

$167Delta

Find Deal

Wed, Oct 15 - Sun, Oct 19

1:42 pm - 2:57 pmBZN-BOI

1h 15mnonstop

5:38 pm - 10:37 pmBOI-BZN

4h 59m1 stop

$171Alaska Airlines

Find Deal

Thu, Oct 23 - Thu, Oct 23

6:00 am - 12:20 pmBZN-BOI

6h 20m1 stop

3:55 pm - 11:10 pmBOI-BZN

7h 15m2 stops

$172Southwest

Find Deal

Fri, Oct 24 - Mon, Oct 27

2:35 pm - 8:15 pmMSO-BOI

5h 40m1 stop

9:50 am - 1:52 pmBOI-MSO

4h 02m1 stop

$242Hawaiian Airlines

Find Deal

Sat, Feb 28 - Tue, Mar 3

8:00 am - 2:36 pmBZN-BOI

6h 36m1 stop

5:38 pm - 10:37 pmBOI-BZN

4h 59m1 stop

$246Hawaiian Airlines

Find Deal

Fri, Oct 24 - Fri, Oct 24

5:00 am - 9:42 amBIL-BOI

4h 42m1 stop

2:39 pm - 9:35 amBOI-BIL

18h 56m1 stop

$474United Airlines

Find Deal

Thu, Oct 16 - Tue, Oct 21

5:00 am - 9:53 amBIL-BOI

4h 53m1 stop

5:00 am - 9:35 amBOI-BIL

4h 35m1 stop

$479United Airlines

Find Deal

Wed, Oct 15 - Sun, Oct 19

Delta flights from Montana to Idaho

Our best Delta deals on Montana to Idaho flight tickets

Delta

Oct 15

BZN5:35 amBozeman Gallatin Field

4h 42m

1 stop

BOI10:17 amBoise Air Term. Gowen Fld

Oct 18

BOI6:00 amBoise Air Term. Gowen Fld

4h 44m

1 stop

BZN10:44 amBozeman Gallatin Field

$157

Find similar

Delta

Oct 15

BZN5:35 amBozeman Gallatin Field

4h 42m

1 stop

BOI10:17 amBoise Air Term. Gowen Fld

Oct 19

BOI6:00 amBoise Air Term. Gowen Fld

4h 44m

1 stop

BZN10:44 amBozeman Gallatin Field

$167

Find similar

Delta

Oct 19

BZN5:35 amBozeman Gallatin Field

4h 42m

1 stop

BOI10:17 amBoise Air Term. Gowen Fld

Oct 26

BOI6:00 amBoise Air Term. Gowen Fld

4h 44m

1 stop

BZN10:44 amBozeman Gallatin Field

$177

Find similar

Alaska Airlines flights from Montana to Idaho

Our best Alaska Airlines deals on Montana to Idaho flight tickets

Alaska Airlines

Nov 14

BZN8:00 amBozeman Gallatin Field

7h 12m

1 stop

BOI3:12 pmBoise Air Term. Gowen Fld

Nov 16

BOI10:05 amBoise Air Term. Gowen Fld

4h 03m

1 stop

BZN2:08 pmBozeman Gallatin Field

$161

Find similar

Alaska Airlines

Oct 23

BZN1:42 pmBozeman Gallatin Field

1h 15m

BOI2:57 pmBoise Air Term. Gowen Fld

Oct 23

BOI5:38 pmBoise Air Term. Gowen Fld

4h 59m

1 stop

BZN10:37 pmBozeman Gallatin Field

$171

Find similar

Alaska Airlines

Oct 19

BZN1:42 pmBozeman Gallatin Field

1h 15m

BOI2:57 pmBoise Air Term. Gowen Fld

Oct 24

BOI5:38 pmBoise Air Term. Gowen Fld

4h 59m

1 stop

BZN10:37 pmBozeman Gallatin Field

$187

Find similar

Fly from

Fly to

Route

Depart

Return

Price

BozemanBoise

BZN - BOI

BZNBOI

Bozeman Gallatin Field

Wed 10/15

5:35 am-10:17 am

1 stop4h 42m

Boise Air Term. Gowen Fld

Sat 10/18

6:00 am-10:44 am

1 stop4h 44m

$157

BozemanBoise

BZN - BOI

BZNBOI

Bozeman Gallatin Field

Fri 11/14

8:00 am-3:12 pm

1 stop7h 12m

Boise Air Term. Gowen Fld

Sun 11/16

10:05 am-2:08 pm

1 stop4h 03m

$161

BozemanBoise

BZN - BOI

BZNBOI

Bozeman Gallatin Field

Thu 11/20

5:30 am-10:15 am

1 stop4h 45m

Boise Air Term. Gowen Fld

Mon 11/24

4:50 pm-12:15 am

2 stops7h 25m

$162

BozemanBoise

BZN - BOI

BZNBOI

Bozeman Gallatin Field

Wed 10/15

5:35 am-10:17 am

1 stop4h 42m

Boise Air Term. Gowen Fld

Sun 10/19

6:00 am-10:44 am

1 stop4h 44m

$167

BozemanBoise

BZN - BOI

BZNBOI

Bozeman Gallatin Field

Thu 10/23

1:42 pm-2:57 pm

Nonstop1h 15m

Boise Air Term. Gowen Fld

Thu 10/23

5:38 pm-10:37 pm

1 stop4h 59m

$171

BozemanBoise

BZN - BOI

BZNBOI

Bozeman Gallatin Field

Fri 10/24

6:00 am-12:20 pm

1 stop6h 20m

Boise Air Term. Gowen Fld

Mon 10/27

3:55 pm-11:10 pm

2 stops7h 15m

$172

MissoulaBoise

MSO - BOI

MSOBOI

Missoula Johnson-Bell Field

Sat 2/28

2:35 pm-8:15 pm

1 stop5h 40m

Boise Air Term. Gowen Fld

Tue 3/3

9:50 am-1:52 pm

1 stop4h 02m

$242

BozemanBoise

BZN - BOI

BZNBOI

Bozeman Gallatin Field

Fri 10/24

8:00 am-2:36 pm

1 stop6h 36m

Boise Air Term. Gowen Fld

Fri 10/24

5:38 pm-10:37 pm

1 stop4h 59m

$246

BillingsBoise

BIL - BOI

BILBOI

Billings Logan Intl

Thu 10/16

5:00 am-9:42 am

1 stop4h 42m

Boise Air Term. Gowen Fld

Tue 10/21

2:39 pm-9:35 am

1 stop18h 56m

$474

BillingsBoise

BIL - BOI

BILBOI

Billings Logan Intl

Wed 10/15

5:00 am-9:53 am

1 stop4h 53m

Boise Air Term. Gowen Fld

Sun 10/19

5:00 am-9:35 am

1 stop4h 35m

$479

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, January 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 $106. If you don’t want to visit Idaho in January, then you should wait until February to fly from Montana, when ticket prices are also cheap, with an average price of $146.

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 $182. 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 $408.

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 at noon. momondo users have found flights departing from Montana to Idaho at noon for as low as $222. Keep in mind that these prices may fluctuate based on what airline you choose and the time of year you plan to travel. In the morning is when there is more demand to fly to Idaho, so prices are often more expensive at around $297 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

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

There are 2 cabin classes available to choose from on Montana to Idaho 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 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

Best Price Found	$109
Fastest flight time	1h 15m
Direct flights	Mon, Thu, Fri, Sat and Sun
Airports in Idaho	1 airport

The best flight deal from Montana to Idaho found on momondo in the last 72 hours is $109

The fastest flight from Montana to Idaho takes 1h 15m

Direct flights go from Montana to Idaho on Monday, Thursday, Friday, Saturday and Sunday. The only airline offering direct flights is Hawaiian Airlines.

There is 1 airport near Idaho: Boise Air Term. Gowen Fld (BOI)

Search flight deals

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 September 2025.
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 26.19% of the total bookings. Other popular models include Embraer 175 with 23.81%, Airbus A319 with 21.43%, and Boeing 737-800 Passenger/BBJ2 (winglets) with 16.67%.

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 $106	Free Cancellation	Rating 8.0 10,000 reviews	Search Alaska Airlines flights
Delta	PriceFrom $116	Free Cancellation	Rating 7.9 7,964 reviews	Search Delta flights
Southwest	PriceFrom $158	Free Cancellation	Rating 8.0 4,242 reviews	Search Southwest flights
United Airlines	PriceFrom $321	Free Cancellation	Rating 7.4 8,926 reviews	Search United Airlines 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.