Cheap flights from Montana to Idaho from $74

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Montana to Idaho departing on 12/8. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
1 adult
0 bags

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Cheap round-trip flights

Enter your travel dates to find the best prices.
Delta Logo
5:15 am - 10:24 amBZN-BOI
5h 09m1 stop
Delta Logo
5:45 am - 11:00 amBOI-BZN
5h 15m1 stop
$147Delta
Find Deal
Wed, Jan 7 - Fri, Jan 9
Alaska Airlines Logo
3:15 pm - 4:26 pmBZN-BOI
1h 11mnonstop
Alaska Airlines Logo
1:10 pm - 2:18 pmBOI-BZN
1h 08mnonstop
$158Alaska Airlines
Find Deal
Fri, Feb 20 - Mon, Feb 23
Alaska Airlines Logo
3:03 pm - 9:05 pmBZN-BOI
6h 02m1 stop
Alaska Airlines Logo
2:15 pm - 3:23 pmBOI-BZN
1h 08mnonstop
$162Alaska Airlines
Find Deal
Wed, Jan 7 - Fri, Jan 9
Delta Logo
7:25 am - 12:30 pmBZN-GEG
6h 05m1 stop
Delta Logo
7:10 am - 2:18 pmGEG-BZN
6h 08m1 stop
$185Delta
Find Deal
Sat, Dec 6 - Sun, Dec 7
Hawaiian Airlines Logo
5:50 pm - 10:40 pmGTF-BOI
4h 50m1 stop
Hawaiian Airlines Logo
1:17 pm - 5:27 pmBOI-GTF
4h 10m1 stop
$214Hawaiian Airlines
Find Deal
Sat, Feb 28 - Tue, Mar 3
Southwest Logo
5:45 pm - 11:55 pmBZN-GEG
7h 10m1 stop
Southwest Logo
5:25 am - 3:35 pmGEG-BZN
9h 10m2 stops
$232Southwest
Find Deal
Sun, Dec 7 - Tue, Dec 9
Southwest Logo
12:55 pm - 8:30 pmBZN-GEG
8h 35m2 stops
Southwest Logo
10:20 am - 10:45 pmGEG-BZN
11h 25m2 stops
$237Southwest
Find Deal
Sat, Dec 6 - Mon, Dec 8
Hawaiian Airlines Logo
2:58 pm - 4:02 pmBZN-BOI
1h 04mnonstop
Hawaiian Airlines Logo
4:30 pm - 10:30 pmBOI-BZN
6h 00m1 stop
$248Hawaiian Airlines
Find Deal
Wed, Mar 25 - Sat, Mar 28
United Airlines Logo
7:00 am - 12:45 pmBIL-GEG
6h 45m1 stop
United Airlines Logo
5:05 am - 1:24 pmGEG-BIL
7h 19m1 stop
$483United Airlines
Find Deal
Wed, Dec 17 - Sat, Dec 27
United Airlines Logo
6:15 am - 10:03 pmMSO-BOI
15h 48m2 stops
United Airlines Logo
7:11 am - 9:39 pmBOI-MSO
14h 28m2 stops
$728United Airlines
Find Deal
Mon, Apr 13 - Wed, Apr 15

Delta flights from Montana to Idaho

Our best Delta deals on Montana to Idaho flight tickets
Delta
Jan 7
BZN5:15 amBozeman Gallatin Field
5h 09m
1 stop
BOI10:24 amBoise Air Term. Gowen Fld
Jan 9
BOI5:45 amBoise Air Term. Gowen Fld
5h 15m
1 stop
BZN11:00 amBozeman Gallatin Field
Delta
Dec 6
BZN7:25 amBozeman Gallatin Field
6h 05m
1 stop
GEG12:30 pmSpokane
Dec 7
GEG7:10 amSpokane
6h 08m
1 stop
BZN2:18 pmBozeman Gallatin Field
Delta
Feb 19
BZN5:30 amBozeman Gallatin Field
4h 54m
1 stop
BOI10:24 amBoise Air Term. Gowen Fld
Feb 22
BOI5:35 amBoise Air Term. Gowen Fld
5h 25m
1 stop
BZN11:00 amBozeman Gallatin Field

Alaska Airlines flights from Montana to Idaho

Our best Alaska Airlines deals on Montana to Idaho flight tickets
Alaska Airlines
Feb 20
BZN3:15 pmBozeman Gallatin Field
1h 11m
BOI4:26 pmBoise Air Term. Gowen Fld
Feb 23
BOI1:10 pmBoise Air Term. Gowen Fld
1h 08m
BZN2:18 pmBozeman Gallatin Field
Alaska Airlines
Jan 7
BZN3:03 pmBozeman Gallatin Field
6h 02m
1 stop
BOI9:05 pmBoise Air Term. Gowen Fld
Jan 9
BOI2:15 pmBoise Air Term. Gowen Fld
1h 08m
BZN3:23 pmBozeman Gallatin Field
Alaska Airlines
Jan 7
BZN1:46 pmBozeman Gallatin Field
1h 17m
BOI3:03 pmBoise Air Term. Gowen Fld
Jan 9
BOI2:15 pmBoise Air Term. Gowen Fld
1h 08m
BZN3:23 pmBozeman Gallatin Field

momondo Fare Finder

 
Customize your flight search to find flights from Montana to Idaho that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, momondo users made 832,500 searches. Data last updated November 9, 2025.
Use the filters below to find and compare flights from Montana to Idaho that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

BozemanBoise

BZN - BOI

BZNBOI

Bozeman Gallatin Field

Wed 1/7

5:15 am-10:24 am

1 stop5h 09m

Boise Air Term. Gowen Fld

Fri 1/9

5:45 am-11:00 am

1 stop5h 15m

$147

BozemanBoise

BZN - BOI

BZNBOI

Bozeman Gallatin Field

Fri 2/20

3:15 pm-4:26 pm

Nonstop1h 11m

Boise Air Term. Gowen Fld

Mon 2/23

1:10 pm-2:18 pm

Nonstop1h 08m

$158

BozemanBoise

BZN - BOI

BZNBOI

Bozeman Gallatin Field

Wed 1/7

3:03 pm-9:05 pm

1 stop6h 02m

Boise Air Term. Gowen Fld

Fri 1/9

2:15 pm-3:23 pm

Nonstop1h 08m

$162

BozemanSpokane

BZN - GEG

BZNGEG

Bozeman Gallatin Field

Sat 12/6

7:25 am-12:30 pm

1 stop6h 05m

Spokane

Sun 12/7

7:10 am-2:18 pm

1 stop6h 08m

$185

Great FallsBoise

GTF - BOI

GTFBOI

Great Falls

Sat 2/28

5:50 pm-10:40 pm

1 stop4h 50m

Boise Air Term. Gowen Fld

Tue 3/3

1:17 pm-5:27 pm

1 stop4h 10m

$214

BozemanSpokane

BZN - GEG

BZNGEG

Bozeman Gallatin Field

Sun 12/7

5:45 pm-11:55 pm

1 stop7h 10m

Spokane

Tue 12/9

5:25 am-3:35 pm

2 stops9h 10m

$232

BozemanSpokane

BZN - GEG

BZNGEG

Bozeman Gallatin Field

Sat 12/6

12:55 pm-8:30 pm

2 stops8h 35m

Spokane

Mon 12/8

10:20 am-10:45 pm

2 stops11h 25m

$237

BozemanBoise

BZN - BOI

BZNBOI

Bozeman Gallatin Field

Wed 3/25

2:58 pm-4:02 pm

Nonstop1h 04m

Boise Air Term. Gowen Fld

Sat 3/28

4:30 pm-10:30 pm

1 stop6h 00m

$248

BillingsSpokane

BIL - GEG

BILGEG

Billings Logan Intl

Wed 12/17

7:00 am-12:45 pm

1 stop6h 45m

Spokane

Sat 12/27

5:05 am-1:24 pm

1 stop7h 19m

$483

MissoulaBoise

MSO - BOI

MSOBOI

Missoula Johnson-Bell Field

Mon 4/13

6:15 am-10:03 pm

2 stops15h 48m

Boise Air Term. Gowen Fld

Wed 4/15

7:11 am-9:39 pm

2 stops14h 28m

$728

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
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See travel insights to Idaho from

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

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 November to fly from Montana, when ticket prices are also cheap, with an average price of $157.

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

Our data shows that Friday is the least expensive day to fly to Idaho. Tickets to fly out on this day can be as low as $162. 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 $206. 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

$78

Fastest flight time

1h 11m

Direct flights

Mon, Tue, Wed, Thu, Fri and Sat

Airports in Idaho

1 airport
The best one-way flight to Idaho from Montana in the past 72 hours is $78. The best round-trip flight deal from Montana to Idaho found on momondo in the last 72 hours is $117.
The fastest flight from Montana to Idaho takes 1h 11m
Direct flights go from Montana to Idaho on Monday, Tuesday, Wednesday, Thursday, Friday and Saturday. The only airline offering direct flights is Alaska Airlines.
There is 1 airport near Idaho: Boise Air Term. Gowen Fld (BOI)
  • 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?

  • 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?

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 AirlinesPriceFrom $106Free CancellationRating
8.0
11,255 reviews
Search Alaska Airlines flights
DeltaPriceFrom $116Free CancellationRating
7.9
8,002 reviews
Search Delta flights
SouthwestPriceFrom $158Free CancellationRating
8.0
4,236 reviews
Search Southwest flights
United AirlinesPriceFrom $331Free CancellationRating
7.4
9,012 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.

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1 adult
Tue 12/9
Tue 12/16

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