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Idaho

$109+ Cheap flights from Montana to Idaho

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 3/5. Fares are subject to change and may not be available on all flights or dates of travel.
BZN — BOI
Dec 13 — Dec 201
Sat 12/13
Sat 12/20
1 adult, Economy
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Find flight deals from Montana to Idaho

Cheapest flights from Montana to Idaho
Explore the most affordable flight options available from Montana to Idaho. Find the lowest fares from popular airlines and budget airlines, with prices last updated on November 13, 2025.

This Cheapflightsfares deal was found by Cheapflights users on 11/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 12/61:44 pmBZN - BOI
Nonstop1h 15mAlaska Airlines
Mon 12/82:10 pmBOI - BZN
Nonstop1h 08mAlaska Airlines
Deal found 11/10$126
This Alaska Airlines deal was found by Cheapflights users on 11/13. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 12/51:44 pmBZN - BOI
Nonstop1h 15mAlaska Airlines
Sat 12/62:10 pmBOI - BZN
Nonstop1h 08mAlaska Airlines
Deal found 11/13$127
This Delta deal was found by Cheapflights users on 11/13. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 12/55:30 amBZN - BOI
1 stop4h 45mDelta
Sat 12/65:58 pmBOI - BZN
1 stop5h 09mDelta
Deal found 11/13$137
This Cheapflightsfares deal was found by Cheapflights users on 11/11. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 12/191:43 pmBZN - BOI
Nonstop1h 22mAlaska Airlines
Tue 12/232:08 pmBOI - BZN
Nonstop1h 09mAlaska Airlines
Deal found 11/11$156
This Cheapflightsfares deal was found by Cheapflights users on 11/11. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 12/191:43 pmBZN - BOI
Nonstop1h 22mAlaska Airlines
Mon 12/222:08 pmBOI - BZN
Nonstop1h 09mAlaska Airlines
Deal found 11/11$171
This Delta deal was found by Cheapflights users on 11/12. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 12/63:00 pmBZN - GEG
1 stop6h 57mDelta
Mon 12/83:35 pmGEG - BZN
1 stop5h 51mDelta
Deal found 11/12$185
This Delta deal was found by Cheapflights users on 11/11. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 12/75:30 amBZN - BOI
1 stop4h 45mDelta
Fri 12/125:58 pmBOI - BZN
1 stop6h 20mDelta
Deal found 11/11$187
This Alaska Airlines deal was found by Cheapflights users on 11/11. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 12/71:44 pmBZN - BOI
Nonstop1h 15mAlaska Airlines
Fri 12/122:10 pmBOI - BZN
Nonstop1h 08mAlaska Airlines
Deal found 11/11$198
This Alaska Airlines deal was found by Cheapflights users on 11/11. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/32:58 pmBZN - GEG
1 stop5h 07mAlaska Airlines
Fri 12/57:15 amGEG - BZN
1 stop5h 49mAlaska Airlines
Deal found 11/11$220
This Southwest deal was found by Cheapflights users on 11/13. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 12/125:00 amBZN - BOI
1 stop5h 05mSouthwest
Mon 12/155:15 amBOI - BZN
1 stop4h 40mSouthwest
Deal found 11/13$223
This Alaska Airlines deal was found by Cheapflights users on 11/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/96:29 amMSO - GEG
1 stop7h 10mAlaska Airlines
Tue 12/161:33 pmGEG - MSO
1 stop9h 53mAlaska Airlines
Deal found 11/10$224
This Alaska Airlines deal was found by Cheapflights users on 11/11. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 12/67:00 amBZN - GEG
1 stop18h 24mAlaska Airlines
Mon 12/89:00 amGEG - BZN
1 stop4h 04mAlaska Airlines
Deal found 11/11$224

Cheap flight deals from Montana to Idaho

Keep the following information in mind while searching for Montana to Idaho flight deals. Data was last updated November 13, 2025.

Most accurate provider

eDreams
3 stars

Most trusted provider

eDreams
3 stars

Round-trip from

$126
(Cheapflightsfares)

One-way from

$109
(Alaska Airlines)

Popular in

August

Cheapest in

January

Average price

$157

Good round-trip deal

$117 or less

Good one-way deal

$78 or less
Provider with most accurate pricing for Bozeman Gallatin Field-Boise Air Term. Gowen Fld flight deals.
Search Deals
Provider most trusted by Cheapflights users for Bozeman Gallatin Field-Boise Air Term. Gowen Fld flights.
Search Deals
From Montana to Idaho
Search Deals
One-way flight from Montana to Idaho
Search Deals
Highest demand for flights based on searches. 35% potential increase in price ($136 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 10% potential price decrease ($24 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in November 2025
Search Deals
Price to beat on a round-trip flight from Montana to Idaho.
Search Deals
Price to beat on a one-way flight from Montana to Idaho.
Search Deals

Cheapflights 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, Cheapflights users made 2,558,603 searches. Data last updated November 13, 2025.
Use the filters below to find and compare flights from Montana to Idaho that are best for you.

Fly from

Montana

Fly to

Idaho

Route

Depart

Return

Price

BozemanBoise

BZN - BOI

BZNBOI

Bozeman Gallatin Field

Fri 12/5

1:44 pm-2:59 pm

Nonstop1h 15m

Boise Air Term. Gowen Fld

Sat 12/6

2:10 pm-3:18 pm

Nonstop1h 08m

$127

BozemanBoise

BZN - BOI

BZNBOI

Bozeman Gallatin Field

Sat 12/6

5:30 am-10:15 am

1 stop4h 45m

Boise Air Term. Gowen Fld

Mon 12/8

5:58 pm-12:18 am

1 stop6h 20m

$137

BozemanBoise

BZN - BOI

BZNBOI

Bozeman Gallatin Field

Fri 1/16

1:46 pm-3:03 pm

Nonstop1h 17m

Boise Air Term. Gowen Fld

Mon 1/19

2:15 pm-3:23 pm

Nonstop1h 08m

$137

BozemanBoise

BZN - BOI

BZNBOI

Bozeman Gallatin Field

Fri 1/16

1:46 pm-3:03 pm

Nonstop1h 17m

Boise Air Term. Gowen Fld

Sun 1/18

9:10 am-1:06 pm

1 stop3h 56m

$147

BozemanBoise

BZN - BOI

BZNBOI

Bozeman Gallatin Field

Fri 12/19

1:43 pm-3:05 pm

Nonstop1h 22m

Boise Air Term. Gowen Fld

Mon 12/22

6:00 pm-11:59 pm

1 stop5h 59m

$147

BozemanBoise

BZN - BOI

BZNBOI

Bozeman Gallatin Field

Fri 2/20

1:48 pm-3:07 pm

Nonstop1h 19m

Boise Air Term. Gowen Fld

Mon 2/23

2:15 pm-3:22 pm

Nonstop1h 07m

$158

BozemanBoise

BZN - BOI

BZNBOI

Bozeman Gallatin Field

Fri 1/16

5:15 am-10:24 am

1 stop5h 09m

Boise Air Term. Gowen Fld

Mon 1/19

10:38 am-10:27 pm

1 stop11h 49m

$176

BozemanBoise

BZN - BOI

BZNBOI

Bozeman Gallatin Field

Fri 3/27

2:58 pm-4:02 pm

Nonstop1h 04m

Boise Air Term. Gowen Fld

Tue 3/31

1:10 pm-2:18 pm

Nonstop1h 08m

$178

BozemanSpokane

BZN - GEG

BZNGEG

Bozeman Gallatin Field

Sat 12/6

7:25 am-10:39 am

1 stop4h 14m

Spokane

Mon 12/8

6:05 am-2:18 pm

1 stop7h 13m

$185

BozemanSpokane

BZN - GEG

BZNGEG

Bozeman Gallatin Field

Wed 12/3

2:58 pm-7:05 pm

1 stop5h 07m

Spokane

Fri 12/5

7:15 am-2:04 pm

1 stop5h 49m

$220

Flights are sorted by cheapest round-trip flights first.

Deals found on 11/12

Showing 1-10 of 56 results
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Best time to book a flight from Montana to Idaho

Have a flexible travel schedule? Discover the best time to fly to Idaho from Montana with our price prediction graph.
Estimated round-trip price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Cheapflights Insights

Everything you need to know about your flight from Montana to Idaho

What is the cheapest month to book a flight from Montana to Idaho?

Currently, January is the cheapest month in which you can book a flight from Montana to Idaho (average of $102). Flying from Montana to Idaho in September is currently the most expensive (average of $186). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

What is the cheapest time of day to fly from MT to ID?

Find hourly flight availability from Montana to Idaho. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated November 13, 2025.

It’s optimal to fly from Montana to Idaho in the evening. By choosing this option you can save up to 41% on the cost of your flight, compared to a flight in the morning.

Weekly flight availability from Montana to Idaho

Explore weekly flight availability from Montana to Idaho. Discover flights operating on different days of the week, giving you the flexibility to choose a travel day that best fits your plans. Compare info to find the most convenient option for your journey. Data last updated November 13, 2025.

The most flights from USMT to USID are scheduled on a Monday (2 on average). You will have fewer flight options on Monday, which is when the least amount of flights are scheduled (2 on average).

Reviews of airlines servicing Idaho

Get insights into the airlines that provide service to Idaho. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Idaho. Reviews last updated November 13, 2025.
Read through reviews of airlines operating flights from Montana to Idaho, such as Alaska Airlines, Southwest, and Delta. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.
Alaska Airlines
8.0
Very good
11,281 reviews

Comfort

7.8

Overall

8.0

Crew

8.5

Boarding

8.1

Food

7.1

Entertainment

7.0

Reviews

1 / 20
10.0
Excellent

Anonymous,Sep 2025

BOS - HNL

The flight was awesome but a little long. I would prefer a flight with a layover. The amount of space available was minimal and a little uncomfortable for that long of a flight.
Alaska Airlines
8.0
Very good
11,281 reviews
Alaska Airlines
8.0
Very good
11,281 reviews

Comfort

7.8

Overall

8.0

Crew

8.5

Boarding

8.1

Food

7.1

Entertainment

7.0

Reviews

1 / 20
10.0
Excellent

Anonymous,Sep 2025

BOS - HNL

The flight was awesome but a little long. I would prefer a flight with a layover. The amount of space available was minimal and a little uncomfortable for that long of a flight.
Southwest
8.0
Very good
4,236 reviews
Alaska Airlines
8.0
Very good
11,281 reviews

Comfort

7.8

Overall

8.0

Crew

8.5

Boarding

8.1

Food

7.1

Entertainment

7.0

Reviews

1 / 20
10.0
Excellent

Anonymous,Sep 2025

BOS - HNL

The flight was awesome but a little long. I would prefer a flight with a layover. The amount of space available was minimal and a little uncomfortable for that long of a flight.
Delta
7.9
Good
8,007 reviews
Alaska Airlines
8.0
Very good
11,281 reviews

Comfort

7.8

Overall

8.0

Crew

8.5

Boarding

8.1

Food

7.1

Entertainment

7.0

Reviews

1 / 20
10.0
Excellent

Anonymous,Sep 2025

BOS - HNL

The flight was awesome but a little long. I would prefer a flight with a layover. The amount of space available was minimal and a little uncomfortable for that long of a flight.
United Airlines
7.4
Good
9,015 reviews
Alaska Airlines
8.0
Very good
11,281 reviews

Comfort

7.8

Overall

8.0

Crew

8.5

Boarding

8.1

Food

7.1

Entertainment

7.0

Reviews

1 / 20
10.0
Excellent

Anonymous,Sep 2025

BOS - HNL

The flight was awesome but a little long. I would prefer a flight with a layover. The amount of space available was minimal and a little uncomfortable for that long of a flight.

Related info for your journey

Find useful and relevant information for your journey from Montana to Idaho. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • How popular is this Montana to Idaho flight route?

    Flights from Montana to Idaho have been viewed 1 times in the past calendar month.

  • How long is the flight from Montana to Idaho?

    Departing from Montana to Idaho will take you 1h 15m. There are 292 mi between Montana and Idaho. When browsing for deals, the options you’ll see will be for both nonstop flights and flights with stops.

  • What are the cheapest airlines to fly from Montana to Idaho one-way?

    $109 is the cheapest one-way deal found within the past few days, from Alaska Airlines. You may also be able to find cheap deals on Hawaiian Airlines and Delta, with prices starting from $113 and $120, respectively.

  • Can I find deals for flights from Montana to Idaho that include hotel bookings?

    Yes. In addition to deals on Montana to Idaho flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Montana to Idaho?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Montana to Idaho.

  • Can I find deals for business class flights from Montana to Idaho?

    Yes. Cheapflights offers flight deals from Montana to Idaho by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

  • What is the cheapest month to book a flight from Montana to Idaho?

    Currently, January is the cheapest month in which you can book a flight from Montana to Idaho (average of $102). Flying from Montana to Idaho in September is currently the most expensive (average of $186). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

See more FAQs

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Alternative routes for Montana to Idaho

See prices for flight routes from nearby airports that may be better suited for you.
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Top 4 airlines flying from Montana to Idaho

Discover the top 4 airlines that operate flights from Montana to Idaho. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated November 13, 2025.
AirlineCheapestAverageFlexibilityOn-time
Alaska AirlinesCheapest$106Average$343FlexibilityNo cancel feeOn-time75%
DeltaCheapest$116Average$416FlexibilityNo cancel feeOn-timeN/A
SouthwestCheapest$158Average$406FlexibilityNo cancel feeOn-time63%
United AirlinesCheapest$331Average$656FlexibilityNo cancel feeOn-time69%

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