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$61+ 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 10/22. Fares are subject to change and may not be available on all flights or dates of travel.
BZN — BOI
Oct 23 — Oct 301
Thu 10/23
Thu 10/30
1 adult, Economy
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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 September 23, 2025.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$127
(Alaska Airlines)

One-way from

$61
(Alaska Airlines)

Popular in

August

Cheapest in

January

Average price

$378

Good round-trip deal

$157 or less
Provider with most accurate pricing for Bozeman Gallatin Field-Boise Air Term. Gowen Fld flight deals.
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Provider most trusted by Cheapflights users for Bozeman Gallatin Field-Boise Air Term. Gowen Fld flights.
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From Montana to Idaho
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One-way flight from Montana to Idaho
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Highest demand for flights based on searches. 32% potential increase in price ($123 potential increase over avg. RT price).
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Cheapest flight prices on average. 9% potential price decrease ($24 potential savings vs. average RT price).
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Average for round-trip flights in September 2025
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Price to beat on a round-trip flight from Montana to Idaho.
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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 September 23, 2025.

This Alaska Airlines deal was found by Cheapflights users on 9/22. 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.
Mon 12/151:44 pmBZN - BOI
Nonstop1h 15mAlaska Airlines
Sat 1/101:10 pmBOI - BZN
Nonstop1h 08mAlaska Airlines
Deal found 9/22$127
This Alaska Airlines deal was found by Cheapflights users on 9/23. 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 10/171:42 pmBZN - BOI
Nonstop1h 15mAlaska Airlines
Fri 10/242:15 pmBOI - BZN
Nonstop1h 06mAlaska Airlines
Deal found 9/23$137
This Alaska Airlines deal was found by Cheapflights users on 9/23. 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.
Thu 10/303:02 pmBZN - BOI
1 stop7h 18mAlaska Airlines
Tue 11/42:16 pmBOI - BZN
Nonstop1h 06mAlaska Airlines
Deal found 9/23$139
This Alaska Airlines deal was found by Cheapflights users on 9/23. 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 10/241:42 pmBZN - BOI
Nonstop1h 15mAlaska Airlines
Mon 10/272:16 pmBOI - BZN
Nonstop1h 06mAlaska Airlines
Deal found 9/23$142
This Alaska Airlines deal was found by Cheapflights users on 9/22. 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.
Thu 12/111:44 pmBZN - BOI
Nonstop1h 15mAlaska Airlines
Sun 1/111:10 pmBOI - BZN
Nonstop1h 08mAlaska Airlines
Deal found 9/22$147
This Southwest deal was found by Cheapflights users on 9/23. 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 10/245:00 amBZN - BOI
1 stop4h 45mSouthwest
Mon 10/275:40 pmBOI - BZN
1 stop6h 30mSouthwest
Deal found 9/23$151
This Southwest deal was found by Cheapflights users on 9/23. 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.
Thu 10/308:00 pmBZN - BOI
1 stop4h 40mSouthwest
Tue 11/412:55 pmBOI - BZN
2 stops9h 50mSouthwest
Deal found 9/23$152
This Expedia deal was found by Cheapflights users on 9/21. 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/171:42 pmBZN - BOI
Nonstop1h 15mAlaska Airlines
Mon 10/202:15 pmBOI - BZN
Nonstop1h 06mAlaska Airlines
Deal found 9/21$157
This Alaska Airlines deal was found by Cheapflights users on 9/22. 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 12/121:44 pmBZN - BOI
Nonstop1h 15mAlaska Airlines
Sat 1/101:10 pmBOI - BZN
Nonstop1h 08mAlaska Airlines
Deal found 9/22$163
This Southwest deal was found by Cheapflights users on 9/22. 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.
Thu 10/238:00 pmBZN - BOI
1 stop4h 40mSouthwest
Sun 10/265:20 amBOI - BZN
1 stop4h 15mSouthwest
Deal found 9/22$167
This Alaska Airlines deal was found by Cheapflights users on 9/22. 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 12/121:44 pmBZN - BOI
Nonstop1h 15mAlaska Airlines
Sun 1/111:10 pmBOI - BZN
Nonstop1h 08mAlaska Airlines
Deal found 9/22$173
This Alaska Airlines deal was found by Cheapflights users on 9/23. 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 10/226:00 amBIL - BOI
1 stop9h 45mAlaska Airlines
Wed 10/2911:43 amBOI - BIL
1 stop6h 56mAlaska Airlines
Deal found 9/23$200

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 September 23, 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 10/17

1:42 pm-2:57 pm

Nonstop1h 15m

Boise Air Term. Gowen Fld

Fri 10/24

2:15 pm-3:21 pm

Nonstop1h 06m

$137

BozemanBoise

BZN - BOI

BZNBOI

Bozeman Gallatin Field

Mon 12/15

1:44 pm-2:59 pm

Nonstop1h 15m

Boise Air Term. Gowen Fld

Fri 1/9

1:10 pm-2:18 pm

Nonstop1h 08m

$137

BozemanBoise

BZN - BOI

BZNBOI

Bozeman Gallatin Field

Fri 10/17

1:42 pm-2:57 pm

Nonstop1h 15m

Boise Air Term. Gowen Fld

Mon 10/20

2:15 pm-3:21 pm

Nonstop1h 06m

$137

BozemanBoise

BZN - BOI

BZNBOI

Bozeman Gallatin Field

Thu 10/30

3:02 pm-10:20 pm

1 stop7h 18m

Boise Air Term. Gowen Fld

Tue 11/4

2:16 pm-3:22 pm

Nonstop1h 06m

$139

BozemanBoise

BZN - BOI

BZNBOI

Bozeman Gallatin Field

Fri 10/24

1:42 pm-2:57 pm

Nonstop1h 15m

Boise Air Term. Gowen Fld

Mon 10/27

2:16 pm-3:22 pm

Nonstop1h 06m

$142

BozemanBoise

BZN - BOI

BZNBOI

Bozeman Gallatin Field

Thu 10/30

5:35 am-10:17 am

1 stop4h 42m

Boise Air Term. Gowen Fld

Tue 11/4

5:55 pm-12:04 am

1 stop6h 09m

$147

BozemanBoise

BZN - BOI

BZNBOI

Bozeman Gallatin Field

Wed 10/15

1:42 pm-2:57 pm

Nonstop1h 15m

Boise Air Term. Gowen Fld

Thu 10/23

2:15 pm-3:21 pm

Nonstop1h 06m

$147

BozemanBoise

BZN - BOI

BZNBOI

Bozeman Gallatin Field

Sun 11/16

1:42 pm-2:57 pm

Nonstop1h 15m

Boise Air Term. Gowen Fld

Tue 11/25

2:10 pm-3:17 pm

Nonstop1h 07m

$147

BozemanBoise

BZN - BOI

BZNBOI

Bozeman Gallatin Field

Sat 11/8

1:42 pm-2:57 pm

Nonstop1h 15m

Boise Air Term. Gowen Fld

Fri 11/14

2:16 pm-3:22 pm

Nonstop1h 06m

$147

BozemanBoise

BZN - BOI

BZNBOI

Bozeman Gallatin Field

Fri 10/24

5:00 am-9:45 am

1 stop4h 45m

Boise Air Term. Gowen Fld

Mon 10/27

5:40 pm-12:10 am

1 stop6h 30m

$151

Flights are sorted by cheapest round-trip flights first.

Deals found on 9/23

Showing 1-10 of 60 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, October is the cheapest month in which you can book a flight from Montana to Idaho (average of $314). Flying from Montana to Idaho in June is currently the most expensive (average of $398). 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 September 23, 2025.

When flying from Montana to Idaho, the time of day you decide to fly out makes little to no difference towards the overall price you’ll pay on tickets.

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 September 23, 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
10,000 reviews

Boarding

8.1

Comfort

7.8

Entertainment

7.0

Crew

8.5

Food

7.1

Overall

8.0

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
10,000 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Boarding

8.1

Comfort

7.8

Entertainment

7.0

Crew

8.5

Food

7.1

Overall

8.0

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
4,244 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Boarding

8.1

Comfort

7.8

Entertainment

7.0

Crew

8.5

Food

7.1

Overall

8.0

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
8.0
Very good
7,973 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Boarding

8.1

Comfort

7.8

Entertainment

7.0

Crew

8.5

Food

7.1

Overall

8.0

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
8,928 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Boarding

8.1

Comfort

7.8

Entertainment

7.0

Crew

8.5

Food

7.1

Overall

8.0

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 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?

    $61 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 Southwest and Delta, with prices starting from $69 and $79, 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, October is the cheapest month in which you can book a flight from Montana to Idaho (average of $314). Flying from Montana to Idaho in June is currently the most expensive (average of $398). 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.

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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 September 23, 2025.
AirlineCheapestAverageFlexibilityOn-time
Alaska AirlinesCheapest$106Average$371FlexibilityNo cancel feeOn-time75%
DeltaCheapest$116Average$410FlexibilityNo cancel feeOn-timeN/A
SouthwestCheapest$158Average$402FlexibilityNo cancel feeOn-time63%
United AirlinesCheapest$321Average$656FlexibilityNo cancel feeOn-time69%

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