HomeSearch by dateVacation packagesHotelsFlight dealsCar rentalTravel tips & news
Idaho

$79+ 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 2/25. Fares are subject to change and may not be available on all flights or dates of travel.
BZN — BOI
Feb 11 — Feb 181
Wed 2/11
Wed 2/18
1 adult, Economy
We work with more than 300 partners to bring you better travel deals

Find cheap flights from Montana to Idaho with Cheapflights

1. Tell us where you want to go

Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”

2. Select your favorite providers

We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.

3. Compare prices and book

Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.

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 January 12, 2026.

Most accurate provider

eDreams
3 stars

Most trusted provider

eDreams
3 stars

Round-trip from

$127
(Alaska Airlines)

One-way from

$79
(Alaska Airlines)

Popular in

May

Cheapest in

January

Average price

$137

Good round-trip deal

$327 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. 15% potential increase in price ($43 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 5% potential price decrease ($14 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in January 2026
Search Deals
Price to beat on a round-trip flight from Montana to Idaho.
Search Deals

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 January 12, 2026.

This Alaska Airlines deal was found by Cheapflights users on 1/11. 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 2/181:48 pm
BZN
-
BOI
Nonstop1h 19m
Alaska Airlines
Sun 2/222:15 pm
BOI
-
BZN
Nonstop1h 07m
Alaska Airlines
Deal found 1/11$127
This Alaska Airlines deal was found by Cheapflights users on 1/12. 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 2/201:48 pm
BZN
-
BOI
Nonstop1h 19m
Alaska Airlines
Mon 2/232:15 pm
BOI
-
BZN
Nonstop1h 07m
Alaska Airlines
Deal found 1/12$137
This Alaska Airlines deal was found by Cheapflights users on 1/12. 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 2/201:48 pm
BZN
-
BOI
Nonstop1h 19m
Alaska Airlines
Tue 2/242:15 pm
BOI
-
BZN
Nonstop1h 07m
Alaska Airlines
Deal found 1/12$142
This Alaska Airlines deal was found by Cheapflights users on 1/12. 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 2/37:20 am
BZN
-
BOI
1 stop7h 50m
Alaska Airlines
Wed 2/42:15 pm
BOI
-
BZN
Nonstop1h 08m
Alaska Airlines
Deal found 1/12$147
This Alaska Airlines deal was found by Cheapflights users on 1/12. 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 2/191:48 pm
BZN
-
BOI
Nonstop1h 19m
Alaska Airlines
Mon 2/232:15 pm
BOI
-
BZN
Nonstop1h 07m
Alaska Airlines
Deal found 1/12$152
This Alaska Airlines deal was found by Cheapflights users on 1/12. 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 2/21:46 pm
BZN
-
BOI
Nonstop1h 17m
Alaska Airlines
Wed 2/42:15 pm
BOI
-
BZN
Nonstop1h 08m
Alaska Airlines
Deal found 1/12$157
This Alaska Airlines deal was found by Cheapflights users on 1/11. 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.
Mon 2/91:46 pm
BZN
-
BOI
Nonstop1h 17m
Alaska Airlines
Mon 2/162:15 pm
BOI
-
BZN
Nonstop1h 07m
Alaska Airlines
Deal found 1/11$162
This Alaska Airlines deal was found by Cheapflights users on 1/12. 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 2/81:46 pm
BZN
-
BOI
Nonstop1h 17m
Alaska Airlines
Mon 2/95:55 pm
BOI
-
BZN
1 stop6h 01m
Alaska Airlines
Deal found 1/12$167
This Alaska Airlines deal was found by Cheapflights users on 1/12. 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 2/41:46 pm
BZN
-
BOI
Nonstop1h 17m
Alaska Airlines
Wed 2/45:55 pm
BOI
-
BZN
1 stop6h 01m
Alaska Airlines
Deal found 1/12$176
This Delta deal was found by Cheapflights users on 1/12. 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.
Tue 2/35:15 am
BZN
-
BOI
1 stop5h 09m
Delta
Sat 2/711:20 am
BOI
-
BZN
1 stop6h 30m
Delta
Deal found 1/12$177
This Alaska Airlines deal was found by Cheapflights users on 1/12. 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 2/41:46 pm
BZN
-
BOI
Nonstop1h 17m
Alaska Airlines
Sat 2/710:00 am
BOI
-
BZN
1 stop4h 09m
Alaska Airlines
Deal found 1/12$182
This Alaska Airlines deal was found by Cheapflights users on 1/12. 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 2/57:20 am
BZN
-
BOI
1 stop7h 50m
Alaska Airlines
Thu 2/55:55 pm
BOI
-
BZN
1 stop6h 01m
Alaska Airlines
Deal found 1/12$186

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 January 12, 2026.
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 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

$137

BozemanBoise

BZN - BOI

BZNBOI

Bozeman Gallatin Field

Thu 2/19

5:30 am-9:45 am

1 stop4h 15m

Boise Air Term. Gowen Fld

Mon 2/23

6:35 pm-11:15 pm

1 stop4h 40m

$137

BozemanBoise

BZN - BOI

BZNBOI

Bozeman Gallatin Field

Tue 2/3

1:46 pm-3:03 pm

Nonstop1h 17m

Boise Air Term. Gowen Fld

Wed 2/4

2:15 pm-3:23 pm

Nonstop1h 08m

$137

BozemanBoise

BZN - BOI

BZNBOI

Bozeman Gallatin Field

Fri 2/20

1:48 pm-3:07 pm

Nonstop1h 19m

Boise Air Term. Gowen Fld

Tue 2/24

2:15 pm-3:22 pm

Nonstop1h 07m

$142

BozemanBoise

BZN - BOI

BZNBOI

Bozeman Gallatin Field

Fri 2/6

7:20 am-3:10 pm

1 stop7h 50m

Boise Air Term. Gowen Fld

Mon 2/9

5:55 pm-11:56 pm

1 stop6h 01m

$157

BozemanBoise

BZN - BOI

BZNBOI

Bozeman Gallatin Field

Thu 2/5

7:20 am-12:51 pm

1 stop5h 31m

Boise Air Term. Gowen Fld

Sun 2/8

9:02 am-2:09 pm

1 stop5h 07m

$157

BozemanBoise

BZN - BOI

BZNBOI

Bozeman Gallatin Field

Mon 2/9

1:46 pm-3:03 pm

Nonstop1h 17m

Boise Air Term. Gowen Fld

Mon 2/16

2:15 pm-3:22 pm

Nonstop1h 07m

$162

BozemanBoise

BZN - BOI

BZNBOI

Bozeman Gallatin Field

Sun 2/8

1:46 pm-3:03 pm

Nonstop1h 17m

Boise Air Term. Gowen Fld

Mon 2/9

5:55 pm-11:56 pm

1 stop6h 01m

$167

BozemanSpokane

BZN - GEG

BZNGEG

Bozeman Gallatin Field

Sat 1/31

6:30 pm-10:51 pm

1 stop5h 21m

Spokane

Tue 2/3

6:05 am-2:20 pm

1 stop7h 15m

$219

MissoulaBoise

MSO - BOI

MSOBOI

Missoula Johnson-Bell Field

Sat 2/7

6:23 am-10:52 am

1 stop4h 29m

Boise Air Term. Gowen Fld

Sat 2/14

6:00 pm-11:59 pm

1 stop5h 59m

$230

Flights are sorted by cheapest round-trip flights first.

Deals found on 1/12

Showing 1-10 of 60 results
1
2
3
...
6

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, July is the cheapest month in which you can book a flight from Montana to Idaho (average of $105). 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 January 12, 2026.

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 January 12, 2026.
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
11,696 reviews

Food

7.1

Comfort

7.8

Entertainment

7.0

Boarding

8.1

Crew

8.5

Overall

8.0

Reviews

1 / 20
4.0
Okay

Anonymous,Dec 2025

SEA - MSY

I really got a lesson in upgrades. I let my seat get chosen . Both times a middle seat...on purpose ...even when we were not full. That's petty I sat behind the first class . They got more than 1 drink ...and a snack . .and the staff actually talked to them...behind a see thru shawl/sheet in the aisle....... You could see over the seats just fine and you could hear the voices just fine. But the sheet let You KNOW. Your not welcome here. For a moment I regretted not spending 300 dollars per seat so I could see a smile and eat a sandwhich and enjoy my seat . The married couple drank champain and laughed and flirted with each other. It looked so happy and care free MONEY really does buy happiness ..the hateful glares and sighs from my seat mates brought me back to reality I wasn't rich and I still had 2 hours left in this middle seat.
Alaska Airlines
8.0
Very good
11,696 reviews
Alaska Airlines
8.0
Very good
11,696 reviews

Food

7.1

Comfort

7.8

Entertainment

7.0

Boarding

8.1

Crew

8.5

Overall

8.0

Reviews

1 / 20
4.0
Okay

Anonymous,Dec 2025

SEA - MSY

I really got a lesson in upgrades. I let my seat get chosen . Both times a middle seat...on purpose ...even when we were not full. That's petty I sat behind the first class . They got more than 1 drink ...and a snack . .and the staff actually talked to them...behind a see thru shawl/sheet in the aisle....... You could see over the seats just fine and you could hear the voices just fine. But the sheet let You KNOW. Your not welcome here. For a moment I regretted not spending 300 dollars per seat so I could see a smile and eat a sandwhich and enjoy my seat . The married couple drank champain and laughed and flirted with each other. It looked so happy and care free MONEY really does buy happiness ..the hateful glares and sighs from my seat mates brought me back to reality I wasn't rich and I still had 2 hours left in this middle seat.
Southwest
8.0
Very good
4,256 reviews
Alaska Airlines
8.0
Very good
11,696 reviews

Food

7.1

Comfort

7.8

Entertainment

7.0

Boarding

8.1

Crew

8.5

Overall

8.0

Reviews

1 / 20
4.0
Okay

Anonymous,Dec 2025

SEA - MSY

I really got a lesson in upgrades. I let my seat get chosen . Both times a middle seat...on purpose ...even when we were not full. That's petty I sat behind the first class . They got more than 1 drink ...and a snack . .and the staff actually talked to them...behind a see thru shawl/sheet in the aisle....... You could see over the seats just fine and you could hear the voices just fine. But the sheet let You KNOW. Your not welcome here. For a moment I regretted not spending 300 dollars per seat so I could see a smile and eat a sandwhich and enjoy my seat . The married couple drank champain and laughed and flirted with each other. It looked so happy and care free MONEY really does buy happiness ..the hateful glares and sighs from my seat mates brought me back to reality I wasn't rich and I still had 2 hours left in this middle seat.
Delta
7.9
Good
8,039 reviews
Alaska Airlines
8.0
Very good
11,696 reviews

Food

7.1

Comfort

7.8

Entertainment

7.0

Boarding

8.1

Crew

8.5

Overall

8.0

Reviews

1 / 20
4.0
Okay

Anonymous,Dec 2025

SEA - MSY

I really got a lesson in upgrades. I let my seat get chosen . Both times a middle seat...on purpose ...even when we were not full. That's petty I sat behind the first class . They got more than 1 drink ...and a snack . .and the staff actually talked to them...behind a see thru shawl/sheet in the aisle....... You could see over the seats just fine and you could hear the voices just fine. But the sheet let You KNOW. Your not welcome here. For a moment I regretted not spending 300 dollars per seat so I could see a smile and eat a sandwhich and enjoy my seat . The married couple drank champain and laughed and flirted with each other. It looked so happy and care free MONEY really does buy happiness ..the hateful glares and sighs from my seat mates brought me back to reality I wasn't rich and I still had 2 hours left in this middle seat.
United Airlines
7.4
Good
9,148 reviews
Alaska Airlines
8.0
Very good
11,696 reviews

Food

7.1

Comfort

7.8

Entertainment

7.0

Boarding

8.1

Crew

8.5

Overall

8.0

Reviews

1 / 20
4.0
Okay

Anonymous,Dec 2025

SEA - MSY

I really got a lesson in upgrades. I let my seat get chosen . Both times a middle seat...on purpose ...even when we were not full. That's petty I sat behind the first class . They got more than 1 drink ...and a snack . .and the staff actually talked to them...behind a see thru shawl/sheet in the aisle....... You could see over the seats just fine and you could hear the voices just fine. But the sheet let You KNOW. Your not welcome here. For a moment I regretted not spending 300 dollars per seat so I could see a smile and eat a sandwhich and enjoy my seat . The married couple drank champain and laughed and flirted with each other. It looked so happy and care free MONEY really does buy happiness ..the hateful glares and sighs from my seat mates brought me back to reality I wasn't rich and I still had 2 hours left in this middle seat.

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 19m. 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.

  • 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, July is the cheapest month in which you can book a flight from Montana to Idaho (average of $105). 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

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

Alternative routes for Montana to Idaho

See prices for flight routes from nearby airports that may be better suited for you.
John F Kennedy Intl to Fort Lauderdale flights
Newark to Miami flights
John F Kennedy Intl to Miami flights
Newark to Fort Lauderdale flights
LaGuardia to Miami flights
LaGuardia to Fort Lauderdale flights
John F Kennedy Intl to West Palm Beach flights
Newark to West Palm Beach flights
John F Kennedy Intl to Orlando flights
John F Kennedy Intl to Los Angeles flights
John F Kennedy Intl to Las Vegas flights
Newark to Las Vegas flights
Newark to Orlando flights
O'Hare Intl to Las Vegas flights
Los Angeles to John F Kennedy Intl flights
Dulles Intl to Miami flights
Minneapolis to Sky Harbor Intl flights
John F Kennedy Intl to Tampa flights
O'Hare Intl to Sky Harbor Intl flights
John F Kennedy Intl to Dallas/Fort Worth flights
Detroit to Orlando flights
Newark to Tampa flights
Reagan-National to Miami flights
Seattle to Los Angeles flights
John F Kennedy Intl to Sky Harbor Intl flights
Seattle to Las Vegas flights
Dallas/Fort Worth to Las Vegas flights
O'Hare Intl to Dallas/Fort Worth flights
LaGuardia to Orlando flights
San Francisco to Las Vegas flights
San Francisco to John F Kennedy Intl flights
LaGuardia to West Palm Beach flights
Baltimore to Fort Lauderdale flights
Boston to Fort Lauderdale flights
O'Hare Intl to Fort Lauderdale flights
LaGuardia to Tampa flights
Boston to Tampa flights
Dallas/Fort Worth to John F Kennedy Intl flights
Newark to Los Angeles flights
John F Kennedy Intl to San Francisco flights
Dallas/Fort Worth to O'Hare Intl flights
Dulles Intl to Orlando flights
Philadelphia to Orlando flights
Philadelphia to Miami flights
Los Angeles to Seattle flights
Dallas/Fort Worth to LaGuardia flights
O'Hare Intl to John F Kennedy Intl flights
Seattle to Sky Harbor Intl flights
Los Angeles to Honolulu flights
Boston to Miami flights

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 January 12, 2026.
AirlineCheapestAverageFlexibilityOn-time
Alaska AirlinesCheapest$109Average$327FlexibilityNo cancel feeOn-time75%
DeltaCheapest$116Average$409FlexibilityNo cancel feeOn-timeN/A
SouthwestCheapest$158Average$406FlexibilityNo cancel feeOn-time63%
United AirlinesCheapest$331Average$402FlexibilityNo cancel feeOn-time69%

100% Free

Cheapflights is completely free to use, so you can start saving the moment you arrive.

Book with Flexibility

Our users can plan ahead with confidence and find flights with no change fees

Travel Smart

Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.