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$57+ Cheap flights from Idaho to Montana

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 11/5. Fares are subject to change and may not be available on all flights or dates of travel.
BOI — BZN
Oct 15 — Oct 221
Wed 10/15
Wed 10/22
1 adult, Economy
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Cheap flight deals from Idaho to Montana

Keep the following information in mind while searching for Idaho to Montana flight deals. Data was last updated September 15, 2025.

Round-trip from

$143
(KAYAK)

One-way from

$57
(Southwest)

Popular in

September

Cheapest in

March

Average price

$387

Good round-trip deal

$178 or less
From Idaho to Montana
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One-way flight from Idaho to Montana
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Highest demand for flights based on searches. 7% potential increase in price ($20 potential increase over avg. RT price).
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Cheapest flight prices on average. 4% potential price decrease ($12 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 Idaho to Montana.
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Find flight deals from Idaho to Montana

Cheapest flights from Idaho to Montana
Explore the most affordable flight options available from Idaho to Montana. Find the lowest fares from popular airlines and budget airlines, with prices last updated on September 15, 2025.

This KAYAK deal was found by Cheapflights users on 9/13. 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 KAYAK is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/232:15 pmBOI - BZN
Nonstop1h 06mAlaska Airlines
Sun 10/261:42 pmBZN - BOI
Nonstop1h 15mAlaska Airlines
Deal found 9/13$143
This Southwest deal was found by Cheapflights users on 9/14. 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.
Wed 11/195:15 amBOI - BZN
1 stop4h 40mSouthwest
Sat 11/226:45 pmBZN - BOI
1 stop6h 15mSouthwest
Deal found 9/14$147
This Hawaiian Airlines deal was found by Cheapflights users on 9/14. 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 Hawaiian Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/172:15 pmBOI - BZN
Nonstop1h 06mHawaiian Airlines
Sun 10/191:42 pmBZN - BOI
Nonstop1h 15mHawaiian Airlines
Deal found 9/14$157
This Alaska Airlines deal was found by Cheapflights users on 9/13. 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 11/146:05 pmBOI - BZN
1 stop4h 34mAlaska Airlines
Mon 11/173:02 pmBZN - BOI
1 stop7h 18mAlaska Airlines
Deal found 9/13$166
This Delta deal was found by Cheapflights users on 9/14. 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.
Thu 10/236:00 amBOI - BZN
1 stop4h 44mDelta
Sun 10/265:35 amBZN - BOI
1 stop4h 42mDelta
Deal found 9/14$167
This Delta deal was found by Cheapflights users on 9/14. 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 10/176:00 amBOI - BZN
1 stop4h 44mDelta
Sun 10/195:35 amBZN - BOI
1 stop4h 42mDelta
Deal found 9/14$177
This Hawaiian Airlines deal was found by Cheapflights users on 9/15. 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 Hawaiian Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 12/46:00 pmBOI - BZN
1 stop5h 17mHawaiian Airlines
Sat 12/61:44 pmBZN - BOI
Nonstop1h 15mHawaiian Airlines
Deal found 9/15$187
This Hawaiian Airlines deal was found by Cheapflights users on 9/14. 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 Hawaiian Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/318:50 amBOI - BZN
1 stop5h 18mHawaiian Airlines
Sun 11/21:42 pmBZN - BOI
Nonstop1h 15mHawaiian Airlines
Deal found 9/14$197
This Alaska Airlines deal was found by Cheapflights users on 9/13. 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.
Sat 10/115:38 pmBOI - BZN
1 stop4h 59mAlaska Airlines
Sat 10/187:34 pmBZN - BOI
2 stops11h 46mAlaska Airlines
Deal found 9/13$205
This Delta deal was found by Cheapflights users on 9/14. 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 10/176:00 amBOI - BZN
1 stop4h 44mDelta
Mon 10/206:20 pmBZN - BOI
1 stop5h 39mDelta
Deal found 9/14$207
This Hawaiian Airlines deal was found by Cheapflights users on 9/13. 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 Hawaiian Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 10/65:38 pmBOI - BZN
1 stop4h 59mHawaiian Airlines
Thu 10/91:42 pmBZN - BOI
Nonstop1h 15mHawaiian Airlines
Deal found 9/13$212
This Southwest deal was found by Cheapflights users on 9/15. 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.
Mon 10/272:15 pmGEG - BZN
1 stop7h 55mSouthwest
Tue 11/44:05 pmBZN - GEG
1 stop7h 20mSouthwest
Deal found 9/15$224

Cheapflights Fare Finder

 
Customize your flight search to find flights from Idaho to Montana 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 15, 2025.
Use the filters below to find and compare flights from Idaho to Montana that are best for you.

Fly from

Idaho

Fly to

Montana

Route

Depart

Return

Price

BoiseBozeman

BOI - BZN

BOIBZN

Boise Air Term. Gowen Fld

Thu 10/23

2:15 pm-3:21 pm

Nonstop1h 06m

Bozeman Gallatin Field

Sun 10/26

1:42 pm-2:57 pm

Nonstop1h 15m

$143

BoiseBozeman

BOI - BZN

BOIBZN

Boise Air Term. Gowen Fld

Wed 11/19

5:15 am-9:55 am

1 stop4h 40m

Bozeman Gallatin Field

Sat 11/22

6:45 pm-1:00 am

1 stop6h 15m

$147

BoiseBozeman

BOI - BZN

BOIBZN

Boise Air Term. Gowen Fld

Fri 11/14

2:16 pm-3:22 pm

Nonstop1h 06m

Bozeman Gallatin Field

Mon 11/17

11:16 am-4:17 pm

1 stop5h 01m

$157

BoiseBozeman

BOI - BZN

BOIBZN

Boise Air Term. Gowen Fld

Sat 10/11

6:00 am-10:44 am

1 stop4h 44m

Bozeman Gallatin Field

Sat 10/18

5:35 am-10:17 am

1 stop4h 42m

$157

BoiseBozeman

BOI - BZN

BOIBZN

Boise Air Term. Gowen Fld

Fri 10/17

2:15 pm-3:21 pm

Nonstop1h 06m

Bozeman Gallatin Field

Sun 10/19

1:42 pm-2:57 pm

Nonstop1h 15m

$157

BoiseBozeman

BOI - BZN

BOIBZN

Boise Air Term. Gowen Fld

Fri 11/14

2:16 pm-3:22 pm

Nonstop1h 06m

Bozeman Gallatin Field

Mon 11/17

1:42 pm-2:57 pm

Nonstop1h 15m

$157

BoiseBozeman

BOI - BZN

BOIBZN

Boise Air Term. Gowen Fld

Fri 10/17

2:15 pm-3:21 pm

Nonstop1h 06m

Bozeman Gallatin Field

Sun 10/19

1:42 pm-2:57 pm

Nonstop1h 15m

$157

BoiseBozeman

BOI - BZN

BOIBZN

Boise Air Term. Gowen Fld

Fri 10/31

2:16 pm-3:22 pm

Nonstop1h 06m

Bozeman Gallatin Field

Sun 11/2

1:42 pm-2:57 pm

Nonstop1h 15m

$157

BoiseBozeman

BOI - BZN

BOIBZN

Boise Air Term. Gowen Fld

Fri 10/24

2:15 pm-3:21 pm

Nonstop1h 06m

Bozeman Gallatin Field

Mon 10/27

1:42 pm-2:57 pm

Nonstop1h 15m

$157

SpokaneBozeman

GEG - BZN

GEGBZN

Spokane

Mon 10/27

2:15 pm-11:10 pm

1 stop7h 55m

Bozeman Gallatin Field

Tue 11/4

4:05 pm-10:25 pm

1 stop7h 20m

$224

Flights are sorted by cheapest round-trip flights first.

Deals found on 9/13

Showing 1-10 of 60 results
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Best time to book a flight from Idaho to Montana

Have a flexible travel schedule? Discover the best time to fly to Montana from Idaho 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 Idaho to Montana

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

Currently, October is the cheapest month in which you can book a flight from Idaho to Montana (average of $371). Flying from Idaho to Montana in May is currently the most expensive (average of $476). 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 ID to MT?

Find hourly flight availability from Idaho to Montana. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated September 15, 2025.

Regardless of the time of day you decide to fly, the ticket price will remain around the same. Book flights from Idaho to Montana as you normally would.

Reviews of airlines servicing Montana

Get insights into the airlines that provide service to Montana. 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 Montana. Reviews last updated September 15, 2025.
See what other customers who have flown with Alaska Airlines, Southwest, and Delta from Idaho to Montana have to say. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
Alaska Airlines
8.0
Very good
10,000 reviews

Entertainment

7.0

Boarding

8.1

Crew

8.5

Food

7.1

Overall

8.0

Comfort

7.8

Reviews

1 / 20
6.0
Good

Hannah,Aug 2025

SFO - SAN

Ticket said TSA pre check, but then the TSA agent said that Alaska Airlines has not actually entered the pre check information for the ticket, so I had to use regular security. During boarding, I have a disability and need to board early. The Alaska Airlines employee announced disability boarding, but then immediately announced 2 other groups to board, so I still had to fight the crowds. On the plane, the stewardess was brusk and rude. Seats were very uncomfortable, especially on lower back.
Alaska Airlines
8.0
Very good
10,000 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Entertainment

7.0

Boarding

8.1

Crew

8.5

Food

7.1

Overall

8.0

Comfort

7.8

Reviews

1 / 20
6.0
Good

Hannah,Aug 2025

SFO - SAN

Ticket said TSA pre check, but then the TSA agent said that Alaska Airlines has not actually entered the pre check information for the ticket, so I had to use regular security. During boarding, I have a disability and need to board early. The Alaska Airlines employee announced disability boarding, but then immediately announced 2 other groups to board, so I still had to fight the crowds. On the plane, the stewardess was brusk and rude. Seats were very uncomfortable, especially on lower back.
Southwest
8.0
Very good
4,242 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Entertainment

7.0

Boarding

8.1

Crew

8.5

Food

7.1

Overall

8.0

Comfort

7.8

Reviews

1 / 20
6.0
Good

Hannah,Aug 2025

SFO - SAN

Ticket said TSA pre check, but then the TSA agent said that Alaska Airlines has not actually entered the pre check information for the ticket, so I had to use regular security. During boarding, I have a disability and need to board early. The Alaska Airlines employee announced disability boarding, but then immediately announced 2 other groups to board, so I still had to fight the crowds. On the plane, the stewardess was brusk and rude. Seats were very uncomfortable, especially on lower back.
Delta
8.0
Very good
7,954 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Entertainment

7.0

Boarding

8.1

Crew

8.5

Food

7.1

Overall

8.0

Comfort

7.8

Reviews

1 / 20
6.0
Good

Hannah,Aug 2025

SFO - SAN

Ticket said TSA pre check, but then the TSA agent said that Alaska Airlines has not actually entered the pre check information for the ticket, so I had to use regular security. During boarding, I have a disability and need to board early. The Alaska Airlines employee announced disability boarding, but then immediately announced 2 other groups to board, so I still had to fight the crowds. On the plane, the stewardess was brusk and rude. Seats were very uncomfortable, especially on lower back.
United Airlines
7.4
Good
8,929 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Entertainment

7.0

Boarding

8.1

Crew

8.5

Food

7.1

Overall

8.0

Comfort

7.8

Reviews

1 / 20
6.0
Good

Hannah,Aug 2025

SFO - SAN

Ticket said TSA pre check, but then the TSA agent said that Alaska Airlines has not actually entered the pre check information for the ticket, so I had to use regular security. During boarding, I have a disability and need to board early. The Alaska Airlines employee announced disability boarding, but then immediately announced 2 other groups to board, so I still had to fight the crowds. On the plane, the stewardess was brusk and rude. Seats were very uncomfortable, especially on lower back.

Related info for your journey

Find useful and relevant information for your journey from Idaho to Montana. 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 Idaho to Montana?

    For as low as $143, Alaska Airlines can have you in Montana from Idaho in 1h 06m. There are 292 mi between Idaho and Montana. This flight may include one or multiple stops.

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

    $57 is the cheapest one-way deal found within the past few days, from Southwest. You may also be able to find cheap deals on Alaska Airlines and Hawaiian Airlines, with prices starting from $78 and $88, respectively.

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

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

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

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

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

    Yes. Cheapflights offers flight deals from Idaho to Montana 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 Idaho to Montana?

    Currently, October is the cheapest month in which you can book a flight from Idaho to Montana (average of $371). Flying from Idaho to Montana in May is currently the most expensive (average of $476). 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 Idaho to Montana

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

Discover the top 4 airlines that operate flights from Idaho to Montana. 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 15, 2025.
AirlineCheapestAverageFlexibilityOn-time
DeltaCheapest$108Average$370FlexibilityNo cancel feeOn-timeN/A
Alaska AirlinesCheapest$137Average$365FlexibilityNo cancel feeOn-time75%
SouthwestCheapest$161Average$446FlexibilityNo cancel feeOn-time63%
United AirlinesCheapest$290Average$613FlexibilityNo cancel feeOn-time69%

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