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$59+ 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 2/11. Fares are subject to change and may not be available on all flights or dates of travel.
BOI — BZN
Jan 26 — Feb 21
Sun 1/26
Sun 2/2
1 adult, Economy
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Cheap flight deals from Idaho to Montana

Discover tips and strategies to find the most affordable flight options for your journey from Idaho (USID) to Montana (USMT). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated January 21, 2025.

Round-trip from

$127
(Delta)

One-way from

$59
(Delta)

Good round-trip deal

$193 or less
From Idaho to Montana
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One-way flight from Idaho to Montana
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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 January 21, 2025.

This Delta deal was found by Cheapflights users on 1/20. 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 2/285:59 pmBOI - BZN
1 stop4h 57mDelta
Sat 3/15:40 amBZN - BOI
1 stop4h 10mDelta
Deal found 1/20$127
This Alaska Airlines deal was found by Cheapflights users on 1/20. 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 2/282:08 pmBOI - BZN
Nonstop1h 05mAlaska Airlines
Sat 3/14:53 pmBZN - BOI
Nonstop1h 10mAlaska Airlines
Deal found 1/20$178
This Delta deal was found by Cheapflights users on 1/21. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 2/115:59 pmBOI - MSO
1 stop6h 42mDelta
Fri 2/146:21 pmMSO - BOI
1 stop5h 57mDelta
Deal found 1/21$241
This Southwest deal was found by Cheapflights users on 1/21. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 4/125:00 amBOI - BZN
1 stop6h 35mSouthwest
Sat 4/123:20 pmBZN - BOI
1 stop7h 20mSouthwest
Deal found 1/21$261
This Southwest deal was found by Cheapflights users on 1/21. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 3/195:10 amGEG - BZN
1 stop4h 55mSouthwest
Sun 3/235:00 amBZN - GEG
1 stop5h 15mSouthwest
Deal found 1/21$269
This Alaska Airlines deal was found by Cheapflights users on 1/21. 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 4/129:40 amBOI - MSO
1 stop3h 59mAlaska Airlines
Sat 4/126:38 pmMSO - BOI
1 stop4h 03mAlaska Airlines
Deal found 1/21$275
This Delta deal was found by Cheapflights users on 1/20. 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 2/181:15 pmGEG - BZN
1 stop3h 50mDelta
Tue 2/255:40 amBZN - GEG
1 stop4h 36mDelta
Deal found 1/20$287
This Delta deal was found by Cheapflights users on 1/19. 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 2/206:00 amBOI - HLN
1 stop6h 50mDelta
Wed 2/265:54 amHLN - BOI
1 stop3h 56mDelta
Deal found 1/19$293
This Delta deal was found by Cheapflights users on 1/21. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 2/185:35 amGEG - BIL
1 stop4h 25mDelta
Tue 2/256:25 amBIL - GEG
1 stop7h 50mDelta
Deal found 1/21$317
This Alaska Airlines deal was found by Cheapflights users on 1/19. 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 9/242:45 pmBOI - BIL
1 stop7h 58mAlaska Airlines
Sat 9/277:40 amBIL - BOI
1 stop6h 05mAlaska Airlines
Deal found 1/19$318
This Delta deal was found by Cheapflights users on 1/20. 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.
Mon 7/77:59 pmBOI - BIL
1 stop4h 17mDelta
Fri 7/116:35 pmBIL - BOI
1 stop5h 37mDelta
Deal found 1/20$339
This Alaska Airlines deal was found by Cheapflights users on 1/21. 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 2/185:52 pmGEG - MSO
1 stop5h 07mAlaska Airlines
Tue 2/256:38 pmMSO - GEG
1 stop5h 10mAlaska Airlines
Deal found 1/21$345

Find flights from Idaho to Montana within your budget

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 January 21, 2025.

Fly from

Any airport

Fly to

Any airport

Route

Depart

Return

Price

BoiseBozeman

BOI - BZN

BOIBZN

Boise Air Term. Gowen Fld

Fri 3/14

2:08 pm-3:13 pm

Nonstop1h 05m

Bozeman Gallatin Field

Mon 3/17

4:53 pm-6:03 pm

Nonstop1h 10m

$163

BoiseBozeman

BOI - BZN

BOIBZN

Boise Air Term. Gowen Fld

Mon 3/3

5:59 pm-10:56 pm

1 stop4h 57m

Bozeman Gallatin Field

Thu 4/10

5:45 am-9:47 am

1 stop4h 02m

$167

BoiseMissoula

BOI - MSO

BOIMSO

Boise Air Term. Gowen Fld

Tue 2/11

5:59 pm-12:41 am

1 stop6h 42m

Missoula Johnson-Bell Field

Fri 2/14

6:21 pm-12:18 am

1 stop5h 57m

$241

BoiseBozeman

BOI - BZN

BOIBZN

Boise Air Term. Gowen Fld

Sat 4/12

5:00 am-11:35 am

1 stop6h 35m

Bozeman Gallatin Field

Sat 4/12

3:20 pm-10:40 pm

1 stop7h 20m

$261

SpokaneBozeman

GEG - BZN

GEGBZN

Spokane

Wed 3/19

5:10 am-11:05 am

1 stop4h 55m

Bozeman Gallatin Field

Sun 3/23

5:00 am-9:15 am

1 stop5h 15m

$269

BoiseMissoula

BOI - MSO

BOIMSO

Boise Air Term. Gowen Fld

Sat 4/12

9:40 am-1:39 pm

1 stop3h 59m

Missoula Johnson-Bell Field

Sat 4/12

6:38 pm-10:41 pm

1 stop4h 03m

$275

SpokaneBozeman

GEG - BZN

GEGBZN

Spokane

Tue 2/18

1:15 pm-6:05 pm

1 stop3h 50m

Bozeman Gallatin Field

Tue 2/25

5:40 am-9:16 am

1 stop4h 36m

$287

BoiseHelena

BOI - HLN

BOIHLN

Boise Air Term. Gowen Fld

Thu 2/20

6:00 am-12:50 pm

1 stop6h 50m

Helena

Wed 2/26

5:54 am-9:50 am

1 stop3h 56m

$293

BoiseBillings

BOI - BIL

BOIBIL

Boise Air Term. Gowen Fld

Wed 2/26

11:25 am-5:55 pm

1 stop6h 30m

Billings Logan Intl

Wed 3/5

6:35 pm-12:18 am

1 stop5h 43m

$311

SpokaneBillings

GEG - BIL

GEGBIL

Spokane

Tue 2/18

5:35 am-11:00 am

1 stop4h 25m

Billings Logan Intl

Tue 2/25

6:25 am-1:15 pm

1 stop7h 50m

$317

Flights are sorted by cheapest round-trip flights first.

Deals found on 1/21

Showing 1-10 of 40 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.

Travel insights for flights from Idaho to Montana

Get recent, data-driven insights about flights from Idaho to Montana including ideal travel times, pricing trends, and more.

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 June is currently the most expensive (average of $520). 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 January 21, 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.

Rainfall in Montana by month

Plan your trip to Montana by taking into account the average rainfall totals by month.

In terms of precipitation, rainfall in Montana ranges from 0.4 - 2.0 inches per month. May is typically the wettest month, when rainfall can reach 2.0 in. January is typically the driest time to visit Montana when rainfall is around 0.4 in.

Temperature in Montana by month

Plan your trip to Montana by taking into account the average temperature totals by month.

If weather is an important factor for your trip to Montana, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 64.4 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 15.8 F).

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 January 21, 2025.
See what other customers who have flown with Southwest, United Airlines and Delta from Idaho to Montana have to say. In addition to providing an overall rating, users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
Southwest
8.1
Very good
4,662 reviews

Crew

8.7

Food

7.2

Overall

8.1

Boarding

8.2

Comfort

8.1

Entertainment

7.7

Reviews

1 / 10

We BARELY made the connection and when we got onboard we were treated like disobedient children who should have arrived earlier because we had to ask other passengers to move so we could sit with our kids. The flight attendants on the first flight were nice but the second one, they were snippy and fairly rude.

Southwest
8.1
Very good
4,662 reviews
Southwest
8.1
Very good
4,662 reviews

Crew

8.7

Food

7.2

Overall

8.1

Boarding

8.2

Comfort

8.1

Entertainment

7.7

Reviews

1 / 10

We BARELY made the connection and when we got onboard we were treated like disobedient children who should have arrived earlier because we had to ask other passengers to move so we could sit with our kids. The flight attendants on the first flight were nice but the second one, they were snippy and fairly rude.

Alaska Airlines
8.0
Very good
9,706 reviews
Southwest
8.1
Very good
4,662 reviews

Crew

8.7

Food

7.2

Overall

8.1

Boarding

8.2

Comfort

8.1

Entertainment

7.7

Reviews

1 / 10

We BARELY made the connection and when we got onboard we were treated like disobedient children who should have arrived earlier because we had to ask other passengers to move so we could sit with our kids. The flight attendants on the first flight were nice but the second one, they were snippy and fairly rude.

Delta
8.0
Very good
8,521 reviews
Southwest
8.1
Very good
4,662 reviews

Crew

8.7

Food

7.2

Overall

8.1

Boarding

8.2

Comfort

8.1

Entertainment

7.7

Reviews

1 / 10

We BARELY made the connection and when we got onboard we were treated like disobedient children who should have arrived earlier because we had to ask other passengers to move so we could sit with our kids. The flight attendants on the first flight were nice but the second one, they were snippy and fairly rude.

United Airlines
7.4
Good
8,984 reviews
Southwest
8.1
Very good
4,662 reviews

Crew

8.7

Food

7.2

Overall

8.1

Boarding

8.2

Comfort

8.1

Entertainment

7.7

Reviews

1 / 10

We BARELY made the connection and when we got onboard we were treated like disobedient children who should have arrived earlier because we had to ask other passengers to move so we could sit with our kids. The flight attendants on the first flight were nice but the second one, they were snippy and fairly rude.

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.

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

    $59 is the cheapest one-way deal found within the past few days, from Delta. You may also be able to find cheap deals on Alaska Airlines and Southwest, with prices starting from $104 and $165, 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 June is currently the most expensive (average of $520). 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 Idaho to Montana

See prices for flight routes from nearby airports that may be better suited for you.
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Top 2 airlines flying from Idaho to Montana

Discover the top 2 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 January 21, 2025.
AirlineCheapestAverageFlexibilityOn-time
DeltaCheapest$176Average$420FlexibilityNo cancel feeOn-timeN/A
Alaska AirlinesCheapest$193Average$473FlexibilityNo cancel feeOn-time75%
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