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$59+ 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 2/19. Fares are subject to change and may not be available on all flights or dates of travel.
BZN — BOI
Jan 26 — Feb 21
Sun 1/26
Sun 2/2
1 adult, Economy
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Cheap flight deals from Montana to Idaho

Discover tips and strategies to find the most affordable flight options for your journey from Montana (USMT) to Idaho (USID). 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

$117
(Delta)

One-way from

$59
(Delta)

Good round-trip deal

$116 or less

Good one-way deal

$189 or less
From Montana to Idaho
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One-way flight from Montana to Idaho
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Price to beat on a round-trip flight from Montana to Idaho.
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Price to beat on a one-way 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 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.
Mon 2/175:40 amBZN - BOI
1 stop4h 10mDelta
Sat 2/225:59 pmBOI - BZN
1 stop4h 57mDelta
Deal found 1/20$117
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.
Thu 2/204:53 pmBZN - BOI
Nonstop1h 10mAlaska Airlines
Mon 2/242:08 pmBOI - BZN
Nonstop1h 05mAlaska Airlines
Deal found 1/20$203
This Southwest 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 4/75:35 pmBZN - BOI
1 stop6h 30mSouthwest
Wed 4/94:20 pmBOI - BZN
1 stop7h 05mSouthwest
Deal found 1/19$217
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 2/251:30 pmHLN - BOI
1 stop3h 32mDelta
Wed 2/266:00 amBOI - HLN
1 stop6h 50mDelta
Deal found 1/21$227
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.
Fri 2/285:35 amBZN - GEG
1 stop5h 40mSouthwest
Sun 3/24:10 pmGEG - BZN
1 stop6h 15mSouthwest
Deal found 1/21$251
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.
Fri 2/286:38 pmMSO - BOI
1 stop4h 03mAlaska Airlines
Tue 3/49:40 amBOI - MSO
1 stop4h 00mAlaska Airlines
Deal found 1/19$265
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 2/146:21 pmMSO - BOI
1 stop5h 57mDelta
Mon 2/1711:25 amBOI - MSO
1 stop6h 13mDelta
Deal found 1/20$275
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.
Mon 2/242:36 pmMSO - GEG
1 stop3h 21mAlaska Airlines
Mon 2/247:35 pmGEG - MSO
1 stop3h 24mAlaska Airlines
Deal found 1/20$278
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 2/255:20 amBIL - BOI
1 stop4h 30mDelta
Wed 2/2611:25 amBOI - BIL
1 stop6h 30mDelta
Deal found 1/21$311
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.
Wed 2/195:54 amHLN - GEG
2 stops7h 51mDelta
Wed 2/261:25 pmGEG - HLN
2 stops8h 29mDelta
Deal found 1/20$314
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.
Tue 2/252:53 pmBZN - GEG
1 stop9h 51mAlaska Airlines
Thu 3/66:20 amGEG - BZN
1 stop7h 53mAlaska Airlines
Deal found 1/20$322
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 2/252:55 pmBIL - BOI
1 stop5h 58mAlaska Airlines
Wed 2/266:46 pmBOI - BIL
2 stops19h 28mAlaska Airlines
Deal found 1/21$328

Find flights from Montana to Idaho within your budget

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 21, 2025.

Fly from

Any airport

Fly to

Any airport

Route

Depart

Return

Price

BozemanBoise

BZN - BOI

BZNBOI

Bozeman Gallatin Field

Mon 2/17

5:40 am-9:50 am

1 stop4h 10m

Boise Air Term. Gowen Fld

Sat 2/22

5:59 pm-10:56 pm

1 stop4h 57m

$117

BozemanBoise

BZN - BOI

BZNBOI

Bozeman Gallatin Field

Thu 2/20

4:53 pm-6:03 pm

Nonstop1h 10m

Boise Air Term. Gowen Fld

Mon 2/24

2:08 pm-3:13 pm

Nonstop1h 05m

$203

BozemanBoise

BZN - BOI

BZNBOI

Bozeman Gallatin Field

Mon 4/7

5:35 pm-12:05 am

1 stop6h 30m

Boise Air Term. Gowen Fld

Wed 4/9

4:20 pm-11:25 pm

1 stop7h 05m

$217

HelenaBoise

HLN - BOI

HLNBOI

Helena

Tue 2/25

1:30 pm-5:02 pm

1 stop3h 32m

Boise Air Term. Gowen Fld

Wed 2/26

6:00 am-12:50 pm

1 stop6h 50m

$227

BozemanSpokane

BZN - GEG

BZNGEG

Bozeman Gallatin Field

Fri 2/28

5:35 am-10:15 am

1 stop5h 40m

Spokane

Sun 3/2

4:10 pm-11:25 pm

1 stop6h 15m

$251

MissoulaBoise

MSO - BOI

MSOBOI

Missoula Johnson-Bell Field

Fri 2/28

6:38 pm-10:41 pm

1 stop4h 03m

Boise Air Term. Gowen Fld

Tue 3/4

9:40 am-1:40 pm

1 stop4h 00m

$265

MissoulaBoise

MSO - BOI

MSOBOI

Missoula Johnson-Bell Field

Fri 2/14

6:21 pm-12:18 am

1 stop5h 57m

Boise Air Term. Gowen Fld

Mon 2/17

11:25 am-5:38 pm

1 stop6h 13m

$275

MissoulaSpokane

MSO - GEG

MSOGEG

Missoula Johnson-Bell Field

Mon 2/24

2:36 pm-4:57 pm

1 stop3h 21m

Spokane

Mon 2/24

7:35 pm-11:59 pm

1 stop3h 24m

$278

BillingsBoise

BIL - BOI

BILBOI

Billings Logan Intl

Tue 2/25

5:20 am-9:50 am

1 stop4h 30m

Boise Air Term. Gowen Fld

Wed 2/26

11:25 am-5:55 pm

1 stop6h 30m

$311

HelenaSpokane

HLN - GEG

HLNGEG

Helena

Wed 2/19

5:54 am-12:45 pm

2 stops7h 51m

Spokane

Wed 2/26

1:25 pm-10:54 pm

2 stops8h 29m

$314

Flights are sorted by cheapest round-trip flights first.

Deals found on 1/20

Showing 1-10 of 40 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.

Travel insights for flights from Montana to Idaho

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

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 $436). 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 21, 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.

Rainfall in Idaho by month

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

In terms of precipitation, rainfall in Idaho ranges from 0.2 - 1.6 inches per month. December is typically the wettest month, when rainfall can reach 1.6 in. August is typically the driest time to visit Idaho when rainfall is around 0.2 in.

Temperature in Idaho by month

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

If weather is an important factor for your trip to Idaho, 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 75.2 F. Travelers looking to avoid the cold should look outside of December, when temperatures are typically at their lowest (around 30.2 F).

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 21, 2025.
To help decide which airline to fly from Montana to Idaho, see what other customers have to say about United Airlines, Alaska Airlines and Delta. You can also see how each airline stacks up in terms of entertainment options, comfort, food, crew/service, and boarding process.
Southwest
8.1
Very good
4,662 reviews

Comfort

8.1

Food

7.2

Overall

8.1

Entertainment

7.7

Crew

8.7

Boarding

8.2

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

Comfort

8.1

Food

7.2

Overall

8.1

Entertainment

7.7

Crew

8.7

Boarding

8.2

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

Comfort

8.1

Food

7.2

Overall

8.1

Entertainment

7.7

Crew

8.7

Boarding

8.2

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

Comfort

8.1

Food

7.2

Overall

8.1

Entertainment

7.7

Crew

8.7

Boarding

8.2

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
8,985 reviews
Southwest
8.1
Very good
4,662 reviews

Comfort

8.1

Food

7.2

Overall

8.1

Entertainment

7.7

Crew

8.7

Boarding

8.2

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 Montana to Idaho. 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 Montana to Idaho 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 Southwest and Alaska Airlines, with prices starting from $114 and $137, 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 $436). 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 3 airlines flying from Montana to Idaho

Discover the top 3 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 21, 2025.
AirlineCheapestAverageFlexibilityOn-time
Alaska AirlinesCheapest$106Average$438FlexibilityNo cancel feeOn-time75%
DeltaCheapest$126Average$408FlexibilityNo cancel feeOn-timeN/A
United AirlinesCheapest$331Average$565FlexibilityNo cancel feeOn-time69%
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