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Idaho

$83+ 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 7/16. Fares are subject to change and may not be available on all flights or dates of travel.
BZN — BOI
Jun 17 — Jun 241
Tue 6/17
Tue 6/24
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 June 12, 2025.

Round-trip from

$154
(Delta)

One-way from

$83
(Alaska Airlines)

Popular in

May

Cheapest in

January

Average price

$237
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. 15% potential increase in price ($42 potential increase over avg. RT price).
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Cheapest flight prices on average. 6% potential price decrease ($14 potential savings vs. average RT price).
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Average for round-trip flights in June 2025
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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 June 12, 2025.

This Delta deal was found by Cheapflights users on 6/10. 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 8/217:30 pmBZN - BOI
1 stop4h 29mDelta
Sun 8/246:00 amBOI - BZN
1 stop4h 49mDelta
Deal found 6/10$154
This Alaska Airlines deal was found by Cheapflights users on 6/12. 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 8/195:30 amBZN - BOI
1 stop3h 43mAlaska Airlines
Thu 8/217:00 amBOI - BZN
2 stops17h 12mAlaska Airlines
Deal found 6/12$234
This Alaska Airlines deal was found by Cheapflights users on 6/10. 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 10/137:18 pmBIL - GEG
1 stop5h 41mAlaska Airlines
Tue 10/145:05 amGEG - BIL
1 stop7h 14mAlaska Airlines
Deal found 6/10$286
This Alaska Airlines deal was found by Cheapflights users on 6/11. 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.
Tue 8/263:43 pmBIL - BOI
1 stop4h 04mAlaska Airlines
Thu 8/286:35 amBOI - BIL
1 stop8h 28mAlaska Airlines
Deal found 6/11$293
This Southwest deal was found by Cheapflights users on 6/11. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 7/97:10 pmBZN - BOI
1 stop4h 30mSouthwest
Thu 7/105:05 pmBOI - BZN
2 stops7h 40mSouthwest
Deal found 6/11$298
This Kiwi.com deal was found by Cheapflights users on 6/11. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 8/43:00 pmBZN - GEG
1 stop4h 50mHawaiian Airlines
Tue 8/127:00 amGEG - BZN
1 stop6h 06mHawaiian Airlines
Deal found 6/11$309
This Alaska Airlines deal was found by Cheapflights users on 6/10. 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 7/104:13 pmMSO - BOI
1 stop6h 33mAlaska Airlines
Tue 7/158:25 pmBOI - MSO
1 stop3h 29mAlaska Airlines
Deal found 6/10$316
This Delta deal was found by Cheapflights users on 6/10. 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 7/106:24 pmMSO - BOI
1 stop5h 45mDelta
Wed 7/166:00 pmBOI - MSO
1 stop6h 24mDelta
Deal found 6/10$317
This Delta deal was found by Cheapflights users on 6/11. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 8/45:30 amBZN - GEG
2 stops8h 03mDelta
Tue 8/126:10 amGEG - BZN
1 stop4h 06mDelta
Deal found 6/11$320
This Delta deal was found by Cheapflights users on 6/12. 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.
Sat 7/125:30 amFCA - BOI
1 stop3h 56mDelta
Sat 7/196:00 pmBOI - FCA
1 stop5h 25mDelta
Deal found 6/12$321
This Delta deal was found by Cheapflights users on 6/11. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 7/35:20 amBIL - BOI
1 stop4h 09mDelta
Tue 7/86:00 pmBOI - BIL
1 stop6h 07mDelta
Deal found 6/11$329
This Hawaiian Airlines deal was found by Cheapflights users on 6/10. 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 9/228:02 pmFCA - BOI
1 stop3h 57mHawaiian Airlines
Thu 9/256:35 amBOI - FCA
1 stop5h 52mHawaiian Airlines
Deal found 6/10$334

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 June 12, 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

Thu 8/21

7:30 pm-11:59 pm

1 stop4h 29m

Boise Air Term. Gowen Fld

Sun 8/24

6:00 am-10:49 am

1 stop4h 49m

$154

BozemanBoise

BZN - BOI

BZNBOI

Bozeman Gallatin Field

Tue 8/19

5:30 am-9:13 am

1 stop3h 43m

Boise Air Term. Gowen Fld

Thu 8/21

7:00 am-12:12 am

2 stops17h 12m

$234

BillingsSpokane

BIL - GEG

BILGEG

Billings Logan Intl

Mon 10/13

7:18 pm-11:59 pm

1 stop5h 41m

Spokane

Tue 10/14

5:05 am-1:19 pm

1 stop7h 14m

$286

BillingsBoise

BIL - BOI

BILBOI

Billings Logan Intl

Tue 8/26

3:43 pm-7:47 pm

1 stop4h 04m

Boise Air Term. Gowen Fld

Thu 8/28

6:35 am-3:03 pm

1 stop8h 28m

$293

BozemanBoise

BZN - BOI

BZNBOI

Bozeman Gallatin Field

Wed 7/9

7:10 pm-11:40 pm

1 stop4h 30m

Boise Air Term. Gowen Fld

Thu 7/10

5:05 pm-12:45 am

2 stops7h 40m

$298

BozemanSpokane

BZN - GEG

BZNGEG

Bozeman Gallatin Field

Mon 8/4

3:00 pm-6:50 pm

1 stop4h 50m

Spokane

Tue 8/12

7:00 am-2:06 pm

1 stop6h 06m

$309

MissoulaBoise

MSO - BOI

MSOBOI

Missoula Johnson-Bell Field

Thu 7/10

4:13 pm-10:46 pm

1 stop6h 33m

Boise Air Term. Gowen Fld

Tue 7/15

8:25 pm-11:54 pm

1 stop3h 29m

$316

MissoulaBoise

MSO - BOI

MSOBOI

Missoula Johnson-Bell Field

Thu 7/10

6:24 pm-12:09 am

1 stop5h 45m

Boise Air Term. Gowen Fld

Wed 7/16

6:00 pm-12:24 am

1 stop6h 24m

$317

BozemanSpokane

BZN - GEG

BZNGEG

Bozeman Gallatin Field

Mon 8/4

5:30 am-12:33 pm

2 stops8h 03m

Spokane

Tue 8/12

6:10 am-11:16 am

1 stop4h 06m

$320

KalispellBoise

FCA - BOI

FCABOI

Kalispell Glacier Park

Sat 7/12

5:30 am-9:26 am

1 stop3h 56m

Boise Air Term. Gowen Fld

Sat 7/19

6:00 pm-11:25 pm

1 stop5h 25m

$321

Flights are sorted by cheapest round-trip flights first.

Deals found on 6/11

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 $395). 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 June 12, 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 June 12, 2025.
To help decide which airline to fly from Montana to Idaho, see what other customers have to say about Alaska Airlines, Southwest and Delta. You can also see how each airline stacks up in terms of entertainment options, comfort, food, crew/service, and boarding process.
Alaska Airlines
8.0
Very good
10,000 reviews

Boarding

8.1

Food

7.1

Crew

8.5

Comfort

7.8

Overall

8.0

Entertainment

7.1

Reviews

1 / 20
10.0
Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.
Alaska Airlines
8.0
Very good
10,000 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Boarding

8.1

Food

7.1

Crew

8.5

Comfort

7.8

Overall

8.0

Entertainment

7.1

Reviews

1 / 20
10.0
Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.
Southwest
8.0
Very good
4,287 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Boarding

8.1

Food

7.1

Crew

8.5

Comfort

7.8

Overall

8.0

Entertainment

7.1

Reviews

1 / 20
10.0
Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.
Delta
8.0
Very good
7,950 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Boarding

8.1

Food

7.1

Crew

8.5

Comfort

7.8

Overall

8.0

Entertainment

7.1

Reviews

1 / 20
10.0
Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.
Hawaiian Airlines
7.9
Good
2,494 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Boarding

8.1

Food

7.1

Crew

8.5

Comfort

7.8

Overall

8.0

Entertainment

7.1

Reviews

1 / 20
10.0
Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.
United Airlines
7.4
Good
8,790 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Boarding

8.1

Food

7.1

Crew

8.5

Comfort

7.8

Overall

8.0

Entertainment

7.1

Reviews

1 / 20
10.0
Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.

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?

    $83 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 Delta and Hawaiian Airlines, with prices starting from $84 and $147, 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 $395). 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 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 June 12, 2025.
AirlineCheapestAverageFlexibilityOn-time
Alaska AirlinesCheapest$106Average$398FlexibilityNo cancel feeOn-time75%
DeltaCheapest$116Average$395FlexibilityNo cancel feeOn-timeN/A
SouthwestCheapest$181Average$277FlexibilityNo cancel feeOn-time63%
United AirlinesCheapest$321Average$468FlexibilityNo cancel feeOn-time69%

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