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$84+ 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 7/11. Fares are subject to change and may not be available on all flights or dates of travel.
BOI — BZN
Jun 19 — Jun 261
Thu 6/19
Thu 6/26
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 June 14, 2025.

Round-trip from

$182
(Delta)

One-way from

$84
(Delta)

Popular in

July

Cheapest in

March

Average price

$313
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. 28% potential increase in price ($119 potential increase over avg. RT price).
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Cheapest flight prices on average. 6% potential price decrease ($20 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 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 June 14, 2025.

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.
Sat 9/134:00 pmBOI - BZN
1 stop8h 12mAlaska Airlines
Wed 9/1711:26 amBZN - BOI
1 stop5h 52mAlaska Airlines
Deal found 6/12$153
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 7/36:10 pmBOI - BZN
1 stop5h 00mDelta
Sun 7/65:30 amBZN - BOI
1 stop3h 59mDelta
Deal found 6/10$182
This Southwest 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 9/132:00 pmBOI - BZN
2 stops7h 30mSouthwest
Wed 9/172:05 pmBZN - BOI
2 stops8h 20mSouthwest
Deal found 6/12$248
This Alaska Airlines deal was found by Cheapflights users on 6/13. 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.
Tue 8/2610:00 amBOI - BIL
1 stop5h 03mAlaska Airlines
Tue 9/27:18 pmBIL - BOI
1 stop4h 41mAlaska Airlines
Deal found 6/13$250
This Delta deal was found by Cheapflights users on 6/13. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 8/206:00 pmBOI - BIL
1 stop4h 34mDelta
Tue 9/26:08 pmBIL - BOI
1 stop4h 52mDelta
Deal found 6/13$251
This Hawaiian Airlines deal was found by Cheapflights users on 6/14. 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.
Wed 9/174:35 pmGEG - FCA
1 stop6h 24mHawaiian Airlines
Fri 9/198:02 pmFCA - GEG
1 stop4h 57mHawaiian Airlines
Deal found 6/14$254
This Hawaiian 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 Hawaiian Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/168:00 amBOI - FCA
1 stop4h 27mHawaiian Airlines
Thu 9/186:39 amFCA - BOI
1 stop3h 56mHawaiian Airlines
Deal found 6/12$266
This Alaska Airlines deal was found by Cheapflights users on 6/13. 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.
Wed 8/134:50 pmBOI - MSO
1 stop7h 29mAlaska Airlines
Fri 8/156:36 pmMSO - BOI
1 stop4h 10mAlaska Airlines
Deal found 6/13$266
This Delta deal was found by Cheapflights users on 6/13. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 8/46:00 pmBOI - FCA
1 stop6h 25mDelta
Wed 8/135:20 amFCA - BOI
1 stop4h 25mDelta
Deal found 6/13$280
This Alaska Airlines deal was found by Cheapflights users on 6/14. 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/172:36 pmGEG - FCA
2 stops8h 23mAlaska Airlines
Fri 9/192:15 pmFCA - GEG
1 stop5h 35mAlaska Airlines
Deal found 6/14$302
This Mytrip 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 6/239:43 amBOI - FCA
1 stop26h 42mMultiple Airlines
Thu 6/2610:40 amFCA - BOI
1 stop22h 08mMultiple Airlines
Deal found 6/11$305
This Alaska Airlines deal was found by Cheapflights users on 6/13. 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.
Mon 8/45:43 pmBOI - FCA
1 stop6h 16mAlaska Airlines
Wed 8/138:00 pmFCA - BOI
2 stops12h 07mAlaska Airlines
Deal found 6/13$307

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 June 14, 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 7/3

6:10 pm-11:10 pm

1 stop5h 00m

Bozeman Gallatin Field

Sun 7/6

5:30 am-9:29 am

1 stop3h 59m

$182

BoiseBillings

BOI - BIL

BOIBIL

Boise Air Term. Gowen Fld

Tue 8/26

10:00 am-3:03 pm

1 stop5h 03m

Billings Logan Intl

Tue 9/2

7:18 pm-11:59 pm

1 stop4h 41m

$250

BoiseBillings

BOI - BIL

BOIBIL

Boise Air Term. Gowen Fld

Wed 8/20

6:00 pm-10:34 pm

1 stop4h 34m

Billings Logan Intl

Tue 9/2

6:08 pm-11:00 pm

1 stop4h 52m

$251

SpokaneKalispell

GEG - FCA

GEGFCA

Spokane

Wed 9/17

4:35 pm-11:59 pm

1 stop6h 24m

Kalispell Glacier Park

Fri 9/19

8:02 pm-11:59 pm

1 stop4h 57m

$254

BoiseKalispell

BOI - FCA

BOIFCA

Boise Air Term. Gowen Fld

Tue 9/16

8:00 am-12:27 pm

1 stop4h 27m

Kalispell Glacier Park

Thu 9/18

6:39 am-10:35 am

1 stop3h 56m

$266

BoiseMissoula

BOI - MSO

BOIMSO

Boise Air Term. Gowen Fld

Wed 8/13

4:50 pm-12:19 am

1 stop7h 29m

Missoula Johnson-Bell Field

Fri 8/15

6:36 pm-10:46 pm

1 stop4h 10m

$266

BoiseKalispell

BOI - FCA

BOIFCA

Boise Air Term. Gowen Fld

Mon 8/4

6:00 pm-12:25 am

1 stop6h 25m

Kalispell Glacier Park

Wed 8/13

5:20 am-9:45 am

1 stop4h 25m

$280

SpokaneKalispell

GEG - FCA

GEGFCA

Spokane

Wed 9/17

2:36 pm-11:59 pm

2 stops8h 23m

Kalispell Glacier Park

Fri 9/19

2:15 pm-6:50 pm

1 stop5h 35m

$302

BoiseKalispell

BOI - FCA

BOIFCA

Boise Air Term. Gowen Fld

Mon 6/23

9:43 am-12:25 pm

1 stop26h 42m

Kalispell Glacier Park

Thu 6/26

10:40 am-8:48 am

1 stop22h 08m

$305

BoiseKalispell

BOI - FCA

BOIFCA

Boise Air Term. Gowen Fld

Mon 8/4

5:43 pm-11:59 pm

1 stop6h 16m

Kalispell Glacier Park

Wed 8/13

8:00 pm-8:07 am

2 stops12h 07m

$307

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 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 $479). 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 June 14, 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 June 14, 2025.
See what other customers who have flown with Alaska Airlines, Southwest 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.
Alaska Airlines
8.0
Very good
10,000 reviews

Crew

8.5

Food

7.1

Boarding

8.1

Entertainment

7.1

Comfort

7.8

Overall

8.0

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

Crew

8.5

Food

7.1

Boarding

8.1

Entertainment

7.1

Comfort

7.8

Overall

8.0

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
4,283 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Crew

8.5

Food

7.1

Boarding

8.1

Entertainment

7.1

Comfort

7.8

Overall

8.0

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
7,951 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Crew

8.5

Food

7.1

Boarding

8.1

Entertainment

7.1

Comfort

7.8

Overall

8.0

Reviews

1 / 20
10.0
Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.
Hawaiian Airlines
7.8
Good
2,499 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Crew

8.5

Food

7.1

Boarding

8.1

Entertainment

7.1

Comfort

7.8

Overall

8.0

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
8,791 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Crew

8.5

Food

7.1

Boarding

8.1

Entertainment

7.1

Comfort

7.8

Overall

8.0

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 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?

    $84 is the cheapest one-way deal found within the past few days, from Delta. You may also be able to find cheap deals on Hawaiian Airlines and Allegiant Air, with prices starting from $119 and $130, 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 $479). 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 3 airlines flying from Idaho to Montana

Discover the top 3 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 June 14, 2025.
AirlineCheapestAverageFlexibilityOn-time
DeltaCheapest$136Average$363FlexibilityNo cancel feeOn-timeN/A
Alaska AirlinesCheapest$147Average$427FlexibilityNo cancel feeOn-time75%
SouthwestCheapest$161Average$446FlexibilityNo cancel feeOn-time63%

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