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$99+ 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 6/14. Fares are subject to change and may not be available on all flights or dates of travel.
BZN — BOI
May 5 — May 121
Mon 5/5
Mon 5/12
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 April 30, 2025.

Most accurate provider

FlightHub
3 stars

Most trusted provider

eDreams
3 stars

Round-trip from

$197
(Delta)

One-way from

$99
(Delta)

Popular in

June

Cheapest in

January

Average price

$209

Good round-trip deal

$353 or less

Good one-way deal

$174 or less
Provider with most accurate pricing for Bozeman Gallatin Field-Boise Air Term. Gowen Fld flight deals.
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Provider most trusted by Cheapflights users for Bozeman Gallatin Field-Boise Air Term. Gowen Fld flights.
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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. 30% potential increase in price ($113 potential increase over avg. RT price).
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Cheapest flight prices on average. 11% potential price decrease ($25 potential savings vs. average RT price).
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Average for round-trip flights in April 2025
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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 April 30, 2025.

This Delta deal was found by Cheapflights users on 4/29. 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 5/295:40 amBZN - BOI
1 stop4h 26mDelta
Thu 6/55:40 pmBOI - BZN
1 stop6h 24mDelta
Deal found 4/29$197
This Hawaiian Airlines deal was found by Cheapflights users on 4/29. 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 6/48:00 amBZN - GEG
1 stop3h 53mHawaiian Airlines
Sat 6/76:00 amGEG - BZN
1 stop3h 38mHawaiian Airlines
Deal found 4/29$241
This Southwest deal was found by Cheapflights users on 4/29. 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 6/47:00 amBZN - GEG
2 stops10h 05mSouthwest
Sat 6/72:40 pmGEG - BZN
1 stop6h 10mSouthwest
Deal found 4/29$247
This Delta deal was found by Cheapflights users on 4/28. 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 5/3011:45 amGTF - BOI
1 stop4h 57mDelta
Tue 6/312:50 pmBOI - GTF
1 stop4h 46mDelta
Deal found 4/28$263
This Delta deal was found by Cheapflights users on 4/29. 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 6/45:40 amBZN - GEG
2 stops8h 13mDelta
Sat 6/73:30 pmGEG - BZN
2 stops6h 42mDelta
Deal found 4/29$281
This Alaska Airlines deal was found by Cheapflights users on 4/29. 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 5/295:32 amBZN - BOI
2 stops10h 23mAlaska Airlines
Sat 5/315:39 pmBOI - BZN
1 stop6h 12mAlaska Airlines
Deal found 4/29$281
This Delta deal was found by Cheapflights users on 4/28. 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 5/2611:53 amFCA - BOI
1 stop4h 49mDelta
Mon 6/212:50 pmBOI - FCA
1 stop4h 35mDelta
Deal found 4/28$281
This Alaska Airlines deal was found by Cheapflights users on 4/28. 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 5/237:33 pmBZN - GEG
1 stop3h 52mAlaska Airlines
Sun 5/2510:45 amGEG - BZN
2 stops12h 36mAlaska Airlines
Deal found 4/28$289
This Southwest deal was found by Cheapflights users on 4/29. 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.
Thu 5/291:05 pmBZN - BOI
2 stops9h 50mSouthwest
Thu 6/55:25 pmBOI - BZN
1 stop7h 20mSouthwest
Deal found 4/29$292
This Hawaiian Airlines deal was found by Cheapflights users on 4/29. 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 6/47:24 pmBIL - GEG
1 stop5h 30mHawaiian Airlines
Sat 6/74:16 pmGEG - BIL
1 stop6h 43mHawaiian Airlines
Deal found 4/29$301
This Alaska Airlines deal was found by Cheapflights users on 4/28. 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 6/44:11 pmHLN - BOI
1 stop6h 31mAlaska Airlines
Mon 6/911:26 amBOI - HLN
1 stop4h 05mAlaska Airlines
Deal found 4/28$304
This Alaska Airlines deal was found by Cheapflights users on 4/29. 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 5/206:39 pmMSO - BOI
1 stop4h 03mAlaska Airlines
Fri 5/238:59 pmBOI - MSO
1 stop21h 00mAlaska Airlines
Deal found 4/29$310

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 April 30, 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 5/29

5:40 am-10:06 am

1 stop4h 26m

Boise Air Term. Gowen Fld

Thu 6/5

5:40 pm-12:04 am

1 stop6h 24m

$197

BozemanSpokane

BZN - GEG

BZNGEG

Bozeman Gallatin Field

Wed 6/4

8:00 am-10:53 am

1 stop3h 53m

Spokane

Sat 6/7

6:00 am-10:38 am

1 stop3h 38m

$241

BozemanSpokane

BZN - GEG

BZNGEG

Bozeman Gallatin Field

Wed 6/4

7:00 am-4:05 pm

2 stops10h 05m

Spokane

Sat 6/7

2:40 pm-9:50 pm

1 stop6h 10m

$247

Great FallsBoise

GTF - BOI

GTFBOI

Great Falls

Fri 5/30

11:45 am-4:42 pm

1 stop4h 57m

Boise Air Term. Gowen Fld

Tue 6/3

12:50 pm-5:36 pm

1 stop4h 46m

$263

BozemanBoise

BZN - BOI

BZNBOI

Bozeman Gallatin Field

Thu 5/29

5:32 am-3:55 pm

2 stops10h 23m

Boise Air Term. Gowen Fld

Sat 5/31

5:39 pm-11:51 pm

1 stop6h 12m

$281

BozemanSpokane

BZN - GEG

BZNGEG

Bozeman Gallatin Field

Wed 6/4

5:40 am-12:53 pm

2 stops8h 13m

Spokane

Sat 6/7

3:30 pm-11:12 pm

2 stops6h 42m

$281

KalispellBoise

FCA - BOI

FCABOI

Kalispell Glacier Park

Mon 5/26

11:53 am-4:42 pm

1 stop4h 49m

Boise Air Term. Gowen Fld

Mon 6/2

12:50 pm-5:25 pm

1 stop4h 35m

$281

BozemanSpokane

BZN - GEG

BZNGEG

Bozeman Gallatin Field

Fri 5/23

7:33 pm-10:25 pm

1 stop3h 52m

Spokane

Sun 5/25

10:45 am-12:21 am

2 stops12h 36m

$289

BozemanBoise

BZN - BOI

BZNBOI

Bozeman Gallatin Field

Thu 5/29

1:05 pm-10:55 pm

2 stops9h 50m

Boise Air Term. Gowen Fld

Thu 6/5

5:25 pm-12:45 am

1 stop7h 20m

$292

BillingsSpokane

BIL - GEG

BILGEG

Billings Logan Intl

Wed 6/4

7:24 pm-11:54 pm

1 stop5h 30m

Spokane

Sat 6/7

4:16 pm-11:59 pm

1 stop6h 43m

$301

Flights are sorted by cheapest round-trip flights first.

Deals found on 4/29

Showing 1-10 of 51 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 $406). 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 April 30, 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 April 30, 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
9,961 reviews

Comfort

7.9

Food

7.1

Crew

8.5

Overall

8.0

Entertainment

7.1

Boarding

8.2

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
9,961 reviews
Alaska Airlines
8.0
Very good
9,961 reviews

Comfort

7.9

Food

7.1

Crew

8.5

Overall

8.0

Entertainment

7.1

Boarding

8.2

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
4,295 reviews
Alaska Airlines
8.0
Very good
9,961 reviews

Comfort

7.9

Food

7.1

Crew

8.5

Overall

8.0

Entertainment

7.1

Boarding

8.2

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
7,929 reviews
Alaska Airlines
8.0
Very good
9,961 reviews

Comfort

7.9

Food

7.1

Crew

8.5

Overall

8.0

Entertainment

7.1

Boarding

8.2

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
2,405 reviews
Alaska Airlines
8.0
Very good
9,961 reviews

Comfort

7.9

Food

7.1

Crew

8.5

Overall

8.0

Entertainment

7.1

Boarding

8.2

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
8,696 reviews
Alaska Airlines
8.0
Very good
9,961 reviews

Comfort

7.9

Food

7.1

Crew

8.5

Overall

8.0

Entertainment

7.1

Boarding

8.2

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?

    $99 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 Allegiant Air, with prices starting from $119 and $125, 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 $406). 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 April 30, 2025.
AirlineCheapestAverageFlexibilityOn-time
Alaska AirlinesCheapest$106Average$393FlexibilityNo cancel feeOn-time75%
DeltaCheapest$116Average$386FlexibilityNo cancel feeOn-timeN/A
United AirlinesCheapest$321Average$656FlexibilityNo cancel feeOn-time69%

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