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$89+ 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 2/25. Fares are subject to change and may not be available on all flights or dates of travel.
BOI — BZN
Feb 28 — Mar 71
Sat 2/28
Sat 3/7
1 adult, Economy
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Cheap 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 29, 2026.

This Alaska Airlines deal was found by Cheapflights users on 1/27. 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 4/92:18 pm
BOI
-
BZN
Nonstop1h 06m
Alaska Airlines
Wed 4/151:50 pm
BZN
-
BOI
Nonstop1h 15m
Alaska Airlines
Deal found 1/27$107
This Alaska Airlines deal was found by Cheapflights users on 1/28. 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 2/252:15 pm
BOI
-
BZN
Nonstop1h 07m
Alaska Airlines
Wed 3/41:48 pm
BZN
-
BOI
Nonstop1h 19m
Alaska Airlines
Deal found 1/28$137
This Alaska Airlines deal was found by Cheapflights users on 1/28. 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.
Mon 3/306:04 pm
BOI
-
BZN
1 stop5h 53m
Alaska Airlines
Wed 4/111:20 am
BZN
-
BOI
1 stop7h 04m
Alaska Airlines
Deal found 1/28$162
This Alaska Airlines deal was found by Cheapflights users on 1/27. 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 3/66:00 pm
BOI
-
BZN
1 stop5h 56m
Alaska Airlines
Mon 3/91:48 pm
BZN
-
BOI
Nonstop1h 19m
Alaska Airlines
Deal found 1/27$177
This Alaska Airlines deal was found by Cheapflights users on 1/28. 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.
Tue 3/36:28 am
BOI
-
MSO
1 stop5h 53m
Alaska Airlines
Wed 3/46:23 am
MSO
-
BOI
1 stop5h 17m
Alaska Airlines
Deal found 1/28$177
This Alaska Airlines deal was found by Cheapflights users on 1/28. 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.
Tue 3/311:54 am
BOI
-
HLN
1 stop4h 05m
Alaska Airlines
Wed 3/44:36 pm
HLN
-
BOI
1 stop6h 04m
Alaska Airlines
Deal found 1/28$177
This Alaska Airlines deal was found by Cheapflights users on 1/28. 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.
Mon 3/236:04 pm
BOI
-
BZN
1 stop5h 53m
Alaska Airlines
Wed 3/251:50 pm
BZN
-
BOI
Nonstop1h 15m
Alaska Airlines
Deal found 1/28$182
This Alaska Airlines deal was found by Cheapflights users on 1/28. 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.
Sat 2/2812:00 pm
GEG
-
GTF
1 stop4h 48m
Alaska Airlines
Wed 3/46:28 pm
GTF
-
GEG
1 stop6h 31m
Alaska Airlines
Deal found 1/28$186
This Alaska Airlines deal was found by Cheapflights users on 1/28. 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.
Tue 3/37:06 pm
GEG
-
MSO
1 stop3h 53m
Alaska Airlines
Wed 3/46:23 am
MSO
-
GEG
1 stop5h 43m
Alaska Airlines
Deal found 1/28$197
This Delta deal was found by Cheapflights users on 1/27. 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 2/173:45 pm
GEG
-
BZN
1 stop5h 40m
Delta
Wed 3/45:30 am
BZN
-
GEG
1 stop4h 39m
Delta
Deal found 1/27$197
This Alaska Airlines deal was found by Cheapflights users on 1/28. 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.
Tue 2/246:00 pm
BOI
-
BIL
1 stop5h 38m
Alaska Airlines
Sat 2/282:04 pm
BIL
-
BOI
1 stop7h 11m
Alaska Airlines
Deal found 1/28$207
This CheapOair deal was found by Cheapflights users on 1/27. 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 4/159:55 am
BOI
-
BIL
1 stop14h 03m
Alaska Airlines
Tue 4/217:56 am
BIL
-
BOI
1 stop7h 33m
Alaska Airlines
Deal found 1/27$217

Find flight deals from Idaho to Montana

Keep the following information in mind while searching for Idaho to Montana flight deals. Data was last updated January 29, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$107
(Alaska Airlines)

One-way from

$89
(Delta)

Popular in

September

Cheapest in

November

Average price

$146
Provider with most accurate pricing for Boise Air Term. Gowen Fld-Bozeman Gallatin Field flight deals.
Search Deals
Provider most trusted by Cheapflights users for Boise Air Term. Gowen Fld-Bozeman Gallatin Field flights.
Search Deals
From Idaho to Montana
Search Deals
One-way flight from Idaho to Montana
Search Deals
Highest demand for flights based on searches. 17% potential increase in price ($46 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 7% potential price decrease ($16 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in January 2026
Search Deals

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 January 29, 2026.
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

Wed 2/25

2:15 pm-3:22 pm

Nonstop1h 07m

Bozeman Gallatin Field

Wed 3/4

1:48 pm-3:07 pm

Nonstop1h 19m

$137

BoiseBozeman

BOI - BZN

BOIBZN

Boise Air Term. Gowen Fld

Thu 4/9

2:18 pm-3:24 pm

Nonstop1h 06m

Bozeman Gallatin Field

Wed 4/15

7:26 pm-11:56 pm

1 stop4h 30m

$152

BoiseBozeman

BOI - BZN

BOIBZN

Boise Air Term. Gowen Fld

Mon 3/30

6:04 pm-11:57 pm

1 stop5h 53m

Bozeman Gallatin Field

Wed 4/1

11:20 am-6:24 pm

1 stop7h 04m

$162

BoiseBozeman

BOI - BZN

BOIBZN

Boise Air Term. Gowen Fld

Fri 4/17

6:16 pm-12:09 am

1 stop5h 53m

Bozeman Gallatin Field

Sat 4/18

5:30 am-12:02 pm

1 stop6h 32m

$167

BoiseBozeman

BOI - BZN

BOIBZN

Boise Air Term. Gowen Fld

Fri 4/3

6:00 am-10:57 am

1 stop4h 57m

Bozeman Gallatin Field

Mon 4/6

5:20 am-9:27 am

1 stop4h 07m

$167

BoiseBozeman

BOI - BZN

BOIBZN

Boise Air Term. Gowen Fld

Thu 4/16

6:04 pm-11:57 pm

1 stop5h 53m

Bozeman Gallatin Field

Sat 4/18

7:26 pm-11:56 pm

1 stop4h 30m

$167

BoiseBozeman

BOI - BZN

BOIBZN

Boise Air Term. Gowen Fld

Fri 3/6

6:00 pm-11:56 pm

1 stop5h 56m

Bozeman Gallatin Field

Mon 3/9

1:48 pm-3:07 pm

Nonstop1h 19m

$177

BoiseMissoula

BOI - MSO

BOIMSO

Boise Air Term. Gowen Fld

Tue 3/3

6:28 am-12:21 pm

1 stop5h 53m

Missoula Johnson-Bell Field

Wed 3/4

6:23 am-11:40 am

1 stop5h 17m

$177

BoiseHelena

BOI - HLN

BOIHLN

Boise Air Term. Gowen Fld

Tue 3/3

11:54 am-3:59 pm

1 stop4h 05m

Helena

Wed 3/4

4:36 pm-10:40 pm

1 stop6h 04m

$177

SpokaneGreat Falls

GEG - GTF

GEGGTF

Spokane

Sat 2/28

12:00 pm-5:48 pm

1 stop4h 48m

Great Falls

Wed 3/4

6:28 pm-9:37 pm

1 stop4h 09m

$186

Flights are sorted by cheapest round-trip flights first.

Deals found on 1/28

Showing 1-10 of 52 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 $86). Flying from Idaho to Montana in May is currently the most expensive (average of $214). 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 29, 2026.

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.

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 29, 2026.
See what other customers who have flown with Alaska Airlines and Delta from Idaho to Montana have to say. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
Alaska Airlines
8.0
Very good
11,807 reviews

Overall

8.0

Food

7.1

Boarding

8.1

Comfort

7.8

Crew

8.5

Entertainment

7.0

Reviews

1 / 20
10.0
Excellent

Anonymous,Jan 2026

STS - LAX

Enjoyed staff assistance from ticking thru tsa , boarding and in the plane Couldn’t pick a seat except upgrading
Alaska Airlines
8.0
Very good
11,807 reviews
Alaska Airlines
8.0
Very good
11,807 reviews

Overall

8.0

Food

7.1

Boarding

8.1

Comfort

7.8

Crew

8.5

Entertainment

7.0

Reviews

1 / 20
10.0
Excellent

Anonymous,Jan 2026

STS - LAX

Enjoyed staff assistance from ticking thru tsa , boarding and in the plane Couldn’t pick a seat except upgrading
Delta
7.9
Good
8,127 reviews
Alaska Airlines
8.0
Very good
11,807 reviews

Overall

8.0

Food

7.1

Boarding

8.1

Comfort

7.8

Crew

8.5

Entertainment

7.0

Reviews

1 / 20
10.0
Excellent

Anonymous,Jan 2026

STS - LAX

Enjoyed staff assistance from ticking thru tsa , boarding and in the plane Couldn’t pick a seat except upgrading

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.

  • How long is the flight from Idaho to Montana?

    For as low as $137, Alaska Airlines can have you in Montana from Idaho in 1h 07m. There are 292 mi between Idaho and Montana. This flight may include one or multiple stops.

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

    $58 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 United Airlines, with prices starting from $78 and $179, 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 $86). Flying from Idaho to Montana in May is currently the most expensive (average of $214). 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 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 29, 2026.
AirlineCheapestAverageFlexibilityOn-time
DeltaCheapest$88Average$305FlexibilityNo cancel feeOn-timeN/A
Alaska AirlinesCheapest$99Average$356FlexibilityNo cancel feeOn-time75%

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