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Idaho

$76+ 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 9/9. Fares are subject to change and may not be available on all flights or dates of travel.
BZN — BOI
ago. 5 — ago. 121
mar. 8/5
mar. 8/12
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 julio 31, 2025.

Round-trip from

$117
(Delta)

One-way from

$76
(Delta)

Popular in

May

Cheapest in

January

Average price

$336
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. 16% potential increase in price ($48 potential increase over avg. RT price).
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Cheapest flight prices on average. 5% potential price decrease ($14 potential savings vs. average RT price).
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Average for round-trip flights in July 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 julio 31, 2025.

This Delta deal was found by Cheapflights users on 7/29. 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.
mar. 8/195:30 amBZN - BOI
1 stop4h 15mDelta
sáb. 8/236:00 pmBOI - BZN
1 stop5h 09mDelta
Deal found 7/29$117
This Hawaiian Airlines deal was found by Cheapflights users on 7/31. 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.
lun. 9/157:23 pmBZN - BOI
1 stop4h 45mHawaiian Airlines
sáb. 9/205:45 pmBOI - BZN
1 stop4h 53mHawaiian Airlines
Deal found 7/31$163
This Alaska Airlines deal was found by Cheapflights users on 7/30. 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.
vie. 9/268:00 amBZN - BOI
1 stop7h 00mAlaska Airlines
lun. 9/298:31 pmBOI - BZN
1 stop3h 41mAlaska Airlines
Deal found 7/30$176
This Southwest deal was found by Cheapflights users on 7/29. 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.
jue. 9/185:00 pmBZN - BOI
1 stop7h 05mSouthwest
dom. 9/215:25 amBOI - BZN
1 stop4h 25mSouthwest
Deal found 7/29$191
This Hawaiian Airlines deal was found by Cheapflights users on 7/28. 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 Hawaiian Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
sáb. 10/117:34 pmBZN - GEG
1 stop5h 53mHawaiian Airlines
mar. 10/148:45 amGEG - BZN
1 stop5h 36mHawaiian Airlines
Deal found 7/28$210
This Delta deal was found by Cheapflights users on 7/30. 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.
sáb. 10/45:25 amBIL - GEG
1 stop4h 29mDelta
mié. 10/84:50 pmGEG - BIL
1 stop4h 35mDelta
Deal found 7/30$239
This Delta deal was found by Cheapflights users on 7/31. 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.
sáb. 9/135:30 amBZN - GEG
2 stops8h 07mDelta
sáb. 9/205:00 amGEG - BZN
1 stop5h 15mDelta
Deal found 7/31$244
This Alaska Airlines deal was found by Cheapflights users on 7/29. 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.
sáb. 10/117:34 pmBZN - GEG
1 stop5h 53mAlaska Airlines
mar. 10/145:11 amGEG - BZN
2 stops7h 59mAlaska Airlines
Deal found 7/29$253
This Alaska Airlines deal was found by Cheapflights users on 7/30. 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.
sáb. 8/304:29 pmGTF - BOI
1 stop7h 30mAlaska Airlines
sáb. 9/68:00 amBOI - GTF
1 stop7h 49mAlaska Airlines
Deal found 7/30$269
This Delta deal was found by Cheapflights users on 7/29. 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.
mié. 8/205:20 amFCA - BOI
1 stop4h 25mDelta
sáb. 8/236:00 pmBOI - FCA
1 stop5h 10mDelta
Deal found 7/29$269
This Alaska Airlines deal was found by Cheapflights users on 7/30. 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.
mié. 8/204:14 pmMSO - BOI
1 stop7h 45mAlaska Airlines
lun. 8/258:46 pmBOI - MSO
1 stop15h 46mAlaska Airlines
Deal found 7/30$282
This Hawaiian Airlines deal was found by Cheapflights users on 7/30. 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.
lun. 10/67:15 pmBIL - GEG
1 stop6h 12mHawaiian Airlines
mié. 10/81:31 pmGEG - BIL
1 stop4h 04mHawaiian Airlines
Deal found 7/30$287

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 julio 31, 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

mar. 8/19

5:30 am-9:45 am

1 stop4h 15m

Boise Air Term. Gowen Fld

sáb. 8/23

6:00 pm-11:09 pm

1 stop5h 09m

$117

BozemanBoise

BZN - BOI

BZNBOI

Bozeman Gallatin Field

lun. 9/15

7:23 pm-12:08 am

1 stop4h 45m

Boise Air Term. Gowen Fld

sáb. 9/20

5:45 pm-10:38 pm

1 stop4h 53m

$163

BozemanBoise

BZN - BOI

BZNBOI

Bozeman Gallatin Field

vie. 9/26

8:00 am-3:00 pm

1 stop7h 00m

Boise Air Term. Gowen Fld

lun. 9/29

8:31 pm-12:12 am

1 stop3h 41m

$176

BozemanBoise

BZN - BOI

BZNBOI

Bozeman Gallatin Field

jue. 9/18

5:00 pm-12:05 am

1 stop7h 05m

Boise Air Term. Gowen Fld

dom. 9/21

5:25 am-9:50 am

1 stop4h 25m

$191

BozemanSpokane

BZN - GEG

BZNGEG

Bozeman Gallatin Field

sáb. 10/11

7:34 pm-12:27 am

1 stop5h 53m

Spokane

mar. 10/14

8:45 am-3:21 pm

1 stop5h 36m

$210

BillingsSpokane

BIL - GEG

BILGEG

Billings Logan Intl

sáb. 10/4

5:25 am-8:54 am

1 stop4h 29m

Spokane

mié. 10/8

4:50 pm-10:25 pm

1 stop4h 35m

$239

BozemanSpokane

BZN - GEG

BZNGEG

Bozeman Gallatin Field

sáb. 9/13

5:30 am-12:37 pm

2 stops8h 07m

Spokane

sáb. 9/20

5:00 am-11:15 am

1 stop5h 15m

$244

BozemanSpokane

BZN - GEG

BZNGEG

Bozeman Gallatin Field

sáb. 10/11

7:34 pm-12:27 am

1 stop5h 53m

Spokane

mar. 10/14

5:11 am-2:10 pm

2 stops7h 59m

$253

Great FallsBoise

GTF - BOI

GTFBOI

Great Falls

sáb. 8/30

4:29 pm-11:59 pm

1 stop7h 30m

Boise Air Term. Gowen Fld

sáb. 9/6

8:00 am-3:49 pm

1 stop7h 49m

$269

KalispellBoise

FCA - BOI

FCABOI

Kalispell Glacier Park

mié. 8/20

5:20 am-9:45 am

1 stop4h 25m

Boise Air Term. Gowen Fld

sáb. 8/23

6:00 pm-11:10 pm

1 stop5h 10m

$269

Flights are sorted by cheapest round-trip flights first.

Deals found on 7/29

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 $398). 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 julio 31, 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.

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 julio 31, 2025.
Read through reviews of airlines operating flights from Montana to Idaho, such as Alaska Airlines, Southwest, and Delta. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.
Alaska Airlines
8.0
Very good
10,000 reviews

Comfort

7.8

Crew

8.5

Food

7.1

Overall

8.0

Boarding

8.1

Entertainment

7.1

Reviews

1 / 20
10.0
Excellent

Jonathan,Jul 2025

SEA - BOS

Fantastic Check-in with easy baggage drop. While it took a while to find out which was the gate, the boarding was a dream, the stewards were simply incredible and the flight fantastic.
Alaska Airlines
8.0
Very good
10,000 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Comfort

7.8

Crew

8.5

Food

7.1

Overall

8.0

Boarding

8.1

Entertainment

7.1

Reviews

1 / 20
10.0
Excellent

Jonathan,Jul 2025

SEA - BOS

Fantastic Check-in with easy baggage drop. While it took a while to find out which was the gate, the boarding was a dream, the stewards were simply incredible and the flight fantastic.
Southwest
8.0
Very good
4,246 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Comfort

7.8

Crew

8.5

Food

7.1

Overall

8.0

Boarding

8.1

Entertainment

7.1

Reviews

1 / 20
10.0
Excellent

Jonathan,Jul 2025

SEA - BOS

Fantastic Check-in with easy baggage drop. While it took a while to find out which was the gate, the boarding was a dream, the stewards were simply incredible and the flight fantastic.
Delta
8.0
Very good
7,981 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Comfort

7.8

Crew

8.5

Food

7.1

Overall

8.0

Boarding

8.1

Entertainment

7.1

Reviews

1 / 20
10.0
Excellent

Jonathan,Jul 2025

SEA - BOS

Fantastic Check-in with easy baggage drop. While it took a while to find out which was the gate, the boarding was a dream, the stewards were simply incredible and the flight fantastic.
Hawaiian Airlines
7.8
Good
2,611 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Comfort

7.8

Crew

8.5

Food

7.1

Overall

8.0

Boarding

8.1

Entertainment

7.1

Reviews

1 / 20
10.0
Excellent

Jonathan,Jul 2025

SEA - BOS

Fantastic Check-in with easy baggage drop. While it took a while to find out which was the gate, the boarding was a dream, the stewards were simply incredible and the flight fantastic.
United Airlines
7.4
Good
8,900 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Comfort

7.8

Crew

8.5

Food

7.1

Overall

8.0

Boarding

8.1

Entertainment

7.1

Reviews

1 / 20
10.0
Excellent

Jonathan,Jul 2025

SEA - BOS

Fantastic Check-in with easy baggage drop. While it took a while to find out which was the gate, the boarding was a dream, the stewards were simply incredible and the flight fantastic.

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?

    $76 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 $104 and $138, 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 $398). 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 julio 31, 2025.
AirlineCheapestAverageFlexibilityOn-time
Alaska AirlinesCheapest$106Average$386FlexibilityNo cancel feeOn-time75%
DeltaCheapest$116Average$407FlexibilityNo cancel feeOn-timeN/A
SouthwestCheapest$158Average$357FlexibilityNo cancel feeOn-time63%
United AirlinesCheapest$321Average$468FlexibilityNo cancel feeOn-time69%

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