What is the cheapest airline that flies from Montana to Idaho?

Alaska Airlines, Delta, and United Airlines are the most popular carriers operating from Montana to Idaho

What airlines fly to Idaho?

Alaska Airlines, Delta and Southwest are the top three most popular airlines that fly to Idaho from Montana according to our data. Alaska Airlines is the first choice among our users, with 58% of people opting to fly with this airline when traveling to Idaho. Keep in mind that there are 3 different airlines that fly to Idaho on a routine basis, so you have a few additional options to choose from.

How many flights depart from Montana to Idaho on average per week?

As of February 2026, 4 flights take off from Montana and land in Idaho each week. The most common flight departure day for this route is Mon, with 50% of weekly flights taking off on this day.

How long is the flight from Montana to Idaho?

Flight times from Montana to Idaho vary, but if you’re flying out of Bozeman and flying into Boise (one of the most popular routes), then the duration is 1h 19m on average. Another popular route from Montana to Idaho is flying from Billings to Boise, which will take roughly 3h 57m. Keep in mind that layovers or delays could extend your travel time.

When did momondo last update prices for flights from Montana to Idaho?

Prices for flights from Montana to Idaho are refreshed on a daily basis.

How many operators does momondo search for flights from Montana to Idaho?

The number of operators available for flights from Montana to Idaho is 3 as of February 2026.

How old do you have to be to fly from Montana to Idaho?

Although the minimum age for a child to fly alone is five, airlines that offer an unaccompanied minor (UMNR) service may have their own age limits, which could be impacted by factors such as flight length, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Montana to Idaho.

What documentation or ID do you need to fly to Idaho?

The necessary travel and health documents for your Idaho trip may vary depending on your travel plans and individual circumstances. Generally, you should have various documents, such as a national ID card or driver's license and a passport that is valid for six months beyond your scheduled arrival date. We recommend seeking advice from your airline or a trusted third party, such as IATA.

$79 Cheap Flights from Montana to Idaho in 2026

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One-way

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Cheap round-trip flights

Enter your travel dates to find the best prices.

1:50 pm - 3:05 pm

BZN

BOI

1h 15mnonstop

2:18 pm - 3:24 pm

BOI

BZN

1h 06mnonstop

$147Alaska Airlines

Fri, Mar 20 - Mon, Mar 23

5:30 am - 9:45 am

BZN

BOI

4h 15m

1 stop

6:00 am - 10:48 am

BOI

BZN

4h 48m

1 stop

$167Delta

Thu, Mar 5 - Sun, Mar 8

1:48 pm - 3:07 pm

BZN

BOI

1h 19mnonstop

6:00 pm - 11:56 pm

BOI

BZN

5h 56m

1 stop

$172Alaska Airlines

Mon, Mar 2 - Wed, Mar 4

5:30 am - 9:45 am

BZN

BOI

4h 15m

1 stop

6:00 am - 10:48 am

BOI

BZN

4h 48m

1 stop

$177Delta

Thu, Mar 5 - Sun, Mar 8

1:48 pm - 3:07 pm

BZN

BOI

1h 19mnonstop

2:15 pm - 3:22 pm

BOI

BZN

1h 07mnonstop

$182Alaska Airlines

Mon, Mar 2 - Wed, Mar 4

5:20 am - 9:27 am

MSO

BOI

4h 07m

1 stop

8:00 am - 12:16 pm

BOI

MSO

4h 16m

1 stop

$187Delta

Tue, Mar 31 - Tue, Apr 7

1:48 pm - 3:07 pm

BZN

BOI

1h 19mnonstop

2:15 pm - 3:22 pm

BOI

BZN

1h 07mnonstop

$187Alaska Airlines

Sun, Mar 8 - Sun, Mar 15

5:45 am - 10:13 am

BZN

BOI

4h 28m

1 stop

6:00 am - 10:40 am

BOI

BZN

4h 40m

1 stop

$197Delta

Wed, Jul 29 - Mon, Aug 3

2:35 pm - 9:17 pm

BIL

GEG

7h 42m

1 stop

5:00 am - 1:23 pm

GEG

BIL

7h 23m

1 stop

$495United Airlines

Tue, Feb 24 - Sat, Feb 28

6:15 am - 12:55 pm

MSO

JAC

30h 40m

2 stops

1:38 pm - 9:57 pm

JAC

MSO

32h 19m

2 stops

$697United Airlines

Sat, Feb 21 - Wed, Feb 25

Delta flights from Montana to Idaho

Our best Delta deals on Montana to Idaho flight tickets

Delta

Mar 5

BZN5:30 amBozeman Gallatin Field

4h 15m

1 stop

BOI9:45 amBoise Air Term. Gowen Fld

Mar 8

BOI6:00 amBoise Air Term. Gowen Fld

4h 48m

1 stop

BZN10:48 amBozeman Gallatin Field

$167

Delta

Mar 5

BZN5:30 amBozeman Gallatin Field

4h 15m

1 stop

BOI9:45 amBoise Air Term. Gowen Fld

Mar 8

BOI6:00 amBoise Air Term. Gowen Fld

4h 48m

1 stop

BZN10:48 amBozeman Gallatin Field

$177

Delta

Mar 31

MSO5:20 amMissoula Johnson-Bell Field

4h 07m

1 stop

BOI9:27 amBoise Air Term. Gowen Fld

Apr 7

BOI8:00 amBoise Air Term. Gowen Fld

4h 16m

1 stop

MSO12:16 pmMissoula Johnson-Bell Field

$187

Southwest flights from Montana to Idaho

Our best Southwest deals on Montana to Idaho flight tickets

Southwest

Feb 24

BZN3:50 pmBozeman Gallatin Field

7h 20m

1 stop

BOI11:10 pmBoise Air Term. Gowen Fld

Feb 28

BOI4:00 pmBoise Air Term. Gowen Fld

6h 50m

1 stop

BZN10:50 pmBozeman Gallatin Field

$267

Southwest

Apr 21

BZN8:10 amBozeman Gallatin Field

8h 30m

2 stops

BOI4:40 pmBoise Air Term. Gowen Fld

Apr 28

BOI4:05 pmBoise Air Term. Gowen Fld

8h 10m

2 stops

BZN12:15 amBozeman Gallatin Field

$269

Southwest

Feb 24

BZN11:15 amBozeman Gallatin Field

11h 00m

2 stops

BOI10:15 pmBoise Air Term. Gowen Fld

Feb 28

BOI4:00 pmBoise Air Term. Gowen Fld

6h 50m

1 stop

BZN10:50 pmBozeman Gallatin Field

$272

Fly from

Fly to

Route

Depart

Return

Price

BozemanBoise

BZN - BOI

BZNBOI

Bozeman Gallatin Field

Fri 3/20

1:50 pm-3:05 pm

Nonstop1h 15m

Boise Air Term. Gowen Fld

Mon 3/23

2:18 pm-3:24 pm

Nonstop1h 06m

$147

BozemanBoise

BZN - BOI

BZNBOI

Bozeman Gallatin Field

Thu 3/5

5:30 am-9:45 am

1 stop4h 15m

Boise Air Term. Gowen Fld

Sun 3/8

6:00 am-10:48 am

1 stop4h 48m

$167

BozemanBoise

BZN - BOI

BZNBOI

Bozeman Gallatin Field

Mon 3/2

1:48 pm-3:07 pm

Nonstop1h 19m

Boise Air Term. Gowen Fld

Wed 3/4

6:00 pm-11:56 pm

1 stop5h 56m

$172

BozemanBoise

BZN - BOI

BZNBOI

Bozeman Gallatin Field

Thu 3/5

5:30 am-9:45 am

1 stop4h 15m

Boise Air Term. Gowen Fld

Sun 3/8

6:00 am-10:48 am

1 stop4h 48m

$177

BozemanBoise

BZN - BOI

BZNBOI

Bozeman Gallatin Field

Mon 3/2

1:48 pm-3:07 pm

Nonstop1h 19m

Boise Air Term. Gowen Fld

Wed 3/4

2:15 pm-3:22 pm

Nonstop1h 07m

$182

MissoulaBoise

MSO - BOI

MSOBOI

Missoula Johnson-Bell Field

Tue 3/31

5:20 am-9:27 am

1 stop4h 07m

Boise Air Term. Gowen Fld

Tue 4/7

8:00 am-12:16 pm

1 stop4h 16m

$187

BozemanBoise

BZN - BOI

BZNBOI

Bozeman Gallatin Field

Sun 3/8

1:48 pm-3:07 pm

Nonstop1h 19m

Boise Air Term. Gowen Fld

Sun 3/15

2:15 pm-3:22 pm

Nonstop1h 07m

$187

BozemanBoise

BZN - BOI

BZNBOI

Bozeman Gallatin Field

Wed 7/29

5:45 am-10:13 am

1 stop4h 28m

Boise Air Term. Gowen Fld

Mon 8/3

6:00 am-10:40 am

1 stop4h 40m

$197

BillingsSpokane

BIL - GEG

BILGEG

Billings Logan Intl

Tue 2/24

2:35 pm-9:17 pm

1 stop7h 42m

Spokane

Sat 2/28

5:00 am-1:23 pm

1 stop7h 23m

$495

MissoulaJackson

MSO - JAC

MSOJAC

Missoula Johnson-Bell Field

Sat 2/21

6:15 am-12:55 pm

2 stops30h 40m

Jackson Hole

Wed 2/25

1:38 pm-9:57 pm

2 stops32h 19m

$697

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first

How to get the cheapest flight ticket from Montana to Idaho

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

Prices

Airlines

Other information

What is the cheapest month to fly to Idaho?

In general, January is the cheapest month to fly from Montana to Idaho. Due to it being the ‘off-season’ during this time, you can expect flight prices to be around $137. If you don’t want to visit Idaho in January, then you should wait until December to fly from Montana, when ticket prices are also cheap, with an average price of $137.

What is the cheapest day to depart on your flight to Idaho?

Our data shows that Thursday is the least expensive day to fly to Idaho. Tickets to fly out on this day can be as low as $157. On the other hand, Sunday is the most expensive day to depart from Montana because it is more convenient for both business and leisure travelers. As a result, prices tend to be around $408.

What is the cheapest time of day to depart on your flight to Idaho?

According to our data, the cheapest time of day to fly to Idaho is at noon. momondo users have found flights departing from Montana to Idaho at noon for as low as $212. Keep in mind that these prices may fluctuate based on what airline you choose and the time of year you plan to travel. In the afternoon is when there is more demand to fly to Idaho, so prices are often more expensive at around $267 per ticket.

What is the cheapest Montana to Idaho flight route?

Fly from Bozeman Gallatin Field to Boise Air Term. Gowen Fld for the best Montana - Idaho flight prices

What cabin class options are available on Montana to Idaho flights?

There are 2 cabin classes available to choose from on Montana to Idaho flights. Cabin price and availability will vary by airline so perform a search above to find the right deals for you.

Can stopping save me money on Montana to Idaho flights?

No. A direct flight is the cheapest option for a flight between Montana to Idaho.

Cheap Montana to Idaho flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Montana to Idaho

Fastest flight time	1h 19m
Direct flights	Mon, Tue, Wed, Fri and Sat
Airports in Idaho	27 airports

The fastest flight from Montana to Idaho takes 1h 19m

Direct flights go from Montana to Idaho on Monday, Tuesday, Wednesday, Friday and Saturday. The only airline offering direct flights is Alaska Airlines.

There are 27 airports in Idaho. From Montana there are direct flights to Boise Air Term. Gowen Fld (BOI).

Search flight deals

When did momondo last update prices for flights from Montana to Idaho?
Prices for flights from Montana to Idaho are refreshed on a daily basis.
How many operators does momondo search for flights from Montana to Idaho?
The number of operators available for flights from Montana to Idaho is 3 as of February 2026.
How old do you have to be to fly from Montana to Idaho?
Although the minimum age for a child to fly alone is five, airlines that offer an unaccompanied minor (UMNR) service may have their own age limits, which could be impacted by factors such as flight length, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Montana to Idaho.
What documentation or ID do you need to fly to Idaho?
The necessary travel and health documents for your Idaho trip may vary depending on your travel plans and individual circumstances. Generally, you should have various documents, such as a national ID card or driver's license and a passport that is valid for six months beyond your scheduled arrival date. We recommend seeking advice from your airline or a trusted third party, such as IATA.
What is the most popular plane model from Montana to Idaho?
Based on momondo bookings for flights between Montana and Idaho, the leading plane model is Boeing 737 MAX 8, making up 28.95% of the total bookings. Other popular models include Airbus A319 with 23.68%, Boeing 737-800 Passenger/BBJ2 (winglets) with 18.42%, and Embraer 175 with 15.79%.

Best airlines flying from Montana to Idaho

Compare and see reviews for airlines that fly from Montana to Idaho with momondo

Airline	Rating	Free Cancellation	Price
Alaska Airlines	PriceFrom $109	Free Cancellation	Rating 8.0 11,874 reviews	Search Alaska Airlines flights
Delta	PriceFrom $126	Free Cancellation	Rating 7.9 8,180 reviews	Search Delta flights
Southwest	PriceFrom $158	Free Cancellation	Rating 8.0 4,280 reviews	Search Southwest flights

Why use momondo?

Why should I use momondo to find a flight deal from Montana to Idaho?

momondo collates all your flight options in one place and lets you filter them to find the perfect flight from Montana to Idaho. momondo saves you time and could save you money on your trip.

Can I find flights from Montana to Idaho with flexible booking policies on momondo?

Yes. momondo allows you to filter the results for Montana to Idaho flights to just show those with flexible booking policies.

How can momondo help me find flights from Montana to Idaho?

Once all potential Montana to Idaho flight options are in front of you, momondo lets you sort and filter flights based on preferences such as airline, price and flight times amongst many other options.

I’m not ready to book a flight from Montana to Idaho right now. Can momondo alert me if prices change?

Price alerts on flights to Idaho from Montana are quick and easy to set up on momondo. Simply perform a search and select the price alert feature. It is as simple as that.

An easier way to manage your Idaho trip

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Popular cities in Idaho

Flights to New Yorkfrom $52

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Flights to Chicagofrom $55

Flights to Orlandofrom $52

Flights to San Franciscofrom $58

Flights to Las Vegasfrom $46

Flights to Washington, D.C.from $25

Flights to Bostonfrom $65

Flights to Atlantafrom $49

Flights to Dallasfrom $54

Flights to Seattlefrom $66

Cheap flights from Montana to Idaho from $79

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Montana to Idaho departing on 4/21. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.

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Delta flights from Montana to Idaho

Our best Delta deals on Montana to Idaho flight tickets

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Our best Southwest deals on Montana to Idaho flight tickets

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See travel insights to Idaho from

How to get the cheapest flight ticket from Montana to Idaho

What is the cheapest month to fly to Idaho?

What is the cheapest day to depart on your flight to Idaho?

What is the cheapest time of day to depart on your flight to Idaho?

What is the cheapest Montana to Idaho flight route?

What cabin class options are available on Montana to Idaho flights?

Can stopping save me money on Montana to Idaho flights?

What is the cheapest airline that flies from Montana to Idaho?

What airlines fly to Idaho?

How many flights depart from Montana to Idaho on average per week?

How long is the flight from Montana to Idaho?

Cheap Montana to Idaho flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Montana to Idaho

Fastest flight time

Direct flights

Airports in Idaho

Best airlines flying from Montana to Idaho

Compare and see reviews for airlines that fly from Montana to Idaho with momondo

Why use momondo?

Why should I use momondo to find a flight deal from Montana to Idaho?

Can I find flights from Montana to Idaho with flexible booking policies on momondo?

How can momondo help me find flights from Montana to Idaho?

I’m not ready to book a flight from Montana to Idaho right now. Can momondo alert me if prices change?

An easier way to manage your Idaho trip

We make it super easy to schedule, organize and travel with friends or family. Trips is free — and available to use no matter where you book.

Get notified when prices go down

Daily price changes in your inbox - only with Price Alerts.

Find better results for your trip to Idaho

Popular cities in Idaho

Popular flights according to clicks in the last 7 days on momondo

Montana flight routes

According to popular flight searches on momondo this year

Idaho flight routes

According to popular flight searches on momondo this year

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