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 52% of people opting to fly with this airline when traveling to Idaho. Keep in mind that there are 4 different airlines that fly to Idaho on a routine basis, so you have a few additional options to choose from.

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

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

How long is the flight from Montana to Idaho?

Flight times from Montana to Idaho vary, but if you’re flying out of Missoula and flying into Boise (one of the most popular routes), then the duration is 3h 38m on average. Another popular route from Montana to Idaho is flying from Great Falls to Boise, which will take roughly 3h 49m. Keep in mind that layovers or delays could extend your travel time.

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

As of March 2026, 12 flights take off from Montana and land in Idaho each week. The most common flight departure day for this route is Mon, with 17% of weekly flights taking off on this day.

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

As of March 2026, 1 flights take off from Montana and land in Idaho each day. The most common flight departure time for this route is 1:00PM, with 100% of daily flights taking off in the afternoon.

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 4 as of March 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.

$96 Cheap Flights from Montana to Idaho in 2026

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Round-trip

One-way

Last minute

Direct

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

$177Alaska Airlines

Fri, Apr 17 - Tue, Apr 21

3:49 pm - 11:02 pm

BZN

BOI

7h 13m

1 stop

7:20 pm - 11:58 pm

BOI

BZN

4h 38m

1 stop

$197Alaska Airlines

Fri, Apr 24 - Mon, Apr 27

4:20 pm - 11:30 pm

BZN

BOI

7h 10m

1 stop

4:05 pm - 12:15 am

BOI

BZN

8h 10m

2 stops

$202Southwest

Fri, Apr 17 - Tue, Apr 21

1:50 pm - 3:05 pm

BZN

BOI

1h 15mnonstop

6:00 am - 10:40 am

BOI

BZN

4h 40m

1 stop

$207Alaska Airlines

Fri, Apr 17 - Mon, Apr 20

4:30 pm - 10:55 pm

BZN

BOI

6h 25m

1 stop

7:40 pm - 1:10 am

BOI

BZN

5h 30m

1 stop

$218Southwest

Thu, Jun 4 - Fri, Jun 5

5:35 am - 11:56 am

BZN

BOI

6h 21m

1 stop

6:41 pm - 11:59 pm

BOI

BZN

5h 18m

1 stop

$227Delta

Thu, May 28 - Sun, May 31

6:18 pm - 9:56 pm

MSO

BOI

3h 38m

1 stop

6:16 pm - 11:11 pm

BOI

MSO

4h 55m

1 stop

$285Delta

Sat, Apr 25 - Sat, May 2

7:00 am - 12:40 pm

BIL

GEG

6h 40m

1 stop

1:41 pm - 8:57 pm

GEG

BIL

6h 16m

1 stop

$339United Airlines

Wed, Apr 29 - Sat, May 2

5:51 pm - 10:35 pm

BIL

BOI

4h 44m

1 stop

5:00 am - 9:40 am

BOI

BIL

4h 40m

1 stop

$355United Airlines

Fri, Apr 17 - Sun, Apr 19

11:48 am - 10:55 am

MSO

GEG

24h 07m

1 stop

9:19 pm - 8:04 pm

GEG

MSO

21h 45m

1 stop

$414Allegiant Air

Sun, Apr 12 - Thu, Apr 16

Alaska Airlines flights from Montana to Idaho

Our best Alaska Airlines deals on Montana to Idaho flight tickets

Alaska Airlines

Apr 17

BZN1:50 pmBozeman Gallatin Field

1h 15m

BOI3:05 pmBoise Air Term. Gowen Fld

Apr 21

BOI2:18 pmBoise Air Term. Gowen Fld

1h 06m

BZN3:24 pmBozeman Gallatin Field

$177

Alaska Airlines

Apr 24

BZN3:49 pmBozeman Gallatin Field

7h 13m

1 stop

BOI11:02 pmBoise Air Term. Gowen Fld

Apr 27

BOI7:20 pmBoise Air Term. Gowen Fld

4h 38m

1 stop

BZN11:58 pmBozeman Gallatin Field

$197

Alaska Airlines

Apr 17

BZN1:50 pmBozeman Gallatin Field

1h 15m

BOI3:05 pmBoise Air Term. Gowen Fld

Apr 20

BOI6:00 amBoise Air Term. Gowen Fld

4h 40m

1 stop

BZN10:40 amBozeman Gallatin Field

$207

Southwest flights from Montana to Idaho

Our best Southwest deals on Montana to Idaho flight tickets

Southwest

Apr 17

BZN4:20 pmBozeman Gallatin Field

7h 10m

1 stop

BOI11:30 pmBoise Air Term. Gowen Fld

Apr 21

BOI4:05 pmBoise Air Term. Gowen Fld

8h 10m

2 stops

BZN12:15 amBozeman Gallatin Field

$202

Southwest

Jun 4

BZN4:30 pmBozeman Gallatin Field

6h 25m

1 stop

BOI10:55 pmBoise Air Term. Gowen Fld

Jun 5

BOI7:40 pmBoise Air Term. Gowen Fld

5h 30m

1 stop

BZN1:10 amBozeman Gallatin Field

$218

Southwest

Jun 4

BZN4:30 pmBozeman Gallatin Field

8h 35m

2 stops

BOI1:05 amBoise Air Term. Gowen Fld

Jun 5

BOI7:40 pmBoise Air Term. Gowen Fld

5h 30m

1 stop

BZN1:10 amBozeman Gallatin Field

$223

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

Quickest round-trip

BozemanBoise

BZN - BOI

BZNBOI

Bozeman Gallatin Field

Fri 4/17

1:50 pm-3:05 pm

Nonstop1h 15m

Boise Air Term. Gowen Fld

Tue 4/21

2:18 pm-3:24 pm

Nonstop1h 06m

$177

BozemanBoise

BZN - BOI

BZNBOI

Bozeman Gallatin Field

Fri 4/24

3:49 pm-11:02 pm

1 stop7h 13m

Boise Air Term. Gowen Fld

Mon 4/27

7:20 pm-11:58 pm

1 stop4h 38m

$197

BozemanBoise

BZN - BOI

BZNBOI

Bozeman Gallatin Field

Fri 4/17

4:20 pm-11:30 pm

1 stop7h 10m

Boise Air Term. Gowen Fld

Tue 4/21

4:05 pm-12:15 am

2 stops8h 10m

$202

BozemanBoise

BZN - BOI

BZNBOI

Bozeman Gallatin Field

Fri 4/17

1:50 pm-3:05 pm

Nonstop1h 15m

Boise Air Term. Gowen Fld

Mon 4/20

6:00 am-10:40 am

1 stop4h 40m

$207

BozemanBoise

BZN - BOI

BZNBOI

Bozeman Gallatin Field

Thu 6/4

4:30 pm-10:55 pm

1 stop6h 25m

Boise Air Term. Gowen Fld

Fri 6/5

7:40 pm-1:10 am

1 stop5h 30m

$218

BozemanBoise

BZN - BOI

BZNBOI

Bozeman Gallatin Field

Thu 5/28

5:35 am-11:56 am

1 stop6h 21m

Boise Air Term. Gowen Fld

Sun 5/31

6:41 pm-11:59 pm

1 stop5h 18m

$227

MissoulaBoise

MSO - BOI

MSOBOI

Missoula Johnson-Bell Field

Sat 4/25

6:18 pm-9:56 pm

1 stop3h 38m

Boise Air Term. Gowen Fld

Sat 5/2

6:16 pm-11:11 pm

1 stop4h 55m

$285

BillingsSpokane

BIL - GEG

BILGEG

Billings Logan Intl

Wed 4/29

7:00 am-12:40 pm

1 stop6h 40m

Spokane

Sat 5/2

1:41 pm-8:57 pm

1 stop6h 16m

$339

BillingsBoise

BIL - BOI

BILBOI

Billings Logan Intl

Fri 4/17

5:51 pm-10:35 pm

1 stop4h 44m

Boise Air Term. Gowen Fld

Sun 4/19

5:00 am-9:40 am

1 stop4h 40m

$355

MissoulaSpokane

MSO - GEG

MSOGEG

Missoula Johnson-Bell Field

Sun 4/12

11:48 am-10:55 am

1 stop24h 07m

Spokane

Thu 4/16

9:19 pm-8:04 pm

1 stop21h 45m

$414

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 $172. 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 $723.

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 in the afternoon. momondo users have found flights departing from Montana to Idaho in the afternoon 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. At noon is when there is more demand to fly to Idaho, so prices are often more expensive at around $255 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.

Cheap Montana to Idaho flight deals and tips

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

Best Price Found	$133
Fastest flight time	3h 38m
Direct flights	Mon, Tue, Fri and Sat
Airports in Idaho	27 airports

The best one-way flight to Idaho from Montana in the past 72 hours is $133. The best round-trip flight deal from Montana to Idaho found on momondo in the last 72 hours is $207.

The fastest flight from Montana to Idaho takes 3h 38m

Direct flights go from Montana to Idaho on Monday, Tuesday, 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 4 as of March 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 Embraer 175, making up 34.29% of the total bookings. Other popular models include Boeing 737 MAX 8 with 31.43%, Boeing 737-800 Passenger/BBJ2 (winglets) with 20.00%, and Embraer 175 (Enhanced Winglets) with 8.57%.

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 $117	Free Cancellation	Rating 7.9 12,139 reviews	Search Alaska Airlines flights
Delta	PriceFrom $132	Free Cancellation	Rating 7.9 8,360 reviews	Search Delta flights
United Airlines	PriceFrom $148	Free Cancellation	Rating 7.4 9,520 reviews	Search United Airlines flights
Southwest	PriceFrom $158	Free Cancellation	Rating 8.0 4,329 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.

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Popular cities in Idaho

Flights to New Yorkfrom $48

Flights to Los Angelesfrom $53

Flights to Orlandofrom $55

Flights to Miamifrom $55

Flights to Chicagofrom $59

Flights to San Franciscofrom $68

Flights to Las Vegasfrom $54

Flights to Washington, D.C.from $56

Flights to Bostonfrom $76

Flights to Atlantafrom $50

Flights to Dallasfrom $55

Flights to Fort Lauderdalefrom $56

Cheap flights from Montana to Idaho from $96

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 5/6. 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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Alaska Airlines flights from Montana to Idaho

Our best Alaska Airlines 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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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?

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 day?

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

Best Price Found

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?

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

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According to popular flight searches on momondo this year

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