What is the cheapest airline that flies from Great Falls to Idaho?

Alaska Airlines is the most popular carrier operating from Great Falls to Idaho

When did momondo last update prices for flights from Great Falls Airport to Idaho?

Prices for flights from Great Falls Airport to Idaho refresh daily.

How many operators does momondo search for flights from Great Falls Airport to Idaho?

As of October 2026, there is 1 operator available to choose from for flights from Great Falls Airport to Idaho.

How old do you have to be to fly from Great Falls Airport to Idaho?

The minimum age for a child to fly alone is five, but airlines that offer an unaccompanied minor (UNMR) service may have their own age limitations. Flight duration, scheduling, and layovers are among the considerations that may influence age limits. We recommend that you double-check with the airline you are booking with for travel from Great Falls Airport to Idaho.

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

The required travel and health documents for your Idaho trip may vary depending on your itinerary and personal circumstances. As a general rule, you should carry multiple documents, including a national ID card or driver's license and a passport valid for six months after your intended arrival at Idaho. We recommend that you seek guidance from your airline or a reliable third party such as IATA.

$297 Cheap Flights from Great Falls to Idaho in 2026/27

Discover deals from 900+ travel sites with momondo.

Find the cheapest flights from Great Falls to Idaho

Round-trip

One-way

Last minute

Cheap round-trip flights

Enter your travel dates to find the best prices.

6:20 pm - 12:04 amGTF Great Falls-BOI Boise Air Term. Gowen Fld

5h 44m1 stop Salt Lake City

6:00 am - 12:27 pmBOI Boise Air Term. Gowen Fld-GTF Great Falls

6h 27m1 stop Salt Lake City

$374Delta

Tue, Feb 23 - Tue, Mar 2

4:55 pm - 10:20 pmGTF Great Falls-BOI Boise Air Term. Gowen Fld

5h 25m1 stop Seattle/Tacoma Intl

12:00 pm - 4:13 pmBOI Boise Air Term. Gowen Fld-GTF Great Falls

4h 13m1 stop Seattle/Tacoma Intl

$388Alaska Airlines

Sat, Feb 27 - Wed, Mar 3

1:10 pm - 4:49 pmGTF Great Falls-BOI Boise Air Term. Gowen Fld

3h 39m1 stop Salt Lake City

1:15 pm - 5:43 pmBOI Boise Air Term. Gowen Fld-GTF Great Falls

4h 28m1 stop Salt Lake City

$394Delta

Wed, Feb 17 - Sun, Feb 21

1:16 pm - 5:40 pmGTF Great Falls-BOI Boise Air Term. Gowen Fld

4h 24m1 stop Salt Lake City

6:35 pm - 10:33 pmBOI Boise Air Term. Gowen Fld-GTF Great Falls

3h 58m1 stop Salt Lake City

$441Delta

Fri, Dec 25 - Mon, Dec 28

4:55 pm - 9:39 pmGTF Great Falls-BOI Boise Air Term. Gowen Fld

28h 44m2 stops Seattle/Tacoma Intl Ontario

12:00 pm - 4:13 pmBOI Boise Air Term. Gowen Fld-GTF Great Falls

4h 13m1 stop Seattle/Tacoma Intl

$450Alaska Airlines

Tue, Feb 23 - Tue, Mar 2

4:55 pm - 12:50 pmGTF Great Falls-BOI Boise Air Term. Gowen Fld

19h 55m2 stops Seattle/Tacoma Intl Portland

12:00 pm - 4:13 pmBOI Boise Air Term. Gowen Fld-GTF Great Falls

4h 13m1 stop Seattle/Tacoma Intl

$479Alaska Airlines

Sat, Feb 27 - Wed, Mar 3

1:16 pm - 5:40 pmGTF Great Falls-BOI Boise Air Term. Gowen Fld

4h 24m1 stop Salt Lake City

6:35 pm - 5:43 pmBOI Boise Air Term. Gowen Fld-GTF Great Falls

23h 08m1 stop Salt Lake City

$532Delta

Fri, Dec 25 - Sun, Jan 3

1:16 pm - 5:40 pmGTF Great Falls-BOI Boise Air Term. Gowen Fld

4h 24m1 stop Salt Lake City

6:35 pm - 10:33 pmBOI Boise Air Term. Gowen Fld-GTF Great Falls

3h 58m1 stop Salt Lake City

$538Delta

Fri, Dec 25 - Sat, Jan 2

1:21 pm - 5:55 pmGTF Great Falls-BOI Boise Air Term. Gowen Fld

4h 34m1 stop Salt Lake City

1:19 pm - 5:39 pmBOI Boise Air Term. Gowen Fld-GTF Great Falls

4h 20m1 stop Salt Lake City

$578Delta

Thu, Nov 19 - Tue, Nov 24

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Alaska Airlines flights from Great Falls to Idaho

Our best Alaska Airlines deals on Great Falls to Idaho flight tickets

Alaska Airlines

Feb 27

GTF4:55 pmGreat Falls

5h 25m

1 stop

BOI10:20 pmBoise Air Term. Gowen Fld

Mar 3

BOI12:00 pmBoise Air Term. Gowen Fld

4h 13m

1 stop

GTF4:13 pmGreat Falls

$388

Alaska Airlines

Feb 23

GTF4:55 pmGreat Falls

28h 44m

2 stops

BOI9:39 pmBoise Air Term. Gowen Fld

Mar 2

BOI12:00 pmBoise Air Term. Gowen Fld

4h 13m

1 stop

GTF4:13 pmGreat Falls

$450

Alaska Airlines

Feb 27

GTF4:55 pmGreat Falls

19h 55m

2 stops

BOI12:50 pmBoise Air Term. Gowen Fld

Mar 3

BOI12:00 pmBoise Air Term. Gowen Fld

4h 13m

1 stop

GTF4:13 pmGreat Falls

$479

Delta flights from Great Falls to Idaho

Our best Delta deals on Great Falls to Idaho flight tickets

Delta

Feb 23

GTF6:20 pmGreat Falls

5h 44m

1 stop

BOI12:04 amBoise Air Term. Gowen Fld

Mar 2

BOI6:00 amBoise Air Term. Gowen Fld

6h 27m

1 stop

GTF12:27 pmGreat Falls

$374

Delta

Feb 17

GTF1:10 pmGreat Falls

3h 39m

1 stop

BOI4:49 pmBoise Air Term. Gowen Fld

Feb 21

BOI1:15 pmBoise Air Term. Gowen Fld

4h 28m

1 stop

GTF5:43 pmGreat Falls

$394

Delta

Dec 25

GTF1:16 pmGreat Falls

4h 24m

1 stop

BOI5:40 pmBoise Air Term. Gowen Fld

Dec 28

BOI6:35 pmBoise Air Term. Gowen Fld

3h 58m

1 stop

GTF10:33 pmGreat Falls

$441

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

Great FallsBoise

GTF Great Falls - BOI Boise Air Term. Gowen Fld

GTFBOI

Great Falls

Tue 2/23

6:20 pm-12:04 am

1 stop5h 44m

Boise Air Term. Gowen Fld

Tue 3/2

6:00 am-12:27 pm

1 stop6h 27m

$374

Great FallsBoise

GTF Great Falls - BOI Boise Air Term. Gowen Fld

GTFBOI

Great Falls

Sat 2/27

4:55 pm-10:20 pm

1 stop5h 25m

Boise Air Term. Gowen Fld

Wed 3/3

12:00 pm-4:13 pm

1 stop4h 13m

$388

Quickest round-trip

Great FallsBoise

GTF Great Falls - BOI Boise Air Term. Gowen Fld

GTFBOI

Great Falls

Wed 2/17

1:10 pm-4:49 pm

1 stop3h 39m

Boise Air Term. Gowen Fld

Sun 2/21

1:15 pm-5:43 pm

1 stop4h 28m

$394

Great FallsBoise

GTF Great Falls - BOI Boise Air Term. Gowen Fld

GTFBOI

Great Falls

Fri 12/25

1:16 pm-5:40 pm

1 stop4h 24m

Boise Air Term. Gowen Fld

Mon 12/28

6:35 pm-10:33 pm

1 stop3h 58m

$441

Great FallsBoise

GTF Great Falls - BOI Boise Air Term. Gowen Fld

GTFBOI

Great Falls

Tue 2/23

4:55 pm-9:39 pm

2 stops28h 44m

Boise Air Term. Gowen Fld

Tue 3/2

12:00 pm-4:13 pm

1 stop4h 13m

$450

Great FallsBoise

GTF Great Falls - BOI Boise Air Term. Gowen Fld

GTFBOI

Great Falls

Sat 2/27

4:55 pm-12:50 pm

2 stops19h 55m

Boise Air Term. Gowen Fld

Wed 3/3

12:00 pm-4:13 pm

1 stop4h 13m

$479

Great FallsBoise

GTF Great Falls - BOI Boise Air Term. Gowen Fld

GTFBOI

Great Falls

Fri 12/25

1:16 pm-5:40 pm

1 stop4h 24m

Boise Air Term. Gowen Fld

Sun 1/3

6:35 pm-5:43 pm

1 stop23h 08m

$532

Great FallsBoise

GTF Great Falls - BOI Boise Air Term. Gowen Fld

GTFBOI

Great Falls

Fri 12/25

1:16 pm-5:40 pm

1 stop4h 24m

Boise Air Term. Gowen Fld

Sat 1/2

6:35 pm-10:33 pm

1 stop3h 58m

$538

Great FallsBoise

GTF Great Falls - BOI Boise Air Term. Gowen Fld

GTFBOI

Great Falls

Thu 11/19

1:21 pm-5:55 pm

1 stop4h 34m

Boise Air Term. Gowen Fld

Tue 11/24

1:19 pm-5:39 pm

1 stop4h 20m

$578

Cheapest one-way

Quickest one-way

Great FallsBoise

GTF Great Falls - BOI Boise Air Term. Gowen Fld

GTFBOI

Great Falls

Wed 10/21

5:15 pm-11:59 pm

1 stop6h 44m

$297

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 12 resultsSorted by cheapest first

How to get the cheapest flight ticket from Great Falls 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

What is the cheapest month to fly to Idaho?

In general, June is the cheapest month to fly from Great Falls to Idaho. Due to it being the ‘off-season’ during this time, you can expect flight prices to be around $0. If you don’t want to visit Idaho in June, then you should wait until March to fly from Great Falls, when ticket prices are also cheap, with an average price of $0.

Cheap Great Falls to Idaho flight deals and tips

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

Best Price Found	$297
Fastest flight time	3h 39m
Direct flights	None

The best one-way flight to Idaho from Great Falls in the past 72 hours is $297. The best round-trip flight deal from Great Falls to Idaho found on momondo in the last 72 hours is $374.

The fastest flight from Great Falls to Idaho takes 3h 39m

There are no direct flights from Great Falls to Idaho. There are no popular flight routes from Great Falls to Idaho.

Search flight deals

Frequently asked questions about flying from Great Falls to Idaho

When did momondo last update prices for flights from Great Falls Airport to Idaho?
Prices for flights from Great Falls Airport to Idaho refresh daily.
How many operators does momondo search for flights from Great Falls Airport to Idaho?
As of October 2026, there is 1 operator available to choose from for flights from Great Falls Airport to Idaho.
How old do you have to be to fly from Great Falls Airport to Idaho?
The minimum age for a child to fly alone is five, but airlines that offer an unaccompanied minor (UNMR) service may have their own age limitations. Flight duration, scheduling, and layovers are among the considerations that may influence age limits. We recommend that you double-check with the airline you are booking with for travel from Great Falls Airport to Idaho.
What documentation or ID do you need to fly to Idaho?
The required travel and health documents for your Idaho trip may vary depending on your itinerary and personal circumstances. As a general rule, you should carry multiple documents, including a national ID card or driver's license and a passport valid for six months after your intended arrival at Idaho. We recommend that you seek guidance from your airline or a reliable third party such as IATA.

Best airlines flying from Great Falls to Idaho

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

Airline	Rating	Free Cancellation	Price
Delta	PriceFrom $364	Free Cancellation	Rating 7.8 8,626 reviews		Search Delta flights

Why use momondo?

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

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

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

Yes. momondo enables you to select and highlight flights to Idaho from Great Falls with this policy.

How can momondo help me find flights from Great Falls to Idaho?

Once all potential Great Falls 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 Great Falls to Idaho right now. Can momondo alert me if prices change?

If you are simply researching potential flights to Idaho, momondo offers a useful price alert feature which will track prices for flights to Idaho from Great Falls and alert you when they change.