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$170+ Cheap flights from Great Falls (GTF) 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 6/29. Fares are subject to change and may not be available on all flights or dates of travel.
GTF — BOI
juin 17 — juin 241
mar. 6/17
mar. 6/24
1 adult, Economy
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Cheap flight deals from Great Falls to Idaho

Keep the following information in mind while searching for Great Falls to Idaho flight deals. Data was last updated juin 12, 2025.

Round-trip from

$346
(Delta)

One-way from

$170
(Mytrip)

Popular in

November

Cheapest in

August

Average price

$333
From Great Falls to Idaho
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One-way flight from Great Falls to Idaho
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Highest demand for flights based on searches. 18% potential increase in price ($92 potential increase over avg. RT price).
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Cheapest flight prices on average. 8% potential price decrease ($32 potential savings vs. average RT price).
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Average for round-trip flights in June 2025
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Find flight deals from Great Falls to Idaho

Cheapest flights from Great Falls to Idaho
Explore the most affordable flight options available from Great Falls to Idaho. Find the lowest fares from popular airlines and budget airlines, with prices last updated on juin 12, 2025.

This Delta deal was found by Cheapflights users on 6/11. 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.
dim. 8/176:06 pmGTF - BOI
1 stop5h 53mDelta
sam. 8/2310:45 amBOI - GTF
1 stop6h 41mDelta
Deal found 6/11$346
This Alaska Airlines deal was found by Cheapflights users on 6/11. 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.
dim. 8/174:55 pmGTF - BOI
2 stops28h 11mAlaska Airlines
sam. 8/236:00 amBOI - GTF
2 stops9h 49mAlaska Airlines
Deal found 6/11$413
This Trip.com deal was found by Cheapflights users on 6/11. 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 Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mer. 7/94:55 pmGTF - BOI
1 stop7h 16mHawaiian Airlines
jeu. 7/108:46 pmBOI - GTF
1 stop19h 27mHawaiian Airlines
Deal found 6/11$461
This United Airlines deal was found by Cheapflights users on 6/11. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mer. 7/96:25 amGTF - BOI
2 stops31h 33mUnited Airlines
jeu. 7/107:15 pmBOI - GTF
3 stops42h 21mUnited Airlines
Deal found 6/11$859
This United deal was found by Cheapflights users on 6/10. 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 United is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
dim. 7/66:25 amGTF - BOI
1 stop11h 42mMultiple Airlines
dim. 7/69:46 pmBOI - GTF
2 stops18h 27mMultiple Airlines
Deal found 6/10$1,014

Cheapflights Fare Finder

Customize your flight search to find flights from Great Falls 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 juin 12, 2025.
Use the filters below to find and compare flights from Great Falls to Idaho that are best for you.

Fly from

Great Falls

Fly to

Idaho

Route

Depart

Return

Price

Great FallsBoise

GTF - BOI

GTFBOI

Great Falls

dim. 8/17

6:06 pm-11:59 pm

1 stop5h 53m

Boise Air Term. Gowen Fld

sam. 8/23

10:45 am-5:26 pm

1 stop6h 41m

$346

Great FallsBoise

GTF - BOI

GTFBOI

Great Falls

dim. 8/17

4:55 pm-9:06 pm

2 stops28h 11m

Boise Air Term. Gowen Fld

sam. 8/23

6:00 am-3:49 pm

2 stops9h 49m

$413

Great FallsBoise

GTF - BOI

GTFBOI

Great Falls

mer. 7/9

4:55 pm-12:11 am

1 stop7h 16m

Boise Air Term. Gowen Fld

jeu. 7/10

8:46 pm-4:13 pm

1 stop19h 27m

$461

Great FallsBoise

GTF - BOI

GTFBOI

Great Falls

mer. 7/9

6:25 am-1:58 pm

2 stops31h 33m

Boise Air Term. Gowen Fld

jeu. 7/10

7:15 pm-1:36 pm

3 stops42h 21m

$859

Great FallsBoise

GTF - BOI

GTFBOI

Great Falls

dim. 7/6

6:25 am-6:07 pm

1 stop11h 42m

Boise Air Term. Gowen Fld

dim. 7/6

9:46 pm-4:13 pm

2 stops18h 27m

$1,014

Great FallsBoise

GTF - BOI

GTFBOI

Great Falls

dim. 6/29

7:57 pm-9:47 pm

1 stop25h 50m

$170

Great FallsBoise

GTF - BOI

GTFBOI

Great Falls

ven. 6/20

4:55 pm-10:46 pm

1 stop5h 51m

$313

Great FallsBoise

GTF - BOI

GTFBOI

Great Falls

ven. 6/20

10:17 am-1:45 pm

2 stops27h 28m

$342

Great FallsBoise

GTF - BOI

GTFBOI

Great Falls

sam. 7/26

6:25 am-9:46 am

1 stop27h 21m

$353

Great FallsBoise

GTF - BOI

GTFBOI

Great Falls

dim. 6/29

4:55 pm-11:58 pm

2 stops31h 03m

$523

Flights are sorted by cheapest round-trip flights first.

Deals found on 6/10

Best time to book a flight from Great Falls to Idaho

Have a flexible travel schedule? Discover the best time to fly to Idaho from Great Falls 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 Great Falls to Idaho

What is the cheapest month to book a flight from Great Falls to Idaho?

Currently, October is the cheapest month in which you can book a flight from Great Falls to Idaho (average of $314). Flying from Great Falls to Idaho in June is currently the most expensive (average of $395). 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.

Rainfall in Idaho by month

Plan your trip to Idaho by taking into account the average rainfall totals by month.

In terms of precipitation, rainfall in Idaho ranges from 0.2 - 1.6 inches per month. December is typically the wettest month, when rainfall can reach 1.6 in. August is typically the driest time to visit Idaho when rainfall is around 0.2 in.

Temperature in Idaho by month

Plan your trip to Idaho by taking into account the average temperature totals by month.

If weather is an important factor for your trip to Idaho, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 75.2 F. Travelers looking to avoid the cold should look outside of December, when temperatures are typically at their lowest (around 30.2 F).

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 juin 12, 2025.
Read through reviews of airlines operating flights from Great Falls to Idaho, such as Alaska Airlines, Delta and Hawaiian Airlines. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
Alaska Airlines
8.0
Very good
10,000 reviews

Entertainment

7.1

Boarding

8.1

Comfort

7.8

Food

7.1

Overall

8.0

Crew

8.5

Reviews

1 / 20
10.0
Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.
Alaska Airlines
8.0
Very good
10,000 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Entertainment

7.1

Boarding

8.1

Comfort

7.8

Food

7.1

Overall

8.0

Crew

8.5

Reviews

1 / 20
10.0
Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.
Delta
8.0
Very good
7,950 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Entertainment

7.1

Boarding

8.1

Comfort

7.8

Food

7.1

Overall

8.0

Crew

8.5

Reviews

1 / 20
10.0
Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.
Hawaiian Airlines
7.9
Good
2,494 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Entertainment

7.1

Boarding

8.1

Comfort

7.8

Food

7.1

Overall

8.0

Crew

8.5

Reviews

1 / 20
10.0
Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.
United Airlines
7.4
Good
8,790 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Entertainment

7.1

Boarding

8.1

Comfort

7.8

Food

7.1

Overall

8.0

Crew

8.5

Reviews

1 / 20
10.0
Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.
Allegiant Air
7.3
Good
725 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Entertainment

7.1

Boarding

8.1

Comfort

7.8

Food

7.1

Overall

8.0

Crew

8.5

Reviews

1 / 20
10.0
Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.

Related info for your journey

Find useful and relevant information for your journey from Great Falls to Idaho. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • What airport do you fly from for flights from Great Falls to Idaho?

    For a flight from Great Falls to Idaho, you will be flying from Great Falls. Great Falls (GTF) is just 3.5 mi from the center of the city.

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

    To fly one-way, consider booking your trip with Allegiant Air, which is currently one of the cheapest options available, starting at $170. Hawaiian Airlines flights start at $313 while deals on United Airlines start at $353 one-way.

  • Can I find deals for flights from Great Falls to Idaho that include hotel bookings?

    Yes. In addition to deals on Great Falls to Idaho flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Great Falls to Idaho?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Great Falls to Idaho.

  • Can I find deals for business class flights from Great Falls to Idaho?

    Yes. Cheapflights offers flight deals from Great Falls 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 Great Falls to Idaho?

    Currently, October is the cheapest month in which you can book a flight from Great Falls to Idaho (average of $314). Flying from Great Falls to Idaho in June is currently the most expensive (average of $395). 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 Great Falls to Idaho

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Top airline flying from Great Falls to Idaho

Discover the top airline that operate flights from Great Falls 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 juin 12, 2025.
AirlineCheapestAverageFlexibilityOn-time
DeltaCheapest$236Average$338FlexibilityNo cancel feeOn-timeN/A

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