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$83+ 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 9/5. Fares are subject to change and may not be available on all flights or dates of travel.
GTF — BOI
Aug 4 — Aug 111
Mon 8/4
Mon 8/11
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 July 30, 2025.

Round-trip from

$269
(Alaska Airlines)

One-way from

$83
(Mytrip)

Popular in

November

Cheapest in

August

Average price

$349
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. 15% potential increase in price ($75 potential increase over avg. RT price).
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Cheapest flight prices on average. 7% potential price decrease ($30 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 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 July 30, 2025.

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.
Sat 8/304:29 pmGTF - BOI
1 stop7h 30mAlaska Airlines
Sat 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.
Fri 9/56:06 pmGTF - BOI
2 stops16h 58mDelta
Sat 9/66:00 pmBOI - GTF
1 stop4h 45mDelta
Deal found 7/29$299
This United 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 8/302:35 pmGTF - BOI
3 stops23h 14mUnited Airlines
Sat 9/62:13 pmBOI - GTF
2 stops23h 24mUnited Airlines
Deal found 7/30$632

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 July 30, 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

Sat 8/30

4:29 pm-11:59 pm

1 stop7h 30m

Boise Air Term. Gowen Fld

Sat 9/6

8:00 am-3:49 pm

1 stop7h 49m

$269

Great FallsBoise

GTF - BOI

GTFBOI

Great Falls

Fri 9/5

6:06 pm-11:04 am

2 stops16h 58m

Boise Air Term. Gowen Fld

Sat 9/6

6:00 pm-10:45 pm

1 stop4h 45m

$299

Great FallsBoise

GTF - BOI

GTFBOI

Great Falls

Sat 8/30

2:35 pm-1:49 pm

3 stops23h 14m

Boise Air Term. Gowen Fld

Sat 9/6

2:13 pm-1:37 pm

2 stops23h 24m

$632

Great FallsBoise

GTF - BOI

GTFBOI

Great Falls

Fri 9/5

10:21 pm-1:21 pm

1 stop15h 00m

$83

Great FallsBoise

GTF - BOI

GTFBOI

Great Falls

Sat 8/30

4:29 pm-11:59 pm

1 stop7h 30m

$138

Great FallsBoise

GTF - BOI

GTFBOI

Great Falls

Fri 9/5

6:06 pm-1:06 pm

2 stops19h 00m

$163

Great FallsBoise

GTF - BOI

GTFBOI

Great Falls

Sat 8/30

2:35 pm-1:49 pm

3 stops23h 14m

$336

Flights are sorted by cheapest round-trip flights first.

Deals found on 7/29

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 $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.

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 July 30, 2025.
See what other customers who have flown with Alaska Airlines, Delta, and United Airlines from Great Falls to Idaho have to say. Users can see the overall rating for each airline as well as how each is rated in terms of entertainment options, comfort, food, crew/service, and boarding process.
Alaska Airlines
8.0
Very good
10,000 reviews

Crew

8.5

Entertainment

7.1

Food

7.1

Overall

8.0

Boarding

8.1

Comfort

7.8

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

Crew

8.5

Entertainment

7.1

Food

7.1

Overall

8.0

Boarding

8.1

Comfort

7.8

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
7,980 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Crew

8.5

Entertainment

7.1

Food

7.1

Overall

8.0

Boarding

8.1

Comfort

7.8

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
8,896 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Crew

8.5

Entertainment

7.1

Food

7.1

Overall

8.0

Boarding

8.1

Comfort

7.8

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 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 Alaska Airlines, which is currently one of the cheapest options available, starting at $138. Delta flights start at $163 while deals on United Airlines start at $336 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 $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 Great Falls to Idaho

See prices for flight routes from nearby airports that may be better suited for you.
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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 July 30, 2025.
AirlineCheapestAverageFlexibilityOn-time
DeltaCheapest$236Average$378FlexibilityNo cancel feeOn-timeN/A

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