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$327+ Cheap flights from Boston to Great Falls (BOS - GTF)

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 12/19. Fares are subject to change and may not be available on all flights or dates of travel.
BOS — GTF
oct. 11 — oct. 181
sam. 10/11
sam. 10/18
1 adult, Economy
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Cheap flight deals from Boston to Great Falls

Discover tips and strategies to find the most affordable flight options for your journey from Boston (BOS) to Great Falls (GTF). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated septembre 11, 2025.

Round-trip from

$490
(Delta)

One-way from

$327
(United Airlines)

Popular in

November

Cheapest in

January

Average price

$524
From Boston Logan Intl to Great Falls
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One-way flight from Boston Logan Intl to Great Falls
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Highest demand for flights based on searches. 7% potential increase in price ($49 potential increase over avg. RT price).
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Cheapest flight prices on average. 4% potential price decrease ($24 potential savings vs. average RT price).
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Average for round-trip flights in September 2025
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Find flight deals from Boston to Great Falls

Cheapest flights from Boston to Great Falls
Explore the most affordable flight options available from Boston to Great Falls. Find the lowest fares from popular airlines and budget airlines, with prices last updated on septembre 11, 2025.

This United Airlines deal was found by Cheapflights users on 9/10. 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 Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mer. 10/111:45 amBOS - GTF
1 stop27h 41mUnited Airlines
lun. 10/67:00 amGTF - BOS
1 stop21h 00mUnited Airlines
Deal found 9/10$519
This United Airlines deal was found by Cheapflights users on 9/10. 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 Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mer. 10/155:24 pmBOS - GTF
2 stops22h 02mUnited Airlines
dim. 10/192:31 pmGTF - BOS
1 stop13h 29mUnited Airlines
Deal found 9/10$538
This United Airlines deal was found by Cheapflights users on 9/10. 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 Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
jeu. 10/27:30 amBOS - GTF
1 stop15h 41mUnited Airlines
ven. 10/102:31 pmGTF - BOS
1 stop7h 13mUnited Airlines
Deal found 9/10$559
This Alaska Airlines deal was found by Cheapflights users on 9/10. 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mer. 10/157:20 amBOS - GTF
1 stop12h 15mAlaska Airlines
dim. 10/196:15 pmGTF - BOS
1 stop23h 10mAlaska Airlines
Deal found 9/10$595

Cheapflights Fare Finder

 
Customize your flight search to find flights from Boston to Great Falls 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 septembre 11, 2025.
Use the filters below to find and compare flights from Boston to Great Falls that are best for you.

Fly from

Boston

Fly to

Great Falls

Route

Depart

Return

Price

BostonGreat Falls

BOS - GTF

BOSGTF

Boston Logan Intl

mer. 10/1

11:45 am-1:26 pm

1 stop27h 41m

Great Falls

lun. 10/6

7:00 am-6:00 am

1 stop21h 00m

$519

BostonGreat Falls

BOS - GTF

BOSGTF

Boston Logan Intl

mer. 10/15

5:24 pm-1:26 pm

2 stops22h 02m

Great Falls

dim. 10/19

2:31 pm-6:00 am

1 stop13h 29m

$538

BostonGreat Falls

BOS - GTF

BOSGTF

Boston Logan Intl

jeu. 10/2

7:30 am-9:11 pm

1 stop15h 41m

Great Falls

ven. 10/10

2:31 pm-11:44 pm

1 stop7h 13m

$559

BostonGreat Falls

BOS - GTF

BOSGTF

Boston Logan Intl

mer. 10/15

7:20 am-5:35 pm

1 stop12h 15m

Great Falls

dim. 10/19

6:15 pm-7:25 pm

1 stop23h 10m

$595

BostonGreat Falls

BOS - GTF

BOSGTF

Boston Logan Intl

ven. 12/19

7:15 am-1:39 pm

1 stop8h 24m

$327

BostonGreat Falls

BOS - GTF

BOSGTF

Boston Logan Intl

sam. 12/20

4:47 pm-10:46 pm

1 stop7h 59m

$366

BostonGreat Falls

BOS - GTF

BOSGTF

Boston Logan Intl

ven. 12/19

12:50 pm-9:38 am

2 stops46h 48m

$368

BostonGreat Falls

BOS - GTF

BOSGTF

Boston Logan Intl

sam. 12/20

6:00 am-9:38 am

2 stops29h 38m

$440

BostonGreat Falls

BOS - GTF

BOSGTF

Boston Logan Intl

ven. 12/19

12:50 pm-9:38 am

3 stops46h 48m

$522

BostonGreat Falls

BOS - GTF

BOSGTF

Boston Logan Intl

ven. 12/19

6:10 am-12:31 pm

1 stop8h 21m

$564

Flights are sorted by cheapest round-trip flights first.

Deals found on 9/10

Showing 1-10 of 11 results
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Best time to book a flight from Boston to Great Falls

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

What is the cheapest time of day to fly from BOS to GTF?

Find hourly flight availability from Boston to Great Falls. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated septembre 11, 2025.

It’s typically best to fly out from Boston to Great Falls in the morning. Doing so could potentially save you 1% on the flight price compared to flying at noon, which is usually more expensive.

Reviews of airlines servicing Great Falls

Get insights into the airlines that provide service to Great Falls. 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 Great Falls. Reviews last updated septembre 11, 2025.
See what other customers who have flown with Delta and United Airlines from Boston to Great Falls have to say. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.
Delta
8.0
Very good
7,960 reviews

Boarding

8.2

Overall

8.0

Entertainment

7.9

Food

7.3

Crew

8.5

Comfort

7.9

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!
Delta
8.0
Very good
7,960 reviews
Delta
8.0
Very good
7,960 reviews

Boarding

8.2

Overall

8.0

Entertainment

7.9

Food

7.3

Crew

8.5

Comfort

7.9

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!
United Airlines
7.4
Good
8,937 reviews
Delta
8.0
Very good
7,960 reviews

Boarding

8.2

Overall

8.0

Entertainment

7.9

Food

7.3

Crew

8.5

Comfort

7.9

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!

Related info for your journey

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

  • How long is the flight from Boston to Great Falls?

    For as low as $519, United Airlines can have you in Great Falls from Boston in 27h 41m. Airlines will cover a distance of 1982 mi.

  • What are the cheapest airlines flying from Boston to Great Falls round-trip?

    Currently priced at $304, Delta will fly you from Boston to Great Falls and back. In addition to Delta, many other airlines offer competitively priced options for your trip. Check Cheapflights for deals on United Airlines for as low as $410. These flights start at 48% lower than the current average price 3 months from now.

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

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

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

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

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

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

    Currently, January is the cheapest month in which you can book a flight from Boston to Great Falls (average of $367). Flying from Boston to Great Falls in July is currently the most expensive (average of $574). 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

Traveling to a place near Great Falls?

Book flights to Great Falls if you plan to visit one of these locations
Shelby

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Top 2 airlines flying from Boston to Great Falls

Discover the top 2 airlines that operate flights from Boston to Great Falls. 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 septembre 11, 2025.
AirlineCheapestAverageFlexibilityOn-time
DeltaCheapest$304Average$546FlexibilityNo cancel feeOn-timeN/A
United AirlinesCheapest$410Average$596FlexibilityNo cancel feeOn-time69%

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