$199+ Cheap flights from Boston to Great Falls (BOS - GTF)
This is the cheapest round-trip flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 9/26. Fares are subject to change and may not be available on all flights or dates of travel.
BOS — GTF
Oct 7 — Oct 141
Round-trip
1 adult, Economy
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Find cheap flights from Boston to Great Falls with Cheapflights
1. Tell us where you want to go
Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”2. Select your favorite providers
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Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.Cheap flight deals from Boston to Great Falls
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Best
Last-minute
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Cheapest flights from Boston to Great FallsExplore 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 September 7, 2026.
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 September 7, 2026.
This Alaska Airlines deal was found by Cheapflights users on 9/6. 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 11/147:13 am -
1 stop11h 06m
Tue 11/174:59 pm -
1 stop10h 41m
Deal found 9/6![Alaska Airlines logo]()
$398
This United Airlines deal was found by Cheapflights users on 9/6. 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.
Fri 12/48:27 am -
2 stops15h 23m
Wed 12/92:47 pm -
1 stop7h 17m
Deal found 9/6![United Airlines logo]()
$424
This United Airlines deal was found by Cheapflights users on 9/2. 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 11/141:29 pm -
2 stops10h 09m
Tue 11/176:30 am -
2 stops13h 00m
Deal found 9/2![United Airlines logo]()
$509
This United Airlines deal was found by Cheapflights users on 9/3. 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.
Fri 9/188:00 am -
2 stops15h 12m
Tue 9/222:25 pm -
1 stop7h 29m
Deal found 9/3![United Airlines logo]()
$567
This United Airlines deal was found by Cheapflights users on 9/4. 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.
Sun 9/67:45 am -
1 stop7h 44m
Wed 9/162:25 pm -
1 stop7h 29m
Deal found 9/4![United Airlines logo]()
$593
This Delta deal was found by Cheapflights users on 9/7. 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.
Sat 9/124:45 pm -
1 stop7h 52m
Sat 9/196:21 pm -
1 stop10h 09m
Deal found 9/7![Delta logo]()
$613
Best flights from Boston to Great FallsDiscover carefully curated flight deals from Boston to Great Falls that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated September 7, 2026.
Discover carefully curated flight deals from Boston to Great Falls that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated September 7, 2026.
This Alaska Airlines deal was found by Cheapflights users on 9/2. 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 11/147:13 am -
1 stop11h 06m
Tue 11/174:59 pm -
1 stop10h 41m
Deal found 9/2![Alaska Airlines logo]()
$398
This Delta deal was found by Cheapflights users on 9/3. 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.
Sun 10/46:05 am -
1 stop8h 30m
Sun 10/116:27 pm -
1 stop9h 58m
Deal found 9/3![Delta logo]()
$398
This United Airlines deal was found by Cheapflights users on 9/2. 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 11/141:29 pm -
2 stops10h 09m
Tue 11/176:30 am -
2 stops13h 00m
Deal found 9/2![United Airlines logo]()
$509
Last-minute flights from Boston to Great FallsDiscover last-minute flight deals from Boston to Great Falls. Data last updated September 7, 2026 and is based on user searches.
Discover last-minute flight deals from Boston to Great Falls. Data last updated September 7, 2026 and is based on user searches.
This United Airlines deal was found by Cheapflights users on 9/2. 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.
Thu 9/37:45 am -
1 stop7h 44m
Thu 9/102:25 pm -
1 stop7h 29m
Deal found 9/2![United Airlines logo]()
$616
This United Airlines deal was found by Cheapflights users on 9/2. 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 9/510:50 am -
2 stops12h 22m
Sat 9/122:25 pm -
1 stop7h 27m
Deal found 9/2![United Airlines logo]()
$623
This United Airlines deal was found by Cheapflights users on 9/4. 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.
Sun 9/67:45 am -
1 stop7h 44m
Wed 9/162:25 pm -
1 stop7h 29m
Deal found 9/4![United Airlines logo]()
$593
This Delta deal was found by Cheapflights users on 9/7. 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.
Sat 9/124:45 pm -
1 stop7h 52m
Sat 9/196:21 pm -
1 stop10h 09m
Deal found 9/7![Delta logo]()
$613
This United Airlines deal was found by Cheapflights users on 9/4. 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 9/1210:38 am -
2 stops12h 34m
Sat 9/196:15 am -
2 stops11h 04m
Deal found 9/4![United Airlines logo]()
$629
This United Airlines deal was found by Cheapflights users on 9/3. 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.
Fri 9/188:00 am -
2 stops15h 12m
Tue 9/222:25 pm -
1 stop7h 29m
Deal found 9/3![United Airlines logo]()
$567
This Delta deal was found by Cheapflights users on 9/3. 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.
Sun 10/46:05 am -
1 stop8h 30m
Sun 10/116:27 pm -
1 stop9h 58m
Deal found 9/3![Delta logo]()
$398
This United Airlines deal was found by Cheapflights users on 9/4. 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 10/109:23 am -
2 stops13h 59m
Tue 10/132:37 pm -
1 stop7h 22m
Deal found 9/4![United Airlines logo]()
$634
One-way flights from Boston to Great FallsSearch for one-way flight options from Boston to Great Falls. Find affordable one-way fares based on user searches. Data last updated September 7, 2026.
Search for one-way flight options from Boston to Great Falls. Find affordable one-way fares based on user searches. Data last updated September 7, 2026.
This Delta deal was found by Cheapflights users on 9/2. 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.
Sat 9/266:05 am -
1 stop8h 30m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/2![Delta logo]()
$199
This Alaska Airlines deal was found by Cheapflights users on 9/4. 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 9/2610:03 am -
1 stop8h 36m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/4![Alaska Airlines logo]()
$324
This Priceline deal was found by Cheapflights users on 9/4. 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 Priceline is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 12/249:00 am -
1 stop9h 32m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/4![Alaska Airlines logo]()
$397
This United Airlines deal was found by Cheapflights users on 9/3. 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 9/266:00 am -
3 stops17h 22m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/3![United Airlines logo]()
$425
This United Airlines deal was found by Cheapflights users on 9/4. 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.
Thu 12/243:05 pm -
1 stop8h 36m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/4![United Airlines logo]()
$444
Find 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 September 7, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $398 (Alaska Airlines) |
One-way from | $199 (Delta) |
Popular in | November |
Cheapest in | February |
Average price | $473 |
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 7,457,451 searches. Data last updated September 7, 2026.
Use the filters below to find and compare flights from Boston to Great Falls that are best for you.
Fly from
Fly to
Route
Depart
Return
Cheapest round-trip
BostonGreat Falls
BOS Boston Logan Intl - GTF Great Falls
BOSGTF
Boston Logan Intl
Sat 11/14
7:13 am-4:19 pm
1 stop11h 06m
Great Falls
Tue 11/17
4:59 pm-5:40 am
1 stop10h 41m
$398
BostonGreat Falls
BOS Boston Logan Intl - GTF Great Falls
BOSGTF
Boston Logan Intl
Sun 10/4
6:05 am-12:35 pm
1 stop8h 30m
Great Falls
Sun 10/11
6:27 pm-6:25 am
1 stop9h 58m
$398
BostonGreat Falls
BOS Boston Logan Intl - GTF Great Falls
BOSGTF
Boston Logan Intl
Tue 12/29
10:30 am-5:40 pm
1 stop9h 10m
Great Falls
Wed 12/31
12:00 am-2:00 am
Nonstop0h 00m
$444
BostonGreat Falls
BOS Boston Logan Intl - GTF Great Falls
BOSGTF
Boston Logan Intl
Thu 12/24
9:30 am-9:41 pm
2 stops14h 11m
Great Falls
Wed 12/31
12:00 am-2:00 am
Nonstop0h 00m
$450
BostonGreat Falls
BOS Boston Logan Intl - GTF Great Falls
BOSGTF
Boston Logan Intl
Tue 12/29
5:00 pm-1:41 pm
2 stops22h 41m
Great Falls
Wed 12/31
12:00 am-2:00 am
Nonstop0h 00m
$458
BostonGreat Falls
BOS Boston Logan Intl - GTF Great Falls
BOSGTF
Boston Logan Intl
Tue 12/29
7:00 am-4:32 pm
1 stop11h 32m
Great Falls
Wed 12/31
12:00 am-2:00 am
Nonstop0h 00m
$484
BostonGreat Falls
BOS Boston Logan Intl - GTF Great Falls
BOSGTF
Boston Logan Intl
Sat 11/14
1:29 pm-9:38 pm
2 stops10h 09m
Great Falls
Tue 11/17
6:30 am-9:30 pm
2 stops13h 00m
$509
Quickest round-trip
BostonGreat Falls
BOS Boston Logan Intl - GTF Great Falls
BOSGTF
Boston Logan Intl
Sat 12/26
3:30 pm-10:33 pm
1 stop9h 03m
Great Falls
Wed 12/31
12:00 am-2:00 am
Nonstop0h 00m
$524
Sorted by cheapest first
Compare providers for flights from Boston to Great Falls
Provider information is updated monthly. Please note that these providers often have deals for this flight, but the availability may vary on a day-by-day basis on Cheapflights.
Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from Boston to Great Falls in September.
| Provider | Price Accuracy | Trust Score* |
|---|---|---|
| Price Accuracy1 star | Trust Score*3 stars | |
| Price Accuracy3 stars | Trust Score*3 stars | |
| Price Accuracy- | Trust Score*1 star |
- Most accurate provider: When it comes to deals on Boston-Great Falls flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Boston-Great Falls flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from Boston-Great Falls flight searches over the past month and is updated monthly.
- Most trusted provider: When it comes to deals on Boston-Great Falls flights, Cheapflights users trust FlightHub the most. FlightHub has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for Boston-Great Falls flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.
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.
BOS-GTF
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’s the top layover airport for flights from Boston to Great Falls?
Share of 1-stop round-trip flights from Boston to Great Falls chosen by Cheapflights users in the past 12 months, using the same layover each way.
Seattle (SEA) – chosen by Cheapflights users on 67% of 1-stop itineraries from Boston to Great Falls on Cheapflights.
What’s the cheapest layover airport for flights from Boston to Great Falls?
Average round-trip fare for 1-stop flights from Boston to Great Falls, chosen by Cheapflights users in the past 12 months, with the same layover each way.
Chicago (ORD) is the most affordable 1-stop option, with an average round-trip price of $514.
What’s the fastest layover option from Boston to Great Falls?
Shortest average travel time for 1-stop one-way flights from Boston to Great Falls, based on itineraries clicked by Cheapflights users over the past 12 months, grouped by layover airport.
Flights via Chicago (ORD) have the shortest average one-way travel time for 1-stop routes: 7h 46m.
Which airport typically offers the quickest layover for flights from Boston to Great Falls?
Average layover duration for 1-stop one-way flights from Boston to Great Falls, chosen by Cheapflights users in the last 12 months, grouped by stopover airport.
Flights via Chicago (ORD) offer the fastest connection on this route, with an average layover time of 1h 17m.
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 September 7, 2026.
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.
Comfort
7.8
Boarding
8.1
Overall
7.8
Food
7.2
Entertainment
7.8
Crew
8.5
Reviews
1 / 20
6.0
GoodCidalia,Aug 2023
BOS - MIA
Comfort
7.8
Boarding
8.1
Overall
7.8
Food
7.2
Entertainment
7.8
Crew
8.5
Reviews
1 / 20
6.0
GoodCidalia,Aug 2023
BOS - MIA
Comfort
7.8
Boarding
8.1
Overall
7.8
Food
7.2
Entertainment
7.8
Crew
8.5
Reviews
1 / 20
6.0
GoodCidalia,Aug 2023
BOS - MIA
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.
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Book flights to Great Falls if you plan to visit one of these locationsShelby
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Other flights to Great Falls
Explore flights to Great Falls departing from other origins. Flights are based on user searches made on Cheapflights and were last updated on September 7, 2026.
Boston and Great Falls flights
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Other flights from Boston
Browse through other flights departing from Boston. Flights are based on user searches made on Cheapflights and were last updated on September 7, 2026.
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Check out other popular destinations found by fellow travelers in 2026
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 7,457,451 searches. Data last updated September 7, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$324 | Average$480 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$466 | Average$601 | FlexibilityNo cancel fee | On-time69% |