HomeSearch by dateVacation packagesHotelsFlight dealsCar rentalTravel tips & news
Boston

$550+ Cheap flights from Belfast Intl (BFS) to Boston (BOS)

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 2/26. Fares are subject to change and may not be available on all flights or dates of travel.
BFS — BOS
Feb 13 — Feb 201
Fri 2/13
Fri 2/20
1 adult, Economy
We work with more than 300 partners to bring you better travel deals

Find cheap flights from Belfast Intl to Boston 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

We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.

3. Compare prices and book

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 Belfast Intl to Boston

Discover tips and strategies to find the most affordable flight options for your journey from Belfast Intl (BFS) to Boston (BOS). 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 January 14, 2026.

Most accurate provider

eDreams
3 stars

Most trusted provider

eDreams
3 stars

Round-trip from

$550
(Mytrip)

Popular in

December

Cheapest in

February

Average price

$540
Provider with most accurate pricing for Belfast Intl-Boston Logan Intl flight deals.
Search Deals
Provider most trusted by Cheapflights users for Belfast Intl-Boston Logan Intl flights.
Search Deals
From Belfast Intl to Boston Logan Intl
Search Deals
Highest demand for flights based on searches. 0% potential increase in price ($4 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 3% potential price decrease ($26 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in January 2026
Search Deals

Find flight deals from Belfast Intl to Boston

Cheapest flights from Belfast Intl to Boston
Explore the most affordable flight options available from Belfast Intl to Boston. Find the lowest fares from popular airlines and budget airlines, with prices last updated on January 14, 2026.

This Mytrip deal was found by Cheapflights users on 1/12. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 2/266:30 am
BFS
-
BOS
2 stops16h 20m
Multiple Airlines
Thu 3/511:35 am
BOS
-
BFS
2 stops29h 45m
Multiple Airlines
Deal found 1/12$550
This Mytrip deal was found by Cheapflights users on 1/12. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 1/266:30 am
BFS
-
BOS
2 stops16h 20m
Multiple Airlines
Tue 2/37:50 pm
BOS
-
BFS
2 stops17h 05m
Multiple Airlines
Deal found 1/12$579
This Mytrip deal was found by Cheapflights users on 1/13. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 2/276:00 pm
BFS
-
BOS
3 stops26h 50m
Multiple Airlines
Fri 3/65:35 pm
BOS
-
BFS
3 stops23h 25m
Multiple Airlines
Deal found 1/13$710
This Mytrip deal was found by Cheapflights users on 1/13. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 2/14:45 pm
BFS
-
BOS
2 stops26h 50m
Multiple Airlines
Tue 2/37:50 pm
BOS
-
BFS
2 stops15h 10m
Multiple Airlines
Deal found 1/13$792
This Kiwi.com deal was found by Cheapflights users on 1/12. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 2/148:00 am
BFS
-
BOS
2 stops15h 59m
Multiple Airlines
Tue 2/178:35 pm
BOS
-
BFS
1 stop12h 50m
Multiple Airlines
Deal found 1/12$1,070

Cheapflights Fare Finder

 
Customize your flight search to find flights from Belfast Intl to Boston 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 January 14, 2026.
Use the filters below to find and compare flights from Belfast Intl Airport to Boston that are best for you.

Fly from

Belfast Intl

Fly to

Boston

Route

Depart

Return

Price

BelfastBoston

BFS - BOS

BFSBOS

Belfast Intl

Mon 1/26

6:30 am-5:50 pm

2 stops16h 20m

Boston Logan Intl

Tue 2/3

7:50 pm-5:55 pm

2 stops17h 05m

$579

BelfastBoston

BFS - BOS

BFSBOS

Belfast Intl

Thu 2/26

4:35 pm-3:50 pm

2 stops28h 15m

Boston Logan Intl

Thu 3/5

5:35 pm-8:25 pm

3 stops21h 50m

$657

BelfastBoston

BFS - BOS

BFSBOS

Belfast Intl

Fri 2/27

6:00 pm-3:50 pm

3 stops26h 50m

Boston Logan Intl

Fri 3/6

5:35 pm-10:00 pm

3 stops23h 25m

$710

BelfastBoston

BFS - BOS

BFSBOS

Belfast Intl

Sun 2/1

4:45 pm-2:35 pm

2 stops26h 50m

Boston Logan Intl

Tue 2/3

7:50 pm-4:00 pm

2 stops15h 10m

$792

Flights are sorted by cheapest round-trip flights first.

Deals found on 1/12

Compare providers for flights from Belfast Intl to Boston

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 Belfast Intl to Boston in January.
ProviderPrice AccuracyTrust Score*
eDreamsPrice Accuracy3 starsTrust Score*3 stars
FlightHubPrice Accuracy3 starsTrust Score*1 star

*The Trust Score is based on feedback from users after their booking experience. It measures overall satisfaction, helping us identify issues like hidden fees, problems during the ticketing process, and the quality of customer service. This score is our best indicator of the provider's quality and reliability.

  • Most accurate provider: When it comes to deals on Belfast Intl Airport-Boston flights, users find the pricing of eDreams to be most consistent on Cheapflights vs. eDreams Users can find the same prices on Belfast Intl Airport-Boston flight deals on Cheapflights vs. eDreams >95% of the time. Price accuracy is based on data collected from Belfast Intl Airport-Boston flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on Belfast Intl Airport-Boston flights, Cheapflights users trust eDreams the most. eDreams 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 Belfast Intl Airport-Boston 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 Belfast Intl to Boston

Have a flexible travel schedule? Discover the best time to fly to Boston from Belfast Intl 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 Belfast Intl Airport to Boston

How much does it cost to fly round-trip from Belfast Intl Airport to Boston?

Related info for your journey

Find useful and relevant information for your journey from Belfast Intl to Boston. 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 into for flights to Boston from Belfast Intl?

    Most people fly into Boston Logan Intl (BOS) if they book a flight to Boston from Belfast Intl. On average, Logan Intl has 0 inbound flights from Belfast Intl per day from 0 airlines. Boston Logan Intl is conveniently located just 2.6 mi from Boston’s city center.

  • Can I find deals for flights from Belfast Intl to Boston that include hotel bookings?

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

  • How can I find direct flights from Belfast Intl to Boston?

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

  • Can I find deals for business class flights from Belfast Intl to Boston?

    Yes. Cheapflights offers flight deals from Belfast Intl to Boston by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

See more FAQs

Traveling to a place near Boston?

Book flights to Boston if you plan to visit one of these locations
Cambridge
Medford
Hampton Beach
Watertown
Seekonk
Brockton
Warwick
Seabrook
Cranston
Lincoln
Lowell
Smithfield
Peabody
Quincy
York Beach
Londonderry
Swansea
Old Orchard Beach
Waltham
Chelsea

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

Alternative routes for Belfast Intl to Boston

See prices for flight routes from nearby airports that may be better suited for you.
Belfast City to Boston flights

100% Free

Cheapflights is completely free to use, so you can start saving the moment you arrive.

Book with Flexibility

Our users can plan ahead with confidence and find flights with no change fees

Travel Smart

Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.