HomeSearch by dateVacation packagesHotelsFlight dealsCar rentalTravel tips & news
Belfast Intl

$236+ Cheap flights from Massachusetts to Belfast Intl (BFS)

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 9/15. Fares are subject to change and may not be available on all flights or dates of travel.
BOS — BFS
Aug 22 — Aug 291
Fri 8/22
Fri 8/29
1 adult, Economy
We work with more than 300 partners to bring you better travel deals

Find cheap flights from Massachusetts to Belfast Intl 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 Massachusetts to Belfast Intl

Keep the following information in mind while searching for Massachusetts to Belfast Intl flight deals. Data was last updated August 17, 2025.

Round-trip from

$597
(Mytrip)

One-way from

$236
(Trip.com)

Popular in

December

Cheapest in

February

Average price

$669
From Massachusetts to Belfast Intl
Search Deals
One-way flight from Massachusetts to Belfast Intl
Search Deals
Highest demand for flights based on searches. 12% potential increase in price ($106 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 3% potential price decrease ($25 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in August 2025
Search Deals

Find flight deals from Massachusetts to Belfast Intl

Cheapest flights from Massachusetts to Belfast Intl
Explore the most affordable flight options available from Massachusetts to Belfast Intl. Find the lowest fares from popular airlines and budget airlines, with prices last updated on August 17, 2025.

This Mytrip deal was found by Cheapflights users on 8/14. 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 9/298:05 pmBOS - BFS
2 stops22h 45mMultiple Airlines
Mon 10/65:30 pmBFS - BOS
2 stops26h 55mMultiple Airlines
Deal found 8/14$597
This Mytrip deal was found by Cheapflights users on 8/16. 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.
Tue 9/305:30 pmBOS - BFS
2 stops16h 30mMultiple Airlines
Tue 10/77:05 amBFS - BOS
2 stops16h 40mMultiple Airlines
Deal found 8/16$601
This Mytrip deal was found by Cheapflights users on 8/16. 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 9/158:50 pmBOS - BFS
2 stops20h 40mMultiple Airlines
Mon 9/229:00 pmBFS - BOS
3 stops28h 05mMultiple Airlines
Deal found 8/16$649
This Kiwi.com deal was found by Cheapflights users on 8/16. 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.
Mon 8/2510:00 pmBOS - BFS
1 stop11h 20mMultiple Airlines
Tue 9/97:25 amBFS - BOS
2 stops35h 23mMultiple Airlines
Deal found 8/16$833
This Kiwi.com deal was found by Cheapflights users on 8/16. 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.
Mon 8/187:10 pmBOS - BFS
1 stop14h 10mMultiple Airlines
Tue 9/210:55 pmBFS - BOS
2 stops23h 55mMultiple Airlines
Deal found 8/16$849
This Mytrip deal was found by Cheapflights users on 8/15. 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.
Sat 8/165:50 pmBOS - BFS
2 stops16h 40mMultiple Airlines
Sat 8/238:30 amBFS - BOS
2 stops14h 10mMultiple Airlines
Deal found 8/15$1,230

Cheapflights Fare Finder

 
Customize your flight search to find flights from Massachusetts to Belfast Intl 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 August 17, 2025.
Use the filters below to find and compare flights from Massachusetts to Belfast Intl Airport that are best for you.

Fly from

Massachusetts

Fly to

Belfast Intl

Route

Depart

Return

Price

BostonBelfast

BOS - BFS

BOSBFS

Boston Logan Intl

Mon 9/29

8:05 pm-11:50 pm

2 stops22h 45m

Belfast Intl

Mon 10/6

5:30 pm-3:25 pm

2 stops26h 55m

$597

BostonBelfast

BOS - BFS

BOSBFS

Boston Logan Intl

Tue 9/30

5:30 pm-3:00 pm

2 stops16h 30m

Belfast Intl

Tue 10/7

7:05 am-6:45 pm

2 stops16h 40m

$601

BostonBelfast

BOS - BFS

BOSBFS

Boston Logan Intl

Mon 9/15

8:50 pm-10:30 pm

2 stops20h 40m

Belfast Intl

Mon 9/22

9:00 pm-8:05 pm

3 stops28h 05m

$649

BostonBelfast

BOS - BFS

BOSBFS

Boston Logan Intl

Mon 9/15

9:25 pm-4:10 pm

2 stops13h 45m

$236

Flights are sorted by cheapest round-trip flights first.

Deals found on 8/15

Best time to book a flight from Massachusetts to Belfast Intl

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

What is the cheapest month to book a flight from Massachusetts to Belfast Intl Airport?

Currently, February is the cheapest month in which you can book a flight from Massachusetts to Belfast Intl Airport (average of $657). Flying from Massachusetts to Belfast Intl Airport in June is currently the most expensive (average of $1,189). 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.

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

Related info for your journey

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

  • What are the most popular routes from Massachusetts to Belfast Intl Airport?

    The most popular flight routes from Massachusetts to Belfast Intl Airport are Boston Logan Intl - Belfast Intl, Hartford Bradley Intl - Belfast Intl and Worcester - Belfast Intl.

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

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

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

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

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

    Yes. Cheapflights offers flight deals from Massachusetts to Belfast Intl 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 Massachusetts to Belfast Intl Airport?

    Currently, February is the cheapest month in which you can book a flight from Massachusetts to Belfast Intl Airport (average of $657). Flying from Massachusetts to Belfast Intl Airport in June is currently the most expensive (average of $1,189). 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

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 Massachusetts to Belfast Intl

See prices for flight routes from nearby airports that may be better suited for you.
Los Angeles to Belfast Intl flights
John F Kennedy Intl to Belfast Intl flights
Los Angeles to Belfast City flights
Boston to Belfast Intl flights
John F Kennedy Intl to Belfast City flights
O'Hare Intl to Belfast Intl flights
Boston to Belfast City flights
Newark to Belfast Intl flights
Newark to Belfast City flights
LaGuardia to Belfast City flights
LaGuardia to Belfast Intl flights
Hobby to Belfast City flights
O'Hare Intl to Belfast City flights
Hobby to Belfast Intl flights
San Francisco to Belfast Intl flights
Seattle to Belfast Intl flights
Dallas/Fort Worth to Belfast Intl flights
Seattle to Belfast City flights
Tampa to Belfast City flights
Dulles Intl to Belfast City flights
Dulles Intl to Belfast Intl flights
Dallas/Fort Worth to Belfast City flights
San Francisco to Belfast City flights
George Bush Intcntl to Belfast Intl flights
George Bush Intcntl to Belfast City flights
Midway to Belfast City flights
Santa Ana to Belfast Intl flights
Cincinnati to Belfast City flights
Santa Ana to Belfast City flights
Nashville to Belfast Intl flights
Atlanta to Belfast Intl flights
Cleveland to Belfast Intl flights
Reagan-National to Belfast Intl flights
Reagan-National to Belfast City flights
Denver to Belfast Intl flights
Denver to Belfast City flights
Atlanta to Belfast City flights
Philadelphia to Belfast Intl flights
Charlotte to Belfast City flights
Baltimore to Belfast Intl flights
Baltimore to Belfast City flights
Detroit to Belfast Intl flights
Kansas City to Belfast City flights
Charlotte to Belfast Intl flights
Jacksonville to Belfast Intl flights

Top 2 airlines flying from Massachusetts to Belfast Intl

Discover the top 2 airlines that operate flights from Massachusetts to Belfast Intl. 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 August 17, 2025.
AirlineCheapestAverageFlexibilityOn-time
British AirwaysCheapest$565Average$675FlexibilityNo cancel feeOn-time70%
American AirlinesCheapest$586Average$670FlexibilityNo cancel feeOn-time71%

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.