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Cheap flights from Massachusetts to Belfast from £257

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 20/9. Fares are subject to change and may not be available on all flights or dates of travel.
BOS — BHD
9 Aug — 16 Aug1
1 adult
1 adult, Economy, 0 bags

Cheap flight deals from Massachusetts to Belfast

Enter your travel dates to find the best prices.

Cheapest flights from Massachusetts to Belfast
Explore the most affordable flight options available from Massachusetts to Belfast. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 10 July 2026.

Mon 17/820:50
BOS
-
BFS
2 stops21h 30m
Multiple Airlines
Tue 1/907:35
BFS
-
BOS
3 stops36h 10m
Multiple Airlines
Deal found 8/7£530
Tue 1/922:45
BOS
-
BFS
2 stops20h 00m
Multiple Airlines
Sun 6/916:10
BFS
-
BOS
2 stops33h 10m
Multiple Airlines
Deal found 7/7£576
Mon 17/823:00
BOS
-
BFS
3 stops19h 05m
Multiple Airlines
Mon 24/820:35
BFS
-
BOS
3 stops27h 15m
Multiple Airlines
Deal found 5/7£595
Mon 17/817:25
BOS
-
BHD
2 stops18h 25m
Multiple Airlines
Tue 1/917:00
BHD
-
BOS
3 stops32h 20m
Multiple Airlines
Deal found 8/7£613
Wed 28/1020:50
BOS
-
BFS
2 stops18h 45m
Multiple Airlines
Tue 3/1106:00
BFS
-
BOS
3 stops37h 40m
Multiple Airlines
Deal found 7/7£614
Tue 1/920:50
BOS
-
BHD
2 stops16h 00m
Multiple Airlines
Sun 6/907:00
BHD
-
BOS
3 stops31h 05m
Multiple Airlines
Deal found 7/7£619
Mon 10/810:40
BOS
-
BFS
3 stops31h 25m
Multiple Airlines
Tue 18/805:55
BFS
-
BOS
3 stops32h 10m
Multiple Airlines
Deal found 9/7£620
Sun 18/1015:35
BOS
-
BFS
3 stops21h 50m
Multiple Airlines
Sat 24/1009:20
BFS
-
BOS
3 stops35h 20m
Multiple Airlines
Deal found 6/7£621
Wed 19/820:50
BOS
-
BHD
3 stops19h 05m
Multiple Airlines
Wed 26/809:20
BHD
-
BOS
3 stops40h 00m
Multiple Airlines
Deal found 5/7£624
Wed 12/810:40
BOS
-
BFS
3 stops23h 35m
Multiple Airlines
Thu 20/806:40
BFS
-
BOS
2 stops17h 10m
Multiple Airlines
Deal found 9/7£627
Wed 28/1022:30
BOS
-
BHD
1 stop12h 05m
British Airways
Tue 3/1111:25
BHD
-
BOS
1 stop13h 15m
British Airways
Deal found 7/7£646
Sun 18/1021:55
BOS
-
BHD
1 stop11h 40m
British Airways
Sat 24/1009:35
BHD
-
BOS
2 stops17h 19m
British Airways
Deal found 6/7£653

Find flight deals from Massachusetts to Belfast

Keep the following information in mind while searching for Massachusetts to Belfast flight deals. Data was last updated 10 July 2026.

Round-trip from

£530

One-way from

£257

Popular in

November

Cheapest in

March

Average price

£618
17/8-1/9
  • 17/8-1/9
  • 5 total stops
  • 57h 40m total
  • Massachusetts to Belfast
Search Deals
20/9
  • 20/9
  • 2 total stops
  • 22h 00m total
  • Massachusetts to Belfast
Search Deals
Highest demand for flights based on searches. 36% potential increase in price (£314 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 16% potential price decrease (£77 potential savings vs. average return price).
Search Deals
Average for round-trip flights in July 2026
Search Deals

Cheapflights Fare Finder

 
Customise your flight search to find flights from Massachusetts to Belfast 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 858,174 searches. Data last updated 10 July 2026.
Use the filters below to find and compare flights from Massachusetts to Belfast that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest return flight

BostonBelfast

BOS - BFS

BOSBFS

Boston Logan Intl

Tue 1/9

22:45-23:45

2 stops20h 00m

Belfast Intl

Sun 6/9

16:10-20:20

2 stops33h 10m

£576

BostonBelfast

BOS - BFS

BOSBFS

Boston Logan Intl

Mon 17/8

19:10-12:15

1 stop12h 05m

Belfast Intl

Tue 1/9

05:55-18:35

2 stops17h 40m

£598

BostonBelfast

BOS - BHD

BOSBHD

Boston Logan Intl

Wed 19/8

20:50-20:55

3 stops19h 05m

Belfast City

Wed 26/8

09:20-20:20

3 stops40h 00m

£624

BostonBelfast

BOS - BFS

BOSBFS

Boston Logan Intl

Wed 12/8

10:40-15:15

3 stops23h 35m

Belfast Intl

Thu 20/8

06:40-18:50

2 stops17h 10m

£627

BostonBelfast

BOS - BFS

BOSBFS

Boston Logan Intl

Mon 10/8

10:40-23:05

3 stops31h 25m

Belfast Intl

Tue 18/8

22:45-16:03

2 stops22h 18m

£635

BostonBelfast

BOS - BFS

BOSBFS

Boston Logan Intl

Tue 28/7

10:05-19:50

2 stops28h 45m

Belfast Intl

Wed 5/8

22:45-20:55

3 stops27h 10m

£641

BostonBelfast

BOS - BFS

BOSBFS

Boston Logan Intl

Mon 17/8

05:45-11:15

2 stops24h 30m

Belfast Intl

Mon 24/8

06:30-09:45

2 stops32h 15m

£642

BostonBelfast

BOS - BFS

BOSBFS

Boston Logan Intl

Tue 11/8

10:50-19:50

3 stops28h 00m

Belfast Intl

Wed 19/8

07:35-22:38

2 stops20h 03m

£642

BostonBelfast

BOS - BFS

BOSBFS

Boston Logan Intl

Mon 27/7

20:50-23:20

2 stops21h 30m

Belfast Intl

Thu 30/7

21:05-18:50

3 stops26h 45m

£650

BostonBelfast

BOS - BFS

BOSBFS

Boston Logan Intl

Wed 28/10

20:50-22:00

2 stops21h 10m

Belfast Intl

Tue 3/11

08:25-18:55

2 stops15h 30m

£666

Flights are sorted by cheapest return flights first.

Deals found on 7/7

Showing 1-10 of 32 resultsSorted by cheapest first
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Best time to book a flight from Massachusetts to Belfast

Have a flexible travel schedule? Discover the best time to fly to Belfast from Massachusetts with our price prediction graph.
Estimated return 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
No data available for this route at this time. Please check back soon.

Related info for your journey

Find useful and relevant information for your journey from Massachusetts to Belfast. 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 Massachusetts to Belfast?

    A quick flight from Massachusetts to Belfast can take about 15h 13m. British Airways provides one of the quickest options available for as low as £753. The distance from Massachusetts to Belfast is about 3066 mi. This flight may include one or multiple stops.

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

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

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

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

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

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

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

    Yes. Cheapflights offers flight deals from Massachusetts to Belfast 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

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How does Cheapflights help users find flights from Massachusetts to Belfast?

Cheapflights goes through 900+ travel sites to look for the best flight deals for flights from Massachusetts to Belfast. Too many options? Cheapflights also provides filters for things like airlines, price ranges, and number of stops to help you make a decision easily.

Why should you use Cheapflights to find cheap flight tickets from Massachusetts to Belfast?

By finding flights from multiple airlines and providers at completely no cost, Cheapflights helps millions of users like you annually find the best flights to Belfast from Massachusetts.

Can Cheapflights find flights from Massachusetts to Belfast with no change fees?

Need flexible booking options for your flight to Belfast from Massachusetts? Don’t worry, Cheapflights have you covered. Use our search filter to only show flights with no change fees.

Can Cheapflights notify me if prices for flights from Massachusetts to Belfast become cheaper?

Yes, Cheapflights offers price alerts on Massachusetts to Belfast flights so you can book your travel at the perfect time. Price Alerts can be enabled by clicking the bell icon next to the flight deals above and providing your email address where you want to receive the alerts.

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