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Cheap flights from Massachusetts to Belfast from £236

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Massachusetts to Belfast departing on 11/9. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
1 adult
0 bags
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Find the cheapest flights from Massachusetts to Belfast

Cheap return flights

Enter your travel dates to find the best prices.
Multiple Airlines Logo
05:50 - 19:50
BOS
-
BFS
33h 00m
3 stops
Multiple Airlines Logo
05:55 - 18:22
BFS
-
BOS
17h 27m
2 stops
£628Multiple Airlines
Tue, 9 Jun - Tue, 23 Jun
Multiple Airlines Logo
10:45 - 19:50
BOS
-
BFS
28h 05m
2 stops
Multiple Airlines Logo
05:55 - 22:38
BFS
-
BOS
21h 43m
2 stops
£632Multiple Airlines
Tue, 9 Jun - Tue, 23 Jun
Multiple Airlines Logo
05:50 - 19:50
BOS
-
BFS
33h 00m
3 stops
Multiple Airlines Logo
05:55 - 21:27
BFS
-
BOS
20h 32m
3 stops
£633Multiple Airlines
Tue, 9 Jun - Tue, 23 Jun
Multiple Airlines Logo
20:50 - 21:30
BOS
-
BFS
20h 40m
3 stops
Multiple Airlines Logo
07:40 - 14:40
BFS
-
BOS
36h 00m
3 stops
£634Multiple Airlines
Sun, 25 Oct - Wed, 4 Nov
Multiple Airlines Logo
20:50 - 23:05
BOS
-
BFS
21h 15m
2 stops
Multiple Airlines Logo
09:10 - 14:45
BFS
-
BOS
34h 35m
2 stops
£640Multiple Airlines
Thu, 1 Oct - Mon, 5 Oct
Multiple Airlines Logo
20:50 - 19:30
BOS
-
BFS
17h 40m
2 stops
Multiple Airlines Logo
08:40 - 14:45
BFS
-
BOS
35h 05m
3 stops
£652Multiple Airlines
Thu, 1 Oct - Mon, 5 Oct
British Airways Logo
22:35 - 13:55
BOS
-
BHD
11h 20m
1 stop
British Airways Logo
15:40 - 21:55
BHD
-
BOS
11h 15m
1 stop
£655British Airways
Sun, 25 Oct - Wed, 4 Nov
British Airways Logo
19:30 - 10:30
BOS
-
BHD
10h 00m
1 stop
British Airways Logo
06:30 - 20:10
BHD
-
BOS
18h 40m
1 stop
£662British Airways
Sun, 16 Aug - Sun, 30 Aug
British Airways Logo
21:50 - 15:30
BOS
-
BHD
12h 40m
1 stop
British Airways Logo
06:30 - 17:00
BHD
-
BOS
15h 30m
1 stop
£665British Airways
Thu, 1 Oct - Mon, 5 Oct
Aer Lingus Logo
10:49 - 17:20
BDL
-
BHD
25h 31m
3 stops
Aer Lingus Logo
07:00 - 23:59
BHD
-
BDL
21h 59m
3 stops
£1,341Aer Lingus
Fri, 5 Jun - Fri, 12 Jun

British Airways flights from Massachusetts to Belfast

Our best British Airways deals on Massachusetts to Belfast flight tickets
British Airways
25 Oct
BOS22:35Boston Logan Intl
11h 20m
1 stop
BHD13:55Belfast City
4 Nov
BHD15:40Belfast City
11h 15m
1 stop
BOS21:55Boston Logan Intl
£655
British Airways
16 Aug
BOS19:30Boston Logan Intl
10h 00m
1 stop
BHD10:30Belfast City
30 Aug
BHD06:30Belfast City
18h 40m
1 stop
BOS20:10Boston Logan Intl
£662
British Airways
1 Oct
BOS21:50Boston Logan Intl
12h 40m
1 stop
BHD15:30Belfast City
5 Oct
BHD06:30Belfast City
15h 30m
1 stop
BOS17:00Boston Logan Intl
£665

KLM flights from Massachusetts to Belfast

Our best KLM deals on Massachusetts to Belfast flight tickets
KLM
4 Jul
BOS17:05Boston Logan Intl
35h 15m
2 stops
BHD09:20Belfast City
9 Jul
BHD17:30Belfast City
24h 48m
1 stop
BOS13:18Boston Logan Intl
£808
KLM
4 Jul
BOS17:05Boston Logan Intl
35h 15m
2 stops
BHD09:20Belfast City
9 Jul
BHD09:50Belfast City
17h 53m
2 stops
BOS22:43Boston Logan Intl
£809
KLM
27 May
BOS20:25Boston Logan Intl
15h 30m
1 stop
BHD16:55Belfast City
1 Jun
BHD09:50Belfast City
32h 15m
1 stop
BOS13:05Boston Logan Intl
£839

momondo 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, momondo users made 279,928 searches. Data last updated 13 May 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 9/6

05:50-19:50

3 stops33h 00m

Belfast Intl

Tue 23/6

05:55-18:22

2 stops17h 27m

£628

BostonBelfast

BOS - BFS

BOSBFS

Boston Logan Intl

Tue 9/6

10:45-19:50

2 stops28h 05m

Belfast Intl

Tue 23/6

05:55-22:38

2 stops21h 43m

£632

BostonBelfast

BOS - BFS

BOSBFS

Boston Logan Intl

Tue 9/6

05:50-19:50

3 stops33h 00m

Belfast Intl

Tue 23/6

05:55-21:27

3 stops20h 32m

£633

BostonBelfast

BOS - BFS

BOSBFS

Boston Logan Intl

Sun 25/10

20:50-21:30

3 stops20h 40m

Belfast Intl

Wed 4/11

07:40-14:40

3 stops36h 00m

£634

BostonBelfast

BOS - BFS

BOSBFS

Boston Logan Intl

Thu 1/10

20:50-23:05

2 stops21h 15m

Belfast Intl

Mon 5/10

09:10-14:45

2 stops34h 35m

£640

BostonBelfast

BOS - BFS

BOSBFS

Boston Logan Intl

Thu 1/10

20:50-19:30

2 stops17h 40m

Belfast Intl

Mon 5/10

08:40-14:45

3 stops35h 05m

£652
Fastest return journey

BostonBelfast

BOS - BHD

BOSBHD

Boston Logan Intl

Sun 25/10

22:35-13:55

1 stop11h 20m

Belfast City

Wed 4/11

15:40-21:55

1 stop11h 15m

£655

BostonBelfast

BOS - BHD

BOSBHD

Boston Logan Intl

Sun 16/8

19:30-10:30

1 stop10h 00m

Belfast City

Sun 30/8

06:30-20:10

1 stop18h 40m

£662

BostonBelfast

BOS - BHD

BOSBHD

Boston Logan Intl

Thu 1/10

21:50-15:30

1 stop12h 40m

Belfast City

Mon 5/10

06:30-17:00

1 stop15h 30m

£665

HartfordBelfast

BDL - BHD

BDLBHD

Hartford Bradley Intl

Fri 5/6

10:49-17:20

3 stops25h 31m

Belfast City

Fri 12/6

07:00-23:59

3 stops21h 59m

£1,341

Flights are sorted by cheapest return flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
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See travel insights to Belfast from

How to get the cheapest flight ticket from Massachusetts to Belfast

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

What is the cheapest month to fly to Belfast?

The cheapest month to fly to Belfast from Massachusetts is in February. Flight prices, which tend to average around £0, are often lower during this time because this is during the off-season. If you aren’t able to travel to Belfast during the month of February, then flying in March is also cheap. Prices for this month can be found on momondo for an average of £379.

Cheap Massachusetts to Belfast flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Massachusetts to Belfast

Fastest flight time

10h 45m

Direct flights

None
The fastest flight from Massachusetts to Belfast takes 10h 45m
There are no direct flights from Massachusetts to Belfast. There are no popular flight routes from Massachusetts to Belfast.
Search flight deals

Frequently asked questions about flying from Massachusetts to Belfast

  • When did momondo last update prices for flights from Massachusetts to Belfast?

    Prices for flights from Massachusetts to Belfast were last updated today.

  • How old do you have to be to fly from Massachusetts to Belfast?

    The minimum age for a child to fly alone is five, but airlines that offer an unaccompanied minor (UNMR) service may have their own age limitations. Flight duration, scheduling, and layovers are among the considerations that may influence age limits. We recommend that you double-check with the airline you are booking with for travel from Massachusetts to Belfast.

  • What documentation or ID do you need to fly to Belfast?

    The required travel and health documents for your Belfast trip may vary depending on your itinerary and personal circumstances. As a general rule, you should carry multiple documents, including a national ID card or driver's license and a passport valid for six months after your intended arrival at Belfast. We recommend that you seek guidance from your airline or a reliable third party such as IATA.

Why use momondo?

Why should I use momondo to find a flight deal from Massachusetts to Belfast?

We help find the flight that best suits your needs, momondo compares prices from hundreds of airlines and travel agents and helps you filter them to find the best flight from Massachusetts to Belfast for you.

Can I find flights from Massachusetts to Belfast with flexible booking policies on momondo?

Yes. momondo allows you to filter the results for Massachusetts to Belfast flights to just show those with flexible booking policies.

How can momondo help me find flights from Massachusetts to Belfast?

momondo offers useful filters to help you find the right flight. Choose specific flight times, airports or even what payment method you prefer. We have numerous options to help you book your ideal flight from Massachusetts to Belfast.

I’m not ready to book a flight from Massachusetts to Belfast right now. Can momondo alert me if prices change?

Price alerts on flights to Belfast from Massachusetts are quick and easy to set up on momondo. Simply perform a search and select the price alert feature. It is as simple as that.

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Find better results for your trip to the United Kingdom

Fly into one of these airports located in Belfast

Airports listed have a maximum distance of 12.2 mi from Belfast
Belfast Intl Airport
Belfast City Airport