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Cheap flights from Belfast to Boston from £375

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Belfast to Boston departing on 25/9. 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
1 adult, Economy, 0 bags

Find the cheapest flights from Belfast to Boston

Cheap return flights

Enter your travel dates to find the best prices.
Multiple Airlines Logo
06:15 - 18:50BFS  Belfast Intl-BOS Boston Logan Intl
17h 35m2 stops London Gatwick Reykjavik Keflavik Intl
Multiple Airlines Logo
23:00 - 21:05BOS  Boston Logan Intl-BFS Belfast Intl
17h 05m2 stops Reykjavik Keflavik Intl London Gatwick
£591Multiple Airlines
Tue, 1 Sep - Tue, 8 Sep
Multiple Airlines Logo
08:15 - 21:45BFS  Belfast Intl-BOS Boston Logan Intl
18h 30m2 stops London Gatwick Reykjavik Keflavik Intl
Multiple Airlines Logo
23:00 - 19:40BOS  Boston Logan Intl-BFS Belfast Intl
15h 40m2 stops Reykjavik Keflavik Intl London Gatwick
£592Multiple Airlines
Wed, 30 Sep - Wed, 7 Oct
KLM Logo
09:50 - 13:19BHD  Belfast City-BOS Boston Logan Intl
32h 29m1 stop Amsterdam Schiphol
KLM Logo
16:40 - 09:20BOS  Boston Logan Intl-BHD Belfast City
11h 40m1 stop Amsterdam Schiphol
£594KLM
Mon, 14 Sep - Mon, 21 Sep
Multiple Airlines Logo
06:10 - 19:35BFS  Belfast Intl-BOS Boston Logan Intl
18h 25m2 stops London Gatwick Paris Charles de Gaulle
Multiple Airlines Logo
17:10 - 20:25BOS  Boston Logan Intl-BFS Belfast Intl
22h 15m2 stops Paris Charles de Gaulle London Gatwick
£600Multiple Airlines
Mon, 14 Sep - Mon, 21 Sep
Multiple Airlines Logo
06:10 - 14:02BFS  Belfast Intl-BOS Boston Logan Intl
36h 52m3 stops London Gatwick Montreal Pierre Elliott Trudeau Intl Toronto Island
Multiple Airlines Logo
20:50 - 23:10BOS  Boston Logan Intl-BFS Belfast Intl
21h 20m3 stops Reykjavik Keflavik Intl Dublin Newcastle upon Tyne
£601Multiple Airlines
Mon, 14 Sep - Mon, 21 Sep
Multiple Airlines Logo
21:10 - 20:55BFS  Belfast Intl-BOS Boston Logan Intl
28h 45m3 stops London Gatwick Ottawa Toronto Island
Multiple Airlines Logo
20:50 - 23:20BOS  Boston Logan Intl-BFS Belfast Intl
21h 30m3 stops Reykjavik Keflavik Intl Dublin London Stansted
£603Multiple Airlines
Thu, 10 Sep - Mon, 14 Sep
Multiple Airlines Logo
21:10 - 20:55BFS  Belfast Intl-BOS Boston Logan Intl
28h 45m3 stops London Gatwick Ottawa Toronto Island
Multiple Airlines Logo
20:50 - 20:40BOS  Boston Logan Intl-BFS Belfast Intl
18h 50m2 stops Reykjavik Keflavik Intl Glasgow Intl
£607Multiple Airlines
Thu, 10 Sep - Mon, 14 Sep
Delta Logo
09:50 - 16:35BHD  Belfast City-BOS Boston Logan Intl
11h 45m1 stop Amsterdam Schiphol
Delta Logo
13:32 - 09:20BOS  Boston Logan Intl-BHD Belfast City
14h 48m2 stops New York John F Kennedy Intl Amsterdam Schiphol
£608Delta
Fri, 11 Sep - Tue, 15 Sep
Delta Logo
09:50 - 16:35BHD  Belfast City-BOS Boston Logan Intl
11h 45m1 stop Amsterdam Schiphol
Delta Logo
09:20 - 09:20BOS  Boston Logan Intl-BHD Belfast City
19h 00m2 stops New York John F Kennedy Intl Amsterdam Schiphol
£609Delta
Fri, 18 Sep - Wed, 23 Sep
British Airways Logo
06:30 - 16:55BHD  Belfast City-BOS Boston Logan Intl
15h 25m2 stops London Heathrow New York John F Kennedy Intl
British Airways Logo
21:50 - 12:55BOS  Boston Logan Intl-BHD Belfast City
10h 05m1 stop London Heathrow
£612British Airways
Mon, 14 Sep - Mon, 21 Sep

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British Airways flights from Belfast to Boston

Our best British Airways deals on Belfast to Boston flight tickets
British Airways
14 Sept
BHD06:30Belfast City
15h 25m
2 stops
BOS16:55Boston Logan Intl
21 Sept
BOS21:50Boston Logan Intl
10h 05m
1 stop
BHD12:55Belfast City
£612
British Airways
18 Sept
BHD09:35Belfast City
12h 30m
1 stop
BOS17:05Boston Logan Intl
23 Sept
BOS17:28Boston Logan Intl
13h 32m
2 stops
BHD12:00Belfast City
£625
British Airways
18 Sept
BHD09:35Belfast City
12h 30m
1 stop
BOS17:05Boston Logan Intl
23 Sept
BOS17:28Boston Logan Intl
13h 32m
2 stops
BHD12:00Belfast City
£626

KLM flights from Belfast to Boston

Our best KLM deals on Belfast to Boston flight tickets
KLM
14 Sept
BHD09:50Belfast City
32h 29m
1 stop
BOS13:19Boston Logan Intl
21 Sept
BOS16:40Boston Logan Intl
11h 40m
1 stop
BHD09:20Belfast City
£594
KLM
14 Sept
BHD09:50Belfast City
18h 20m
2 stops
BOS23:10Boston Logan Intl
21 Sept
BOS21:20Boston Logan Intl
31h 00m
2 stops
BHD09:20Belfast City
£615
KLM
18 Sept
BHD09:50Belfast City
18h 20m
2 stops
BOS23:10Boston Logan Intl
23 Sept
BOS20:25Boston Logan Intl
15h 30m
1 stop
BHD16:55Belfast City
£634

momondo Fare Finder

 
Customise your flight search to find flights from Belfast 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, momondo users made 279,928 searches. Data last updated 18 August 2026.
Use the filters below to find and compare flights from Belfast to Boston that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest return flight

BelfastBoston

BFS Belfast Intl - BOS Boston Logan Intl

BFSBOS

Belfast Intl

Tue 1/9

06:15-18:50

2 stops17h 35m

Boston Logan Intl

Tue 8/9

23:00-21:05

2 stops17h 05m

£591

BelfastBoston

BFS Belfast Intl - BOS Boston Logan Intl

BFSBOS

Belfast Intl

Wed 30/9

08:15-21:45

2 stops18h 30m

Boston Logan Intl

Wed 7/10

23:00-19:40

2 stops15h 40m

£592

BelfastBoston

BHD Belfast City - BOS Boston Logan Intl

BHDBOS

Belfast City

Mon 14/9

09:50-13:19

1 stop32h 29m

Boston Logan Intl

Mon 21/9

16:40-09:20

1 stop11h 40m

£594

BelfastBoston

BFS Belfast Intl - BOS Boston Logan Intl

BFSBOS

Belfast Intl

Mon 14/9

06:10-19:35

2 stops18h 25m

Boston Logan Intl

Mon 21/9

17:10-20:25

2 stops22h 15m

£600

BelfastBoston

BFS Belfast Intl - BOS Boston Logan Intl

BFSBOS

Belfast Intl

Mon 14/9

06:10-14:02

3 stops36h 52m

Boston Logan Intl

Mon 21/9

20:50-23:10

3 stops21h 20m

£601

BelfastBoston

BFS Belfast Intl - BOS Boston Logan Intl

BFSBOS

Belfast Intl

Thu 10/9

21:10-20:55

3 stops28h 45m

Boston Logan Intl

Mon 14/9

20:50-23:20

3 stops21h 30m

£603

BelfastBoston

BFS Belfast Intl - BOS Boston Logan Intl

BFSBOS

Belfast Intl

Thu 10/9

21:10-20:55

3 stops28h 45m

Boston Logan Intl

Mon 14/9

20:50-20:40

2 stops18h 50m

£607

BelfastBoston

BHD Belfast City - BOS Boston Logan Intl

BHDBOS

Belfast City

Fri 11/9

09:50-16:35

1 stop11h 45m

Boston Logan Intl

Tue 15/9

13:32-09:20

2 stops14h 48m

£608

BelfastBoston

BHD Belfast City - BOS Boston Logan Intl

BHDBOS

Belfast City

Fri 18/9

09:50-16:35

1 stop11h 45m

Boston Logan Intl

Wed 23/9

09:20-09:20

2 stops19h 00m

£609
Fastest return journey

BelfastBoston

BHD Belfast City - BOS Boston Logan Intl

BHDBOS

Belfast City

Mon 14/9

06:30-16:55

2 stops15h 25m

Boston Logan Intl

Mon 21/9

21:50-12:55

1 stop10h 05m

£612

Flights are sorted by cheapest return flights first.

Showing 1-10 of 19 resultsSorted by cheapest first
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See travel insights to Boston from

How to get the cheapest flight ticket from Belfast to Boston

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 airline that flies from Belfast to Boston Logan Intl?

British Airways is the most popular carrier operating from Belfast to Boston Logan Intl

Cheap Belfast to Boston flight deals and tips

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

Best price found

£375

Fastest flight time

11h 45m

Direct flights

None
The best one-way flight to Boston from Belfast in the past 72 hours is £375. The best return flight deal from Belfast to Boston found on momondo in the last 72 hours is £591.
The fastest flight from Belfast to Boston takes 11h 45m
There are no direct flights from Belfast to Boston. There are no popular flight routes from Belfast to Boston.
Search flight deals

Frequently asked questions about flying from Belfast to Boston

  • How far is Belfast to Boston Logan Intl by plane?

    The straight-line distance from Belfast to Boston Logan Intl is 2981.1 mi. By plane, this route typically takes 11h 45m.

  • When did momondo last update prices for flights from Belfast to Boston Logan Intl Airport?

    Prices for flights from Belfast to Boston Logan Intl Airport refresh daily.

  • How old do you have to be to fly from Belfast to Boston Logan Intl Airport?

    The minimum age a child must be to fly alone is five but airlines that offer an unaccompanied minor (UNMR) service will have their own age restrictions, including rules around flight length, timings, and stopovers. We always recommend checking with the individual airline you are booking with to travel from Belfast to Boston Logan Intl Airport.

  • What documentation or ID do you need to fly to Boston Logan Intl Airport?

    The necessary travel and health documents for your Boston Logan Intl Airport trip may vary depending on your travel plans and individual circumstances. Generally, you should have various documents, such as a national ID card or driver's license and a passport that is valid for six months beyond your scheduled arrival date. We recommend seeking advice from your airline or a trusted third party, such as IATA.

Travelling to a place near Boston?

Book flights to Boston if you plan to visit one of these locations
Salem
Cambridge
Waltham
Braintree
Dedham
Chelsea
Brookline
Plymouth
Foxborough
Weymouth
Falmouth
Woburn
Burlington
Marlborough
Randolph
York Beach
Needham
Quincy
Framingham
Amherst

Why use momondo?

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

momondo compares prices from hundreds of airlines and agents so you can find and book the best deal on flights from Belfast to Boston . Millions of users trust and use momondo every year so you are in good hands.

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

Yes. momondo enables you to select and highlight flights to Boston from Belfast with this policy.

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

momondo provides multiple filters to help you find the best flight to Boston from Belfast. Filter by price, airline, airports, cabin, aircraft, payment method, number of stops and more.

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

Price alerts on flights to Boston from Belfast 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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