What is the cheapest airline that flies from Boston Logan Intl to Belfast?

Air France and British Airways are the most popular carriers operating from Boston Logan Intl to Belfast

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

Prices for flights from Boston Logan Intl Airport to Belfast are refreshed on a daily basis.

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

Although the minimum age for a child to fly alone is five, airlines that offer an unaccompanied minor (UMNR) service may have their own age limits, which could be impacted by factors such as flight length, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Boston Logan Intl Airport to Belfast.

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

The travel and health documents required for your trip to Belfast can vary based on your itinerary and personal situation. As a rule, consider having multiple documents such as a national ID card or driver’s license, and a passport valid for six-months after you plan to arrive at Belfast. We always recommend checking with your airline or a trusted third party such as IATA to get advice.

£227 Cheap Flights from Boston to Belfast in 2026

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Find the cheapest flights from Boston to Belfast

Round-trip

One-way

Last minute

Cheap return flights

Enter your travel dates to find the best prices.

18:55 - 10:20

BOS

BHD

10h 25m1 stop

09:05 - 19:45

BHD

BOS

15h 40m1 stop

£505British Airways

Sun, 1 Mar - Thu, 5 Mar

18:55 - 10:20

BOS

BHD

10h 25m1 stop

09:05 - 21:55

BHD

BOS

17h 50m1 stop

£506British Airways

Sun, 1 Mar - Thu, 5 Mar

21:55 - 14:40

BOS

BHD

11h 45m1 stop

06:35 - 20:05

BHD

BOS

18h 30m1 stop

£512British Airways

Sun, 3 May - Thu, 7 May

21:50 - 15:20

BOS

BHD

12h 30m1 stop

09:35 - 22:42

BHD

BOS

18h 07m2 stops

£531British Airways

Tue, 9 Jun - Tue, 16 Jun

09:29 - 10:35

BOS

BHD

20h 06m2 stops

09:35 - 23:53

BHD

BOS

19h 18m2 stops

£533British Airways

Tue, 9 Jun - Tue, 16 Jun

21:55 - 13:25

BOS

BHD

10h 30m1 stop

19:00 - 16:54

BHD

BOS

26h 54m2 stops

£534British Airways

Sun, 19 Apr - Sat, 25 Apr

15:17 - 10:30

BOS

BHD

14h 13m2 stops

19:00 - 16:54

BHD

BOS

26h 54m2 stops

£535British Airways

Sun, 19 Apr - Sat, 25 Apr

21:55 - 13:25

BOS

BHD

10h 30m1 stop

19:00 - 16:19

BHD

BOS

26h 19m2 stops

£570British Airways

Sun, 19 Apr - Sat, 25 Apr

23:30 - 18:50

BOS

BFS

14h 20m2 stops

06:00 - 17:45

BFS

BOS

16h 45m2 stops

£644Multiple Airlines

Sun, 19 Apr - Sat, 25 Apr

23:30 - 18:50

BOS

BFS

14h 20m2 stops

07:40 - 22:38

BFS

BOS

19h 58m3 stops

£663Multiple Airlines

Sun, 19 Apr - Sat, 25 Apr

KLM flights from Boston to Belfast

Our best KLM deals on Boston to Belfast flight tickets

KLM

19 Apr

BOS20:25Boston Logan Intl

31h 55m

1 stop

BHD09:20Belfast City

25 Apr

BHD17:30Belfast City

30h 00m

1 stop

BOS18:30Boston Logan Intl

£759

Find similar

KLM

19 Apr

BOS20:25Boston Logan Intl

31h 55m

1 stop

BHD09:20Belfast City

25 Apr

BHD17:30Belfast City

30h 00m

1 stop

BOS18:30Boston Logan Intl

£760

Find similar

British Airways flights from Boston to Belfast

Our best British Airways deals on Boston to Belfast flight tickets

British Airways

1 Mar

BOS18:55Boston Logan Intl

10h 25m

1 stop

BHD10:20Belfast City

5 Mar

BHD09:05Belfast City

15h 40m

1 stop

BOS19:45Boston Logan Intl

£505

Find similar

British Airways

1 Mar

BOS21:35Boston Logan Intl

11h 20m

1 stop

BHD13:55Belfast City

5 Mar

BHD11:05Belfast City

15h 50m

1 stop

BOS21:55Boston Logan Intl

£506

Find similar

British Airways

3 May

BOS21:55Boston Logan Intl

11h 45m

1 stop

BHD14:40Belfast City

6 May

BHD17:15Belfast City

28h 45m

1 stop

BOS17:00Boston Logan Intl

£512

Find similar

Fly from

Fly to

Route

Depart

Return

Price

BostonBelfast

BOS - BHD

BOSBHD

Boston Logan Intl

Sun 1/3

18:55-10:20

1 stop10h 25m

Belfast City

Thu 5/3

09:05-19:45

1 stop15h 40m

£505

BostonBelfast

BOS - BHD

BOSBHD

Boston Logan Intl

Sun 1/3

18:55-10:20

1 stop10h 25m

Belfast City

Thu 5/3

09:05-21:55

1 stop17h 50m

£506

BostonBelfast

BOS - BHD

BOSBHD

Boston Logan Intl

Sun 3/5

21:55-14:40

1 stop11h 45m

Belfast City

Thu 7/5

06:35-20:05

1 stop18h 30m

£512

BostonBelfast

BOS - BHD

BOSBHD

Boston Logan Intl

Tue 9/6

21:50-15:20

1 stop12h 30m

Belfast City

Tue 16/6

09:35-22:42

2 stops18h 07m

£531

BostonBelfast

BOS - BHD

BOSBHD

Boston Logan Intl

Tue 9/6

09:29-10:35

2 stops20h 06m

Belfast City

Tue 16/6

09:35-23:53

2 stops19h 18m

£533

BostonBelfast

BOS - BHD

BOSBHD

Boston Logan Intl

Sun 19/4

21:55-13:25

1 stop10h 30m

Belfast City

Sat 25/4

19:00-16:54

2 stops26h 54m

£534

BostonBelfast

BOS - BHD

BOSBHD

Boston Logan Intl

Sun 19/4

15:17-10:30

2 stops14h 13m

Belfast City

Sat 25/4

19:00-16:54

2 stops26h 54m

£535

BostonBelfast

BOS - BHD

BOSBHD

Boston Logan Intl

Sun 19/4

21:55-13:25

1 stop10h 30m

Belfast City

Sat 25/4

19:00-16:19

2 stops26h 19m

£570

BostonBelfast

BOS - BFS

BOSBFS

Boston Logan Intl

Sun 19/4

23:30-18:50

2 stops14h 20m

Belfast Intl

Sat 25/4

06:00-17:45

2 stops16h 45m

£644

BostonBelfast

BOS - BFS

BOSBFS

Boston Logan Intl

Sun 19/4

23:30-18:50

2 stops14h 20m

Belfast Intl

Sat 25/4

07:40-22:38

3 stops19h 58m

£663

Flights are sorted by cheapest return flights first.

Showing 1-10 of 16 resultsSorted by cheapest first

How to get the cheapest flight ticket from Boston 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

Prices

Airlines

What is the cheapest month to fly to Belfast?

The cheapest month to fly to Belfast from Boston is in September. Flight prices, which tend to average around £456, 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 September, then flying in March is also cheap. Prices for this month can be found on momondo for an average of £466.

Cheap Boston to Belfast flight deals and tips

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

Fastest flight time	10h 30m
Direct flights	None

The fastest flight from Boston to Belfast takes 10h 30m

There are no direct flights from Boston to Belfast. There are no popular flight routes from Boston to Belfast.

Search flight deals

How far is Boston Logan Intl to Belfast by plane?
Belfast is 2981.1 mi away from Boston Logan Intl. Typically, this will take 10h 30m by plane in normal conditions.
When did momondo last update prices for flights from Boston Logan Intl Airport to Belfast?
Prices for flights from Boston Logan Intl Airport to Belfast are refreshed on a daily basis.
How old do you have to be to fly from Boston Logan Intl Airport to Belfast?
Although the minimum age for a child to fly alone is five, airlines that offer an unaccompanied minor (UMNR) service may have their own age limits, which could be impacted by factors such as flight length, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Boston Logan Intl Airport to Belfast.
What documentation or ID do you need to fly to Belfast?
The travel and health documents required for your trip to Belfast can vary based on your itinerary and personal situation. As a rule, consider having multiple documents such as a national ID card or driver’s license, and a passport valid for six-months after you plan to arrive at Belfast. We always recommend checking with your airline or a trusted third party such as IATA to get advice.

Why use momondo?

Why should I use momondo to find a flight deal from Boston 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 Boston to Belfast for you.

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

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

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

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

If you are simply researching potential flights to Belfast, momondo offers a useful price alert feature which will track prices for flights to Belfast from Boston and alert you when they change.