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

Delta, Aer Lingus, 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.

£235 Cheap Flights from Boston to Belfast in 2025/26

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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.

19:55 - 10:30BOS-BHD

10h 35m1 stop

06:45 - 20:45BHD-BOS

18h 00m1 stop

£447British Airways

Find Deal

Fri, 13 Mar - Fri, 20 Mar

19:39 - 14:15BOS-BHD

14h 36m2 stops

08:45 - 16:55BHD-BOS

12h 10m1 stop

£466American Airlines

Find Deal

Fri, 13 Mar - Fri, 20 Mar

17:18 - 10:20BOS-BHD

36h 02m2 stops

18:00 - 14:20BHD-BOS

25h 20m1 stop

£469British Airways

Find Deal

Sat, 31 Jan - Sat, 7 Feb

19:39 - 14:15BOS-BHD

14h 36m2 stops

11:30 - 22:59BHD-BOS

15h 29m2 stops

£474American Airlines

Find Deal

Fri, 13 Mar - Fri, 20 Mar

07:30 - 09:10BOS-BHD

20h 40m1 stop

11:35 - 19:45BHD-BOS

13h 10m1 stop

£490British Airways

Find Deal

Sat, 31 Jan - Sat, 7 Feb

20:45 - 16:55BOS-BHD

15h 10m2 stops

06:30 - 16:30BHD-BOS

15h 00m1 stop

£542Delta

Find Deal

Sun, 29 Mar - Wed, 1 Apr

20:45 - 16:55BOS-BHD

15h 10m2 stops

06:30 - 13:35BHD-BOS

12h 05m1 stop

£583Delta

Find Deal

Sun, 29 Mar - Wed, 1 Apr

19:50 - 22:55BOS-BFS

22h 05m3 stops

07:55 - 19:55BFS-BOS

41h 00m3 stops

£808Multiple Airlines

Find Deal

Mon, 29 Dec - Wed, 31 Dec

22:10 - 20:15BOS-BFS

17h 05m2 stops

07:55 - 19:55BFS-BOS

41h 00m3 stops

£823Multiple Airlines

Find Deal

Mon, 29 Dec - Wed, 31 Dec

19:05 - 16:50BOS-BHD

16h 45m1 stop

17:20 - 13:30BHD-BOS

25h 10m1 stop

£1,904KLM

Find Deal

Tue, 23 Dec - Sat, 3 Jan

Delta flights from Boston to Belfast

Our best Delta deals on Boston to Belfast flight tickets

Delta

29 Mar

BOS20:45Boston Logan Intl

15h 10m

2 stops

BHD16:55Belfast City

1 Apr

BHD06:30Belfast City

15h 00m

1 stop

BOS16:30Boston Logan Intl

£542

Find similar

Delta

29 Mar

BOS20:45Boston Logan Intl

15h 10m

2 stops

BHD16:55Belfast City

1 Apr

BHD06:30Belfast City

12h 05m

1 stop

BOS13:35Boston Logan Intl

£583

Find similar

British Airways flights from Boston to Belfast

Our best British Airways deals on Boston to Belfast flight tickets

British Airways

14 Nov

BOS16:50Boston Logan Intl

21h 25m

2 stops

BHD19:15Belfast City

16 Nov

BHD09:10Belfast City

10h 10m

1 stop

BOS14:20Boston Logan Intl

£444

Find similar

British Airways

13 Mar

BOS19:55Boston Logan Intl

10h 35m

1 stop

BHD10:30Belfast City

20 Mar

BHD06:45Belfast City

18h 00m

1 stop

BOS20:45Boston Logan Intl

£447

Find similar

British Airways

31 Jan

BOS17:18Boston Logan Intl

36h 02m

2 stops

BHD10:20Belfast City

7 Feb

BHD18:00Belfast City

25h 20m

1 stop

BOS14:20Boston Logan Intl

£469

Find similar

Fly from

Fly to

Route

Depart

Return

Price

BostonBelfast

BOS - BHD

BOSBHD

Boston Logan Intl

Fri 13/3

19:55-10:30

1 stop10h 35m

Belfast City

Fri 20/3

06:45-20:45

1 stop18h 00m

£447

BostonBelfast

BOS - BHD

BOSBHD

Boston Logan Intl

Fri 13/3

19:39-14:15

2 stops14h 36m

Belfast City

Fri 20/3

08:45-16:55

1 stop12h 10m

£466

BostonBelfast

BOS - BHD

BOSBHD

Boston Logan Intl

Sat 31/1

17:18-10:20

2 stops36h 02m

Belfast City

Sat 7/2

18:00-14:20

1 stop25h 20m

£469

BostonBelfast

BOS - BHD

BOSBHD

Boston Logan Intl

Fri 13/3

19:39-14:15

2 stops14h 36m

Belfast City

Fri 20/3

11:30-22:59

2 stops15h 29m

£474

BostonBelfast

BOS - BHD

BOSBHD

Boston Logan Intl

Sat 31/1

07:30-09:10

1 stop20h 40m

Belfast City

Sat 7/2

11:35-19:45

1 stop13h 10m

£490

BostonBelfast

BOS - BHD

BOSBHD

Boston Logan Intl

Sun 29/3

20:45-16:55

2 stops15h 10m

Belfast City

Wed 1/4

06:30-16:30

1 stop15h 00m

£542

BostonBelfast

BOS - BHD

BOSBHD

Boston Logan Intl

Sun 29/3

20:45-16:55

2 stops15h 10m

Belfast City

Wed 1/4

06:30-13:35

1 stop12h 05m

£583

BostonBelfast

BOS - BFS

BOSBFS

Boston Logan Intl

Mon 29/12

19:50-22:55

3 stops22h 05m

Belfast Intl

Wed 31/12

07:55-19:55

3 stops41h 00m

£808

BostonBelfast

BOS - BFS

BOSBFS

Boston Logan Intl

Mon 29/12

22:10-20:15

2 stops17h 05m

Belfast Intl

Wed 31/12

07:55-19:55

3 stops41h 00m

£823

BostonBelfast

BOS - BHD

BOSBHD

Boston Logan Intl

Tue 23/12

19:05-16:50

1 stop16h 45m

Belfast City

Sat 3/1

17:20-13:30

1 stop25h 10m

£1,904

Flights are sorted by cheapest return flights first.

Showing 1-10 of 20 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 £469, 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 August is also cheap. Prices for this month can be found on momondo for an average of £490.

What is the cheapest time of day to depart on your flight to Belfast?

The cheapest time of day to fly to Belfast is in the evening when flights can be purchased for as low as £482. Flights to Belfast are more costly in the afternoon, with an average ticket price of £483. Departure times in the afternoon fall within the peak daily travel times, which is why tickets can be more expensive.

Cheap Boston to Belfast flight deals and tips

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

Direct flights	None

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

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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 35m 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.