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

Delta, KLM, and American Airlines 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.

£188 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.

19:10 - 21:00BOS-BHD

20h 50m1 stop

17:20 - 13:20BHD-BOS

25h 00m1 stop

£419Delta

Find Deal

Tue, 18 Nov - Wed, 26 Nov

16:00 - 16:50BOS-BHD

19h 50m2 stops

17:20 - 13:20BHD-BOS

25h 00m1 stop

£422Delta

Find Deal

Mon, 17 Nov - Mon, 24 Nov

19:10 - 16:50BOS-BHD

16h 40m1 stop

06:30 - 18:55BHD-BOS

17h 25m2 stops

£427Multiple Airlines

Find Deal

Tue, 11 Nov - Tue, 18 Nov

16:45 - 16:55BOS-BHD

19h 10m1 stop

17:25 - 13:35BHD-BOS

25h 10m1 stop

£439Multiple Airlines

Find Deal

Wed, 8 Apr - Mon, 13 Apr

07:30 - 09:10BOS-BHD

20h 40m1 stop

11:25 - 19:45BHD-BOS

13h 20m1 stop

£443British Airways

Find Deal

Wed, 19 Nov - Wed, 26 Nov

15:47 - 10:15BOS-BHD

13h 28m2 stops

09:15 - 16:10BHD-BOS

11h 55m1 stop

£446American Airlines

Find Deal

Wed, 12 Nov - Mon, 17 Nov

19:10 - 16:50BOS-BHD

16h 40m1 stop

06:30 - 13:20BHD-BOS

11h 50m1 stop

£457KLM

Find Deal

Thu, 13 Nov - Tue, 18 Nov

15:47 - 10:30BOS-BHD

13h 43m2 stops

10:00 - 20:01BHD-BOS

15h 01m2 stops

£462British Airways

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Tue, 11 Nov - Tue, 18 Nov

07:30 - 09:10BOS-BHD

20h 40m1 stop

11:30 - 22:59BHD-BOS

16h 29m2 stops

£468American Airlines

Find Deal

Wed, 19 Nov - Mon, 24 Nov

19:10 - 21:00BOS-BHD

20h 50m1 stop

06:30 - 16:15BHD-BOS

14h 45m2 stops

£476KLM

Find Deal

Tue, 11 Nov - Sun, 16 Nov

Delta flights from Boston to Belfast

Our best Delta deals on Boston to Belfast flight tickets

Delta

18 Nov

BOS19:10Boston Logan Intl

20h 50m

1 stop

BHD21:00Belfast City

26 Nov

BHD17:20Belfast City

25h 00m

1 stop

BOS13:20Boston Logan Intl

£419

Find similar

Delta

17 Nov

BOS16:00Boston Logan Intl

19h 50m

2 stops

BHD16:50Belfast City

24 Nov

BHD17:20Belfast City

25h 00m

1 stop

BOS13:20Boston Logan Intl

£422

Find similar

Delta

17 Nov

BOS17:00Boston Logan Intl

18h 50m

2 stops

BHD16:50Belfast City

25 Nov

BHD06:30Belfast City

14h 44m

2 stops

BOS16:14Boston Logan Intl

£430

Find similar

British Airways flights from Boston to Belfast

Our best British Airways deals on Boston to Belfast flight tickets

British Airways

19 Nov

BOS07:30Boston Logan Intl

20h 40m

1 stop

BHD09:10Belfast City

26 Nov

BHD11:25Belfast City

13h 20m

1 stop

BOS19:45Boston Logan Intl

£443

Find similar

British Airways

11 Nov

BOS15:47Boston Logan Intl

13h 43m

2 stops

BHD10:30Belfast City

18 Nov

BHD10:00Belfast City

15h 01m

2 stops

BOS20:01Boston Logan Intl

£462

Find similar

British Airways

20 Nov

BOS07:30Boston Logan Intl

19h 00m

1 stop

BHD07:30Belfast City

26 Nov

BHD09:15Belfast City

15h 30m

1 stop

BOS19:45Boston Logan Intl

£473

Find similar

Fly from

Fly to

Route

Depart

Return

Price

BostonBelfast

BOS - BHD

BOSBHD

Boston Logan Intl

Tue 18/11

19:10-21:00

1 stop20h 50m

Belfast City

Wed 26/11

17:20-13:20

1 stop25h 00m

£419

BostonBelfast

BOS - BHD

BOSBHD

Boston Logan Intl

Mon 17/11

16:00-16:50

2 stops19h 50m

Belfast City

Mon 24/11

17:20-13:20

1 stop25h 00m

£422

BostonBelfast

BOS - BHD

BOSBHD

Boston Logan Intl

Tue 11/11

19:10-16:50

1 stop16h 40m

Belfast City

Tue 18/11

06:30-18:55

2 stops17h 25m

£427

BostonBelfast

BOS - BHD

BOSBHD

Boston Logan Intl

Wed 8/4

16:45-16:55

1 stop19h 10m

Belfast City

Mon 13/4

17:25-13:35

1 stop25h 10m

£439

BostonBelfast

BOS - BHD

BOSBHD

Boston Logan Intl

Wed 19/11

07:30-09:10

1 stop20h 40m

Belfast City

Wed 26/11

11:25-19:45

1 stop13h 20m

£443

BostonBelfast

BOS - BHD

BOSBHD

Boston Logan Intl

Wed 12/11

15:47-10:15

2 stops13h 28m

Belfast City

Mon 17/11

09:15-16:10

1 stop11h 55m

£446

BostonBelfast

BOS - BHD

BOSBHD

Boston Logan Intl

Thu 13/11

19:10-16:50

1 stop16h 40m

Belfast City

Tue 18/11

06:30-13:20

1 stop11h 50m

£457

BostonBelfast

BOS - BHD

BOSBHD

Boston Logan Intl

Tue 11/11

15:47-10:30

2 stops13h 43m

Belfast City

Tue 18/11

10:00-20:01

2 stops15h 01m

£462

BostonBelfast

BOS - BHD

BOSBHD

Boston Logan Intl

Wed 19/11

07:30-09:10

1 stop20h 40m

Belfast City

Mon 24/11

11:30-22:59

2 stops16h 29m

£468

BostonBelfast

BOS - BHD

BOSBHD

Boston Logan Intl

Tue 11/11

19:10-21:00

1 stop20h 50m

Belfast City

Sun 16/11

06:30-16:15

2 stops14h 45m

£476

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 £463, 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 £484.

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 £476. Flights to Belfast are more costly in the afternoon, with an average ticket price of £477. 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 9h 55m 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.