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

British Airways is the most popular carrier 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.

£203 Cheap Flights from Boston to Belfast in 2025/26

Q: What is the typical price of a round-trip flight between Boston and Belfast?

Prices are currently low for flights on this route. Typical prices usually range from £763 to £937. The lowest price recently found on this route was £424.

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Find the cheapest flights from Boston to Belfast

Round-trip

One-way

Cheap return flights

Enter your travel dates to find the best prices.

21:50 - 15:30BOS-BHD

12h 40m1 stop

13:40 - 20:05BHD-BOS

11h 25m1 stop

£424British Airways

Find Deal

Fri, 3 Apr - Tue, 7 Apr

18:55 - 10:20BOS-BHD

10h 25m1 stop

15:05 - 14:20BHD-BOS

28h 15m1 stop

£429British Airways

Find Deal

Sun, 25 Jan - Sat, 31 Jan

17:10 - 10:20BOS-BFS

12h 10m2 stops

06:30 - 18:59BFS-BOS

17h 29m2 stops

£435Multiple Airlines

Find Deal

Tue, 13 Jan - Tue, 20 Jan

18:55 - 10:20BOS-BHD

10h 25m1 stop

18:00 - 15:48BHD-BOS

26h 48m2 stops

£447British Airways

Find Deal

Sun, 25 Jan - Sat, 31 Jan

09:30 - 13:55BOS-BHD

23h 25m2 stops

18:00 - 15:48BHD-BOS

26h 48m2 stops

£447British Airways

Find Deal

Sun, 25 Jan - Sat, 31 Jan

21:50 - 15:30BOS-BHD

12h 40m1 stop

09:35 - 18:52BHD-BOS

14h 17m2 stops

£458British Airways

Find Deal

Fri, 3 Apr - Tue, 7 Apr

07:30 - 07:30BOS-BHD

19h 00m1 stop

19:25 - 19:25BHD-BOS

29h 00m2 stops

£459British Airways

Find Deal

Thu, 12 Feb - Mon, 16 Feb

15:49 - 15:30BOS-BHD

18h 41m2 stops

06:35 - 20:06BHD-BOS

18h 31m2 stops

£468British Airways

Find Deal

Fri, 3 Apr - Tue, 7 Apr

20:25 - 16:55BOS-BHD

15h 30m1 stop

09:50 - 18:29BHD-BOS

13h 39m2 stops

£489Multiple Airlines

Find Deal

Mon, 13 Apr - Wed, 15 Apr

07:25 - 08:50BOS-BHD

20h 25m1 stop

10:00 - 20:05BHD-BOS

15h 05m1 stop

£499British Airways

Find Deal

Mon, 13 Apr - Wed, 15 Apr

American Airlines flights from Boston to Belfast

Our best American Airlines deals on Boston to Belfast flight tickets

American Airlines

18 Jan

BOS19:15Boston Logan Intl

10h 05m

1 stop

BHD10:20Belfast City

22 Jan

BHD06:35Belfast City

15h 15m

2 stops

BOS16:50Boston Logan Intl

£650

Find similar

American Airlines

18 Jan

BOS19:25Boston Logan Intl

13h 30m

2 stops

BHD13:55Belfast City

22 Jan

BHD06:35Belfast City

15h 15m

2 stops

BOS16:50Boston Logan Intl

£651

Find similar

American Airlines

18 Jan

BOS19:25Boston Logan Intl

13h 30m

2 stops

BHD13:55Belfast City

22 Jan

BHD06:35Belfast City

15h 15m

2 stops

BOS16:50Boston Logan Intl

£652

Find similar

Delta flights from Boston to Belfast

Our best Delta deals on Boston to Belfast flight tickets

Delta

17 Dec

BOS12:50Boston Logan Intl

23h 00m

2 stops

BHD16:50Belfast City

24 Dec

BHD06:30Belfast City

11h 50m

1 stop

BOS13:20Boston Logan Intl

£838

Find similar

Delta

17 Dec

BOS12:50Boston Logan Intl

23h 00m

2 stops

BHD16:50Belfast City

24 Dec

BHD06:30Belfast City

18h 17m

2 stops

BOS19:47Boston Logan Intl

£845

Find similar

Fly from

Fly to

Route

Depart

Return

Price

BostonBelfast

BOS - BHD

BOSBHD

Boston Logan Intl

Fri 3/4

21:50-15:30

1 stop12h 40m

Belfast City

Tue 7/4

13:40-20:05

1 stop11h 25m

£424

BostonBelfast

BOS - BHD

BOSBHD

Boston Logan Intl

Sun 25/1

18:55-10:20

1 stop10h 25m

Belfast City

Sat 31/1

15:05-14:20

1 stop28h 15m

£429

BostonBelfast

BOS - BFS

BOSBFS

Boston Logan Intl

Tue 13/1

17:10-10:20

2 stops12h 10m

Belfast Intl

Tue 20/1

06:30-18:59

2 stops17h 29m

£435

BostonBelfast

BOS - BHD

BOSBHD

Boston Logan Intl

Sun 25/1

18:55-10:20

1 stop10h 25m

Belfast City

Sat 31/1

18:00-15:48

2 stops26h 48m

£447

BostonBelfast

BOS - BHD

BOSBHD

Boston Logan Intl

Sun 25/1

09:30-13:55

2 stops23h 25m

Belfast City

Sat 31/1

18:00-15:48

2 stops26h 48m

£447

BostonBelfast

BOS - BHD

BOSBHD

Boston Logan Intl

Fri 3/4

21:50-15:30

1 stop12h 40m

Belfast City

Tue 7/4

09:35-18:52

2 stops14h 17m

£458

BostonBelfast

BOS - BHD

BOSBHD

Boston Logan Intl

Thu 12/2

07:30-07:30

1 stop19h 00m

Belfast City

Mon 16/2

19:25-19:25

2 stops29h 00m

£459

BostonBelfast

BOS - BHD

BOSBHD

Boston Logan Intl

Fri 3/4

15:49-15:30

2 stops18h 41m

Belfast City

Tue 7/4

06:35-20:06

2 stops18h 31m

£468

BostonBelfast

BOS - BHD

BOSBHD

Boston Logan Intl

Mon 13/4

20:25-16:55

1 stop15h 30m

Belfast City

Wed 15/4

09:50-18:29

2 stops13h 39m

£489

BostonBelfast

BOS - BHD

BOSBHD

Boston Logan Intl

Mon 13/4

07:25-08:50

1 stop20h 25m

Belfast City

Wed 15/4

10:00-20:05

1 stop15h 05m

£499

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 typical price of a round-trip flight between Boston and Belfast?

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 £464, 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 £485.

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 £479. Flights to Belfast are more costly in the afternoon, with an average ticket price of £481. 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

Fastest flight time	12h 40m
Direct flights	None

The fastest flight from Boston to Belfast takes 12h 40m

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 9h 25m 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.