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

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

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

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 Intl Airport.

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

The travel and health documents required for your trip to Belfast Intl Airport 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 Intl Airport. We always recommend checking with your airline or a trusted third party such as IATA to get advice.

£230 Cheap Flights from Boston to Belfast Intl Airport in 2026

Find the cheapest flights from Boston to Belfast

Return

One-way

Cheap return flights

Enter your travel dates to find the best prices.

23:00 - 16:15BOS Boston Logan Intl-BFS Belfast Intl

12h 15m2 stops Reykjavik Keflavik Intl Glasgow Intl

09:35 - 21:05BFS Belfast Intl-BOS Boston Logan Intl

16h 30m1 stop Barcelona-El Prat

£487Multiple Airlines

Mon, 5 Oct - Wed, 21 Oct

12:30 - 19:40BOS Boston Logan Intl-BFS Belfast Intl

26h 10m2 stops Toronto Pearson Intl Glasgow Intl

22:30 - 14:45BFS Belfast Intl-BOS Boston Logan Intl

45h 15m3 stops London Luton Barcelona-El Prat Lisbon Humberto Delgado

£563Multiple Airlines

Tue, 15 Sep - Tue, 22 Sep

16:55 - 19:15BOS Boston Logan Intl-BFS Belfast Intl

21h 20m2 stops Toronto Pearson Intl Edinburgh Turnhouse

08:30 - 14:45BFS Belfast Intl-BOS Boston Logan Intl

35h 15m3 stops London Stansted Barcelona-El Prat Lisbon Humberto Delgado

£564Multiple Airlines

Wed, 30 Sep - Wed, 7 Oct

10:05 - 16:20BOS Boston Logan Intl-BFS Belfast Intl

25h 15m2 stops Toronto Pearson Intl Glasgow Intl

08:00 - 14:45BFS Belfast Intl-BOS Boston Logan Intl

35h 45m3 stops London Luton Barcelona-El Prat Lisbon Humberto Delgado

£570Multiple Airlines

Tue, 15 Sep - Tue, 22 Sep

20:50 - 16:50BOS Boston Logan Intl-BFS Belfast Intl

15h 00m2 stops Reykjavik Keflavik Intl Edinburgh Turnhouse

07:50 - 15:40BFS Belfast Intl-BOS Boston Logan Intl

35h 50m3 stops Manchester Barcelona-El Prat Lisbon Humberto Delgado

£578Multiple Airlines

Sat, 24 Oct - Sat, 31 Oct

20:50 - 21:50BOS Boston Logan Intl-BFS Belfast Intl

20h 00m2 stops Reykjavik Keflavik Intl Glasgow Intl

21:30 - 20:20BFS Belfast Intl-BOS Boston Logan Intl

27h 50m3 stops London Luton Madrid Barajas Lisbon Humberto Delgado

£591Multiple Airlines

Fri, 2 Oct - Fri, 9 Oct

20:50 - 21:30BOS Boston Logan Intl-BFS Belfast Intl

19h 40m2 stops Reykjavik Keflavik Intl London Heathrow

07:00 - 21:45BFS Belfast Intl-BOS Boston Logan Intl

19h 45m2 stops London Luton Reykjavik Keflavik Intl

£594Multiple Airlines

Sat, 19 Sep - Wed, 23 Sep

20:50 - 20:45BOS Boston Logan Intl-BFS Belfast Intl

18h 55m3 stops Reykjavik Keflavik Intl Dublin Edinburgh Turnhouse

21:30 - 20:20BFS Belfast Intl-BOS Boston Logan Intl

27h 50m3 stops London Luton Madrid Barajas Lisbon Humberto Delgado

£602Multiple Airlines

Fri, 2 Oct - Fri, 9 Oct

10:05 - 17:30BOS Boston Logan Intl-BFS Belfast Intl

26h 25m2 stops Toronto Pearson Intl Edinburgh Turnhouse

09:35 - 21:05BFS Belfast Intl-BOS Boston Logan Intl

16h 30m1 stop Barcelona-El Prat

£606Multiple Airlines

Wed, 30 Sep - Wed, 7 Oct

20:50 - 21:50BOS Boston Logan Intl-BFS Belfast Intl

20h 00m2 stops Reykjavik Keflavik Intl Glasgow Intl

08:20 - 21:45BFS Belfast Intl-BOS Boston Logan Intl

18h 25m2 stops Glasgow Intl Reykjavik Keflavik Intl

£611Multiple Airlines

Fri, 2 Oct - Fri, 9 Oct

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Use the filters below to find and compare flights from Boston to Belfast Intl Airport that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest return flight

Fastest return journey

BostonBelfast

BOS Boston Logan Intl - BFS Belfast Intl

BOSBFS

Boston Logan Intl

Mon 5/10

23:00-16:15

2 stops12h 15m

Belfast Intl

Wed 21/10

09:35-21:05

1 stop16h 30m

£487

BostonBelfast

BOS Boston Logan Intl - BFS Belfast Intl

BOSBFS

Boston Logan Intl

Tue 15/9

12:30-19:40

2 stops26h 10m

Belfast Intl

Tue 22/9

22:30-14:45

3 stops45h 15m

£563

BostonBelfast

BOS Boston Logan Intl - BFS Belfast Intl

BOSBFS

Boston Logan Intl

Wed 30/9

16:55-19:15

2 stops21h 20m

Belfast Intl

Wed 7/10

08:30-14:45

3 stops35h 15m

£564

BostonBelfast

BOS Boston Logan Intl - BFS Belfast Intl

BOSBFS

Boston Logan Intl

Tue 15/9

10:05-16:20

2 stops25h 15m

Belfast Intl

Tue 22/9

08:00-14:45

3 stops35h 45m

£570

BostonBelfast

BOS Boston Logan Intl - BFS Belfast Intl

BOSBFS

Boston Logan Intl

Sat 24/10

20:50-16:50

2 stops15h 00m

Belfast Intl

Sat 31/10

07:50-15:40

3 stops35h 50m

£578

BostonBelfast

BOS Boston Logan Intl - BFS Belfast Intl

BOSBFS

Boston Logan Intl

Fri 2/10

20:50-21:50

2 stops20h 00m

Belfast Intl

Fri 9/10

21:30-20:20

3 stops27h 50m

£591

BostonBelfast

BOS Boston Logan Intl - BFS Belfast Intl

BOSBFS

Boston Logan Intl

Sat 19/9

20:50-21:30

2 stops19h 40m

Belfast Intl

Wed 23/9

07:00-21:45

2 stops19h 45m

£594

BostonBelfast

BOS Boston Logan Intl - BFS Belfast Intl

BOSBFS

Boston Logan Intl

Fri 2/10

20:50-20:45

3 stops18h 55m

Belfast Intl

Fri 9/10

21:30-20:20

3 stops27h 50m

£602

BostonBelfast

BOS Boston Logan Intl - BFS Belfast Intl

BOSBFS

Boston Logan Intl

Wed 30/9

10:05-17:30

2 stops26h 25m

Belfast Intl

Wed 7/10

09:35-21:05

1 stop16h 30m

£606

BostonBelfast

BOS Boston Logan Intl - BFS Belfast Intl

BOSBFS

Boston Logan Intl

Fri 2/10

20:50-21:50

2 stops20h 00m

Belfast Intl

Fri 9/10

08:20-21:45

2 stops18h 25m

£611

Flights are sorted by cheapest return flights first.

Showing 1-10 of 19 resultsSorted by cheapest first

How to get the cheapest flight ticket from Boston to Belfast Intl Airport

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 month to fly to Belfast Intl Airport?

The month of July is, on average, the cheapest month to fly to Belfast Intl Airport from Boston, with most prices found around £0. If you’re not able to fly to Belfast Intl Airport in July, then February is your next best option. Flight prices from Boston to Belfast Intl Airport during February average around £0.

When to book flights from Boston to Belfast Intl Airport

Are you open to changing your travel dates? Check out the ideal times to fly from Boston to Belfast Intl Airport according to our flight data. Find out which month and days have the cheapest flights.

Estimated return price

Cheap Boston to Belfast Intl Airport (BOS to BFS) flight deals and tips

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

Best price found	£230
Fastest flight time	11h 15m
Direct flights	None

The best one-way flight to Belfast Intl Airport from Boston in the past 72 hours is £230. The best return flight deal from Boston to Belfast Intl Airport found on momondo in the last 72 hours is £487.

The fastest flight from Boston to Belfast Intl Airport takes 11h 15m

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

Search flight deals

Frequently asked questions about flying from Boston to Belfast Intl Airport

How far is Boston Logan Intl to Belfast Intl by plane?
A flight from Boston Logan Intl to Belfast Intl will travel around 2969.1 mi. A reasonable flight in good conditions will take 11h 15m.
When did momondo last update prices for flights from Boston Logan Intl Airport to Belfast Intl Airport?
Prices for flights from Boston Logan Intl Airport to Belfast Intl Airport refresh daily.
How old do you have to be to fly from Boston Logan Intl Airport to Belfast Intl Airport?
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 Intl Airport.
What documentation or ID do you need to fly to Belfast Intl Airport?
The travel and health documents required for your trip to Belfast Intl Airport 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 Intl Airport. We always recommend checking with your airline or a trusted third party such as IATA to get advice.

Ballymena

Newry

Armagh

Cookstown

Portadown

Dungannon

Why use momondo?

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

momondo collates all your flight options in one place and lets you filter them to find the perfect flight from Boston to Belfast. momondo saves you time and could save you money on your trip.

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

All flight searches from Boston to Belfast on momondo can be filtered to show those which offer flexible booking policies.

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

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

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

Of course. momondo tracks the price of Boston to Belfast flights. All you need is a valid email address and we will do the rest; it is that quick and easy.