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.

£169 Cheap Flights from Boston to Belfast Intl Airport in 2026/27

Find the cheapest flights from Boston to Belfast

Return

One-way

Cheap return flights

Enter your travel dates to find the best prices.

17:15 - 14:30BOS Boston Logan Intl-BFS Belfast Intl

16h 15m2 stops Dublin Liverpool J. Lennon

22:05 - 20:15BFS Belfast Intl-BOS Boston Logan Intl

27h 10m3 stops London Stansted Madrid Barajas Lisbon Humberto Delgado

£539Multiple Airlines

Wed, 11 Nov - Wed, 18 Nov

21:20 - 20:10BOS Boston Logan Intl-BFS Belfast Intl

17h 50m2 stops Dublin London Stansted

06:20 - 17:50BFS Belfast Intl-BOS Boston Logan Intl

16h 30m2 stops Glasgow Intl Reykjavik Keflavik Intl

£581Multiple Airlines

Mon, 30 Nov - Mon, 7 Dec

17:15 - 15:20BOS Boston Logan Intl-BFS Belfast Intl

17h 05m2 stops Dublin Faro

19:05 - 14:00BFS Belfast Intl-BOS Boston Logan Intl

23h 55m3 stops London Stansted Barcelona-El Prat Lisbon Humberto Delgado

£586Multiple Airlines

Sat, 28 Nov - Sat, 5 Dec

18:00 - 13:50BOS Boston Logan Intl-BFS Belfast Intl

14h 50m2 stops Lisbon Humberto Delgado London Gatwick

14:15 - 14:40BFS Belfast Intl-BOS Boston Logan Intl

29h 25m3 stops London Gatwick Barcelona-El Prat Lisbon Humberto Delgado

£595Multiple Airlines

Sun, 10 Jan - Tue, 26 Jan

19:50 - 17:05BOS Boston Logan Intl-BFS Belfast Intl

16h 15m3 stops Reykjavik Keflavik Intl Dublin London Stansted

14:15 - 14:40BFS Belfast Intl-BOS Boston Logan Intl

29h 25m3 stops London Gatwick Barcelona-El Prat Lisbon Humberto Delgado

£597Multiple Airlines

Sun, 10 Jan - Tue, 26 Jan

18:00 - 13:50BOS Boston Logan Intl-BFS Belfast Intl

14h 50m2 stops Lisbon Humberto Delgado London Gatwick

10:55 - 15:00BFS Belfast Intl-BOS Boston Logan Intl

33h 05m2 stops London Gatwick Lisbon Humberto Delgado

£637Multiple Airlines

Wed, 11 Nov - Wed, 18 Nov

17:15 - 11:45BOS Boston Logan Intl-BFS Belfast Intl

13h 30m2 stops Dublin Edinburgh Turnhouse

08:30 - 17:50BFS Belfast Intl-BOS Boston Logan Intl

14h 20m2 stops Manchester Reykjavik Keflavik Intl

£689Multiple Airlines

Sun, 10 Jan - Tue, 26 Jan

22:10 - 21:40BOS Boston Logan Intl-BFS Belfast Intl

18h 30m3 stops Lisbon Humberto Delgado Dublin Manchester

06:00 - 20:00BFS Belfast Intl-BOS Boston Logan Intl

19h 00m3 stops London Stansted Lisbon Humberto Delgado Ponta Delgada Nordela

£700Multiple Airlines

Sun, 3 Jan - Mon, 18 Jan

21:20 - 18:35BOS Boston Logan Intl-BFS Belfast Intl

16h 15m2 stops Dublin London Stansted

08:25 - 19:05BFS Belfast Intl-BOS Boston Logan Intl

15h 40m2 stops Manchester Dublin

£714Multiple Airlines

Fri, 27 Nov - Fri, 4 Dec

22:10 - 21:25BOS Boston Logan Intl-BFS Belfast Intl

18h 15m2 stops Lisbon Humberto Delgado London Gatwick

06:00 - 20:00BFS Belfast Intl-BOS Boston Logan Intl

19h 00m3 stops London Stansted Lisbon Humberto Delgado Ponta Delgada Nordela

£716Multiple Airlines

Sun, 3 Jan - Mon, 18 Jan

Save money when you book flights with momondo

Big names, great deals

Search 100s of travel sites to compare prices.

Filter for what you want

Free Wi-Fi? Stopover? Instantly customise your results.

Trusted and free

We’re completely free to use - no hidden charges or fees.

Price Alerts

Not ready to book? to track prices.

Search flight deals

momondo Fare Finder

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

BostonBelfast

BOS Boston Logan Intl - BFS Belfast Intl

BOSBFS

Boston Logan Intl

Wed 11/11

17:15-14:30

2 stops16h 15m

Belfast Intl

Wed 18/11

22:05-20:15

3 stops27h 10m

£539

BostonBelfast

BOS Boston Logan Intl - BFS Belfast Intl

BOSBFS

Boston Logan Intl

Mon 30/11

21:20-20:10

2 stops17h 50m

Belfast Intl

Mon 7/12

06:20-17:50

2 stops16h 30m

£581

BostonBelfast

BOS Boston Logan Intl - BFS Belfast Intl

BOSBFS

Boston Logan Intl

Sat 28/11

17:15-15:20

2 stops17h 05m

Belfast Intl

Sat 5/12

19:05-14:00

3 stops23h 55m

£586

BostonBelfast

BOS Boston Logan Intl - BFS Belfast Intl

BOSBFS

Boston Logan Intl

Sun 10/1

18:00-13:50

2 stops14h 50m

Belfast Intl

Tue 26/1

14:15-14:40

3 stops29h 25m

£595

BostonBelfast

BOS Boston Logan Intl - BFS Belfast Intl

BOSBFS

Boston Logan Intl

Sun 10/1

19:50-17:05

3 stops16h 15m

Belfast Intl

Tue 26/1

14:15-14:40

3 stops29h 25m

£597

BostonBelfast

BOS Boston Logan Intl - BFS Belfast Intl

BOSBFS

Boston Logan Intl

Wed 11/11

18:00-13:50

2 stops14h 50m

Belfast Intl

Wed 18/11

10:55-15:00

2 stops33h 05m

£637

Fastest return journey

BostonBelfast

BOS Boston Logan Intl - BFS Belfast Intl

BOSBFS

Boston Logan Intl

Sun 10/1

17:15-11:45

2 stops13h 30m

Belfast Intl

Tue 26/1

08:30-17:50

2 stops14h 20m

£689

BostonBelfast

BOS Boston Logan Intl - BFS Belfast Intl

BOSBFS

Boston Logan Intl

Sun 3/1

22:10-21:40

3 stops18h 30m

Belfast Intl

Mon 18/1

06:00-20:00

3 stops19h 00m

£700

BostonBelfast

BOS Boston Logan Intl - BFS Belfast Intl

BOSBFS

Boston Logan Intl

Fri 27/11

21:20-18:35

2 stops16h 15m

Belfast Intl

Fri 4/12

08:25-19:05

2 stops15h 40m

£714

BostonBelfast

BOS Boston Logan Intl - BFS Belfast Intl

BOSBFS

Boston Logan Intl

Sun 3/1

22:10-21:25

2 stops18h 15m

Belfast Intl

Mon 18/1

06:00-20:00

3 stops19h 00m

£716

Flights are sorted by cheapest return flights first.

Showing 1-10 of 13 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 typical price of a round-trip flight between Boston and Belfast Intl Airport?

Prices are currently typical for flights on this route.

Typical prices usually range from £478 to £796.
The lowest price recently found on this route was £539.

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	£169
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 £169. The best return flight deal from Boston to Belfast Intl Airport found on momondo in the last 72 hours is £539.

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

Dungannon

Portadown

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.