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.

£235 Cheap Flights from Boston to Belfast Intl Airport in 2026

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

Prices are currently low for flights on this route. Typical prices usually range from £912 to £533. The lowest price recently found on this route was £637.

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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.

20:50 - 23:05

BOS

BFS

21h 15m

2 stops

09:10 - 14:45

BFS

BOS

34h 35m

2 stops

£637Multiple Airlines

Thu, 1 Oct - Mon, 5 Oct

20:50 - 19:30

BOS

BFS

17h 40m

2 stops

08:40 - 14:45

BFS

BOS

35h 05m

3 stops

£649Multiple Airlines

Thu, 1 Oct - Mon, 5 Oct

10:35 - 16:20

BOS

BFS

24h 45m

3 stops

05:55 - 17:59

BFS

BOS

17h 04m

2 stops

£649Multiple Airlines

Tue, 9 Jun - Tue, 16 Jun

10:35 - 16:20

BOS

BFS

24h 45m

3 stops

20:10 - 17:35

BFS

BOS

26h 25m

3 stops

£650Multiple Airlines

Tue, 9 Jun - Tue, 16 Jun

23:35 - 23:30

BOS

BFS

18h 55m

2 stops

17:45 - 21:45

BFS

BOS

33h 00m

1 stop

£652Multiple Airlines

Thu, 16 Jul - Wed, 29 Jul

12:30 - 19:50

BOS

BFS

26h 20m

2 stops

05:55 - 17:59

BFS

BOS

17h 04m

2 stops

£655Multiple Airlines

Tue, 9 Jun - Tue, 16 Jun

20:50 - 19:30

BOS

BFS

17h 40m

3 stops

08:40 - 14:45

BFS

BOS

35h 05m

3 stops

£656Multiple Airlines

Thu, 1 Oct - Mon, 5 Oct

17:40 - 23:15

BOS

BFS

24h 35m

2 stops

08:00 - 15:35

BFS

BOS

36h 35m

2 stops

£666Multiple Airlines

Wed, 19 Aug - Mon, 24 Aug

18:55 - 16:30

BOS

BFS

16h 35m

2 stops

06:10 - 20:55

BFS

BOS

43h 45m

3 stops

£680Multiple Airlines

Fri, 5 Jun - Thu, 11 Jun

05:50 - 16:30

BOS

BFS

29h 40m

3 stops

06:10 - 20:55

BFS

BOS

43h 45m

3 stops

£688Multiple Airlines

Fri, 5 Jun - Thu, 11 Jun

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 - BFS

BOSBFS

Boston Logan Intl

Thu 1/10

20:50-23:05

2 stops21h 15m

Belfast Intl

Mon 5/10

09:10-14:45

2 stops34h 35m

£637

BostonBelfast

BOS - BFS

BOSBFS

Boston Logan Intl

Thu 1/10

20:50-19:30

2 stops17h 40m

Belfast Intl

Mon 5/10

08:40-14:45

3 stops35h 05m

£649

Fastest return journey

BostonBelfast

BOS - BFS

BOSBFS

Boston Logan Intl

Tue 9/6

10:35-16:20

3 stops24h 45m

Belfast Intl

Tue 16/6

05:55-17:59

2 stops17h 04m

£649

BostonBelfast

BOS - BFS

BOSBFS

Boston Logan Intl

Tue 9/6

10:35-16:20

3 stops24h 45m

Belfast Intl

Tue 16/6

20:10-17:35

3 stops26h 25m

£650

BostonBelfast

BOS - BFS

BOSBFS

Boston Logan Intl

Thu 16/7

23:35-23:30

2 stops18h 55m

Belfast Intl

Wed 29/7

17:45-21:45

1 stop33h 00m

£652

BostonBelfast

BOS - BFS

BOSBFS

Boston Logan Intl

Tue 9/6

12:30-19:50

2 stops26h 20m

Belfast Intl

Tue 16/6

05:55-17:59

2 stops17h 04m

£655

BostonBelfast

BOS - BFS

BOSBFS

Boston Logan Intl

Thu 1/10

20:50-19:30

3 stops17h 40m

Belfast Intl

Mon 5/10

08:40-14:45

3 stops35h 05m

£656

BostonBelfast

BOS - BFS

BOSBFS

Boston Logan Intl

Wed 19/8

17:40-23:15

2 stops24h 35m

Belfast Intl

Mon 24/8

08:00-15:35

2 stops36h 35m

£666

BostonBelfast

BOS - BFS

BOSBFS

Boston Logan Intl

Fri 5/6

18:55-16:30

2 stops16h 35m

Belfast Intl

Thu 11/6

06:10-20:55

3 stops43h 45m

£680

BostonBelfast

BOS - BFS

BOSBFS

Boston Logan Intl

Fri 5/6

05:50-16:30

3 stops29h 40m

Belfast Intl

Thu 11/6

06:10-20:55

3 stops43h 45m

£688

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 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?

What is the cheapest month to fly to Belfast Intl Airport?

The month of February is, on average, the cheapest month to fly to Belfast Intl Airport from Boston, with most prices found around £398. If you’re not able to fly to Belfast Intl Airport in February, then August is your next best option. Flight prices from Boston to Belfast Intl Airport during August average around £418.

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

Fastest flight time	10h 45m
Direct flights	None

The fastest flight from Boston to Belfast Intl Airport takes 10h 45m

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

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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 10h 45m.
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.

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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.