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.

£183 Cheap Flights from Boston to Belfast Intl Airport in 2026

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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.

17:20 - 20:55

BOS

BFS

22h 35m

2 stops

21:55 - 17:40

BFS

BOS

24h 45m

2 stops

£590Multiple Airlines

Mon, 20 Apr - Mon, 27 Apr

21:40 - 23:50

BOS

BFS

21h 10m

2 stops

13:15 - 15:10

BFS

BOS

30h 55m

2 stops

£595Multiple Airlines

Fri, 3 Apr - Tue, 7 Apr

20:50 - 23:45

BOS

BFS

21h 55m

3 stops

21:25 - 14:45

BFS

BOS

46h 20m

3 stops

£604Multiple Airlines

Mon, 20 Apr - Mon, 27 Apr

22:50 - 08:40

BOS

BFS

28h 50m

1 stop

08:55 - 21:05

BFS

BOS

17h 10m

2 stops

£607Multiple Airlines

Sat, 2 May - Sat, 9 May

20:50 - 15:35

BOS

BFS

13h 45m

2 stops

21:25 - 14:45

BFS

BOS

46h 20m

3 stops

£610Multiple Airlines

Mon, 20 Apr - Mon, 27 Apr

20:10 - 15:30

BOS

BFS

14h 20m

1 stop

08:55 - 20:05

BFS

BOS

16h 10m

1 stop

£631Multiple Airlines

Thu, 30 Apr - Wed, 6 May

21:40 - 00:05

BOS

BFS

21h 25m

2 stops

10:30 - 20:20

BFS

BOS

14h 50m

1 stop

£643Multiple Airlines

Mon, 4 May - Mon, 11 May

20:50 - 16:20

BOS

BFS

14h 30m

2 stops

10:30 - 18:50

BFS

BOS

13h 20m

2 stops

£654Multiple Airlines

Tue, 5 May - Tue, 12 May

20:50 - 19:50

BOS

BFS

18h 00m

3 stops

08:20 - 18:50

BFS

BOS

15h 30m

2 stops

£669Multiple Airlines

Tue, 5 May - Tue, 12 May

20:50 - 19:50

BOS

BFS

18h 00m

3 stops

23:30 - 07:10

BFS

BOS

36h 40m

3 stops

£680Multiple Airlines

Tue, 5 May - Tue, 12 May

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

Mon 20/4

17:20-20:55

2 stops22h 35m

Belfast Intl

Mon 27/4

21:55-17:40

2 stops24h 45m

£590

BostonBelfast

BOS - BFS

BOSBFS

Boston Logan Intl

Fri 3/4

21:40-23:50

2 stops21h 10m

Belfast Intl

Tue 7/4

13:15-15:10

2 stops30h 55m

£595

BostonBelfast

BOS - BFS

BOSBFS

Boston Logan Intl

Mon 20/4

20:50-23:45

3 stops21h 55m

Belfast Intl

Mon 27/4

21:25-14:45

3 stops46h 20m

£604

BostonBelfast

BOS - BFS

BOSBFS

Boston Logan Intl

Sat 2/5

22:50-08:40

1 stop28h 50m

Belfast Intl

Sat 9/5

08:55-21:05

2 stops17h 10m

£607

BostonBelfast

BOS - BFS

BOSBFS

Boston Logan Intl

Mon 20/4

20:50-15:35

2 stops13h 45m

Belfast Intl

Mon 27/4

21:25-14:45

3 stops46h 20m

£610

BostonBelfast

BOS - BFS

BOSBFS

Boston Logan Intl

Thu 30/4

20:10-15:30

1 stop14h 20m

Belfast Intl

Wed 6/5

08:55-20:05

1 stop16h 10m

£631

BostonBelfast

BOS - BFS

BOSBFS

Boston Logan Intl

Mon 4/5

21:40-00:05

2 stops21h 25m

Belfast Intl

Mon 11/5

10:30-20:20

1 stop14h 50m

£643

Fastest return journey

BostonBelfast

BOS - BFS

BOSBFS

Boston Logan Intl

Tue 5/5

20:50-16:20

2 stops14h 30m

Belfast Intl

Tue 12/5

10:30-18:50

2 stops13h 20m

£654

BostonBelfast

BOS - BFS

BOSBFS

Boston Logan Intl

Tue 5/5

20:50-19:50

3 stops18h 00m

Belfast Intl

Tue 12/5

08:20-18:50

2 stops15h 30m

£669

BostonBelfast

BOS - BFS

BOSBFS

Boston Logan Intl

Tue 5/5

20:50-19:50

3 stops18h 00m

Belfast Intl

Tue 12/5

23:30-07:10

3 stops36h 40m

£680

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 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 £405. If you’re not able to fly to Belfast Intl Airport in February, then March is your next best option. Flight prices from Boston to Belfast Intl Airport during March average around £447.

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 05m
Direct flights	None

The fastest flight from Boston to Belfast Intl Airport takes 10h 05m

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

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 05m.
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.