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 refresh daily.

How many operators does momondo search for flights from Boston Logan Intl Airport to Belfast?

The number of operators available for flights from Boston Logan Intl Airport to Belfast is 2 as of August 2025.

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

The minimum age a child must be to fly alone is five but airlines that offer an unaccompanied minor (UNMR) service will have their own age restrictions, including rules around flight length, timings, and stopovers. We always recommend checking with the individual airline you are booking with to 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.

$265 Cheap Flights from Boston to Belfast in 2025

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Find the cheapest flights from Boston to Belfast

Round-trip

One-way

Last minute

Cheap round-trip flights

8:05 pm - 3:05 pmBOS-BHD

14h 00m1 stop

4:15 pm - 10:40 pmBHD-BOS

11h 25m1 stop

$519British Airways

Find Deal

Sat, Oct 4 - Sat, Oct 11

8:05 pm - 12:55 pmBOS-BHD

11h 50m1 stop

6:50 am - 7:50 pmBHD-BOS

18h 00m2 stops

$529British Airways

Find Deal

Mon, Sep 22 - Sun, Sep 28

8:05 pm - 12:55 pmBOS-BHD

11h 50m1 stop

8:05 pm - 11:15 amBHD-BOS

20h 10m1 stop

$534British Airways

Find Deal

Mon, Sep 22 - Sun, Sep 28

8:10 pm - 1:05 pmBOS-BHD

11h 55m1 stop

6:30 pm - 11:25 amBHD-BOS

21h 55m1 stop

$535British Airways

Find Deal

Sun, Aug 17 - Sun, Aug 24

8:10 pm - 1:00 pmBOS-BHD

11h 50m1 stop

8:20 pm - 11:15 amBHD-BOS

19h 55m1 stop

$537British Airways

Find Deal

Tue, Aug 26 - Tue, Sep 9

6:32 am - 8:50 amBOS-BHD

21h 18m2 stops

8:15 pm - 11:15 amBHD-BOS

20h 00m1 stop

$539British Airways

Find Deal

Wed, Aug 27 - Wed, Sep 3

12:54 pm - 11:55 amBOS-BHD

18h 01m2 stops

8:15 pm - 11:15 amBHD-BOS

20h 00m1 stop

$541British Airways

Find Deal

Wed, Aug 27 - Wed, Sep 3

8:05 pm - 3:30 pmBOS-BHD

14h 25m1 stop

4:25 pm - 11:15 amBHD-BOS

23h 50m1 stop

$549American Airlines

Find Deal

Fri, Sep 26 - Tue, Sep 30

7:36 pm - 2:00 pmBOS-BHD

13h 24m2 stops

6:35 am - 4:56 pmBHD-BOS

15h 21m2 stops

$553American Airlines

Find Deal

Thu, Jan 8 - Mon, Jan 12

9:35 pm - 4:45 pmBOS-BHD

14h 10m1 stop

12:10 pm - 10:46 pmBHD-BOS

15h 36m2 stops

$577

Find Deal

Tue, Nov 25 - Sun, Nov 30

British Airways flights from Boston to Belfast

Our best British Airways deals on Boston to Belfast flight tickets

British Airways

Oct 4

BOS8:05 pmBoston Logan Intl

14h 00m

1 stop

BHD3:05 pmBelfast City

Oct 11

BHD4:15 pmBelfast City

11h 25m

1 stop

BOS10:40 pmBoston Logan Intl

$519

Find similar

British Airways

Sep 22

BOS8:05 pmBoston Logan Intl

11h 50m

1 stop

BHD12:55 pmBelfast City

Sep 28

BHD6:50 amBelfast City

18h 00m

2 stops

BOS7:50 pmBoston Logan Intl

$529

Find similar

British Airways

Sep 22

BOS8:05 pmBoston Logan Intl

11h 50m

1 stop

BHD12:55 pmBelfast City

Sep 28

BHD8:05 pmBelfast City

20h 10m

1 stop

BOS11:15 amBoston Logan Intl

$534

Find similar

American Airlines flights from Boston to Belfast

Our best American Airlines deals on Boston to Belfast flight tickets

American Airlines

Sep 26

BOS8:05 pmBoston Logan Intl

14h 25m

1 stop

BHD3:30 pmBelfast City

Sep 30

BHD4:25 pmBelfast City

23h 50m

1 stop

BOS11:15 amBoston Logan Intl

$549

Find similar

American Airlines

Jan 8

BOS7:36 pmBoston Logan Intl

13h 24m

2 stops

BHD2:00 pmBelfast City

Jan 12

BHD6:35 amBelfast City

15h 21m

2 stops

BOS4:56 pmBoston Logan Intl

$553

Find similar

Fly from

Fly to

Route

Depart

Return

Price

BostonBelfast

BOS - BHD

BOSBHD

Boston Logan Intl

Sat 10/4

8:05 pm-3:05 pm

1 stop14h 00m

Belfast City

Sat 10/11

4:15 pm-10:40 pm

1 stop11h 25m

$519

BostonBelfast

BOS - BHD

BOSBHD

Boston Logan Intl

Mon 9/22

8:05 pm-12:55 pm

1 stop11h 50m

Belfast City

Sun 9/28

6:50 am-7:50 pm

2 stops18h 00m

$529

BostonBelfast

BOS - BHD

BOSBHD

Boston Logan Intl

Mon 9/22

8:05 pm-12:55 pm

1 stop11h 50m

Belfast City

Sun 9/28

8:05 pm-11:15 am

1 stop20h 10m

$534

BostonBelfast

BOS - BHD

BOSBHD

Boston Logan Intl

Sun 8/17

8:10 pm-1:05 pm

1 stop11h 55m

Belfast City

Sun 8/24

6:30 pm-11:25 am

1 stop21h 55m

$535

BostonBelfast

BOS - BHD

BOSBHD

Boston Logan Intl

Tue 8/26

8:10 pm-1:00 pm

1 stop11h 50m

Belfast City

Tue 9/9

8:20 pm-11:15 am

1 stop19h 55m

$537

BostonBelfast

BOS - BHD

BOSBHD

Boston Logan Intl

Wed 8/27

6:32 am-8:50 am

2 stops21h 18m

Belfast City

Wed 9/3

8:15 pm-11:15 am

1 stop20h 00m

$539

BostonBelfast

BOS - BHD

BOSBHD

Boston Logan Intl

Wed 8/27

12:54 pm-11:55 am

2 stops18h 01m

Belfast City

Wed 9/3

8:15 pm-11:15 am

1 stop20h 00m

$541

BostonBelfast

BOS - BHD

BOSBHD

Boston Logan Intl

Fri 9/26

8:05 pm-3:30 pm

1 stop14h 25m

Belfast City

Tue 9/30

4:25 pm-11:15 am

1 stop23h 50m

$549

BostonBelfast

BOS - BHD

BOSBHD

Boston Logan Intl

Thu 1/8

7:36 pm-2:00 pm

2 stops13h 24m

Belfast City

Mon 1/12

6:35 am-4:56 pm

2 stops15h 21m

$553

BostonBelfast

BOS - BHD

BOSBHD

Boston Logan Intl

Tue 11/25

9:35 pm-4:45 pm

1 stop14h 10m

Belfast City

Sun 11/30

12:10 pm-10:46 pm

2 stops15h 36m

$577

Flights are sorted by cheapest round-trip 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 cheapest month to fly to Belfast?

In general, February is the cheapest month to fly from Boston to Belfast. Due to it being the ‘off-season’ during this time, you can expect flight prices to be around $588. If you don’t want to visit Belfast in February, then you should wait until September to fly from Boston, when ticket prices are also cheap, with an average price of $651.

What is the cheapest day to depart on your flight to Belfast?

The cheapest day to depart from Boston to Belfast is on a Wednesday when prices can be found for as low as $641. When flying out on a Saturday, the most expensive travel day of the week, you can expect to see flight prices from Boston to Belfast for around $968.

What is the cheapest time of day to depart on your flight to Belfast?

Our data shows that the cheapest Boston to Belfast flights are usually those with departure times in the afternoon. Our users have found flights to Belfast in the afternoon for as low as $636. Try not to purchase tickets in the evening because they tend to be around $685. Of course, these prices can vary depending on the time of year and what airport you fly to.

Cheap Boston to Belfast flight deals and tips

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

Best Price Found	$265
Fastest flight time	10h 05m
Direct flights	None
Airports in Belfast	2 airports

The best one-way flight to Belfast from Boston in the past 72 hours is $265. The best round-trip flight deal from Boston to Belfast found on momondo in the last 72 hours is $519.

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

There are no direct flights from Boston to Belfast. Popular non-direct routes for this connection are Boston Logan Intl Airport - Belfast City Airport and Boston Logan Intl Airport - Belfast Intl Airport.

There are 2 airports near Belfast: Belfast Intl (BFS), Belfast City (BHD)

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How far is Boston Logan Intl to Belfast by plane?
A flight from Boston Logan Intl to Belfast will travel around 2981.1 mi. Flights usually cover this in 10h 05m, depending on flying conditions and air traffic around both airports.
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 refresh daily.
How many operators does momondo search for flights from Boston Logan Intl Airport to Belfast?
The number of operators available for flights from Boston Logan Intl Airport to Belfast is 2 as of August 2025.
How old do you have to be to fly from Boston Logan Intl Airport to Belfast?
The minimum age a child must be to fly alone is five but airlines that offer an unaccompanied minor (UNMR) service will have their own age restrictions, including rules around flight length, timings, and stopovers. We always recommend checking with the individual airline you are booking with to 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.

Best airlines flying from Boston to Belfast

Compare and see reviews for airlines that fly from Boston to Belfast with momondo

Airline	Rating	Free Cancellation	Price
British Airways	PriceFrom $565	Free Cancellation	Rating 6.6 7,224 reviews		Search British Airways flights
American Airlines	PriceFrom $586	Free Cancellation	Rating 7.2 10,000 reviews		Search American Airlines flights

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?

Yes. momondo enables you to select and highlight flights to Belfast from Boston with this policy.

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

Once all potential Boston to Belfast flight options are in front of you, momondo lets you sort and filter flights based on preferences such as airline, price and flight times amongst many other options.

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

Price alerts on flights to Belfast from Boston are quick and easy to set up on momondo. Simply perform a search and select the price alert feature. It is as simple as that.