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Cheap flights from Boston to Belfast from $361

1 adult
1 adult, Economy, 0 bags

Discover deals from 900+ travel sites with momondo.

Find the cheapest flights from Boston to Belfast

Cheap round-trip flights

Enter your travel dates to find the best prices.
British Airways Logo
7:35 pm - 1:35 pmBOS  Boston Logan Intl-BHD Belfast City
13h 00m1 stop London Heathrow
British Airways Logo
9:35 am - 10:35 pmBHD  Belfast City-BOS Boston Logan Intl
18h 00m1 stop London Heathrow
$946British Airways
Wed, Apr 14 - Fri, Apr 23
British Airways Logo
7:35 pm - 1:35 pmBOS  Boston Logan Intl-BHD Belfast City
13h 00m1 stop London Heathrow
British Airways Logo
6:30 am - 10:35 pmBHD  Belfast City-BOS Boston Logan Intl
21h 05m1 stop London Heathrow
$947British Airways
Wed, Apr 14 - Fri, Apr 23
British Airways Logo
6:35 pm - 10:05 amBOS  Boston Logan Intl-BHD Belfast City
10h 30m1 stop London Heathrow
British Airways Logo
6:35 am - 2:20 pmBHD  Belfast City-BOS Boston Logan Intl
12h 45m1 stop London Heathrow
$948British Airways
Wed, Dec 2 - Wed, Dec 9
British Airways Logo
9:15 am - 12:00 pmBOS  Boston Logan Intl-BHD Belfast City
21h 45m2 stops Philadelphia London Heathrow
British Airways Logo
6:30 am - 1:15 pmBHD  Belfast City-BOS Boston Logan Intl
11h 45m1 stop London Heathrow
$957British Airways
Wed, Apr 14 - Fri, Apr 23
British Airways Logo
7:35 pm - 12:00 pmBOS  Boston Logan Intl-BHD Belfast City
11h 25m1 stop London Heathrow
British Airways Logo
6:30 am - 7:30 pmBHD  Belfast City-BOS Boston Logan Intl
18h 00m2 stops London Heathrow Philadelphia
$962British Airways
Wed, Apr 14 - Fri, Apr 23
British Airways Logo
7:35 pm - 12:00 pmBOS  Boston Logan Intl-BHD Belfast City
11h 25m1 stop London Heathrow
British Airways Logo
6:30 am - 7:30 pmBHD  Belfast City-BOS Boston Logan Intl
18h 00m2 stops London Heathrow Philadelphia
$963British Airways
Wed, Apr 14 - Fri, Apr 23
British Airways Logo
7:59 pm - 3:40 pmBOS  Boston Logan Intl-BHD Belfast City
14h 41m2 stops New York John F Kennedy Intl London Heathrow
British Airways Logo
6:30 am - 5:00 pmBHD  Belfast City-BOS Boston Logan Intl
15h 30m2 stops London Heathrow New York John F Kennedy Intl
$964British Airways
Wed, Apr 14 - Fri, Apr 23
British Airways Logo
5:35 pm - 1:15 pmBOS  Boston Logan Intl-BHD Belfast City
14h 40m2 stops New York John F Kennedy Intl London Heathrow
British Airways Logo
3:45 pm - 9:50 pmBHD  Belfast City-BOS Boston Logan Intl
11h 05m1 stop London Heathrow
$965British Airways
Wed, Dec 2 - Wed, Dec 9
British Airways Logo
6:35 pm - 10:50 amBOS  Boston Logan Intl-BHD Belfast City
11h 15m1 stop London Heathrow
British Airways Logo
5:35 pm - 7:40 pmBHD  Belfast City-BOS Boston Logan Intl
31h 05m1 stop London Heathrow
$970British Airways
Mon, Jan 25 - Mon, Feb 1
British Airways Logo
6:35 pm - 10:50 amBOS  Boston Logan Intl-BHD Belfast City
11h 15m1 stop London Heathrow
British Airways Logo
5:35 pm - 7:40 pmBHD  Belfast City-BOS Boston Logan Intl
31h 05m1 stop London Heathrow
$977British Airways
Mon, Jan 25 - Mon, Feb 1

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Aer Lingus flights from Boston to Belfast

Our best Aer Lingus deals on Boston to Belfast flight tickets
Aer Lingus
Jan 12
BOS9:10 pmBoston Logan Intl
14h 30m
2 stops
BHD4:40 pmBelfast City
Jan 15
BHD6:50 amBelfast City
17h 25m
2 stops
BOS7:15 pmBoston Logan Intl
$1,175
Aer Lingus
Dec 20
BOS9:20 pmBoston Logan Intl
15h 20m
2 stops
BHD5:40 pmBelfast City
Dec 28
BHD6:20 pmBelfast City
24h 35m
2 stops
BOS1:55 pmBoston Logan Intl
$1,294
Aer Lingus
Dec 20
BOS5:15 pmBoston Logan Intl
14h 55m
2 stops
BHD1:10 pmBelfast City
Dec 28
BHD6:20 pmBelfast City
29h 45m
2 stops
BOS7:05 pmBoston Logan Intl
$1,300

British Airways flights from Boston to Belfast

Our best British Airways deals on Boston to Belfast flight tickets
British Airways
Apr 14
BOS7:35 pmBoston Logan Intl
13h 00m
1 stop
BHD1:35 pmBelfast City
Apr 23
BHD9:35 amBelfast City
18h 00m
1 stop
BOS10:35 pmBoston Logan Intl
$946
British Airways
Apr 14
BOS7:35 pmBoston Logan Intl
13h 00m
1 stop
BHD1:35 pmBelfast City
Apr 23
BHD6:30 amBelfast City
21h 05m
1 stop
BOS10:35 pmBoston Logan Intl
$947
British Airways
Dec 2
BOS6:35 pmBoston Logan Intl
10h 30m
1 stop
BHD10:05 amBelfast City
Dec 9
BHD6:35 amBelfast City
12h 45m
1 stop
BOS2:20 pmBoston Logan Intl
$948

momondo Fare Finder

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

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Cheapest round-trip

BostonBelfast

BOS Boston Logan Intl - BHD Belfast City

BOSBHD

Boston Logan Intl

Wed 4/14

7:35 pm-1:35 pm

1 stop13h 00m

Belfast City

Fri 4/23

9:35 am-10:35 pm

1 stop18h 00m

$946

BostonBelfast

BOS Boston Logan Intl - BHD Belfast City

BOSBHD

Boston Logan Intl

Wed 4/14

7:35 pm-1:35 pm

1 stop13h 00m

Belfast City

Fri 4/23

6:30 am-10:35 pm

1 stop21h 05m

$947
Quickest round-trip

BostonBelfast

BOS Boston Logan Intl - BHD Belfast City

BOSBHD

Boston Logan Intl

Wed 12/2

6:35 pm-10:05 am

1 stop10h 30m

Belfast City

Wed 12/9

6:35 am-2:20 pm

1 stop12h 45m

$948

BostonBelfast

BOS Boston Logan Intl - BHD Belfast City

BOSBHD

Boston Logan Intl

Wed 4/14

9:15 am-12:00 pm

2 stops21h 45m

Belfast City

Fri 4/23

6:30 am-1:15 pm

1 stop11h 45m

$957

BostonBelfast

BOS Boston Logan Intl - BHD Belfast City

BOSBHD

Boston Logan Intl

Wed 4/14

7:35 pm-12:00 pm

1 stop11h 25m

Belfast City

Fri 4/23

6:30 am-7:30 pm

2 stops18h 00m

$962

BostonBelfast

BOS Boston Logan Intl - BHD Belfast City

BOSBHD

Boston Logan Intl

Wed 4/14

7:35 pm-12:00 pm

1 stop11h 25m

Belfast City

Fri 4/23

6:30 am-7:30 pm

2 stops18h 00m

$963

BostonBelfast

BOS Boston Logan Intl - BHD Belfast City

BOSBHD

Boston Logan Intl

Wed 4/14

7:59 pm-3:40 pm

2 stops14h 41m

Belfast City

Fri 4/23

6:30 am-5:00 pm

2 stops15h 30m

$964

BostonBelfast

BOS Boston Logan Intl - BHD Belfast City

BOSBHD

Boston Logan Intl

Wed 12/2

5:35 pm-1:15 pm

2 stops14h 40m

Belfast City

Wed 12/9

3:45 pm-9:50 pm

1 stop11h 05m

$965

BostonBelfast

BOS Boston Logan Intl - BHD Belfast City

BOSBHD

Boston Logan Intl

Mon 1/25

6:35 pm-10:50 am

1 stop11h 15m

Belfast City

Mon 2/1

5:35 pm-7:40 pm

1 stop31h 05m

$970

BostonBelfast

BOS Boston Logan Intl - BHD Belfast City

BOSBHD

Boston Logan Intl

Mon 1/25

6:35 pm-10:50 am

1 stop11h 15m

Belfast City

Mon 2/1

5:35 pm-7:40 pm

1 stop31h 05m

$977

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
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See travel insights to Belfast from

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

What is the cheapest month to fly to Belfast?

In general, July 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 $0. If you don’t want to visit Belfast in July, then you should wait until February to fly from Boston, when ticket prices are also cheap, with an average price of $0.

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

$361

Fastest flight time

10h 45m

Direct flights

None
The best one-way flight to Belfast from Boston in the past 72 hours is $361. The best round-trip flight deal from Boston to Belfast found on momondo in the last 72 hours is $946.
The fastest flight from Boston to Belfast takes 10h 45m
There are no direct flights from Boston to Belfast. There are no popular flight routes from Boston to Belfast.
Search flight deals

Frequently asked questions about flying from Boston to Belfast

  • 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 45m, 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 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 AirwaysPriceFrom $596Free CancellationRating
6.7
8,282 reviews
Search British Airways 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.

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Find better results for your trip to the United Kingdom

Fly into one of these airports located in Belfast

Belfast Intl Airport
Belfast City Airport