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Cheap flights from Massachusetts to Belfast from $287

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Massachusetts to Belfast departing on 7/25. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
1 adult
1 adult, Economy, 0 bags

Discover deals from 900+ travel sites with momondo.

Find the cheapest flights from Massachusetts to Belfast

Cheap round-trip flights

Enter your travel dates to find the best prices.
Multiple Airlines Logo
8:50 pm - 7:30 pm
BOS
-
BFS
17h 40m
2 stops
Multiple Airlines Logo
10:15 am - 9:05 pm
BFS
-
BOS
15h 50m
1 stop
$653Multiple Airlines
Sat, Oct 10 - Thu, Oct 22
Multiple Airlines Logo
8:50 pm - 6:45 pm
BOS
-
BFS
16h 55m
2 stops
Multiple Airlines Logo
10:15 am - 9:05 pm
BFS
-
BOS
15h 50m
1 stop
$656Multiple Airlines
Sun, Oct 4 - Thu, Oct 22
Multiple Airlines Logo
11:00 pm - 7:40 pm
BOS
-
BFS
15h 40m
2 stops
Multiple Airlines Logo
10:15 am - 9:05 pm
BFS
-
BOS
15h 50m
1 stop
$670Multiple Airlines
Wed, Oct 7 - Thu, Oct 22
Multiple Airlines Logo
8:50 pm - 9:30 pm
BOS
-
BFS
19h 40m
2 stops
Multiple Airlines Logo
10:15 am - 9:05 pm
BFS
-
BOS
15h 50m
1 stop
$708Multiple Airlines
Sat, Sep 5 - Thu, Sep 17
Multiple Airlines Logo
8:50 pm - 9:30 pm
BOS
-
BFS
19h 40m
2 stops
Multiple Airlines Logo
8:40 pm - 2:55 pm
BFS
-
BOS
23h 15m
2 stops
$718Multiple Airlines
Sat, Sep 5 - Thu, Sep 17
Multiple Airlines Logo
8:50 pm - 8:35 pm
BOS
-
BHD
18h 45m
2 stops
Multiple Airlines Logo
8:40 pm - 2:55 pm
BHD
-
BOS
23h 15m
2 stops
$751Multiple Airlines
Sat, Sep 5 - Thu, Sep 17
Multiple Airlines Logo
8:50 pm - 10:40 pm
BOS
-
BFS
20h 50m
2 stops
Multiple Airlines Logo
9:40 pm - 2:45 pm
BFS
-
BOS
46h 05m
3 stops
$761Multiple Airlines
Sat, Sep 12 - Sat, Sep 19
Multiple Airlines Logo
7:50 pm - 8:45 pm
BOS
-
BFS
19h 55m
3 stops
Multiple Airlines Logo
9:20 pm - 2:40 pm
BFS
-
BOS
46h 20m
3 stops
$775Multiple Airlines
Wed, Nov 4 - Wed, Nov 18
British Airways Logo
9:30 pm - 4:05 pm
BOS
-
BHD
13h 35m
1 stop
British Airways Logo
11:25 am - 7:40 pm
BHD
-
BOS
13h 15m
1 stop
$862British Airways
Mon, Nov 16 - Wed, Nov 25
British Airways Logo
7:19 pm - 4:05 pm
BOS
-
BHD
15h 46m
2 stops
British Airways Logo
11:25 am - 7:40 pm
BHD
-
BOS
13h 15m
1 stop
$866British Airways
Mon, Nov 16 - Wed, Nov 25

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KLM flights from Massachusetts to Belfast

Our best KLM deals on Massachusetts to Belfast flight tickets
KLM
Sep 25
BOS8:25 pmBoston Logan Intl
31h 50m
1 stop
BHD9:15 amBelfast City
Sep 28
BHD9:50 amBelfast City
32h 29m
1 stop
BOS1:19 pmBoston Logan Intl
$970
KLM
Nov 4
BOS12:55 pmBoston Logan Intl
15h 15m
2 stops
BHD9:10 amBelfast City
Nov 9
BHD9:40 amBelfast City
26h 44m
2 stops
BOS7:24 amBoston Logan Intl
$985

Delta flights from Massachusetts to Belfast

Our best Delta deals on Massachusetts to Belfast flight tickets
Delta
Oct 6
BOS4:45 pmBoston Logan Intl
11h 35m
1 stop
BHD9:20 amBelfast City
Oct 19
BHD5:30 pmBelfast City
24h 45m
1 stop
BOS1:15 pmBoston Logan Intl
$965
Delta
Nov 1
BOS7:15 pmBoston Logan Intl
16h 35m
1 stop
BHD4:50 pmBelfast City
Nov 11
BHD9:40 amBelfast City
32h 45m
1 stop
BOS1:25 pmBoston Logan Intl
$966
Delta
Nov 3
BOS3:10 pmBoston Logan Intl
20h 40m
2 stops
BHD4:50 pmBelfast City
Nov 12
BHD9:40 amBelfast City
32h 45m
1 stop
BOS1:25 pmBoston Logan Intl
$971

momondo Fare Finder

 
Customize your flight search to find flights from Massachusetts to Belfast that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, momondo users made 832,500 searches. Data last updated June 22, 2026.
Use the filters below to find and compare flights from Massachusetts to Belfast that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

BostonBelfast

BOS - BFS

BOSBFS

Boston Logan Intl

Sat 10/10

8:50 pm-7:30 pm

2 stops17h 40m

Belfast Intl

Thu 10/22

10:15 am-9:05 pm

1 stop15h 50m

$653

BostonBelfast

BOS - BFS

BOSBFS

Boston Logan Intl

Sun 10/4

8:50 pm-6:45 pm

2 stops16h 55m

Belfast Intl

Thu 10/22

10:15 am-9:05 pm

1 stop15h 50m

$656

BostonBelfast

BOS - BFS

BOSBFS

Boston Logan Intl

Wed 10/7

11:00 pm-7:40 pm

2 stops15h 40m

Belfast Intl

Thu 10/22

10:15 am-9:05 pm

1 stop15h 50m

$670

BostonBelfast

BOS - BFS

BOSBFS

Boston Logan Intl

Sat 9/5

8:50 pm-9:30 pm

2 stops19h 40m

Belfast Intl

Thu 9/17

10:15 am-9:05 pm

1 stop15h 50m

$708

BostonBelfast

BOS - BFS

BOSBFS

Boston Logan Intl

Sat 9/5

8:50 pm-9:30 pm

2 stops19h 40m

Belfast Intl

Thu 9/17

8:40 pm-2:55 pm

2 stops23h 15m

$718

BostonBelfast

BOS - BHD

BOSBHD

Boston Logan Intl

Sat 9/5

8:50 pm-8:35 pm

2 stops18h 45m

Belfast City

Thu 9/17

8:40 pm-2:55 pm

2 stops23h 15m

$751

BostonBelfast

BOS - BFS

BOSBFS

Boston Logan Intl

Sat 9/12

8:50 pm-10:40 pm

2 stops20h 50m

Belfast Intl

Sat 9/19

9:40 pm-2:45 pm

3 stops46h 05m

$761

BostonBelfast

BOS - BFS

BOSBFS

Boston Logan Intl

Wed 11/4

7:50 pm-8:45 pm

3 stops19h 55m

Belfast Intl

Wed 11/18

9:20 pm-2:40 pm

3 stops46h 20m

$775
Quickest round-trip

BostonBelfast

BOS - BHD

BOSBHD

Boston Logan Intl

Mon 11/16

9:30 pm-4:05 pm

1 stop13h 35m

Belfast City

Wed 11/25

11:25 am-7:40 pm

1 stop13h 15m

$862

BostonBelfast

BOS - BHD

BOSBHD

Boston Logan Intl

Mon 11/16

7:19 pm-4:05 pm

2 stops15h 46m

Belfast City

Wed 11/25

11:25 am-7:40 pm

1 stop13h 15m

$866

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
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How to get the cheapest flight ticket from Massachusetts 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, March is the cheapest month to fly from Massachusetts to Belfast. Due to it being the ‘off-season’ during this time, you can expect flight prices to be around $513. If you don’t want to visit Belfast in March, then you should wait until September to fly from Massachusetts, when ticket prices are also cheap, with an average price of $525.

Cheap Massachusetts to Belfast flight deals and tips

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

Fastest flight time

9h 35m

Direct flights

None
The fastest flight from Massachusetts to Belfast takes 9h 35m
There are no direct flights from Massachusetts to Belfast. There are no popular flight routes from Massachusetts to Belfast.
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Frequently asked questions about flying from Massachusetts to Belfast

  • When did momondo last update prices for flights from Massachusetts to Belfast?

    Prices for flights from Massachusetts to Belfast are updated daily.

  • How many operators does momondo search for flights from Massachusetts to Belfast?

  • How old do you have to be to fly from Massachusetts to Belfast?

    The minimum age for a child to fly alone is five, but airlines offering an unaccompanied minor (UNMR) service may have their age restrictions, such as regulations concerning flight duration, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Massachusetts to Belfast.

  • What documentation or ID do you need to fly to Belfast?

    The required travel and health documents for your Belfast trip may vary depending on your itinerary and personal circumstances. As a general rule, you should carry multiple documents, including a national ID card or driver's license and a passport valid for six months after your intended arrival at Belfast. We recommend that you seek guidance from your airline or a reliable third party such as IATA.

Best airlines flying from Massachusetts to Belfast

Compare and see reviews for airlines that fly from Massachusetts to Belfast with momondo
Airline
Rating
Free Cancellation
Price
British AirwaysPriceFrom $534Free CancellationRating
6.7
8,064 reviews
Search British Airways flights

Why use momondo?

Why should I use momondo to find a flight deal from Massachusetts to Belfast?

To find the flight that best suits your needs, momondo gathers a range of flights from a large pool of different airlines and agents; you can then use our insights and filters to find and book the right flight to Belfast from Massachusetts.

Can I find flights from Massachusetts to Belfast with flexible booking policies on momondo?

Flights from Massachusetts to Belfast with flexible booking policies can be found by using the search form above and then selecting our dedicated flexible booking filter, which will highlight only the flights where this policy is applied.

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

momondo helps you find the best flight between Massachusetts and Belfast by providing filters to narrow your choice of flights to those matching your criteria. You can select flights based on numerous factors such as price, departure and landing times, airport and airline.

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

Of course. momondo tracks the price of Massachusetts to Belfast flights. All you need is a valid email address and we will do the rest; it is that quick and easy.

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Find better results for your trip to the United Kingdom

Fly into one of these airports located in Belfast

Airports listed have a maximum distance of 12.2 mi from Belfast
Belfast Intl Airport
Belfast City Airport