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Cheap flights from Massachusetts to Belfast from $325

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 9/28. 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
0 bags

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Find the cheapest flights from Massachusetts to Belfast

Cheap round-trip flights

Enter your travel dates to find the best prices.
Multiple Airlines Logo
11:35 pm - 11:30 pm
BOS
-
BFS
18h 55m
2 stops
Multiple Airlines Logo
5:45 pm - 9:45 pm
BFS
-
BOS
33h 00m
1 stop
$822Multiple Airlines
Thu, Jul 16 - Wed, Jul 29
Multiple Airlines Logo
11:00 pm - 8:40 pm
BOS
-
BFS
16h 40m
2 stops
Multiple Airlines Logo
9:35 am - 9:15 pm
BFS
-
BOS
16h 40m
1 stop
$835Multiple Airlines
Mon, Aug 31 - Wed, Sep 9
Multiple Airlines Logo
11:00 pm - 9:00 pm
BOS
-
BFS
17h 00m
2 stops
Multiple Airlines Logo
9:35 am - 9:15 pm
BFS
-
BOS
16h 40m
1 stop
$852Multiple Airlines
Sun, Aug 30 - Wed, Sep 9
Multiple Airlines Logo
8:20 pm - 4:50 pm
BOS
-
BHD
16h 30m
1 stop
Multiple Airlines Logo
7:20 am - 5:50 pm
BHD
-
BOS
15h 30m
2 stops
$865Multiple Airlines
Wed, Oct 28 - Mon, Nov 2
British Airways Logo
9:50 pm - 3:20 pm
BOS
-
BHD
12h 30m
1 stop
British Airways Logo
9:35 am - 8:05 pm
BHD
-
BOS
15h 30m
1 stop
$892British Airways
Tue, Aug 25 - Thu, Sep 10
British Airways Logo
9:50 pm - 12:55 pm
BOS
-
BHD
10h 05m
1 stop
British Airways Logo
11:35 am - 5:00 pm
BHD
-
BOS
10h 25m
1 stop
$896British Airways
Mon, Sep 28 - Mon, Oct 5
American Airlines Logo
7:45 pm - 3:30 pm
BDL
-
BHD
14h 45m
2 stops
American Airlines Logo
6:30 am - 8:59 pm
BHD
-
BDL
19h 29m
2 stops
$949American Airlines
Thu, Sep 10 - Thu, Sep 17
Delta Logo
11:35 am - 4:55 pm
BDL
-
BHD
24h 20m
2 stops
Delta Logo
9:50 am - 8:49 am
BHD
-
BDL
27h 59m
2 stops
$1,067Delta
Sun, Jul 19 - Wed, Jul 29
American Airlines Logo
5:23 pm - 10:30 am
ORH
-
BHD
36h 07m
2 stops
American Airlines Logo
6:30 am - 9:07 pm
BHD
-
ORH
19h 37m
2 stops
$1,088American Airlines
Sat, Sep 5 - Fri, Sep 11
Delta Logo
8:05 am - 4:55 pm
BDL
-
BHD
27h 50m
2 stops
Delta Logo
9:50 am - 8:49 am
BHD
-
BDL
27h 59m
2 stops
$1,183Delta
Thu, Jul 16 - Wed, Jul 29

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KLM flights from Massachusetts to Belfast

Our best KLM deals on Massachusetts to Belfast flight tickets
KLM
May 9
BOS6:50 pmBoston Logan Intl
17h 05m
1 stop
BHD4:55 pmBelfast City
May 16
BHD5:30 pmBelfast City
27h 55m
1 stop
BOS4:25 pmBoston Logan Intl
$936
KLM
Oct 29
BOS8:45 pmBoston Logan Intl
16h 05m
2 stops
BHD4:50 pmBelfast City
Nov 2
BHD5:20 pmBelfast City
25h 05m
1 stop
BOS1:25 pmBoston Logan Intl
$1,040
KLM
Sep 2
BOS1:10 pmBoston Logan Intl
15h 10m
2 stops
BHD9:20 amBelfast City
Sep 8
BHD5:30 pmBelfast City
24h 49m
1 stop
BOS1:19 pmBoston Logan Intl
$1,109

Delta flights from Massachusetts to Belfast

Our best Delta deals on Massachusetts to Belfast flight tickets
Delta
Aug 30
BOS7:30 amBoston Logan Intl
20h 50m
2 stops
BHD9:20 amBelfast City
Sep 9
BHD5:30 pmBelfast City
28h 05m
1 stop
BOS4:35 pmBoston Logan Intl
$930
Delta
Jul 18
BOS4:40 pmBoston Logan Intl
11h 40m
1 stop
BHD9:20 amBelfast City
Jul 30
BHD5:30 pmBelfast City
28h 10m
1 stop
BOS4:40 pmBoston Logan Intl
$1,066
Delta
Jul 19
BDL11:35 amHartford Bradley Intl
24h 20m
2 stops
BHD4:55 pmBelfast City
Jul 29
BHD9:50 amBelfast City
27h 59m
2 stops
BDL8:49 amHartford Bradley Intl
$1,067

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 May 3, 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

Thu 7/16

11:35 pm-11:30 pm

2 stops18h 55m

Belfast Intl

Wed 7/29

5:45 pm-9:45 pm

1 stop33h 00m

$822

BostonBelfast

BOS - BFS

BOSBFS

Boston Logan Intl

Mon 8/31

11:00 pm-8:40 pm

2 stops16h 40m

Belfast Intl

Wed 9/9

9:35 am-9:15 pm

1 stop16h 40m

$835

BostonBelfast

BOS - BFS

BOSBFS

Boston Logan Intl

Sun 8/30

11:00 pm-9:00 pm

2 stops17h 00m

Belfast Intl

Wed 9/9

9:35 am-9:15 pm

1 stop16h 40m

$852

BostonBelfast

BOS - BHD

BOSBHD

Boston Logan Intl

Wed 10/28

8:20 pm-4:50 pm

1 stop16h 30m

Belfast City

Mon 11/2

7:20 am-5:50 pm

2 stops15h 30m

$865

BostonBelfast

BOS - BHD

BOSBHD

Boston Logan Intl

Tue 8/25

9:50 pm-3:20 pm

1 stop12h 30m

Belfast City

Thu 9/10

9:35 am-8:05 pm

1 stop15h 30m

$892
Quickest round-trip

BostonBelfast

BOS - BHD

BOSBHD

Boston Logan Intl

Mon 9/28

9:50 pm-12:55 pm

1 stop10h 05m

Belfast City

Mon 10/5

11:35 am-5:00 pm

1 stop10h 25m

$896

HartfordBelfast

BDL - BHD

BDLBHD

Hartford Bradley Intl

Thu 9/10

7:45 pm-3:30 pm

2 stops14h 45m

Belfast City

Thu 9/17

6:30 am-8:59 pm

2 stops19h 29m

$949

HartfordBelfast

BDL - BHD

BDLBHD

Hartford Bradley Intl

Sun 7/19

11:35 am-4:55 pm

2 stops24h 20m

Belfast City

Wed 7/29

9:50 am-8:49 am

2 stops27h 59m

$1,067

WorcesterBelfast

ORH - BHD

ORHBHD

Worcester

Sat 9/5

5:23 pm-10:30 am

2 stops36h 07m

Belfast City

Fri 9/11

6:30 am-9:07 pm

2 stops19h 37m

$1,088

HartfordBelfast

BDL - BHD

BDLBHD

Hartford Bradley Intl

Thu 7/16

8:05 am-4:55 pm

2 stops27h 50m

Belfast City

Wed 7/29

9:50 am-8:49 am

2 stops27h 59m

$1,183

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 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, February 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 $0. If you don’t want to visit Belfast in February, then you should wait until March to fly from Massachusetts, when ticket prices are also cheap, with an average price of $513.

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

10h 05m

Direct flights

None
The fastest flight from Massachusetts to Belfast takes 10h 05m
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
7,940 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