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Cheap flights from Massachusetts to Belfast from $280

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 1/31. 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
7:50 pm - 6:15 pm
BOS
-
BFS
17h 25m2 stops
Multiple Airlines Logo
6:30 am - 5:50 pm
BFS
-
BOS
16h 20m2 stops
$569Multiple Airlines
Sun, Jan 11 - Tue, Jan 27
Multiple Airlines Logo
8:00 pm - 6:15 pm
BOS
-
BFS
17h 15m1 stop
Multiple Airlines Logo
6:00 am - 4:00 pm
BFS
-
BOS
15h 00m1 stop
$586Multiple Airlines
Sun, Jan 11 - Tue, Jan 27
Multiple Airlines Logo
5:05 pm - 6:15 pm
BOS
-
BFS
20h 10m2 stops
Multiple Airlines Logo
6:00 am - 4:00 pm
BFS
-
BOS
15h 00m1 stop
$587Multiple Airlines
Sun, Jan 11 - Tue, Jan 27
Multiple Airlines Logo
7:50 pm - 6:15 pm
BOS
-
BFS
17h 25m2 stops
Multiple Airlines Logo
6:30 am - 5:50 pm
BFS
-
BOS
16h 20m2 stops
$604Multiple Airlines
Sun, Jan 11 - Tue, Jan 27
Multiple Airlines Logo
5:10 pm - 6:55 pm
BOS
-
BFS
20h 45m2 stops
Multiple Airlines Logo
6:30 am - 6:59 pm
BFS
-
BOS
17h 29m2 stops
$635Multiple Airlines
Sun, Jan 11 - Tue, Jan 27
Multiple Airlines Logo
7:30 am - 9:40 am
BOS
-
BFS
21h 10m1 stop
Multiple Airlines Logo
6:00 am - 9:55 pm
BFS
-
BOS
20h 55m1 stop
$646Multiple Airlines
Sun, Jan 11 - Tue, Jan 27
Multiple Airlines Logo
7:50 pm - 9:55 pm
BOS
-
BFS
21h 05m2 stops
Multiple Airlines Logo
6:30 am - 2:35 pm
BFS
-
BOS
37h 05m3 stops
$679Multiple Airlines
Sun, Jan 11 - Tue, Jan 27
Multiple Airlines Logo
7:50 pm - 8:20 pm
BOS
-
BFS
19h 30m2 stops
Multiple Airlines Logo
5:45 am - 2:35 pm
BFS
-
BOS
37h 50m3 stops
$699Multiple Airlines
Sun, Jan 11 - Tue, Jan 27
Multiple Airlines Logo
7:50 pm - 8:40 pm
BOS
-
BFS
19h 50m3 stops
Multiple Airlines Logo
5:45 am - 2:35 pm
BFS
-
BOS
37h 50m3 stops
$731Multiple Airlines
Sun, Jan 11 - Tue, Jan 27
Multiple Airlines Logo
7:50 pm - 8:40 pm
BOS
-
BFS
19h 50m3 stops
Multiple Airlines Logo
5:45 am - 2:35 pm
BFS
-
BOS
37h 50m3 stops
$733Multiple Airlines
Sun, Jan 11 - Tue, Jan 27

momondo Fare Finder

 
Customize your flight search to find flights from Massachusetts to Belfast Intl Airport 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 December 18, 2025.
Use the filters below to find and compare flights from Massachusetts to Belfast Intl Airport that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

BostonBelfast

BOS - BFS

BOSBFS

Boston Logan Intl

Sun 1/11

7:50 pm-6:15 pm

2 stops17h 25m

Belfast Intl

Tue 1/27

6:30 am-5:50 pm

2 stops16h 20m

$569

BostonBelfast

BOS - BFS

BOSBFS

Boston Logan Intl

Sun 1/11

8:00 pm-6:15 pm

1 stop17h 15m

Belfast Intl

Tue 1/27

6:00 am-4:00 pm

1 stop15h 00m

$586

BostonBelfast

BOS - BFS

BOSBFS

Boston Logan Intl

Sun 1/11

5:05 pm-6:15 pm

2 stops20h 10m

Belfast Intl

Tue 1/27

6:00 am-4:00 pm

1 stop15h 00m

$587

BostonBelfast

BOS - BFS

BOSBFS

Boston Logan Intl

Sun 1/11

7:50 pm-6:15 pm

2 stops17h 25m

Belfast Intl

Tue 1/27

6:30 am-5:50 pm

2 stops16h 20m

$604

BostonBelfast

BOS - BFS

BOSBFS

Boston Logan Intl

Sun 1/11

5:10 pm-6:55 pm

2 stops20h 45m

Belfast Intl

Tue 1/27

6:30 am-6:59 pm

2 stops17h 29m

$635

BostonBelfast

BOS - BFS

BOSBFS

Boston Logan Intl

Sun 1/11

7:30 am-9:40 am

1 stop21h 10m

Belfast Intl

Tue 1/27

6:00 am-9:55 pm

1 stop20h 55m

$646

BostonBelfast

BOS - BFS

BOSBFS

Boston Logan Intl

Sun 1/11

7:50 pm-9:55 pm

2 stops21h 05m

Belfast Intl

Tue 1/27

6:30 am-2:35 pm

3 stops37h 05m

$679

BostonBelfast

BOS - BFS

BOSBFS

Boston Logan Intl

Sun 1/11

7:50 pm-8:20 pm

2 stops19h 30m

Belfast Intl

Tue 1/27

5:45 am-2:35 pm

3 stops37h 50m

$699

BostonBelfast

BOS - BFS

BOSBFS

Boston Logan Intl

Sun 1/11

7:50 pm-8:40 pm

3 stops19h 50m

Belfast Intl

Tue 1/27

5:45 am-2:35 pm

3 stops37h 50m

$731

BostonBelfast

BOS - BFS

BOSBFS

Boston Logan Intl

Sun 1/11

7:50 pm-8:40 pm

3 stops19h 50m

Belfast Intl

Tue 1/27

5:45 am-2:35 pm

3 stops37h 50m

$733

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 16 resultsSorted by cheapest first
1
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See travel insights to Belfast from

How to get the cheapest flight ticket from Massachusetts 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 September is, on average, the cheapest month to fly to Belfast Intl Airport from Massachusetts, with most prices found around $614. If you’re not able to fly to Belfast Intl Airport in September, then March is your next best option. Flight prices from Massachusetts to Belfast Intl Airport during March average around $641.

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

The cheapest day to depart on your flight to Belfast Intl Airport is on a Wednesday when prices can be found for as low as $641. This is often the case because there is less demand to fly during this day of the week. When flying out on a Saturday, the most expensive travel day of the week, you can expect to see flight prices from Massachusetts to Belfast Intl Airport for around $968.

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

In the afternoon is the cheapest time of day to fly from Massachusetts to Belfast Intl Airport when you can find flight prices for as low as $636. Flying to Belfast Intl Airport in the afternoon is an ideal time because this is during off-peak travel hours. In contrast, the most expensive time of day to depart to Belfast Intl Airport is in the evening when prices are around $685.

Cheap Massachusetts to Belfast Intl Airport flight deals and tips

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

Fastest flight time

9h 15m

Direct flights

None
The fastest flight from Massachusetts to Belfast Intl Airport takes 9h 15m
There are no direct flights from Massachusetts to Belfast Intl Airport. There are no popular flight routes from Massachusetts to Belfast Intl Airport.
Search flight deals

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

    Prices for flights from Massachusetts to Belfast Intl Airport are updated daily.

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

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

    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 Intl Airport.

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

    The required travel and health documents for your Belfast Intl Airport 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 Intl Airport. We recommend that you seek guidance from your airline or a reliable third party such as IATA.

Best airlines flying from Massachusetts to Belfast Intl Airport

Compare and see reviews for airlines that fly from Massachusetts to Belfast Intl Airport with momondo
Airline
Rating
Free Cancellation
Price
British AirwaysPriceFrom $542Free CancellationRating
6.7
7,585 reviews
Search British Airways flights
American AirlinesPriceFrom $565Free CancellationRating
7.2
11,055 reviews
Search American Airlines flights

Traveling to a place near Belfast?

Book flights to Belfast if you plan to visit one of these locations
Armagh
Cookstown
Newry
Dungannon

Why use momondo?

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

momondo collates all your flight options in one place and lets you filter them to find the perfect flight from Massachusetts to Belfast. momondo saves you time and could save you money on your trip.

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

All flight searches from Massachusetts to Belfast on momondo can be filtered to show those which offer flexible booking policies.

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

momondo provides multiple filters to help you find the best flight to Belfast from Massachusetts. Filter by price, airline, airports, cabin, aircraft, payment method, number of stops and more.

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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