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Cheap flights from Massachusetts to Belfast from $497

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 12/26. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
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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
8:50 pm - 8:10 pmBOS-BFS
19h 20m2 stops
Multiple Airlines Logo
6:30 am - 6:50 pmBFS-BOS
16h 20m2 stops
$614Multiple Airlines
Find Deal
Sun, Mar 8 - Fri, Mar 13
Multiple Airlines Logo
8:50 pm - 6:55 pmBOS-BFS
18h 05m2 stops
Multiple Airlines Logo
6:00 am - 9:10 pmBFS-BOS
43h 10m3 stops
$777Multiple Airlines
Find Deal
Sun, Mar 8 - Fri, Mar 13
Multiple Airlines Logo
6:10 pm - 6:55 pmBOS-BFS
20h 45m2 stops
Multiple Airlines Logo
8:10 pm - 7:50 pmBFS-BOS
28h 40m3 stops
$794Multiple Airlines
Find Deal
Sun, Mar 15 - Sun, Mar 29
Multiple Airlines Logo
6:05 pm - 11:20 pmBOS-BFS
24h 15m3 stops
Multiple Airlines Logo
12:05 pm - 8:45 pmBFS-BOS
37h 40m3 stops
$821Multiple Airlines
Find Deal
Fri, May 1 - Sat, May 9
Multiple Airlines Logo
6:05 pm - 9:00 pmBOS-BFS
21h 55m2 stops
Multiple Airlines Logo
12:05 pm - 2:40 pmBFS-BOS
31h 35m3 stops
$844Multiple Airlines
Find Deal
Fri, May 1 - Sat, May 9
Multiple Airlines Logo
8:50 pm - 3:10 pmBOS-BFS
14h 20m2 stops
Multiple Airlines Logo
9:00 pm - 3:35 pmBFS-BOS
46h 35m3 stops
$920Multiple Airlines
Find Deal
Fri, Mar 13 - Fri, Mar 20
Multiple Airlines Logo
8:50 pm - 3:10 pmBOS-BFS
14h 20m2 stops
Multiple Airlines Logo
8:05 am - 7:55 pmBFS-BOS
15h 50m2 stops
$962Multiple Airlines
Find Deal
Fri, Mar 13 - Fri, Mar 20
Multiple Airlines Logo
6:05 pm - 9:00 pmBOS-BFS
21h 55m2 stops
Multiple Airlines Logo
8:30 am - 10:00 pmBFS-BOS
18h 30m2 stops
$983Multiple Airlines
Find Deal
Fri, May 1 - Sat, May 9
Multiple Airlines Logo
5:30 am - 6:45 pmBOS-BFS
33h 15m3 stops
Multiple Airlines Logo
9:00 pm - 3:35 pmBFS-BOS
46h 35m3 stops
$1,009Multiple Airlines
Find Deal
Fri, Mar 13 - Fri, Mar 20
Multiple Airlines Logo
6:10 pm - 6:55 pmBOS-BFS
20h 45m2 stops
Multiple Airlines Logo
9:55 am - 10:10 pmBFS-BOS
17h 15m2 stops
$1,019Multiple Airlines
Find Deal
Sun, Mar 15 - Sun, Mar 29

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 November 3, 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 3/8

8:50 pm-8:10 pm

2 stops19h 20m

Belfast Intl

Fri 3/13

6:30 am-6:50 pm

2 stops16h 20m

$614

BostonBelfast

BOS - BFS

BOSBFS

Boston Logan Intl

Sun 3/8

8:50 pm-6:55 pm

2 stops18h 05m

Belfast Intl

Fri 3/13

6:00 am-9:10 pm

3 stops43h 10m

$777

BostonBelfast

BOS - BFS

BOSBFS

Boston Logan Intl

Sun 3/15

6:10 pm-6:55 pm

2 stops20h 45m

Belfast Intl

Sun 3/29

8:10 pm-7:50 pm

3 stops28h 40m

$794

BostonBelfast

BOS - BFS

BOSBFS

Boston Logan Intl

Fri 5/1

6:05 pm-11:20 pm

3 stops24h 15m

Belfast Intl

Sat 5/9

12:05 pm-8:45 pm

3 stops37h 40m

$821

BostonBelfast

BOS - BFS

BOSBFS

Boston Logan Intl

Fri 5/1

6:05 pm-9:00 pm

2 stops21h 55m

Belfast Intl

Sat 5/9

12:05 pm-2:40 pm

3 stops31h 35m

$844

BostonBelfast

BOS - BFS

BOSBFS

Boston Logan Intl

Fri 3/13

8:50 pm-3:10 pm

2 stops14h 20m

Belfast Intl

Fri 3/20

9:00 pm-3:35 pm

3 stops46h 35m

$920

BostonBelfast

BOS - BFS

BOSBFS

Boston Logan Intl

Fri 3/13

8:50 pm-3:10 pm

2 stops14h 20m

Belfast Intl

Fri 3/20

8:05 am-7:55 pm

2 stops15h 50m

$962

BostonBelfast

BOS - BFS

BOSBFS

Boston Logan Intl

Fri 5/1

6:05 pm-9:00 pm

2 stops21h 55m

Belfast Intl

Sat 5/9

8:30 am-10:00 pm

2 stops18h 30m

$983

BostonBelfast

BOS - BFS

BOSBFS

Boston Logan Intl

Fri 3/13

5:30 am-6:45 pm

3 stops33h 15m

Belfast Intl

Fri 3/20

9:00 pm-3:35 pm

3 stops46h 35m

$1,009

BostonBelfast

BOS - BFS

BOSBFS

Boston Logan Intl

Sun 3/15

6:10 pm-6:55 pm

2 stops20h 45m

Belfast Intl

Sun 3/29

9:55 am-10:10 pm

2 stops17h 15m

$1,019

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 18 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 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 $617. If you’re not able to fly to Belfast Intl Airport in September, then August is your next best option. Flight prices from Massachusetts to Belfast Intl Airport during August average around $645.

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

Direct flights

None
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 $538Free CancellationRating
6.7
7,494 reviews
Search British Airways flights
American AirlinesPriceFrom $565Free CancellationRating
7.2
11,036 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.

An easier way to manage your Belfast Intl Airport trip

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