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Cheap flights from Massachusetts to Belfast from $320

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 9/11. 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
8:50 pm - 11:05 pm
BOS
-
BFS
21h 15m
2 stops
Multiple Airlines Logo
9:10 am - 2:45 pm
BFS
-
BOS
34h 35m
2 stops
$867Multiple Airlines
Thu, Oct 1 - Mon, Oct 5
Multiple Airlines Logo
8:50 pm - 7:30 pm
BOS
-
BFS
17h 40m
2 stops
Multiple Airlines Logo
8:40 am - 2:45 pm
BFS
-
BOS
35h 05m
3 stops
$883Multiple Airlines
Thu, Oct 1 - Mon, Oct 5
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
$888Multiple Airlines
Thu, Jul 16 - Wed, Jul 29
Multiple Airlines Logo
8:50 pm - 7:30 pm
BOS
-
BFS
17h 40m
3 stops
Multiple Airlines Logo
8:40 am - 2:45 pm
BFS
-
BOS
35h 05m
3 stops
$893Multiple Airlines
Thu, Oct 1 - Mon, Oct 5
Multiple Airlines Logo
8:50 pm - 10:50 pm
BOS
-
BFS
21h 00m
3 stops
Multiple Airlines Logo
10:00 pm - 9:45 pm
BFS
-
BOS
28h 45m
3 stops
$938Multiple Airlines
Sun, Aug 16 - Sun, Aug 30
Multiple Airlines Logo
8:50 pm - 9:20 pm
BOS
-
BFS
19h 30m
2 stops
Multiple Airlines Logo
10:00 pm - 9:45 pm
BFS
-
BOS
28h 45m
3 stops
$958Multiple Airlines
Sun, Aug 16 - Sun, Aug 30
Multiple Airlines Logo
9:15 pm - 4:55 pm
BOS
-
BFS
14h 40m
2 stops
Multiple Airlines Logo
10:30 am - 8:20 pm
BFS
-
BOS
14h 50m
1 stop
$987Multiple Airlines
Thu, Oct 1 - Mon, Oct 5
Multiple Airlines Logo
10:35 am - 10:30 pm
BOS
-
BFS
30h 55m
3 stops
Multiple Airlines Logo
6:35 am - 8:10 pm
BFS
-
BOS
18h 35m
2 stops
$997Multiple Airlines
Wed, Jun 3 - Wed, Jun 10
Multiple Airlines Logo
8:50 pm - 11:30 pm
BOS
-
BFS
21h 40m
3 stops
Multiple Airlines Logo
9:50 pm - 9:05 am
BFS
-
BOS
40h 15m
3 stops
$999Multiple Airlines
Thu, Jul 16 - Wed, Jul 29
Multiple Airlines Logo
11:00 pm - 6:55 pm
BOS
-
BFS
14h 55m
2 stops
Multiple Airlines Logo
9:50 pm - 9:05 am
BFS
-
BOS
40h 15m
3 stops
$1,002Multiple Airlines
Thu, Jul 16 - Wed, Jul 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 May 10, 2026.
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

Cheapest round-trip

BostonBelfast

BOS - BFS

BOSBFS

Boston Logan Intl

Thu 10/1

8:50 pm-11:05 pm

2 stops21h 15m

Belfast Intl

Mon 10/5

9:10 am-2:45 pm

2 stops34h 35m

$867

BostonBelfast

BOS - BFS

BOSBFS

Boston Logan Intl

Thu 10/1

8:50 pm-7:30 pm

2 stops17h 40m

Belfast Intl

Mon 10/5

8:40 am-2:45 pm

3 stops35h 05m

$883

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

$888

BostonBelfast

BOS - BFS

BOSBFS

Boston Logan Intl

Thu 10/1

8:50 pm-7:30 pm

3 stops17h 40m

Belfast Intl

Mon 10/5

8:40 am-2:45 pm

3 stops35h 05m

$893

BostonBelfast

BOS - BFS

BOSBFS

Boston Logan Intl

Sun 8/16

8:50 pm-10:50 pm

3 stops21h 00m

Belfast Intl

Sun 8/30

10:00 pm-9:45 pm

3 stops28h 45m

$938

BostonBelfast

BOS - BFS

BOSBFS

Boston Logan Intl

Sun 8/16

8:50 pm-9:20 pm

2 stops19h 30m

Belfast Intl

Sun 8/30

10:00 pm-9:45 pm

3 stops28h 45m

$958
Quickest round-trip

BostonBelfast

BOS - BFS

BOSBFS

Boston Logan Intl

Thu 10/1

9:15 pm-4:55 pm

2 stops14h 40m

Belfast Intl

Mon 10/5

10:30 am-8:20 pm

1 stop14h 50m

$987

BostonBelfast

BOS - BFS

BOSBFS

Boston Logan Intl

Wed 6/3

10:35 am-10:30 pm

3 stops30h 55m

Belfast Intl

Wed 6/10

6:35 am-8:10 pm

2 stops18h 35m

$997

BostonBelfast

BOS - BFS

BOSBFS

Boston Logan Intl

Thu 7/16

8:50 pm-11:30 pm

3 stops21h 40m

Belfast Intl

Wed 7/29

9:50 pm-9:05 am

3 stops40h 15m

$999

BostonBelfast

BOS - BFS

BOSBFS

Boston Logan Intl

Thu 7/16

11:00 pm-6:55 pm

2 stops14h 55m

Belfast Intl

Wed 7/29

9:50 pm-9:05 am

3 stops40h 15m

$1,002

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 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 February is, on average, the cheapest month to fly to Belfast Intl Airport from Massachusetts, with most prices found around $0. If you’re not able to fly to Belfast Intl Airport in February, then March is your next best option. Flight prices from Massachusetts to Belfast Intl Airport during March average around $513.

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

10h 00m

Direct flights

None
The fastest flight from Massachusetts to Belfast Intl Airport takes 10h 00m
There are no direct flights from Massachusetts to Belfast Intl Airport. There are no popular flight routes from Massachusetts to Belfast Intl Airport.
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Frequently asked questions about flying from Massachusetts to Belfast Intl Airport

  • 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 $534Free CancellationRating
6.7
7,964 reviews
Search British Airways flights

Traveling to a place near Belfast?

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