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Cheap flights from Massachusetts to Belfast from £378

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 26/12. 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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Cheap return flights

Enter your travel dates to find the best prices.
Multiple Airlines Logo
20:50 - 20:10BOS-BFS
19h 20m2 stops
Multiple Airlines Logo
06:30 - 18:50BFS-BOS
16h 20m2 stops
£467Multiple Airlines
Find Deal
Sun, 8 Mar - Fri, 13 Mar
Multiple Airlines Logo
20:50 - 18:55BOS-BFS
18h 05m2 stops
Multiple Airlines Logo
06:00 - 21:10BFS-BOS
43h 10m3 stops
£591Multiple Airlines
Find Deal
Sun, 8 Mar - Fri, 13 Mar
Multiple Airlines Logo
18:10 - 18:55BOS-BFS
20h 45m2 stops
Multiple Airlines Logo
20:10 - 19:50BFS-BOS
28h 40m3 stops
£604Multiple Airlines
Find Deal
Sun, 15 Mar - Sun, 29 Mar
Multiple Airlines Logo
18:05 - 23:20BOS-BFS
24h 15m3 stops
Multiple Airlines Logo
12:05 - 20:45BFS-BOS
37h 40m3 stops
£624Multiple Airlines
Find Deal
Fri, 1 May - Sat, 9 May
Multiple Airlines Logo
18:05 - 21:00BOS-BFS
21h 55m2 stops
Multiple Airlines Logo
12:05 - 14:40BFS-BOS
31h 35m3 stops
£642Multiple Airlines
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Fri, 1 May - Sat, 9 May
Multiple Airlines Logo
20:50 - 15:10BOS-BFS
14h 20m2 stops
Multiple Airlines Logo
21:00 - 15:35BFS-BOS
46h 35m3 stops
£699Multiple Airlines
Find Deal
Fri, 13 Mar - Fri, 20 Mar
Multiple Airlines Logo
20:50 - 15:10BOS-BFS
14h 20m2 stops
Multiple Airlines Logo
08:05 - 19:55BFS-BOS
15h 50m2 stops
£731Multiple Airlines
Find Deal
Fri, 13 Mar - Fri, 20 Mar
Multiple Airlines Logo
18:05 - 21:00BOS-BFS
21h 55m2 stops
Multiple Airlines Logo
08:30 - 22:00BFS-BOS
18h 30m2 stops
£747Multiple Airlines
Find Deal
Fri, 1 May - Sat, 9 May
Multiple Airlines Logo
05:30 - 18:45BOS-BFS
33h 15m3 stops
Multiple Airlines Logo
21:00 - 15:35BFS-BOS
46h 35m3 stops
£767Multiple Airlines
Find Deal
Fri, 13 Mar - Fri, 20 Mar
Multiple Airlines Logo
18:10 - 18:55BOS-BFS
20h 45m2 stops
Multiple Airlines Logo
09:55 - 22:10BFS-BOS
17h 15m2 stops
£775Multiple Airlines
Find Deal
Sun, 15 Mar - Sun, 29 Mar

momondo Fare Finder

 
Customise 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 279,928 searches. Data last updated 3 November 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 8/3

20:50-20:10

2 stops19h 20m

Belfast Intl

Fri 13/3

06:30-18:50

2 stops16h 20m

£467

BostonBelfast

BOS - BFS

BOSBFS

Boston Logan Intl

Sun 8/3

20:50-18:55

2 stops18h 05m

Belfast Intl

Fri 13/3

06:00-21:10

3 stops43h 10m

£591

BostonBelfast

BOS - BFS

BOSBFS

Boston Logan Intl

Sun 15/3

18:10-18:55

2 stops20h 45m

Belfast Intl

Sun 29/3

20:10-19:50

3 stops28h 40m

£604

BostonBelfast

BOS - BFS

BOSBFS

Boston Logan Intl

Fri 1/5

18:05-23:20

3 stops24h 15m

Belfast Intl

Sat 9/5

12:05-20:45

3 stops37h 40m

£624

BostonBelfast

BOS - BFS

BOSBFS

Boston Logan Intl

Fri 1/5

18:05-21:00

2 stops21h 55m

Belfast Intl

Sat 9/5

12:05-14:40

3 stops31h 35m

£642

BostonBelfast

BOS - BFS

BOSBFS

Boston Logan Intl

Fri 13/3

20:50-15:10

2 stops14h 20m

Belfast Intl

Fri 20/3

21:00-15:35

3 stops46h 35m

£699

BostonBelfast

BOS - BFS

BOSBFS

Boston Logan Intl

Fri 13/3

20:50-15:10

2 stops14h 20m

Belfast Intl

Fri 20/3

08:05-19:55

2 stops15h 50m

£731

BostonBelfast

BOS - BFS

BOSBFS

Boston Logan Intl

Fri 1/5

18:05-21:00

2 stops21h 55m

Belfast Intl

Sat 9/5

08:30-22:00

2 stops18h 30m

£747

BostonBelfast

BOS - BFS

BOSBFS

Boston Logan Intl

Fri 13/3

05:30-18:45

3 stops33h 15m

Belfast Intl

Fri 20/3

21:00-15:35

3 stops46h 35m

£767

BostonBelfast

BOS - BFS

BOSBFS

Boston Logan Intl

Sun 15/3

18:10-18:55

2 stops20h 45m

Belfast Intl

Sun 29/3

09:55-22:10

2 stops17h 15m

£775

Flights are sorted by cheapest return 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 £469. 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 £490.

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

The cheapest time of day to fly to Belfast Intl Airport is in the evening when flights can be purchased for as low as £482. In the afternoon is when there is more demand to fly to Belfast Intl Airport, so prices are often more expensive at around £484 per ticket.

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

    Prices for flights from Massachusetts to Belfast Intl Airport were last updated today.

  • 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 that offer an unaccompanied minor (UNMR) service may have their own age limitations. Flight duration, scheduling, and layovers are among the considerations that may influence age limits. We recommend that you double-check 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.

Travelling to a place near Belfast?

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

Why use momondo?

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

It is quick and easy to find Massachusetts to Belfast flights on momondo. We search and return numerous flight options from various airlines and agents. You can then use our filters to narrow your search until you have found the most convenient flight to Belfast that suits you.

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?

Yes. momondo can track prices for Massachusetts to Belfast flights and alert you when they change. Perform a search to set up the price alert. All that is required is a valid email address.

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