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Cheap flights from Boston to Belfast from $350

1 adult
1 adult, Economy, 0 bags

Discover deals from 900+ travel sites with momondo.

Find the cheapest flights from Boston to Belfast

Cheap round-trip flights

Enter your travel dates to find the best prices.
Multiple Airlines Logo
6:00 pm - 6:35 pmBOS  Boston Logan Intl-BFS Belfast Intl
19h 35m3 stops Lisbon Humberto Delgado Dublin London Stansted
Multiple Airlines Logo
6:15 am - 8:15 pmBFS  Belfast Intl-BOS Boston Logan Intl
19h 00m2 stops London Stansted Lisbon Humberto Delgado
$742Multiple Airlines
Fri, Dec 4 - Fri, Dec 11
Multiple Airlines Logo
9:50 pm - 10:00 pmBOS  Boston Logan Intl-BFS Belfast Intl
19h 10m2 stops Zurich London Gatwick
Multiple Airlines Logo
6:55 pm - 3:05 pmBFS  Belfast Intl-BOS Boston Logan Intl
25h 10m2 stops London Stansted Lisbon Humberto Delgado
$748Multiple Airlines
Wed, Dec 2 - Wed, Dec 9
Multiple Airlines Logo
6:20 pm - 6:00 pmBOS  Boston Logan Intl-BFS Belfast Intl
18h 40m2 stops Paris Charles de Gaulle London Gatwick
Multiple Airlines Logo
6:55 pm - 8:15 pmBFS  Belfast Intl-BOS Boston Logan Intl
30h 20m2 stops London Stansted Lisbon Humberto Delgado
$749Multiple Airlines
Wed, Dec 2 - Wed, Dec 9
Multiple Airlines Logo
7:50 pm - 6:55 pmBOS  Boston Logan Intl-BFS Belfast Intl
18h 05m3 stops Reykjavik Keflavik Intl Dublin Bristol
Multiple Airlines Logo
7:50 pm - 8:30 pmBFS  Belfast Intl-BOS Boston Logan Intl
29h 40m2 stops Edinburgh Turnhouse Porto
$774Multiple Airlines
Sat, Dec 5 - Sat, Dec 12
Multiple Airlines Logo
9:50 pm - 10:00 pmBOS  Boston Logan Intl-BFS Belfast Intl
19h 10m2 stops Zurich London Gatwick
Multiple Airlines Logo
6:00 pm - 8:15 pmBFS  Belfast Intl-BOS Boston Logan Intl
31h 15m3 stops Malaga Bilbao Lisbon Humberto Delgado
$787Multiple Airlines
Wed, Dec 2 - Wed, Dec 9
Multiple Airlines Logo
7:50 pm - 6:55 pmBOS  Boston Logan Intl-BFS Belfast Intl
18h 05m3 stops Reykjavik Keflavik Intl Dublin Bristol
Multiple Airlines Logo
7:50 pm - 7:55 pmBFS  Belfast Intl-BOS Boston Logan Intl
29h 05m3 stops Edinburgh Turnhouse Porto Lisbon Humberto Delgado
$789Multiple Airlines
Sat, Dec 5 - Sat, Dec 12
Multiple Airlines Logo
6:00 pm - 2:45 pmBOS  Boston Logan Intl-BFS Belfast Intl
15h 45m2 stops Lisbon Humberto Delgado London Gatwick
Multiple Airlines Logo
11:00 pm - 8:30 pmBFS  Belfast Intl-BOS Boston Logan Intl
26h 30m2 stops Manchester Porto
$793Multiple Airlines
Sat, Dec 5 - Sat, Dec 12
Multiple Airlines Logo
6:00 pm - 6:35 pmBOS  Boston Logan Intl-BFS Belfast Intl
19h 35m3 stops Lisbon Humberto Delgado Dublin London Stansted
Multiple Airlines Logo
7:50 pm - 2:55 pmBFS  Belfast Intl-BOS Boston Logan Intl
24h 05m2 stops Manchester Lisbon Humberto Delgado
$802Multiple Airlines
Fri, Dec 4 - Fri, Dec 11
Multiple Airlines Logo
6:20 pm - 1:50 pmBOS  Boston Logan Intl-BFS Belfast Intl
14h 30m2 stops Paris Charles de Gaulle London Gatwick
Multiple Airlines Logo
7:15 pm - 8:15 pmBFS  Belfast Intl-BOS Boston Logan Intl
30h 00m3 stops Bristol Porto Lisbon Humberto Delgado
$804Multiple Airlines
Wed, Dec 2 - Wed, Dec 9
Multiple Airlines Logo
7:50 pm - 7:45 pmBOS  Boston Logan Intl-BFS Belfast Intl
18h 55m3 stops Reykjavik Keflavik Intl Dublin Manchester
Multiple Airlines Logo
11:00 pm - 8:00 pmBFS  Belfast Intl-BOS Boston Logan Intl
26h 00m3 stops Manchester Porto Ponta Delgada Nordela
$806Multiple Airlines
Wed, Jan 13 - Sat, Jan 16

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Use the filters below to find and compare flights from Boston to Belfast Intl Airport that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip
Quickest round-trip

BostonBelfast

BOS Boston Logan Intl - BFS Belfast Intl

BOSBFS

Boston Logan Intl

Fri 12/4

6:00 pm-6:35 pm

3 stops19h 35m

Belfast Intl

Fri 12/11

6:15 am-8:15 pm

2 stops19h 00m

$742

BostonBelfast

BOS Boston Logan Intl - BFS Belfast Intl

BOSBFS

Boston Logan Intl

Wed 12/2

9:50 pm-10:00 pm

2 stops19h 10m

Belfast Intl

Wed 12/9

6:55 pm-3:05 pm

2 stops25h 10m

$748

BostonBelfast

BOS Boston Logan Intl - BFS Belfast Intl

BOSBFS

Boston Logan Intl

Wed 12/2

6:20 pm-6:00 pm

2 stops18h 40m

Belfast Intl

Wed 12/9

6:55 pm-8:15 pm

2 stops30h 20m

$749

BostonBelfast

BOS Boston Logan Intl - BFS Belfast Intl

BOSBFS

Boston Logan Intl

Sat 12/5

7:50 pm-6:55 pm

3 stops18h 05m

Belfast Intl

Sat 12/12

7:50 pm-8:30 pm

2 stops29h 40m

$774

BostonBelfast

BOS Boston Logan Intl - BFS Belfast Intl

BOSBFS

Boston Logan Intl

Wed 12/2

9:50 pm-10:00 pm

2 stops19h 10m

Belfast Intl

Wed 12/9

6:00 pm-8:15 pm

3 stops31h 15m

$787

BostonBelfast

BOS Boston Logan Intl - BFS Belfast Intl

BOSBFS

Boston Logan Intl

Sat 12/5

7:50 pm-6:55 pm

3 stops18h 05m

Belfast Intl

Sat 12/12

7:50 pm-7:55 pm

3 stops29h 05m

$789

BostonBelfast

BOS Boston Logan Intl - BFS Belfast Intl

BOSBFS

Boston Logan Intl

Sat 12/5

6:00 pm-2:45 pm

2 stops15h 45m

Belfast Intl

Sat 12/12

11:00 pm-8:30 pm

2 stops26h 30m

$793

BostonBelfast

BOS Boston Logan Intl - BFS Belfast Intl

BOSBFS

Boston Logan Intl

Fri 12/4

6:00 pm-6:35 pm

3 stops19h 35m

Belfast Intl

Fri 12/11

7:50 pm-2:55 pm

2 stops24h 05m

$802

BostonBelfast

BOS Boston Logan Intl - BFS Belfast Intl

BOSBFS

Boston Logan Intl

Wed 12/2

6:20 pm-1:50 pm

2 stops14h 30m

Belfast Intl

Wed 12/9

7:15 pm-8:15 pm

3 stops30h 00m

$804

BostonBelfast

BOS Boston Logan Intl - BFS Belfast Intl

BOSBFS

Boston Logan Intl

Wed 1/13

7:50 pm-7:45 pm

3 stops18h 55m

Belfast Intl

Sat 1/16

11:00 pm-8:00 pm

3 stops26h 00m

$806

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 12 resultsSorted by cheapest first
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See travel insights to Belfast from

How to get the cheapest flight ticket from Boston 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 July is, on average, the cheapest month to fly to Belfast Intl Airport from Boston, with most prices found around $0. If you’re not able to fly to Belfast Intl Airport in July, then February is your next best option. Flight prices from Boston to Belfast Intl Airport during February average around $0.

When to book flights from Boston to Belfast Intl Airport

Are you open to changing your travel dates? Check out the ideal times to fly from Boston to Belfast Intl Airport according to our flight data. Find out which month and days have the cheapest flights.
Estimated round-trip price

Cheap Boston to Belfast Intl Airport (BOS to BFS) flight deals and tips

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

Best Price Found

$350

Fastest flight time

10h 45m

Direct flights

None
The best one-way flight to Belfast Intl Airport from Boston in the past 72 hours is $350. The best round-trip flight deal from Boston to Belfast Intl Airport found on momondo in the last 72 hours is $742.
The fastest flight from Boston to Belfast Intl Airport takes 10h 45m
There are no direct flights from Boston to Belfast Intl Airport. There are no popular flight routes from Boston to Belfast Intl Airport.
Search flight deals

Frequently asked questions about flying from Boston to Belfast Intl Airport

  • How far is Boston Logan Intl to Belfast Intl by plane?

    The distance between Boston Logan Intl and Belfast Intl is about 2969.1 mi. By plane, this route typically takes 10h 45m.

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

    Prices for flights from Boston Logan Intl Airport to Belfast Intl Airport refresh daily.

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

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

    The minimum age a child must be to fly alone is five but airlines that offer an unaccompanied minor (UNMR) service will have their own age restrictions, including rules around flight length, timings, and stopovers. We always recommend checking with the individual airline you are booking with to travel from Boston Logan Intl Airport to Belfast Intl Airport.

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

    The travel and health documents required for your trip to Belfast Intl Airport can vary based on your itinerary and personal situation. As a rule, consider having multiple documents such as a national ID card or driver’s license, and a passport valid for six-months after you plan to arrive at Belfast Intl Airport. We always recommend checking with your airline or a trusted third party such as IATA to get advice.

  • What is the most popular airline from Boston to Belfast Intl Airport?

Best airlines flying from Boston to Belfast Intl Airport

Compare and see reviews for airlines that fly from Boston to Belfast Intl Airport with momondo
Airline
Rating
Free Cancellation
Price
British AirwaysPriceFrom $596Free CancellationRating
6.7
8,282 reviews
Search British Airways flights

Traveling to a place near Belfast?

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

Why use momondo?

Why should I use momondo to find a flight deal from Boston 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 Boston.

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

momondo does allow users to show only those flights to Belfast from Boston which offer a flexible booking policy as well as other useful filters and features.

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

Once you have performed a search in the form on the page, momondo provides useful filters and insights. We can show you the cheapest days and times to fly as well as help filter your options to help you make an informed choice when booking flights to Belfast from Boston.

I’m not ready to book a flight from Boston to Belfast right now. Can momondo alert me if prices change?

Yes momondo offers price alerts on flights to Belfast from Boston. After performing a search on this page you should be able to see the price alert set up feature. Simply provide a valid email address and momondo will instantly alert you when prices change.

An easier way to manage your Belfast Intl Airport trip

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