Latest deals
Insights
When to book
FAQs
Price Alerts

Cheap flights from Boston to Belfast from $365

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Boston to Belfast departing on 7/3. 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

Save money when you book flights with momondo

Big names and deals

Big names and deals

Search 100s of travel sites to compare prices.

Filter for what you want

Filter for what you want

Free Wi-Fi? Stopover? Instantly customize your results.

Trusted and free

Trusted and free

We’re completely free to use - no hidden charges or fees.

Price Alerts

Price Alerts

Not ready to book? to track prices.
Search flight deals

Find the cheapest flights from Boston to Belfast

Cheap round-trip flights

Enter your travel dates to find the best prices.
British Airways Logo
10:35 pm - 1:55 pm
BOS
-
BHD
11h 20m
1 stop
British Airways Logo
3:40 pm - 9:55 pm
BHD
-
BOS
11h 15m
1 stop
$888British Airways
Sun, Oct 25 - Wed, Nov 4
British Airways Logo
7:30 pm - 10:30 am
BOS
-
BHD
10h 00m
1 stop
British Airways Logo
6:30 am - 8:10 pm
BHD
-
BOS
18h 40m
1 stop
$897British Airways
Sun, Aug 16 - Sun, Aug 30
British Airways Logo
9:50 pm - 3:30 pm
BOS
-
BHD
12h 40m
1 stop
British Airways Logo
6:30 am - 5:00 pm
BHD
-
BOS
15h 30m
1 stop
$901British Airways
Thu, Oct 1 - Mon, Oct 5
British Airways Logo
9:50 pm - 3:20 pm
BOS
-
BHD
12h 30m
1 stop
British Airways Logo
4:25 pm - 10:35 pm
BHD
-
BOS
11h 10m
1 stop
$908British Airways
Tue, Sep 8 - Tue, Sep 15
British Airways Logo
7:25 am - 8:50 am
BOS
-
BHD
20h 25m
1 stop
British Airways Logo
11:35 am - 10:35 pm
BHD
-
BOS
16h 00m
1 stop
$912British Airways
Mon, Sep 28 - Wed, Sep 30
British Airways Logo
8:30 am - 7:40 am
BOS
-
BHD
19h 10m
1 stop
British Airways Logo
8:45 am - 7:45 pm
BHD
-
BOS
16h 00m
1 stop
$913British Airways
Mon, Oct 26 - Fri, Nov 6
Multiple Airlines Logo
7:35 pm - 10:45 am
BOS
-
BHD
10h 10m
1 stop
Multiple Airlines Logo
5:20 pm - 8:20 pm
BHD
-
BOS
32h 00m
3 stops
$914Multiple Airlines
Tue, Sep 8 - Tue, Sep 15
British Airways Logo
9:50 pm - 3:30 pm
BOS
-
BHD
12h 40m
1 stop
British Airways Logo
12:25 pm - 9:55 pm
BHD
-
BOS
14h 30m
1 stop
$917British Airways
Thu, Oct 22 - Wed, Nov 4
British Airways Logo
7:35 pm - 10:10 am
BOS
-
BHD
9h 35m
1 stop
British Airways Logo
2:40 pm - 9:55 pm
BHD
-
BOS
12h 15m
1 stop
$921British Airways
Thu, Oct 22 - Mon, Nov 2
British Airways Logo
3:13 pm - 10:45 am
BOS
-
BHD
14h 32m
2 stops
British Airways Logo
9:40 am - 6:49 pm
BHD
-
BOS
14h 09m
2 stops
$922British Airways
Tue, Sep 8 - Tue, Sep 15

British Airways flights from Boston to Belfast City Airport

Our best British Airways deals on Boston to Belfast City Airport flight tickets
British Airways
Oct 25
BOS10:35 pmBoston Logan Intl
11h 20m
1 stop
BHD1:55 pmBelfast City
Nov 4
BHD3:40 pmBelfast City
11h 15m
1 stop
BOS9:55 pmBoston Logan Intl
$888
British Airways
Aug 16
BOS7:30 pmBoston Logan Intl
10h 00m
1 stop
BHD10:30 amBelfast City
Aug 30
BHD6:30 amBelfast City
18h 40m
1 stop
BOS8:10 pmBoston Logan Intl
$897
British Airways
Oct 1
BOS9:50 pmBoston Logan Intl
12h 40m
1 stop
BHD3:30 pmBelfast City
Oct 5
BHD6:30 amBelfast City
15h 30m
1 stop
BOS5:00 pmBoston Logan Intl
$901

KLM flights from Boston to Belfast City Airport

Our best KLM deals on Boston to Belfast City Airport flight tickets
KLM
Jul 4
BOS5:05 pmBoston Logan Intl
35h 15m
2 stops
BHD9:20 amBelfast City
Jul 9
BHD5:30 pmBelfast City
24h 48m
1 stop
BOS1:18 pmBoston Logan Intl
$1,095
KLM
May 27
BOS8:25 pmBoston Logan Intl
15h 30m
1 stop
BHD4:55 pmBelfast City
Jun 1
BHD9:50 amBelfast City
32h 15m
1 stop
BOS1:05 pmBoston Logan Intl
$1,137
KLM
May 24
BOS1:29 pmBoston Logan Intl
14h 51m
2 stops
BHD9:20 amBelfast City
Jun 2
BHD9:50 amBelfast City
11h 45m
1 stop
BOS4:35 pmBoston Logan Intl
$1,141

momondo Fare Finder

 
Customize your flight search to find flights from Boston to Belfast City 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 13, 2026.
Use the filters below to find and compare flights from Boston to Belfast City Airport that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

BostonBelfast

BOS - BHD

BOSBHD

Boston Logan Intl

Sun 10/25

10:35 pm-1:55 pm

1 stop11h 20m

Belfast City

Wed 11/4

3:40 pm-9:55 pm

1 stop11h 15m

$888

BostonBelfast

BOS - BHD

BOSBHD

Boston Logan Intl

Sun 8/16

7:30 pm-10:30 am

1 stop10h 00m

Belfast City

Sun 8/30

6:30 am-8:10 pm

1 stop18h 40m

$897

BostonBelfast

BOS - BHD

BOSBHD

Boston Logan Intl

Thu 10/1

9:50 pm-3:30 pm

1 stop12h 40m

Belfast City

Mon 10/5

6:30 am-5:00 pm

1 stop15h 30m

$901

BostonBelfast

BOS - BHD

BOSBHD

Boston Logan Intl

Tue 9/8

9:50 pm-3:20 pm

1 stop12h 30m

Belfast City

Tue 9/15

4:25 pm-10:35 pm

1 stop11h 10m

$908

BostonBelfast

BOS - BHD

BOSBHD

Boston Logan Intl

Mon 9/28

7:25 am-8:50 am

1 stop20h 25m

Belfast City

Wed 9/30

11:35 am-10:35 pm

1 stop16h 00m

$912

BostonBelfast

BOS - BHD

BOSBHD

Boston Logan Intl

Mon 10/26

8:30 am-7:40 am

1 stop19h 10m

Belfast City

Fri 11/6

8:45 am-7:45 pm

1 stop16h 00m

$913

BostonBelfast

BOS - BHD

BOSBHD

Boston Logan Intl

Tue 9/8

7:35 pm-10:45 am

1 stop10h 10m

Belfast City

Tue 9/15

5:20 pm-8:20 pm

3 stops32h 00m

$914

BostonBelfast

BOS - BHD

BOSBHD

Boston Logan Intl

Thu 10/22

9:50 pm-3:30 pm

1 stop12h 40m

Belfast City

Wed 11/4

12:25 pm-9:55 pm

1 stop14h 30m

$917
Quickest round-trip

BostonBelfast

BOS - BHD

BOSBHD

Boston Logan Intl

Thu 10/22

7:35 pm-10:10 am

1 stop9h 35m

Belfast City

Mon 11/2

2:40 pm-9:55 pm

1 stop12h 15m

$921

BostonBelfast

BOS - BHD

BOSBHD

Boston Logan Intl

Tue 9/8

3:13 pm-10:45 am

2 stops14h 32m

Belfast City

Tue 9/15

9:40 am-6:49 pm

2 stops14h 09m

$922

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
1
2

See travel insights to Belfast from

How to get the cheapest flight ticket from Boston to Belfast City 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 airline that flies from Boston Logan Intl to Belfast City?

British Airways is the most popular carrier operating from Boston Logan Intl to Belfast City

When to book flights from Boston to Belfast City Airport

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

Cheap Boston to Belfast City Airport (BOS to BHD) flight deals and tips

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

Fastest flight time

10h 45m

Direct flights

None
The fastest flight from Boston to Belfast City Airport takes 10h 45m
There are no direct flights from Boston to Belfast City Airport. There are no popular flight routes from Boston to Belfast City Airport.
Search flight deals

Frequently asked questions about flying from Boston to Belfast City Airport

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

    The straight-line distance from Boston Logan Intl to Belfast City is 2983.1 mi. 10h 45m is a normal flight duration for this route.

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

    Prices for flights from Boston Logan Intl Airport to Belfast City Airport are refreshed on a daily basis.

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

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

    The travel and health documents required for your trip to Belfast City 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 City Airport. We always recommend checking with your airline or a trusted third party such as IATA to get advice.

Traveling to a place near Belfast?

Book flights to Belfast if you plan to visit one of these locations
Newcastle
Bangor

Why use momondo?

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

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

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

Yes. momondo allows you to filter the results for Boston to Belfast flights to just show those with flexible booking policies.

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

momondo offers useful filters to help you find the right flight. Choose specific flight times, airports or even what payment method you prefer. We have numerous options to help you book your ideal flight from Boston to Belfast.

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

Price alerts on flights to Belfast from Boston are quick and easy to set up on momondo. Simply perform a search and select the price alert feature. It is as simple as that.

An easier way to manage your Belfast City Airport trip

We make it super easy to schedule, organize and travel with friends or family. Trips is free — and available to use no matter where you book.
Start using Trips
Find my bookings

Get notified when prices go down

Daily price changes in your inbox - only with Price Alerts.
1 adult
Fri 6/12
Fri 6/19
By creating a price alert you accept our terms of use and privacy policy.

Find better results for your trip to Belfast