£282 Find Cheap Flights from Boston to Belfast

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight from Boston to Belfast departing on 8/6. Fares are subject to change and may not be available on all flights or dates of travel. Click the price to replicate the search for this deal.
1 adult
0 bags

Search hundreds of travel sites at once for deals on flights to Belfast

 
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Boston to Belfast, as well as popular online travel agencies
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Boston to Belfast, as well as popular online travel agencies
In the last 7 days, travellers have searched 41,299,237 times on KAYAK, and here's why:

Save 30% or moreCompare multiple travel sites with one search.

Track pricesNot ready to book? Create a price alert for when prices drop.

Filter your dealsChoose cabin class, free Wi-Fi and more.

Bundle and saveSave money when you bundle your flight + hotel.

Cheap Flight Deals from Boston to Belfast (BOS-BHD)

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for return flights from Boston to Belfast that are departing in the next months. While these flights were available on KAYAK in the last 72 hours, prices and availability are subject to change and deals may expire.

Recent return flight deals from Boston to Belfast

Recommended round-trip deals departing in the coming months from the most popular airlines that fly from Boston to Belfast.
Discover the best prices and deals for you by selecting your travel dates.
Choose your dates
19:36 - 13:35BOS-BHD
12h 59m2 stops
06:35 - 19:06BHD-BOS
17h 31m2 stops
£498British Airways
Find Deal
Tue, 14 Jan - Tue, 21 Jan
19:36 - 13:35BOS-BHD
12h 59m2 stops
06:35 - 13:25BHD-BOS
11h 50m1 stop
£499British Airways
Find Deal
Tue, 14 Jan - Tue, 21 Jan
22:00 - 13:55BOS-BHD
10h 55m1 stop
14:50 - 21:55BHD-BOS
12h 05m1 stop
£500British Airways
Find Deal
Sun, 2 Mar - Fri, 7 Mar
20:00 - 17:55BOS-BFS
16h 55m2 stops
05:45 - 20:05BFS-BOS
43h 20m3 stops
Tue, 14 Jan - Tue, 21 Jan
22:00 - 16:45BOS-BHD
13h 45m1 stop
06:35 - 14:00BHD-BOS
12h 25m1 stop
£507Finnair
Find Deal
Tue, 14 Jan - Tue, 21 Jan
22:00 - 16:45BOS-BHD
13h 45m1 stop
06:35 - 14:00BHD-BOS
12h 25m1 stop
£510Finnair
Find Deal
Tue, 14 Jan - Tue, 21 Jan
19:15 - 23:25BOS-BFS
23h 10m2 stops
06:35 - 18:00BFS-BOS
16h 25m2 stops
Thu, 1 May - Thu, 15 May
20:20 - 14:55BOS-BHD
13h 35m1 stop
06:35 - 13:25BHD-BOS
11h 50m1 stop
£518American Airlines
Find Deal
Tue, 14 Jan - Tue, 21 Jan
20:05 - 11:10BOS-BHD
10h 05m1 stop
15:40 - 22:55BHD-BOS
11h 15m1 stop
£519American Airlines
Find Deal
Sat, 8 Mar - Wed, 12 Mar
19:09 - 16:50BOS-BHD
16h 41m1 stop
06:30 - 13:35BHD-BOS
12h 05m1 stop
£546KLM
Find Deal
Tue, 14 Jan - Tue, 21 Jan

Flights from Boston to Belfast - Travel Insights & Trends

Get data-powered insights and trends into flights from Boston to Belfast to help you find the cheapest flights, the best time to fly and much more.

Which airlines provide the cheapest flights from Boston to Belfast?

The cheapest round-trip price for the route for each airline clicked by KAYAK users in the last 72 hours.
In the past 3 days, the cheapest return tickets from Boston to Belfast were found on British Airways (£498) and Finnair (£507).

Good to know - Cheap tickets from Boston to Belfast

Cheapest flight

£282
Flight from Boston to Belfast Intl Airport

When to book flights from Boston to Belfast

Are your dates flexible? Find out the best times to travel from Boston to Belfast based on our flight data from the last year. Discover the cheapest month and even day to fly.
Estimated return price
KAYAK looks at all historical flight data for each date to provide a predicted price for one-way trips or returns with a duration up to 40 days. While we try to provide actual minimum prices for each date, some prices are predictions and actual prices may differ.

FAQs for booking flights from Boston to Belfast

  • What is the cheapest flight from Boston to Belfast?

    In the last 3 days, the lowest price for a flight from Boston to Belfast was £353 for a one-way ticket and £624 for a return.

  • Which airports will I be using when flying from Boston to Belfast?

    On your way to Belfast, you’ll fly out from Boston Logan Intl. You’ll be landing in one of Belfast’s 2 airports: Belfast Intl or Belfast City.

  • Which aircraft models fly most regularly from Boston to Belfast?

    We unfortunately don’t have that data for this specific route.

  • Which airline alliances offer flights from Boston to Belfast?

    oneworld, and SkyTeam are the airline alliances operating flights between Boston and Belfast, with oneworld being the most commonly used for this route.

  • How does KAYAK find such low prices on flights from Boston to Belfast?

    KAYAK is a travel search engine. That means we look across the web to find the best prices we can find for our users. With over 2 billion flight queries processed yearly, we are able to display a variety of prices and options on flights from Boston to Belfast.

  • How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from Boston to Belfast?

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Belfast from Boston is likely to change within 7 days, so travelers know whether to wait or book now.

  • What is the Hacker Fare option on flights from Boston to Belfast?

    Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional return ticket. You could then fly to Belfast with an airline and back to Boston with another airline.

  • What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from Boston to Belfast?

    Sometimes travel dates aren't set in stone. If your preferred travel dates have some wiggle room, flexible dates will show you all the options when flying to Belfast from Boston up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

See more FAQs

Book cheap flights from Boston to Belfast

Cheapest flights to Belfast from Boston found in 2024 and 2025

Recent one-way flight deals

 
Only flying one-way? Below are some of the best one-way flight deals from Boston to Belfast found on KAYAK in the last 72 hours.
8/6Sun
2 stops
22h 15mBOS-BFS
£282
10/6Tue
2 stops
19h 00mBOS-BFS
£290
5/5Mon
1 stopBritish Airways
10h 05mBOS-BHD
£297
5/5Mon
2 stopsBritish Airways
16h 07mBOS-BHD
£298
7/6Sat
2 stops
22h 45mBOS-BFS
£302
9/6Mon
2 stops
18h 30mBOS-BFS
£307
6/6Fri
2 stops
15h 40mBOS-BFS
£310
15/6Sun
2 stops
19h 00mBOS-BFS
£319
7/6Sat
1 stopFinnair
9h 30mBOS-BHD
£494
6/6Fri
1 stopIberia
17h 50mBOS-BHD
£500

Search by stops

Search by airline

Search by price

Last minute flights from Boston to Belfast

Last minute flight, train and bus deals

 
These last-minute flight deals are the cheapest flights found on KAYAK in the last 72 hours for flights from Boston to Belfast that are departing in the next 10 days.
23/12Mon
multi-stopBritish Airways
16h 39mBOS-BHD
30/12Mon
multi-stopBritish Airways
33h 13mBHD-BOS
£1,427
23/12Mon
multi-stop
11h 10mBOS-BHD
30/12Mon
multi-stop
17h 45mBHD-BOS
£1,490
23/12Mon
multi-stop
11h 10mBOS-BHD
30/12Mon
multi-stop
38h 43mBHD-BOS
£1,505

Search by stops

Search by airline

Search by price

Everything you need to know for your flight from Boston to Belfast

Information on your arrival and departure airports

Not what you’re looking for? Find thousands of other hotels, flights, car hires and package deals with KAYAK.