£228 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 6/3. 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
1 adult, Economy, 0 bags

KAYAK searches 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
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Everything you should know

Cheapest return fare
£407
British Airways
Mon 23/2Mon 2/3
BOS - BHD • 2 stops
Cheapest one-way flight
£228
Delta
Fri 6/3
BOS - BHD • 1 stop
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Flight Deals
Booking Insights
Flight Deals

Cheap Flights 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.
Discover the best prices for you by selecting your travel dates on KAYAK.

Recent return flight deals from Boston to Belfast

Mon, 23 Feb - Mon, 2 Mar
British Airways Logo
15:47 - 09:05
BOS
-
BHD
12h 18m2 stops
British Airways Logo
19:25 - 14:20
BHD
-
BOS
23h 55m1 stop
£407British Airways
Mon, 23 Feb - Mon, 2 Mar
British Airways Logo
18:55 - 10:40
BOS
-
BHD
10h 45m1 stop
British Airways Logo
19:25 - 14:20
BHD
-
BOS
23h 55m1 stop
£410British Airways
Mon, 23 Feb - Mon, 2 Mar
British Airways Logo
15:47 - 09:05
BOS
-
BHD
12h 18m2 stops
British Airways Logo
19:25 - 15:49
BHD
-
BOS
25h 24m2 stops
£429British Airways
Thu, 29 Jan - Mon, 2 Feb
British Airways Logo
18:55 - 10:20
BOS
-
BHD
10h 25m1 stop
British Airways Logo
17:45 - 19:45
BHD
-
BOS
31h 00m1 stop
£448British Airways
Fri, 13 Mar - Sat, 21 Mar
British Airways Logo
21:59 - 14:15
BOS
-
BHD
12h 16m2 stops
British Airways Logo
11:35 - 23:19
BHD
-
BOS
15h 44m2 stops
£484British Airways
Fri, 13 Mar - Sat, 21 Mar
British Airways Logo
08:30 - 08:25
BOS
-
BHD
19h 55m1 stop
British Airways Logo
11:35 - 23:19
BHD
-
BOS
15h 44m2 stops
£487British Airways
Sun, 25 Jan - Sun, 1 Feb
Multiple Airlines Logo
19:50 - 18:55
BOS
-
BFS
18h 05m2 stops
Multiple Airlines Logo
05:45 - 20:10
BFS
-
BOS
19h 25m3 stops
£503Multiple Airlines
Thu, 1 Jan - Thu, 8 Jan
British Airways Logo
07:30 - 07:30
BOS
-
BHD
19h 00m1 stop
British Airways Logo
15:05 - 21:55
BHD
-
BOS
11h 50m1 stop
£521British Airways
Sun, 25 Jan - Sun, 1 Feb
Multiple Airlines Logo
05:30 - 20:45
BOS
-
BFS
34h 15m3 stops
Multiple Airlines Logo
05:45 - 14:35
BFS
-
BOS
37h 50m3 stops
£525Multiple Airlines
Thu, 1 Jan - Thu, 8 Jan
American Airlines Logo
21:35 - 16:40
BOS
-
BHD
14h 05m1 stop
American Airlines Logo
11:05 - 22:56
BHD
-
BOS
16h 51m2 stops
£568American Airlines
Booking Insights

KAYAK's insights & trends for Boston to Belfast flights

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.

What is the cheapest month to fly from Boston to Belfast?

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for round-trip flights from Boston to Belfast, removes the top 0.1% to account for outliers, and then takes the median of all values for each month.

The cheapest month for flights from Boston to Belfast is September, where tickets cost £459 (return) on average. On the other hand, the most expensive months are November and December, where the average cost of round-trip tickets is £1,112 and £913 respectively.

Find deals

Good to know - Cheap tickets from Boston to Belfast

Cheapest flight£228
Flight from Boston to Belfast City 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 £228 for a one-way ticket and £407 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.

  • 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.

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

Information on your arrival and departure airports

Boston (BOS)