£143 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 24/2. 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
£491
British Airways
Sat 28/2Wed 4/3
BOS - BHD • 1 stop
Cheapest one-way flight
£178
Multiple Airlines
Tue 24/2
BOS - BHD • 2 stops
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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

Sat, 28 Feb - Wed, 4 Mar
British Airways Logo
18:55 - 11:10
BOS
-
BHD
11h 15m
1 stop
British Airways Logo
12:25 - 19:45
BHD
-
BOS
12h 20m
1 stop
£491British Airways
Sat, 28 Feb - Wed, 4 Mar
British Airways Logo
17:53 - 11:10
BOS
-
BHD
12h 17m
2 stops
British Airways Logo
06:35 - 14:20
BHD
-
BOS
12h 45m
1 stop
£492British Airways
Sat, 28 Feb - Wed, 4 Mar
British Airways Logo
17:53 - 11:10
BOS
-
BHD
12h 17m
2 stops
British Airways Logo
06:35 - 15:17
BHD
-
BOS
13h 42m
2 stops
£494British Airways
Sun, 1 Mar - Thu, 5 Mar
British Airways Logo
07:30 - 08:25
BOS
-
BHD
19h 55m
1 stop
British Airways Logo
11:05 - 19:45
BHD
-
BOS
13h 40m
1 stop
£497British Airways
Sun, 1 Mar - Thu, 5 Mar
British Airways Logo
18:55 - 10:20
BOS
-
BHD
10h 25m
1 stop
British Airways Logo
06:35 - 19:45
BHD
-
BOS
18h 10m
1 stop
£499British Airways
Sun, 3 May - Thu, 7 May
British Airways Logo
19:30 - 10:30
BOS
-
BHD
10h 00m
1 stop
British Airways Logo
14:20 - 20:05
BHD
-
BOS
10h 45m
1 stop
£502British Airways
Sun, 3 May - Thu, 7 May
British Airways Logo
19:30 - 10:30
BOS
-
BHD
10h 00m
1 stop
British Airways Logo
19:30 - 17:00
BHD
-
BOS
26h 30m
1 stop
£505British Airways
Sun, 31 May - Sat, 13 Jun
British Airways Logo
21:55 - 14:35
BOS
-
BHD
11h 40m
1 stop
British Airways Logo
19:05 - 19:50
BHD
-
BOS
29h 45m
2 stops
£541British Airways
Sat, 21 Mar - Mon, 23 Mar
Multiple Airlines Logo
12:35 - 14:40
BOS
-
BFS
22h 05m
3 stops
Multiple Airlines Logo
06:00 - 20:55
BFS
-
BOS
42h 55m
3 stops
£580Multiple Airlines
Sat, 21 Mar - Mon, 23 Mar
Multiple Airlines Logo
23:25 - 22:40
BOS
-
BFS
19h 15m
2 stops
Multiple Airlines Logo
06:00 - 20:55
BFS
-
BOS
42h 55m
3 stops
£606Multiple 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 £447 (return) on average. On the other hand, the most expensive months are November and December, where the average cost of round-trip tickets is £1,083 and £889 respectively.

Find deals

Good to know - Cheap tickets from Boston to Belfast

Cheapest flight£178
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 £143 for a one-way ticket and £491 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)