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$387 Find cheap flights from Belfast to Boston

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight from Belfast to Boston departing on 8/5. 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
Sat 6/29
Sat 7/6

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

 
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Belfast to Boston, 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 Belfast to Boston, as well as popular online travel agencies
In the last 7 days travelers have searched 42,686,544 times on KAYAK, and here is why:

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Cheap flight deals from Belfast to Boston

Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from Belfast to Boston 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 and deals for you by selecting your travel dates.
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1:50 pm - 11:55 amBHD-BOS
27h 05m1 stop
1:10 pm - 12:50 pmBOS-BHD
18h 40m2 stops
$654American Airlines
Find Deal
Mon, Jun 24 - Mon, Jul 1
3:25 pm - 11:55 amBHD-BOS
25h 30m1 stop
6:31 am - 8:55 amBOS-BHD
21h 24m2 stops
$655American Airlines
Find Deal
Mon, Jun 24 - Mon, Jul 1
6:35 am - 11:55 amBHD-BOS
10h 20m1 stop
8:20 pm - 12:50 pmBOS-BHD
11h 30m1 stop
$656British Airways
Find Deal
Mon, Jun 24 - Mon, Jul 1
12:20 pm - 11:51 pmBHD-BOS
16h 31m2 stops
4:10 pm - 3:35 pmBOS-BHD
18h 25m2 stops
$660American Airlines
Find Deal
Mon, Jun 24 - Mon, Jul 1
12:20 pm - 10:16 amBHD-BOS
26h 56m2 stops
1:10 pm - 12:50 pmBOS-BHD
18h 40m2 stops
$661American Airlines
Find Deal
Mon, Jun 24 - Mon, Jul 1
12:20 pm - 11:51 pmBHD-BOS
16h 31m2 stops
5:47 pm - 5:25 pmBOS-BHD
18h 38m2 stops
$662American Airlines
Find Deal
Mon, Jun 24 - Mon, Jul 1
5:20 pm - 1:40 pmBHD-BOS
25h 20m1 stop
4:45 pm - 4:50 pmBOS-BHD
19h 05m1 stop
$767Delta
Find Deal
Mon, Jun 24 - Mon, Jul 1
5:20 pm - 6:40 pmBHD-BOS
30h 20m2 stops
7:00 pm - 4:50 pmBOS-BHD
16h 50m1 stop
$773Delta
Find Deal
Mon, Jun 24 - Mon, Jul 1
6:35 am - 4:55 pmBHD-BOS
15h 20m1 stop
4:40 pm - 3:20 pmBOS-BHD
17h 40m2 stops
$875Iberia
Find Deal
Fri, Jun 14 - Tue, Jun 18
6:35 am - 12:22 amBHD-BOS
22h 47m2 stops
4:40 pm - 3:20 pmBOS-BHD
17h 40m2 stops
$881Iberia
Find Deal
Fri, Jun 14 - Tue, Jun 18

Flights from Belfast to Boston - Travel Insights & Trends

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

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

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for flights from Belfast to Boston, 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 Belfast to Boston is April, where tickets cost $568 on average. On the other hand, the most expensive months are August and May, where the average cost of tickets is $940 and $785 respectively.

Which airlines provide the cheapest flights from Belfast to Boston?

The cheapest price for the route for each airline clicked by KAYAK users in the last 72 hours.
The best deals for a one-way ticket found by KAYAK users over the last 3 days were on Aer Lingus ($1,047) and American Airlines ($1,861). The cheapest round-trip tickets were found on American Airlines ($654) and British Airways ($656).

Good to know

Cheapest flight

$387
Flight from Belfast Intl Airport to Boston

When to book flights from Belfast to Boston

Are your dates flexible? Find out the best times to travel from Belfast to Boston based on our flight data from the last year. Discover the cheapest month and even day to fly.
Estimated round-trip price
KAYAK looks at all historical flight data for each date to provide a predicted price for one-way trips or round-trips 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 Belfast to Boston

  • What is the cheapest flight from Belfast to Boston?

    In the last 3 days, the lowest price for a flight from Belfast to Boston was $387 for a one-way ticket and $654 for a round-trip.

  • Do I need a passport to fly between Belfast and Boston?

    A passport is required to fly from Belfast to Boston.

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

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

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

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

  • Which airline alliances offer flights from Belfast to Boston?

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

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

    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 Belfast to Boston.

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

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Boston from Belfast 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 Belfast to Boston?

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

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

    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 Boston from Belfast 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 Belfast to Boston

Recent one-way flight deals

 
Only flying one-way? Below are some of the best one-way flight deals from Belfast to Boston found on KAYAK in the last 72 hours.
8/5Mon
3 stops
41h 32mBFS-BOS
$387
8/4Sun
2 stops
25h 00mBFS-BOS
$480
8/3Sat
2 stops
26h 35mBFS-BOS
$485
8/4Sun
3 stops
15h 55mBFS-BOS
$522
8/5Mon
2 stops
26h 10mBFS-BOS
$532
8/3Sat
3 stops
15h 55mBFS-BOS
$603
8/5Mon
2 stops
14h 25mBHD-BOS
$671
8/4Sun
2 stopsAer Lingus
27h 35mBHD-BOS
$1,047
8/5Mon
1 stopAmerican Airlines
15h 20mBHD-BOS
$1,861
8/3Sat
1 stopAmerican Airlines
11h 25mBHD-BOS
$1,915

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Flights to Boston

Destination:

Boston (BOS)United States

Return flight deals:

Boston - Belfast

Cabin classes: