BFS - BOS

$292 Find Cheap Flights from Belfast Intl Airport 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 Intl to Boston departing on 8/28. 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

KAYAK searches 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
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Flights Deals

Cheap Flights from Belfast Intl to Boston (BFS-BOS)

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from Belfast Intl 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 for you by selecting your travel dates on KAYAK.

Recent round-trip flight deals from Belfast Intl to Boston

Tue, Aug 26 - Tue, Sep 2
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9:00 am - 3:35 pmBFS-BOS
35h 35m2 stops
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5:40 pm - 3:00 pmBOS-BFS
16h 20m2 stops
Tue, Aug 26 - Tue, Sep 2
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9:00 am - 3:35 pmBFS-BOS
35h 35m2 stops
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5:40 pm - 3:00 pmBOS-BFS
16h 20m3 stops
Mon, Jun 23 - Mon, Jun 30
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8:20 am - 1:20 pmBFS-BOS
10h 00m1 stop
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5:05 pm - 9:55 pmBOS-BFS
23h 50m2 stops
Mon, Jun 23 - Mon, Jun 30
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8:20 am - 1:20 pmBFS-BOS
10h 00m1 stop
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5:05 pm - 9:55 pmBOS-BFS
23h 50m2 stops
Mon, Jun 23 - Mon, Jun 30
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8:20 am - 1:20 pmBFS-BOS
10h 00m1 stop
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7:15 pm - 9:55 pmBOS-BFS
21h 40m1 stop
Mon, Jun 23 - Mon, Jun 30
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8:20 am - 1:20 pmBFS-BOS
10h 00m1 stop
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7:15 pm - 9:55 pmBOS-BFS
21h 40m1 stop
Mon, Jun 23 - Mon, Jun 30
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10:45 pm - 6:20 pmBFS-BOS
24h 35m2 stops
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8:15 pm - 1:10 pmBOS-BFS
11h 55m2 stops
Mon, Jun 23 - Mon, Jun 30
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8:10 am - 6:20 pmBFS-BOS
15h 10m2 stops
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8:15 pm - 1:10 pmBOS-BFS
11h 55m2 stops
Tue, Jul 22 - Tue, Jul 29
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5:55 am - 6:10 pmBFS-BOS
41h 15m3 stops
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8:50 pm - 3:00 pmBOS-BFS
13h 10m2 stops
Tue, Jul 22 - Tue, Jul 29
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10:55 pm - 10:00 pmBFS-BOS
28h 05m2 stops
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8:50 pm - 3:00 pmBOS-BFS
13h 10m2 stops
Useful Info

Good to know

Low seasonFebruary
High seasonSeptember
Cheapest flight$292
Best time to beat the crowds with an average 34% drop in price.
Most popular time to fly and prices are also 16% lower on average.
Flight from Belfast Intl Airport to Boston

When to book flights from Belfast Intl to Boston

Are your dates flexible? Find out the best times to travel from Belfast Intl 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 Belfast Intl Airport to Boston flights

  • What is the cheapest flight from Belfast Intl Airport to Boston?

    In the last 3 days, the lowest price for a flight from Belfast Intl Airport to Boston was $292 for a one-way ticket and $615 for a round-trip.

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

    A passport is required to fly from Belfast Intl Airport to Boston.

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

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

  • How does KAYAK find such low prices on flights from Belfast Intl Airport 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 Intl Airport to Boston.

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

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Boston from Belfast Intl Airport 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 Intl Airport 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 Intl Airport with another airline. Booking your flights between Belfast Intl Airport and BOS can sometimes prove cheaper using this method.

  • What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from Belfast Intl Airport 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 Intl Airport up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

Top airline flying from Belfast Intl to Boston

 
See real verified KAYAK customer reviews for airlines flying from Belfast to Boston. Airline scores are aggregated from all reviews left by passengers on KAYAK after flying with an airline. KAYAK doesn’t show reviews that are older than 5 years. Learn how KAYAK collects reviews.
Need help choosing which airline to fly with from Belfast Intl to Boston? KAYAK airline reviews give an overall score for each airline based on loads of factors, including comfort, boarding, in-flight entertainment and more, to make your decision easier. See airline scores according to verified KAYAK customer reviews.
6.6
British AirwaysOverall score based on 7008 reviews
6.3Food
6.8Boarding
6.4Entertainment
6.7Comfort
7.6Crew
Airline reviews

Better synchronizing the boarding processes. The audio announcements, the personnel and the digital signage were not saying the same thing. All confusion.

6.0 GoodPhilip, Jun 2025LHR - BWI
Read more British Airways reviews

Better synchronizing the boarding processes. The audio announcements, the personnel and the digital signage were not saying the same thing. All confusion.

The first class seats were unusable, mine at the end of the flight, my husband's in the middle of the flight, and the one next to me was unusable either, they had to move the person to another seat.

Last minute gate change. Didn’t put our TSA global on our trip even though we asked multiple times to confirm. Did not help with food when could not eat what was served.

The cabin was bit colder than I like but the crew members looked after us very well. They did even offer hot water bottle and hot chocolate. I cannot rate the crew enough excellent is not good enough. They really were wonderful.

Boarding is always a challenge as folks in al groups crowd around for no reason, but crew handled it well. I once again applaud the LHR ground baggage staff as they got our bags from a flight at Terminal 5A to a flight in Terminal 5C within 40 minutes...amazing!

This flight from London to Chicago was actually on an AA airline. I did book through BA but the flight was AA. Great flight, hectic in Chicago, I wouldn't choose to fly through Chicago again, but that's not the airlines fault. The flight itself was great.

Push back is not working when I complaint a male staff he told me that most of the seats are like that so we can’t do anything

Seats were way too small. I got claustrophobic waiting for trash from meal to be taken away. I couldn't move to even close my tray until trash was taken.

Boarding was fairly chaotic. One of your employees clipped my ankle as he was passing with an empty wheelchair and not only did not apologize but stated something to the effect of “oh forGod’s sake.” There was plenty of room for him to pass. otherwise, everything was excellent.

Fantastic! Great seats! Friendly staff! Amazing selection of shows and movies! Smooth ride! I don’t know what more I could have asked for honestly. They made flying a breeze this time around.

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

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