BOS

£301 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 15/10. 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 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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Everything you should know

Cheapest return fare
£614
Typical prices: £648-£477
Multiple Airlines
Mon 11/5Mon 18/5
BFS - BOS • 2 stops
Cheapest one-way flight
£272
Multiple Airlines
Thu 15/10
BFS - BOS • 1 stop
Top airlines
American Airlines
Cheapest • from £636 (return)
British Airways
Best reviews • 6.7 score
Airline reviews
Airline reviews
+1
+1
Airline reviews
Airline reviews
+1
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We hope you love your trip to Boston!
Flight Deals
Booking Insights
Flight Deals

Cheap Flights from Belfast to Boston

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for return 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 for you by selecting your travel dates on KAYAK.

Recent return flight deals from Belfast to Boston

Mon, 11 May - Mon, 18 May
Multiple Airlines Logo
06:10 - 21:45
BFS
-
BOS
20h 35m
2 stops
Multiple Airlines Logo
20:50 - 15:30
BOS
-
BFS
13h 40m
2 stops
£614Multiple Airlines
Tue, 26 May - Tue, 2 Jun
Multiple Airlines Logo
08:55 - 15:35
BFS
-
BOS
35h 40m
2 stops
Multiple Airlines Logo
17:40 - 22:45
BOS
-
BFS
24h 05m
2 stops
£623Multiple Airlines
Mon, 11 May - Mon, 18 May
Multiple Airlines Logo
10:05 - 09:45
BFS
-
BOS
28h 40m
3 stops
Multiple Airlines Logo
20:50 - 23:20
BOS
-
BFS
21h 30m
2 stops
£631Multiple Airlines
Mon, 11 May - Mon, 18 May
American Airlines Logo
15:20 - 13:30
BHD
-
BOS
27h 10m
1 stop
American Airlines Logo
20:10 - 12:55
BOS
-
BHD
11h 45m
1 stop
£636American Airlines
Thu, 10 Sep - Mon, 14 Sep
British Airways Logo
12:45 - 12:35
BHD
-
BOS
28h 50m
1 stop
British Airways Logo
06:30 - 08:50
BOS
-
BHD
21h 20m
2 stops
£645British Airways
Thu, 10 Sep - Mon, 14 Sep
British Airways Logo
12:45 - 12:35
BHD
-
BOS
28h 50m
1 stop
British Airways Logo
14:00 - 15:30
BOS
-
BHD
20h 30m
2 stops
£647British Airways
Thu, 10 Sep - Mon, 14 Sep
British Airways Logo
20:35 - 19:27
BHD
-
BOS
27h 52m
2 stops
British Airways Logo
12:45 - 15:30
BOS
-
BHD
21h 45m
2 stops
£649British Airways
Thu, 10 Sep - Mon, 14 Sep
British Airways Logo
20:35 - 19:27
BHD
-
BOS
27h 52m
2 stops
British Airways Logo
15:07 - 15:30
BOS
-
BHD
19h 23m
2 stops
£650British Airways
Thu, 10 Sep - Mon, 14 Sep
British Airways Logo
20:35 - 15:22
BHD
-
BOS
23h 47m
2 stops
British Airways Logo
14:00 - 15:30
BOS
-
BHD
20h 30m
2 stops
£651British Airways
Tue, 26 May - Tue, 2 Jun
Multiple Airlines Logo
12:40 - 15:35
BHD
-
BOS
31h 55m
2 stops
Multiple Airlines Logo
17:40 - 20:50
BOS
-
BHD
22h 10m
2 stops
£653Multiple Airlines
Booking Insights

KAYAK’s insights & trends for Belfast to Boston flights

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.

How much is a return flight from Belfast to Boston?

This analysis is based on the cheapest return trip price found on KAYAK in the last 12 months by searching for a flight from Belfast to Boston departing in May.

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 round-trip 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 January, where tickets cost £0 (return) on average. On the other hand, the most expensive months are December and July, where the average cost of round-trip tickets is £689 and £525 respectively.

Find deals

Good to know - Cheap tickets from Belfast to Boston

Cheapest flight£272
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 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 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 £272 for a one-way ticket and £614 for a return.

  • 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 is the only airline alliance operating flights between Belfast and Boston.

  • 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 return 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.

Reviews of the top airline flying from Belfast 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 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.
6.7
British AirwaysOverall score based on 7931 reviews
7.7Crew
6.9Boarding
6.4Entertainment
6.8Comfort
6.4Food
Airline reviews

A shout-out to the flight attendent, Lauren, who was the main person assisting me. She was amazing - perfect balance of bright, cheerful, engaging, yet formal

10.0 ExcellentEric, Apr 2026
LHR - IAD
Read more British Airways reviews

A shout-out to the flight attendent, Lauren, who was the main person assisting me. She was amazing - perfect balance of bright, cheerful, engaging, yet formal

OK, except for a cabin attendant's lack of attention.

efficient. on time. cabin crew were very professional and very nice to deal with. would definately fly BA again.

It was great overall. A few slight improvements could be made on the onboarding process at the Gates with announcements and clarity of communications (both at the gate and in flight). The movies in the entertainment options could be improved for bollywood, hollywood.

I alrady responded to this request, and expllaned at length that this was the worst flying experience in my 77 years. I will NEVER fly BA again.

Airbus A350 is poorly designed for wheelchair users and reduced mobility passengers. The angle of the pods makes it awkward to transfer. I was able to but I have ab stability. It could be a real challenge for people with more severe mobility impairments. You'd think Airbus would have come up with a solution for this or thought more about us disabled folks more when designing this aircraft.

The crew has always been great on BA. They are very friendly and accommodating. I like that they have vegetarian options already in the menu. And the free wine is a nice perk.) I noticed (both directions of my trip) minor upgrades/ replacements needed on the plane itself (touch screen didn't work with touch; bathroom light didn't go on). However, this is one of my favorite airlines.

Everything was spectacular except the boarding. It was just a mob of people while all groups were called over the public address system.

The Britts are wonderful to fly with and the crew were very hospitable. Again, I really wish they had been able to retrieve my carryon bag from baggage claim before the flight so I could be in a less worrisome state of mind, but that's not on them. I completely understand. The window seats with the dimmable windows were very cool!

There was a delay for the San Francisco-London flight, but we were all informed via text and email. The staff was very friendly and nice and the food was good. I do recommend that the airline offer something without eggs or something vegan for the vegetarian meal option. A lot of Indians are lacto-vegetarian, while some could be allergic to eggs/dairy.

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

Information on your arrival and departure airports

Boston (BOS)