YXU - BOS

C$ 422 Find Cheap Flights from London 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 London to Boston departing on 8/7. 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 London 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 London to Boston, as well as popular online travel agencies
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Everything you should know

Cheapest round-trip
C$ 748
Air Canada
Sat 5/12Tue 8/12
YXU - BOS • 1 stop
Cheapest one-way flights
C$ 422
Air Canada
Wed 8/7
YXU - BOS • 1 stop
Direct flights
Not available
There are currently no direct flights between London and Boston. You’ll need at least 1 connection.
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We hope you love your trip to Boston!
Flight Deals
Booking Insights
Flight Deals

Cheap Flights from London to Boston (YXU-BOS)

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from London 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 London to Boston

Sat, 5 Dec - Tue, 8 Dec
Air Canada Logo
5:45 a.m. - 12:12 p.m.
YXU
-
BOS
6h 27m
1 stop
Air Canada Logo
4:40 p.m. - 9:46 p.m.
BOS
-
YXU
5h 06m
1 stop
C$ 748Air Canada
Sat, 25 Jul - Sat, 1 Aug
Air Canada Logo
10:05 a.m. - 6:07 p.m.
YXU
-
BOS
8h 02m
2 stops
Air Canada Logo
5:45 a.m. - 2:52 p.m.
BOS
-
YXU
9h 07m
2 stops
C$ 751Air Canada
Sat, 5 Dec - Tue, 8 Dec
Air Canada Logo
5:45 a.m. - 9:57 a.m.
YXU
-
BOS
4h 12m
1 stop
Air Canada Logo
5:30 a.m. - 3:06 p.m.
BOS
-
YXU
9h 36m
2 stops
C$ 752Air Canada
Wed, 2 Dec - Sat, 5 Dec
Air Canada Logo
9:45 a.m. - 4:57 p.m.
YXU
-
BOS
7h 12m
2 stops
Air Canada Logo
10:40 a.m. - 3:06 p.m.
BOS
-
YXU
4h 26m
1 stop
C$ 754Air Canada
Wed, 23 Sep - Thu, 24 Sep
Air Canada Logo
10:05 a.m. - 4:10 p.m.
YXU
-
BOS
6h 05m
1 stop
Air Canada Logo
10:50 a.m. - 2:55 p.m.
BOS
-
YXU
4h 05m
1 stop
C$ 755Air Canada
Sat, 5 Dec - Tue, 8 Dec
Air Canada Logo
5:45 a.m. - 2:37 p.m.
YXU
-
BOS
8h 52m
2 stops
Air Canada Logo
5:30 a.m. - 3:06 p.m.
BOS
-
YXU
9h 36m
2 stops
C$ 757Air Canada
Wed, 2 Dec - Sat, 5 Dec
Air Canada Logo
9:45 a.m. - 8:17 p.m.
YXU
-
BOS
10h 32m
2 stops
Air Canada Logo
3:20 p.m. - 9:46 p.m.
BOS
-
YXU
6h 26m
2 stops
C$ 758Air Canada
Wed, 2 Dec - Sat, 5 Dec
Air Canada Logo
9:45 a.m. - 8:17 p.m.
YXU
-
BOS
10h 32m
2 stops
Air Canada Logo
3:20 p.m. - 9:46 p.m.
BOS
-
YXU
6h 26m
2 stops
C$ 759Air Canada
Mon, 13 Jul - Sun, 19 Jul
Air Canada Logo
6:20 p.m. - 10:38 p.m.
YXU
-
BOS
4h 18m
1 stop
Air Canada Logo
5:45 a.m. - 2:52 p.m.
BOS
-
YXU
9h 07m
2 stops
C$ 762Air Canada
Wed, 23 Sep - Thu, 24 Sep
Air Canada Logo
5:40 a.m. - 9:55 a.m.
YXU
-
BOS
4h 15m
1 stop
Air Canada Logo
5:50 a.m. - 2:55 p.m.
BOS
-
YXU
9h 05m
2 stops
C$ 766Air Canada
Booking Insights

Good to know

Cheapest flightC$ 422
Flight from London to Boston

When to book flights from London to Boston

Are your dates flexible? Find out the best times to travel from London 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 London to Boston

  • What is the cheapest flight from London to Boston?

    In the last 5 days, the lowest price for a flight from London to Boston was C$ 422 for a one-way ticket and C$ 748 for a round-trip.

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

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

  • Which airline alliances offer flights from London to Boston?

    Star Alliance is the only airline alliance operating flights between London and Boston.

  • How does KAYAK find such low prices on flights from London 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 London to Boston.

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

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Boston from London 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 London 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 London with another airline.

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

 
See real verified KAYAK customer reviews for airlines flying from London 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 London 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.
7.1
Air CanadaOverall score based on 11194 reviews
6.8Entertainment
6.3Food
7.8Crew
7.3Boarding
7.1Comfort
Airline reviews

The flight was good. My luggage didn’t land with me when I arrived in Columbus. So grateful I was able to get my luggage back within the 2 hours😍👍.

8.0 ExcellentAnonymous, Jun 2026
YOW - IAD
Read more Air Canada reviews

The flight was good. My luggage didn’t land with me when I arrived in Columbus. So grateful I was able to get my luggage back within the 2 hours😍👍.

It was a nice and smooth trip. Gave a friendly environment throughout the journey.

Meal and drink service was good. Old plane with old business class seats were quite disappointing

Flight operated by PAL. We boarded, and one engine started. The crew found some problem that could not be fixed. The flight was canceled. This run from yhz-bos is very unreliable.

Flight itself was not bad at all. However: my checked bag (checked in Calgary) did not make it onto this flight as I found out after I landed at EWR. I still don't have it but it appears that it is on its way to me.

Flight and attendance were very good we had 2 hour delay that took the shine of it

The seat design in the premium economy section leaves virtually no room under the seat to store a bag or purse. Other than that, it was a great flight. Arrived early.

The flight was delayed, but not for weather. We landed over 3hrs later than planned.

The stag were helpful, kind and liked the passengers. The plane was pristinely clean! Great flight!

My flight was delayed more than once, but Air Canada updated us regularly. Friends on other airlines had much worse experiences.

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

Information on your arrival and departure airports

London (YXU)
Boston (BOS)