YXU - BOS

C$ 404 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 24/1. 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$ 724
Air Canada
Mon 26/1Mon 2/2
YXU - BOS • 1 stop
Cheapest one-way flights
C$ 404
Air Canada
Sat 24/1
YXU - BOS • 1 stop
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KAYAK searches hundreds of sites at once to find you the best travel deals.
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

Mon, 26 Jan - Mon, 2 Feb
Air Canada Logo
5:40 p.m. - 10:37 p.m.
YXU
-
BOS
4h 57m1 stop
Air Canada Logo
1:00 p.m. - 5:05 p.m.
BOS
-
YXU
4h 05m1 stop
C$ 724Air Canada
Mon, 26 Jan - Mon, 2 Feb
Air Canada Logo
5:10 a.m. - 2:52 p.m.
YXU
-
BOS
9h 42m2 stops
Air Canada Logo
10:15 a.m. - 9:20 p.m.
BOS
-
YXU
11h 05m2 stops
C$ 727Air Canada
Mon, 26 Jan - Mon, 2 Feb
Multiple Airlines Logo
8:10 p.m. - 4:19 p.m.
YXU
-
BOS
20h 09m3 stops
Multiple Airlines Logo
5:30 a.m. - 6:35 a.m.
BOS
-
YXU
25h 05m3 stops
C$ 734Multiple Airlines
Mon, 26 Jan - Mon, 2 Feb
Multiple Airlines Logo
8:10 p.m. - 3:57 p.m.
YXU
-
BOS
19h 47m2 stops
Multiple Airlines Logo
5:30 a.m. - 6:35 a.m.
BOS
-
YXU
25h 05m3 stops
C$ 741Multiple Airlines
Sun, 11 Jan - Tue, 13 Jan
Air Canada Logo
5:40 p.m. - 10:37 p.m.
YXU
-
BOS
4h 57m1 stop
Air Canada Logo
10:45 a.m. - 5:05 p.m.
BOS
-
YXU
6h 20m1 stop
C$ 752Air Canada
Sun, 11 Jan - Tue, 13 Jan
Air Canada Logo
5:40 p.m. - 10:37 p.m.
YXU
-
BOS
4h 57m1 stop
Air Canada Logo
4:35 p.m. - 9:21 p.m.
BOS
-
YXU
4h 46m1 stop
C$ 754Air Canada
Sun, 11 Jan - Tue, 13 Jan
Air Canada Logo
9:50 a.m. - 7:42 p.m.
YXU
-
BOS
9h 52m2 stops
Air Canada Logo
4:35 p.m. - 9:21 p.m.
BOS
-
YXU
4h 46m1 stop
C$ 756Air Canada
Sun, 11 Jan - Tue, 13 Jan
Air Canada Logo
5:10 a.m. - 2:52 p.m.
YXU
-
BOS
9h 42m2 stops
Air Canada Logo
10:45 a.m. - 5:05 p.m.
BOS
-
YXU
6h 20m1 stop
C$ 757Air Canada
Sun, 11 Jan - Tue, 13 Jan
Air Canada Logo
5:10 a.m. - 2:52 p.m.
YXU
-
BOS
9h 42m2 stops
Air Canada Logo
1:00 p.m. - 5:05 p.m.
BOS
-
YXU
4h 05m1 stop
C$ 758Air Canada
Sun, 11 Jan - Tue, 13 Jan
Air Canada Logo
5:10 a.m. - 2:52 p.m.
YXU
-
BOS
9h 42m2 stops
Air Canada Logo
10:15 a.m. - 9:21 p.m.
BOS
-
YXU
11h 06m2 stops
C$ 760Air Canada
Booking Insights

KAYAK's insights & trends for London to Boston flights

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

Which airlines fly direct between London and Boston?

Airline and price data is aggregated from results in KAYAK’s search results from the last 2 weeks for round-trip flights from London to Boston.

There is just one airline that flies from London to Boston direct and that is Air Canada. The best round-trip deal found from Air Canada for the route is C$ 428.

Find deals

Good to know

Cheapest flightC$ 404
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 3 days, the lowest price for a flight from London to Boston was C$ 404 for a one-way ticket and C$ 752 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 10516 reviews
6.3Food
7.3Boarding
7.1Comfort
7.8Crew
6.8Entertainment
Airline reviews

It's kindof ridiculous that your system is even asking me about this since my flight was canceled and I wasn't rescheduled.

2.0 MediocreAnonymous, Nov 2025
YYZ - ORD
Read more Air Canada reviews

It's kindof ridiculous that your system is even asking me about this since my flight was canceled and I wasn't rescheduled.

3 hr delay at the gate while they were doing maintenance. Next time, do not board passengers while maintenance is being performed

Digital check in is very poor with air canada compaired to other airlines

Baggage delayed we had to catch our cruise without any clothes 😒

Air Canada Rouge is great. Toronto Airport is the usual nightmare

Good but need to be better with the flight times.

The staff was great and made the long trip easy peasy!

The free Wi-fi for Aeroplan members was a great touch. The time passed quickly. I found the seats seemed a little closer together than I remember. Not Air Canada's fault, but we were about 20 minutes late landing because the airport was too busy. We had to circle around for a while. The boarding and disembarking went very smoothly.

Too many delays. Seats too small. A budget airline. Will never fly Air Canada again.

Extremely turbulent landing. Crew was friendly and plane comfortable. Airport and US pre clearance was understaffed

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

Information on your arrival and departure airports

London (YXU)
Boston (BOS)