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YXU - BOS

$368 Find cheap flights from London, Ontario to Boston

This is the cheapest round-trip flight price found by a KAYAK user in the last 72 hours by searching for a flight from London to Boston departing on 8/21. 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
Sun 6/9
Sun 6/16

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 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
In the last 7 days travelers have searched 43,156,178 times on KAYAK, and here is why:

Save 21% or moreCompare multiple travel sites with one search.

Track pricesNot ready to book? Create a price alert for when prices drop.

Filter your dealsChoose cabin class, free Wi-Fi and more.

Bundle and saveSave money when you bundle your flight + hotel.

Cheap flight deals 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 and deals for you by selecting your travel dates.
Choose your dates
6:20 pm - 10:39 pmYXU-BOS
4h 19m1 stop
6:00 am - 2:45 pmBOS-YXU
8h 45m2 stops
$368Air Canada
Find Deal
Wed, Aug 21 - Wed, Aug 28
6:20 pm - 10:39 pmYXU-BOS
4h 19m1 stop
6:05 am - 2:45 pmBOS-YXU
8h 40m1 stop
$384Air Canada
Find Deal
Mon, Jul 22 - Mon, Aug 5
9:50 am - 3:09 pmYXU-BOS
5h 19m1 stop
6:05 am - 2:45 pmBOS-YXU
8h 40m1 stop
$385Air Canada
Find Deal
Fri, Jun 21 - Mon, Jun 24
9:50 am - 10:39 pmYXU-BOS
12h 49m1 stop
6:00 am - 2:45 pmBOS-YXU
8h 45m2 stops
$390Air Canada
Find Deal
Fri, Jun 21 - Mon, Jun 24
9:50 am - 3:09 pmYXU-BOS
5h 19m1 stop
6:05 am - 2:45 pmBOS-YXU
8h 40m1 stop
$404Air Canada
Find Deal
Wed, Aug 21 - Wed, Aug 28
9:50 am - 5:18 pmYXU-BOS
7h 28m2 stops
6:05 am - 5:45 pmBOS-YXU
11h 40m1 stop
$436Air Canada
Find Deal
Mon, Jul 22 - Mon, Aug 5
6:00 am - 5:28 pmYXU-BOS
11h 28m2 stops
6:00 am - 2:45 pmBOS-YXU
8h 45m2 stops
$465Air Canada
Find Deal
Fri, Jun 21 - Mon, Jun 24
6:00 am - 2:38 pmYXU-BOS
8h 38m2 stops
6:00 am - 2:45 pmBOS-YXU
8h 45m2 stops
$506Air Canada
Find Deal
Mon, Jul 22 - Mon, Aug 5
3:20 pm - 2:40 pmYXU-BOS
23h 20m3 stops
10:40 am - 9:35 pmBOS-YXU
10h 55m2 stops
Mon, Jul 22 - Mon, Aug 5
6:15 am - 11:17 amYXU-BOS
29h 02m3 stops
6:30 am - 5:18 amBOS-YXU
22h 48m3 stops
$1,016
Find Deal
Fri, Jun 21 - Mon, Jun 24

Good to know

Low season

February

High season

October

Cheapest flight

$368
Best time to beat the crowds with an average 23% drop in price.
Most popular time to fly with an average 21% increase in price.
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, Ontario to Boston?

    In the last 3 days, the lowest price for a flight from London, Ontario to Boston was $368 for a round-trip ticket.

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

    Yes, you'll most likely have to show a valid passport before boarding the plane in London and on arrival in Boston.

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

    London airport is called London and the only airport in Boston is Boston Logan Intl.

  • 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. Booking your flights between London 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 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.

See more FAQs

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.
7.0
Air CanadaOverall score based on 6929 reviews
7.0Comfort
6.2Food
7.2Boarding
6.8Entertainment
7.8Crew
Airline reviews

Everything was great. I really like how they had their safety film set up showing you the beauty of the country.

10.0 ExcellentAnonymous, May 2024YYZ - CLT
Read more about Air Canada reviews

Everything was great. I really like how they had their safety film set up showing you the beauty of the country.

I liked the early check in. Flight was a bit bumpy due yo weather. Overall, everything went well.

Limited snack options cause the snack vendor was on strike

It was an excellent experience, traveling from Toronto to Denver with United.

Ontime boarding. Almost 1 hour take off delay. We could have boarded slightly later since the pilots were in traffic

This was the first AC flight in a long time that we experienced no delays or frustrations. The gate attendant was extremely polite and accommodating to my husband who has Parkinson’s disease which made boarding extremely stress free. Flight departed ON TIME and was a smooth ride. If only all my AC experiences could be like this.

I didn’t like the fact that all the customs officers went to lunch so I was in line for 90 minutes due to where the staff directed me. We were told three very different reasons for why the plane was delayed. It was a crowded plane with difficult storage situations for the Carry On bags. The Air Canada airline staff were all very good and professional. I was so disappointed in my cheese and fruit box as the cheese had molded and the fruit wasn’t fresh so I couldn’t eat the majority of the food. This was the last meal I could find as the restaurants had closed when I got in to my destination. I think you could work on improving the food quality.

Once again my complaint is how close the seats are together. Also, the bathrooms were not very clean by the second half of the flight.

Excellent in flight service, perhaps the best we've ever had. Business class feels tired and needs improvement to compete with other airlines. The food looked good but tasted terrible. Check in was quick, the flight arrived early and our luggage was on our flight with us.

The staff were so kind and helpful. We flew back from NY with another airline and it was horrible. We will always stick with Air Canada as everything was far better!

Last minute flights from London to Boston

Last minute flight, train and bus deals

 
These last-minute flight deals are the cheapest flights found on KAYAK in the last 72 hours for flights from London to Boston that are departing in the next 10 days.
5/14Tue
multi-stopAir Canada
5h 18mYXU-BOS
5/15Wed
multi-stopAir Canada
5h 31mBOS-YXU
$1,001
5/14Tue
multi-stopAir Canada
5h 18mYXU-BOS
5/15Wed
multi-stopAir Canada
5h 31mBOS-YXU
$1,061

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London - Boston Flights

Departure:

London (undefined)Canada

Destination:

Boston (BOS)United States

Return flight deals:

Boston - London

Cabin classes: