HomeSearch by dateVacation packagesHotelsFlight dealsCar rentalTravel tips & news
Boston

$255+ Cheap flights from London, ON (YXU) to Boston (BOS)

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 10/26. Fares are subject to change and may not be available on all flights or dates of travel.
YXU — BOS
Oct 11 — Oct 181
Sat 10/11
Sat 10/18
1 adult, Economy
We work with more than 300 partners to bring you better travel deals

Find cheap flights from London to Boston with Cheapflights

1. Tell us where you want to go

Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”

2. Select your favorite providers

We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.

3. Compare prices and book

Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.

Cheap flight deals from London to Boston

Discover tips and strategies to find the most affordable flight options for your journey from London (YXU) to Boston (BOS). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated September 11, 2025.

Round-trip from

$405
(Kiwi.com)

One-way from

$255
(Kiwi.com)

Popular in

January

Cheapest in

April

Average price

$884
From London to Boston Logan Intl
Search Deals
One-way flight from London to Boston Logan Intl
Search Deals
High demand for flights, 3% potential price rise
Search Deals
Cheapest flight prices on average. 4% potential price decrease ($27 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in September 2025
Search Deals

Find flight deals from London to Boston

Cheapest flights from London to Boston
Explore the most affordable flight options available from London to Boston. Find the lowest fares from popular airlines and budget airlines, with prices last updated on September 11, 2025.

This Kiwi.com deal was found by Cheapflights users on 9/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/246:00 amYXU - BOS
1 stop11h 40mMultiple Airlines
Mon 10/271:25 pmBOS - YXU
2 stops29h 47mMultiple Airlines
Deal found 9/10$405
This Mytrip deal was found by Cheapflights users on 9/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/108:00 pmYXU - BOS
3 stops25h 25mMultiple Airlines
Thu 10/166:00 amBOS - YXU
3 stops23h 12mMultiple Airlines
Deal found 9/10$451
This Gotogate deal was found by Cheapflights users on 9/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Gotogate is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/109:55 amYXU - BOS
1 stop6h 04mAir Canada
Thu 10/1610:20 amBOS - YXU
2 stops11h 07mAir Canada
Deal found 9/10$488
This Air Canada deal was found by Cheapflights users on 9/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/249:55 amYXU - BOS
1 stop6h 04mAir Canada
Mon 10/271:00 pmBOS - YXU
1 stop4h 06mAir Canada
Deal found 9/10$523
This Air Canada deal was found by Cheapflights users on 9/11. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/106:15 amYXU - BOS
1 stop5h 14mAir Canada
Tue 10/214:45 pmBOS - YXU
1 stop4h 42mAir Canada
Deal found 9/11$546
This Air Canada deal was found by Cheapflights users on 9/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 11/79:25 amYXU - BOS
2 stops9h 47mAir Canada
Mon 11/1710:15 amBOS - YXU
2 stops6h 50mAir Canada
Deal found 9/10$577
This United Airlines deal was found by Cheapflights users on 9/11. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 10/265:40 pmYXU - BOS
1 stop4h 57mUnited Airlines
Sun 11/210:45 amBOS - YXU
1 stop6h 20mUnited Airlines
Deal found 9/11$582
This Air Canada deal was found by Cheapflights users on 9/11. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 9/1210:00 amYXU - BOS
1 stop5h 59mAir Canada
Sun 10/124:45 pmBOS - YXU
1 stop4h 42mAir Canada
Deal found 9/11$948

Cheapflights Fare Finder

 
Customize your flight search to find flights from London to Boston that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated September 11, 2025.
Use the filters below to find and compare flights from London to Boston that are best for you.

Fly from

London

Fly to

Boston

Route

Depart

Return

Price

LondonBoston

YXU - BOS

YXUBOS

London

Fri 10/24

6:00 am-5:40 pm

1 stop11h 40m

Boston Logan Intl

Mon 10/27

1:25 pm-7:12 pm

2 stops29h 47m

$405

LondonBoston

YXU - BOS

YXUBOS

London

Fri 10/10

8:00 pm-9:25 pm

3 stops25h 25m

Boston Logan Intl

Thu 10/16

6:00 am-5:12 am

3 stops23h 12m

$451

LondonBoston

YXU - BOS

YXUBOS

London

Fri 10/10

9:55 am-3:59 pm

1 stop6h 04m

Boston Logan Intl

Thu 10/16

10:20 am-9:27 pm

2 stops11h 07m

$488

LondonBoston

YXU - BOS

YXUBOS

London

Fri 10/24

9:55 am-3:59 pm

1 stop6h 04m

Boston Logan Intl

Mon 10/27

1:00 pm-5:06 pm

1 stop4h 06m

$523

LondonBoston

YXU - BOS

YXUBOS

London

Fri 11/7

9:25 am-3:57 pm

1 stop6h 32m

Boston Logan Intl

Mon 11/17

1:00 pm-5:05 pm

1 stop4h 05m

$523

LondonBoston

YXU - BOS

YXUBOS

London

Fri 10/10

6:15 am-11:29 am

1 stop5h 14m

Boston Logan Intl

Tue 10/21

4:45 pm-9:27 pm

1 stop4h 42m

$546

LondonBoston

YXU - BOS

YXUBOS

London

Sun 10/26

8:00 pm-1:20 pm

3 stops41h 20m

$255

LondonBoston

YXU - BOS

YXUBOS

London

Sun 10/26

5:40 pm-10:37 pm

1 stop4h 57m

$281

LondonBoston

YXU - BOS

YXUBOS

London

Sat 10/25

6:15 am-11:29 am

1 stop5h 14m

$283

LondonBoston

YXU - BOS

YXUBOS

London

Sun 10/26

5:40 pm-10:37 pm

1 stop4h 57m

$311

Flights are sorted by cheapest round-trip flights first.

Deals found on 9/10

Best time to book a flight from London to Boston

Have a flexible travel schedule? Discover the best time to fly to Boston from London with our price prediction graph.
Estimated round-trip price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Cheapflights Insights

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

What is the cheapest month to book a flight from London, Ontario to Boston?

Currently, January is the cheapest month in which you can book a flight from London, Ontario to Boston (average of $218). Flying from London, Ontario to Boston in July is currently the most expensive (average of $311). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

How much does it cost to fly round-trip from London, Ontario to Boston?

Related info for your journey

Find useful and relevant information for your journey from London to Boston. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • How long is the flight from London, Ontario to Boston?

    Airlines like Air Canada fly from London, Ontario to Boston in about 6h 04m. The time it takes to get you to your destination can typically vary by up to . The distance from London, Ontario to Boston is about 516 mi.

  • Can I find deals for flights from London to Boston that include hotel bookings?

    Yes. In addition to deals on London to Boston flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from London to Boston?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from London to Boston.

  • Can I find deals for business class flights from London to Boston?

    Yes. Cheapflights offers flight deals from London to Boston by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

  • What is the cheapest month to book a flight from London, Ontario to Boston?

    Currently, January is the cheapest month in which you can book a flight from London, Ontario to Boston (average of $218). Flying from London, Ontario to Boston in July is currently the most expensive (average of $311). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

See more FAQs

Traveling to a place near Boston?

Book flights to Boston if you plan to visit one of these locations
Cambridge
Medford
Hampton Beach
Watertown
Seabrook
Seekonk
Lincoln
Lowell
Smithfield
Cranston
Chestnut Hill
Chelsea
Warwick
Peabody
Quincy
York Beach
Swansea
Waltham
Saugus
Burlington

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

100% Free

Cheapflights is completely free to use, so you can start saving the moment you arrive.

Book with Flexibility

Our users can plan ahead with confidence and find flights with no change fees

Travel Smart

Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.