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Cheap flights from London, ON to Boston from C$ 395

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 31/8. Fares are subject to change and may not be available on all flights or dates of travel.
YXU — BOS
17 Aug — 24 Aug1
1 adult
1 adult, Economy, 0 bags

Cheap flight deals from London to Boston

Enter your travel dates to find the best prices.

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 18 July 2026.

Sun 30/82:40 p.m.
YXU
-
BOS
2 stops31h 40m
WestJet
Sun 6/96:30 p.m.
BOS
-
YXU
1 stop10h 50m
WestJet
Deal found 16/7C$ 675
Mon 31/86:10 a.m.
YXU
-
BOS
1 stop16h 10m
Multiple Airlines
Mon 7/97:00 a.m.
BOS
-
YXU
3 stops22h 20m
Multiple Airlines
Deal found 17/7C$ 735
Tue 1/129:15 a.m.
YXU
-
BOS
1 stop5h 02m
Air Canada
Thu 3/125:30 a.m.
BOS
-
YXU
2 stops9h 12m
Air Canada
Deal found 16/7C$ 736
Fri 9/1010:05 a.m.
YXU
-
BOS
1 stop6h 05m
Air Canada
Wed 14/105:00 p.m.
BOS
-
YXU
1 stop4h 40m
Air Canada
Deal found 13/7C$ 763
Sun 30/82:40 p.m.
YXU
-
BOS
3 stops25h 20m
Multiple Airlines
Sun 6/96:30 p.m.
BOS
-
YXU
1 stop10h 50m
Multiple Airlines
Deal found 16/7C$ 764
Sun 6/95:40 a.m.
YXU
-
BOS
2 stops9h 01m
Air Canada
Wed 9/912:30 p.m.
BOS
-
YXU
1 stop5h 13m
Air Canada
Deal found 13/7C$ 769

Find 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 18 July 2026.

Round-trip from

C$ 675

One-way from

C$ 395
WestJet
  • WestJet
  • 30/8-6/9
  • 3 total stops
  • 42h 30m total
  • London to Boston
Search Deals
Air Canada
  • Air Canada
  • 31/8
  • 1 total stop
  • 6h 12m total
  • London to Boston
Search Deals

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 629,999 searches. Data last updated 18 July 2026.
Use the filters below to find and compare flights from London to Boston that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

LondonBoston

YXU - BOS

YXUBOS

London

Sun 30/8

5:55 p.m.-10:20 p.m.

1 stop28h 25m

Boston Logan Intl

Sun 6/9

7:25 a.m.-5:20 a.m.

1 stop21h 55m

C$ 687

LondonBoston

YXU - BOS

YXUBOS

London

Tue 1/12

9:15 a.m.-2:53 p.m.

2 stops5h 38m

Boston Logan Intl

Thu 3/12

5:30 a.m.-2:42 p.m.

2 stops9h 12m

C$ 740

LondonBoston

YXU - BOS

YXUBOS

London

Mon 31/8

6:10 a.m.-10:20 p.m.

1 stop16h 10m

Boston Logan Intl

Mon 7/9

3:35 p.m.-5:20 a.m.

2 stops13h 45m

C$ 749

LondonBoston

YXU - BOS

YXUBOS

London

Sun 6/9

6:10 a.m.-5:40 p.m.

1 stop11h 30m

Boston Logan Intl

Wed 9/9

6:30 p.m.-5:20 a.m.

1 stop10h 50m

C$ 832

LondonBoston

YXU - BOS

YXUBOS

London

Sun 30/8

2:40 p.m.-4:00 p.m.

3 stops25h 20m

Boston Logan Intl

Sun 6/9

10:40 a.m.-5:20 a.m.

3 stops18h 40m

C$ 834

LondonBoston

YXU - BOS

YXUBOS

London

Fri 28/8

6:20 p.m.-10:38 p.m.

1 stop4h 18m

Boston Logan Intl

Fri 4/9

7:15 p.m.-9:20 a.m.

1 stop14h 05m

C$ 864

LondonBoston

YXU - BOS

YXUBOS

London

Fri 28/8

5:40 a.m.-9:53 a.m.

1 stop4h 13m

Boston Logan Intl

Fri 4/9

7:10 a.m.-5:20 a.m.

3 stops22h 10m

C$ 872
Quickest round-trip

LondonBoston

YXU - BOS

YXUBOS

London

Sun 6/9

10:05 a.m.-6:07 p.m.

2 stops8h 02m

Boston Logan Intl

Wed 9/9

4:55 p.m.-9:40 p.m.

1 stop4h 45m

C$ 874

LondonBoston

YXU - BOS

YXUBOS

London

Sat 9/1

9:15 a.m.-2:18 p.m.

1 stop5h 03m

Boston Logan Intl

Tue 12/1

5:30 a.m.-2:42 p.m.

2 stops9h 12m

C$ 875
Cheapest one-way

LondonBoston

YXU - BOS

YXUBOS

London

Mon 31/8

5:40 a.m.-11:52 a.m.

1 stop6h 12m

C$ 395

Flights are sorted by cheapest round-trip flights first.

Deals found on 17/7

Showing 1-10 of 17 resultsSorted by cheapest first
1
2

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.

Reviews of airlines servicing Boston

Get insights into the airlines that provide service to Boston. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Boston. Reviews last updated 18 July 2026.
Read reviews from past customers who have flown Air Canada from London to Boston. Users can see the overall rating for each airline as well as how each is rated in terms of entertainment options, comfort, food, crew/service, and boarding process.
Air Canada
7.1
Good
11,351 reviews
Check prices

Crew

7.8

Overall

7.1

Boarding

7.3

Comfort

7.1

Food

6.3

Entertainment

6.8

Reviews

1 / 20
10.0
Excellent

Anonymous,Nov 2025

YYZ - LAS

It's was great and the crew are very nice, captain has a smooth land on the runway 👍
Air Canada
7.1
Good
11,351 reviews
Air Canada
7.1
Good
11,351 reviews
Check prices

Crew

7.8

Overall

7.1

Boarding

7.3

Comfort

7.1

Food

6.3

Entertainment

6.8

Reviews

1 / 20
10.0
Excellent

Anonymous,Nov 2025

YYZ - LAS

It's was great and the crew are very nice, captain has a smooth land on the runway 👍

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?

    There are many flights that can get you from London, Ontario to Boston in 5h 38m. Fly via WestJet or Air Canada to get the fastest option. There are 830 km between London, Ontario and Boston. When browsing for deals, the options you’ll see will be for both direct flights and flights with stops.

  • What is the cheapest airline to fly from London, Ontario to Boston round-trip?

    Air Canada, at C$ 394, was found to be the cheapest airline from London, Ontario to Boston..

  • 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.

See more FAQs

Travelling to a place near Boston?

Book flights to Boston if you plan to visit one of these locations
Old Orchard Beach
Hampton
Merrimack
Saugus
Braintree
Milford
Revere
Waltham
Watertown
Warwick
Ogunquit
Lawrence
Pawtucket
Seekonk
Nashua
Kittery

Browse thousands of different options on Cheapflights for your next trip

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Top airline flying from London to Boston

Discover the top airline that operate flights from London to Boston. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 629,999 searches. Data last updated 18 July 2026.
AirlineCheapestAverageFlexibilityOn-time
Air CanadaCheapestC$ 394AverageC$ 1,161FlexibilityNo cancel feeOn-time67%
Search Air Canada flights

Fly with Cheapflights

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How does Cheapflights help users find flights from London to Boston?

Deals for London to Boston flights are sourced from 900+ travel sites when you use Cheapflights. When all flight results come back, Cheapflights lets you sort and filter flights using different criteria to choose better, like price, airport, cabin class, and plenty of other options.

Why should you use Cheapflights to find cheap flight tickets from London to Boston?

It’s simple! Cheapflights, which is free to use for everyone, saves millions of users time and money every year by helping them find the cheapest and most suitable flights from London to Boston.

Can Cheapflights find flights from London to Boston with no change fees?

Users can book flights with no change fees policies with our dedicated filters. Book flights from London to Boston flexibly with Cheapflights today.

Can Cheapflights notify me if prices for flights from London to Boston become cheaper?

Yes! Start tracking prices for London to Boston flights today and get alerted whenever prices for these flights change. To access this feature, click the bell icon next to the flight deals above, which will prompt you for a valid email address to receive your alerts.

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