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Cheap flights from London Heathrow Airport to London, ON from C$ 747

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 8/7. Fares are subject to change and may not be available on all flights or dates of travel.
LHR — YXU
10 Jul — 17 Jul1
1 adult
1 adult, Economy, 0 bags

Cheap flight deals from Heathrow to London

Enter your travel dates to find the best prices.

Cheapest flights from Heathrow to London
Explore the most affordable flight options available from Heathrow to London. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 10 June 2026.

Wed 1/77:25 a.m.
LHR
-
YXU
2 stops19h 15m
Multiple Airlines
Tue 7/73:30 p.m.
YXU
-
LHR
2 stops21h 20m
Multiple Airlines
Deal found 5/6C$ 973
Mon 9/119:00 a.m.
LHR
-
YXU
2 stops17h 46m
Air Canada
Sat 21/113:25 p.m.
YXU
-
LHR
1 stop12h 05m
Air Canada
Deal found 7/6C$ 975
Fri 18/96:00 a.m.
LHR
-
YXU
2 stops16h 43m
Air Canada
Tue 22/96:20 p.m.
YXU
-
LHR
1 stop10h 15m
Air Canada
Deal found 8/6C$ 977
Wed 1/79:30 a.m.
LHR
-
YXU
2 stops13h 12m
Air Canada
Tue 7/73:30 p.m.
YXU
-
LHR
1 stop10h 05m
Air Canada
Deal found 7/6C$ 982
Wed 1/72:10 p.m.
LHR
-
YXU
2 stops12h 30m
Lufthansa
Tue 7/76:20 p.m.
YXU
-
LHR
1 stop9h 15m
Lufthansa
Deal found 8/6C$ 984
Thu 25/66:50 a.m.
LHR
-
YXU
2 stops13h 07m
Air Canada
Sat 4/710:05 a.m.
YXU
-
LHR
2 stops17h 30m
Air Canada
Deal found 6/6C$ 991
Mon 7/911:05 a.m.
LHR
-
YXU
2 stops32h 50m
Air Canada
Sun 13/96:20 p.m.
YXU
-
LHR
2 stops21h 40m
Air Canada
Deal found 5/6C$ 993
Mon 31/88:30 a.m.
LHR
-
YXU
1 stop14h 15m
Air Canada
Sun 6/93:30 p.m.
YXU
-
LHR
1 stop12h 05m
Air Canada
Deal found 5/6C$ 997

Find flight deals from Heathrow to London

Discover tips and strategies to find the most affordable flight options for your journey from Heathrow (LHR) to London (YXU). 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 10 June 2026.

Round-trip from

C$ 973

One-way from

C$ 747

Popular in

December

Cheapest in

February

Average price

C$ 1,442
SWISS
  • SWISS
  • 1/7-7/7
  • 4 total stops
  • 40h 35m total
  • London to London
Search Deals
8/7
  • 8/7
  • 3 total stops
  • 51h 00m total
  • London to London
Search Deals
Highest demand for flights based on searches. 40% potential increase in price (C$ 1,253 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 8% potential price decrease (C$ 141 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in June 2026
Search Deals

Cheapflights Fare Finder

 
Customize your flight search to find flights from Heathrow to London 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 10 June 2026.
Use the filters below to find and compare flights from London Heathrow Airport to London that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

LondonLondon

LHR - YXU

LHRYXU

London Heathrow

Mon 9/11

9:00 a.m.-9:46 p.m.

2 stops17h 46m

London

Sat 21/11

3:25 p.m.-8:30 a.m.

1 stop12h 05m

C$ 975

LondonLondon

LHR - YXU

LHRYXU

London Heathrow

Fri 18/9

6:00 a.m.-5:43 p.m.

2 stops16h 43m

London

Tue 22/9

6:20 p.m.-9:00 p.m.

2 stops21h 40m

C$ 977

LondonLondon

LHR - YXU

LHRYXU

London Heathrow

Wed 1/7

9:30 a.m.-5:42 p.m.

2 stops13h 12m

London

Tue 7/7

3:30 p.m.-6:35 a.m.

1 stop10h 05m

C$ 982

LondonLondon

LHR - YXU

LHRYXU

London Heathrow

Sun 6/9

5:40 p.m.-9:20 a.m.

1 stop20h 40m

London

Sun 13/9

3:30 p.m.-6:35 a.m.

1 stop10h 05m

C$ 996
Quickest round-trip

LondonLondon

LHR - YXU

LHRYXU

London Heathrow

Mon 7/9

8:30 a.m.-2:55 p.m.

1 stop11h 25m

London

Sun 13/9

3:30 p.m.-6:35 a.m.

1 stop10h 05m

C$ 997

LondonLondon

LHR - YXU

LHRYXU

London Heathrow

Thu 25/6

9:30 a.m.-5:32 p.m.

2 stops13h 02m

London

Sat 4/7

10:05 a.m.-6:35 a.m.

1 stop15h 30m

C$ 1,026
Cheapest one-way

LondonLondon

LHR - YXU

LHRYXU

London Heathrow

Wed 8/7

3:50 p.m.-1:50 p.m.

3 stops51h 00m

C$ 747

LondonLondon

LHR - YXU

LHRYXU

London Heathrow

Wed 8/7

12:40 p.m.-9:17 a.m.

2 stops25h 37m

C$ 812

LondonLondon

LHR - YXU

LHRYXU

London Heathrow

Thu 2/7

9:30 a.m.-9:40 p.m.

2 stops17h 10m

C$ 839
Quickest one-way

LondonLondon

LHR - YXU

LHRYXU

London Heathrow

Thu 2/7

8:30 a.m.-2:55 p.m.

1 stop11h 25m

C$ 846

Flights are sorted by cheapest round-trip flights first.

Deals found on 7/6

Showing 1-10 of 15 resultsSorted by cheapest first
1
2

Best time to book a flight from Heathrow to London

Have a flexible travel schedule? Discover the best time to fly to London from Heathrow 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 Heathrow Airport to London

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

Related info for your journey

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

  • What airport do you fly into for flights to London from London Heathrow?

    Most people fly into London (YXU) if they book a flight to London from London Heathrow. On average, London has 0 inbound flights from London Heathrow per day from 0 airlines. London is conveniently located just 8.6 km from London’s city centre.

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

    There are many flights that can get you from London Heathrow Airport to London, Ontario in 17h 46m. Fly via Air Canada to get the fastest option. The distance from London Heathrow Airport to London, Ontario is about 5844 km.

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

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

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

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

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

    Yes. Cheapflights offers flight deals from Heathrow to London 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 London?

Book flights to London if you plan to visit one of these locations
Port Stanley
Grand Bend

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

Need flexible booking options for your flight to London from Heathrow? Don’t worry, Cheapflights have you covered. Use our search filter to only show flights with no change fees.

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Yes, and it’s super simple to set up. Click the bell icon next to the flight deals above and provide a valid email address to enable Price Alerts. That’s it!

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