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Cheap flights from London Heathrow Airport to London, Ontario from £387

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 3/6. Fares are subject to change and may not be available on all flights or dates of travel.
LHR — YXU
20 May — 27 May1
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 20 April 2026.

Sat 5/917:15
LHR
-
YXU
2 stops29h 30m
Air Canada
Sat 12/918:20
YXU
-
LHR
1 stop12h 30m
Air Canada
Deal found 19/4£555
Wed 16/908:30
LHR
-
YXU
1 stop11h 25m
Air Canada
Sun 20/915:30
YXU
-
LHR
1 stop12h 05m
Air Canada
Deal found 16/4£596
Thu 4/608:45
LHR
-
YXU
2 stops17h 53m
Air Canada
Thu 11/612:20
YXU
-
LHR
2 stops13h 10m
Air Canada
Deal found 20/4£598
Wed 3/608:40
LHR
-
YXU
2 stops17h 58m
Air Canada
Wed 10/612:20
YXU
-
LHR
2 stops15h 15m
Air Canada
Deal found 19/4£599
Thu 4/613:50
LHR
-
YXU
2 stops32h 43m
SWISS
Thu 11/612:20
YXU
-
LHR
2 stops24h 30m
SWISS
Deal found 20/4£610
Mon 18/508:40
LHR
-
YXU
2 stops41h 58m
Air Canada
Mon 25/505:10
YXU
-
LHR
1 stop20h 25m
Air Canada
Deal found 20/4£612

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 20 April 2026.

Round-trip from

£555

One-way from

£387

Popular in

December

Cheapest in

February

Average price

£627
Air Canada
  • Air Canada
  • 5/9-12/9
  • 3 total stops
  • 42h 00m total
  • London to London
Search Deals
3/6
  • 3/6
  • 3 total stops
  • 48h 40m total
  • London to London
Search Deals
Highest demand for flights based on searches. 44% potential increase in price (£387 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 9% potential price decrease (£43 potential savings vs. average return price).
Search Deals
Average for round-trip flights in April 2026
Search Deals

Cheapflights Fare Finder

 
Customise 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 858,174 searches. Data last updated 20 April 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 return flight

LondonLondon

LHR - YXU

LHRYXU

London Heathrow

Wed 16/9

08:30-14:55

1 stop11h 25m

London

Sun 20/9

15:30-08:35

1 stop12h 05m

£596

LondonLondon

LHR - YXU

LHRYXU

London Heathrow

Wed 3/6

08:40-21:38

2 stops17h 58m

London

Wed 10/6

18:10-11:50

1 stop12h 40m

£600

LondonLondon

LHR - YXU

LHRYXU

London Heathrow

Mon 18/5

08:40-21:38

2 stops41h 58m

London

Mon 25/5

05:10-06:35

1 stop20h 25m

£612

LondonLondon

LHR - YXU

LHRYXU

London Heathrow

Tue 2/6

17:40-08:53

1 stop20h 13m

London

Tue 9/6

09:30-06:35

1 stop16h 05m

£626

LondonLondon

LHR - YXU

LHRYXU

London Heathrow

Fri 5/6

06:00-17:33

2 stops16h 33m

London

Tue 9/6

18:10-08:35

1 stop9h 25m

£628

LondonLondon

LHR - YXU

LHRYXU

London Heathrow

Sat 30/5

12:40-21:38

2 stops13h 58m

London

Sat 6/6

12:20-06:30

2 stops13h 10m

£629

LondonLondon

LHR - YXU

LHRYXU

London Heathrow

Thu 25/6

06:50-14:57

2 stops13h 07m

London

Thu 9/7

15:30-08:35

1 stop12h 05m

£635

LondonLondon

LHR - YXU

LHRYXU

London Heathrow

Wed 3/6

19:30-14:58

2 stops24h 28m

London

Wed 10/6

12:20-06:35

1 stop13h 15m

£640

LondonLondon

LHR - YXU

LHRYXU

London Heathrow

Sun 31/5

09:30-17:33

2 stops13h 03m

London

Sun 7/6

18:10-08:35

1 stop9h 25m

£644

LondonLondon

LHR - YXU

LHRYXU

London Heathrow

Mon 1/6

20:05-17:33

2 stops26h 28m

London

Mon 8/6

18:10-08:35

1 stop9h 25m

£646

Flights are sorted by cheapest return flights first.

Deals found on 19/4

Showing 1-10 of 20 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 return 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 for a return flight from London Heathrow Airport to London, Ontario?

Reviews of airlines servicing London

Get insights into the airlines that provide service to London. 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 London. Reviews last updated 20 April 2026.
See what other customers who have flown with Air Canada from London Heathrow Airport to London have to say. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.
Air Canada
7.1
Good
10,943 reviews
Check prices

Boarding

7.3

Comfort

7.1

Food

6.3

Crew

7.8

Entertainment

6.8

Overall

7.1

Reviews

1 / 20
8.0
Excellent

John,Apr 2026

YVR - YOW

Crew was very attentive and meals were good. My wife required a wheel chair due to an accident on vacation. The service in Toronto was poor and Ottawa no better. Southeast Asia could teach them lots. Flight originated in Manila on ANA which was cancelled due to a mechanical issue. We were put up overnight in the Savoy Hotel with dinner and breakfast. The airline staff and hotel staff were fantastic.
Air Canada
7.1
Good
10,943 reviews
Air Canada
7.1
Good
10,943 reviews
Check prices

Boarding

7.3

Comfort

7.1

Food

6.3

Crew

7.8

Entertainment

6.8

Overall

7.1

Reviews

1 / 20
8.0
Excellent

John,Apr 2026

YVR - YOW

Crew was very attentive and meals were good. My wife required a wheel chair due to an accident on vacation. The service in Toronto was poor and Ottawa no better. Southeast Asia could teach them lots. Flight originated in Manila on ANA which was cancelled due to a mechanical issue. We were put up overnight in the Savoy Hotel with dinner and breakfast. The airline staff and hotel staff were fantastic.

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?

    London (YXU), located 5.3 mi from the city center, is the airport you fly into when you book flights from London Heathrow to London. 1 airline have flights to London from London Heathrow on a regular basis. Booking flights from London Heathrow to London should not be difficult; the airport handles an average of 0 inbound flights from London Heathrow per day.

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

    For as low as £597, Air Canada can have you in London, Ontario from London Heathrow Airport in 14h. The distance from London Heathrow Airport to London, Ontario is about 3631 mi.

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

    Our cheapest airline available from London Heathrow Airport to London, Ontario is Air Canada. Our recent data shows that you can find tickets from as low as £489 on this airline. Air Canada is currently priced 24% below the average price you’ll pay for this route.

  • 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 holiday 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

Browse thousands of different options on Cheapflights for your next trip

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Top airline flying from Heathrow to London

Discover the top airline that operate flights from Heathrow to London. 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 858,174 searches. Data last updated 20 April 2026.
AirlineCheapestAverageFlexibilityOn-time
Air CanadaCheapest£489Average£622FlexibilityNo cancel feeOn-time67%
Search Air Canada flights

Fly with Cheapflights

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

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

Yes! Cheapflights helps users easily find flights from Heathrow to London with no change fees.

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

Yes, Cheapflights has a feature called Price Alert, which notifies users when flight prices change. Track prices for your flight to London from Heathrow today and book when prices fit your budget.

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