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Cheap flights from London Heathrow Airport to London, Ontario from £402

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
9 Jul — 16 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 9 June 2026.

Wed 1/707:25
LHR
-
YXU
2 stops19h 15m
Multiple Airlines
Tue 7/715:30
YXU
-
LHR
2 stops21h 20m
Multiple Airlines
Deal found 5/6£523
Mon 9/1109:00
LHR
-
YXU
2 stops17h 46m
Air Canada
Sat 21/1115:25
YXU
-
LHR
1 stop12h 05m
Air Canada
Deal found 7/6£524
Fri 18/906:00
LHR
-
YXU
2 stops16h 43m
Air Canada
Tue 22/918:20
YXU
-
LHR
1 stop10h 15m
Air Canada
Deal found 8/6£525
Wed 1/707:25
LHR
-
YXU
2 stops19h 15m
Lufthansa
Tue 7/715:30
YXU
-
LHR
1 stop10h 05m
Lufthansa
Deal found 5/6£527
Wed 1/709:30
LHR
-
YXU
2 stops13h 12m
Air Canada
Tue 7/715:30
YXU
-
LHR
1 stop10h 05m
Air Canada
Deal found 7/6£528
Thu 25/606:50
LHR
-
YXU
2 stops15h 42m
Air Canada
Sat 4/715:30
YXU
-
LHR
1 stop10h 05m
Air Canada
Deal found 6/6£533
Mon 7/911:05
LHR
-
YXU
2 stops32h 50m
Air Canada
Sun 13/918:20
YXU
-
LHR
2 stops21h 40m
Air Canada
Deal found 5/6£534
Mon 31/808:30
LHR
-
YXU
1 stop14h 15m
Air Canada
Sun 6/915:30
YXU
-
LHR
1 stop12h 05m
Air Canada
Deal found 5/6£536
Wed 1/708:30
LHR
-
YXU
1 stop11h 25m
Air Canada
Wed 8/715:30
YXU
-
LHR
2 stops13h 30m
Air Canada
Deal found 6/6£537

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 9 June 2026.

Round-trip from

£523

One-way from

£402

Popular in

December

Cheapest in

February

Average price

£775
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 (£362 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 8% potential price decrease (£41 potential savings vs. average return price).
Search Deals
Average for round-trip flights in June 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 9 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 return flight

LondonLondon

LHR - YXU

LHRYXU

London Heathrow

Mon 9/11

09:00-21:46

2 stops17h 46m

London

Sat 21/11

15:25-08:30

1 stop12h 05m

£524

LondonLondon

LHR - YXU

LHRYXU

London Heathrow

Fri 18/9

06:00-17:43

2 stops16h 43m

London

Tue 22/9

18:20-09:35

1 stop10h 15m

£525
Fastest return journey

LondonLondon

LHR - YXU

LHRYXU

London Heathrow

Wed 1/7

09:30-17:42

2 stops13h 12m

London

Tue 7/7

15:30-06:35

1 stop10h 05m

£528

LondonLondon

LHR - YXU

LHRYXU

London Heathrow

Sun 6/9

17:40-09:20

1 stop20h 40m

London

Sun 13/9

15:30-06:35

1 stop10h 05m

£535

LondonLondon

LHR - YXU

LHRYXU

London Heathrow

Sun 5/7

06:00-20:32

2 stops19h 32m

London

Sun 12/7

18:20-08:35

1 stop9h 15m

£621
Cheapest one-way

LondonLondon

LHR - YXU

LHRYXU

London Heathrow

Wed 8/7

15:50-13:50

3 stops51h 00m

£402

LondonLondon

LHR - YXU

LHRYXU

London Heathrow

Wed 8/7

12:40-09:17

2 stops25h 37m

£436

LondonLondon

LHR - YXU

LHRYXU

London Heathrow

Thu 2/7

09:30-21:40

2 stops17h 10m

£451
Fastest single journey

LondonLondon

LHR - YXU

LHRYXU

London Heathrow

Thu 2/7

08:30-14:55

1 stop11h 25m

£455

LondonLondon

LHR - YXU

LHRYXU

London Heathrow

Sun 5/7

08:30-20:32

1 stop17h 02m

£455

Flights are sorted by cheapest return flights first.

Deals found on 7/6

Showing 1-10 of 14 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 9 June 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
11,149 reviews
Check prices

Crew

7.8

Overall

7.1

Boarding

7.3

Entertainment

6.8

Food

6.3

Comfort

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
11,149 reviews
Air Canada
7.1
Good
11,149 reviews
Check prices

Crew

7.8

Overall

7.1

Boarding

7.3

Entertainment

6.8

Food

6.3

Comfort

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 £524, Air Canada can have you in London, Ontario from London Heathrow Airport in 17h 46m. 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 £542 on this airline. Air Canada is currently priced 23% 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 9 June 2026.
AirlineCheapestAverageFlexibilityOn-time
Air CanadaCheapest£542Average£662FlexibilityNo 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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