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Cheap flights from London Heathrow Airport to London, Ontario from £354

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 2/9. Fares are subject to change and may not be available on all flights or dates of travel.
LHR — YXU
7 Sep — 14 Sep1
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 8 August 2026.

Thu 17/906:00 -
2 stops20h 40m
Thu 24/918:20 -
1 stop9h 15m
Deal found 3/8£478
Tue 15/906:50 -
2 stops13h 00m
Sat 26/910:05 -
2 stops15h 25m
Deal found 4/8£485
Tue 15/906:50 -
2 stops13h 00m
Sat 26/918:20 -
1 stop10h 15m
Deal found 4/8£487
Wed 16/917:15 -
2 stops33h 25m
Wed 23/910:05 -
2 stops17h 30m
Deal found 4/8£491
Mon 21/906:50 -
2 stops15h 53m
Mon 28/918:20 -
1 stop12h 30m
Deal found 7/8£494
Wed 9/917:15 -
2 stops33h 25m
Wed 16/905:40 -
2 stops21h 55m
Deal found 3/8£496
Mon 21/906:50 -
2 stops15h 53m
Mon 28/915:30 -
2 stops16h 30m
Deal found 7/8£498

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 8 August 2026.

Round-trip from

£478

One-way from

£354

Popular in

August

Cheapest in

January

Average price

£851
Air Canada
  • Air Canada
  • 17/9-24/9
  • 3 total stops
  • 29h 55m total
  • London to London
Search Deals
2/9
  • 2/9
  • 3 total stops
  • 46h 50m total
  • London to London
Search Deals
Highest demand for flights based on searches. 7% potential increase in price (£39 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 3% potential price decrease (£16 potential savings vs. average return price).
Search Deals
Average for round-trip flights in August 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 8 August 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 London Heathrow - YXU London

LHRYXU

London Heathrow

Sat 19/9

06:55-17:43

2 stops15h 48m

London

Sat 26/9

10:05-06:35

1 stop15h 30m

£497

LondonLondon

LHR London Heathrow - YXU London

LHRYXU

London Heathrow

Wed 16/9

17:15-21:40

2 stops33h 25m

London

Wed 23/9

18:20-09:35

1 stop10h 15m

£504

LondonLondon

LHR London Heathrow - YXU London

LHRYXU

London Heathrow

Sat 19/9

06:50-14:50

2 stops13h 00m

London

Sat 26/9

05:40-06:35

1 stop19h 55m

£505

LondonLondon

LHR London Heathrow - YXU London

LHRYXU

London Heathrow

Thu 3/9

06:50-21:40

2 stops19h 50m

London

Wed 9/9

10:05-08:35

2 stops17h 30m

£505

LondonLondon

LHR London Heathrow - YXU London

LHRYXU

London Heathrow

Thu 3/9

06:50-14:50

2 stops13h 00m

London

Thu 10/9

10:05-06:30

2 stops15h 25m

£506

LondonLondon

LHR London Heathrow - YXU London

LHRYXU

London Heathrow

Thu 1/10

06:50-14:55

2 stops13h 05m

London

Mon 5/10

15:30-16:25

2 stops19h 55m

£510

LondonLondon

LHR London Heathrow - YXU London

LHRYXU

London Heathrow

Mon 14/9

06:50-14:50

2 stops13h 00m

London

Mon 21/9

15:30-10:00

2 stops13h 30m

£514

LondonLondon

LHR London Heathrow - YXU London

LHRYXU

London Heathrow

Fri 18/9

17:40-09:20

1 stop20h 40m

London

Fri 25/9

18:20-09:35

1 stop10h 15m

£514
Fastest return journey

LondonLondon

LHR London Heathrow - YXU London

LHRYXU

London Heathrow

Sun 20/9

08:30-14:50

1 stop11h 20m

London

Sun 27/9

18:20-09:35

1 stop10h 15m

£514
Cheapest one-way

LondonLondon

LHR London Heathrow - YXU London

LHRYXU

London Heathrow

Wed 2/9

20:00-13:50

3 stops46h 50m

£354

Flights are sorted by cheapest return flights first.

Deals found on 3/8

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 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.

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 8 August 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
11,450 reviews
Check prices

Crew

7.8

Overall

7.1

Comfort

7.1

Entertainment

6.8

Food

6.3

Boarding

7.3

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
11,450 reviews
Air Canada
7.1
Good
11,450 reviews
Check prices

Crew

7.8

Overall

7.1

Comfort

7.1

Entertainment

6.8

Food

6.3

Boarding

7.3

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 £504, Air Canada can have you in London, Ontario from London Heathrow Airport in 33h 25m. 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 £504 on this airline.

  • 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 8 August 2026.
AirlineCheapestAverageFlexibilityOn-time
Air CanadaCheapest£504Average£657FlexibilityNo cancel feeOn-time67%
Search Air Canada flights

Fly with Cheapflights

Find the best flight deals on Cheapflights, where travellers can enjoy low prices and a wide availability of flights to their desired destinations.

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

900+ travel sites are searched through when a user searches for a flight using Cheapflights. From the search interface, users can use filters to choose airlines, airports, flight times, cabin classes and more to their preference. Book your flight to London from Heathrow today with Cheapflights!

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

Millions of users choose and trust Cheapflights to book the best flight deals from Heathrow to London for free. We help you search and compare prices from hundreds of airlines for the right flight just for you.

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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