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Cheap flights from London Heathrow Airport to London, Ontario from £357

LHR — YXU
21 Oct — 28 Oct1
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

Wed 4/1109:00 -
2 stops17h 57m
Wed 11/1109:15 -
1 stop18h 15m
Deal found 20/9£424
Mon 2/1109:00 -
2 stops15h 52m
Mon 9/1109:15 -
1 stop18h 15m
Deal found 18/9£428
Sun 1/1120:15 -
2 stops28h 37m
Sun 8/1109:15 -
1 stop18h 15m
Deal found 17/9£434
Thu 5/1109:00 -
2 stops17h 57m
Thu 12/1115:25 -
1 stop14h 55m
Deal found 21/9£442
Tue 3/1109:30 -
2 stops15h 22m
Tue 10/1115:25 -
1 stop10h 05m
Deal found 19/9£445

Find flight deals from Heathrow to London

Round-trip from

£424

One-way from

£357
Air Canada
  • Air Canada
  • 4/11-11/11
  • 3 total stops
  • 36h 12m total
  • London to London
Search Deals
19/10-31/12
  • 19/10-31/12
  • 2 total stops
  • 18h 40m total
  • London to London
Search Deals

Cheapflights Fare Finder

 
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

Mon 2/11

09:00-08:37

2 stops28h 37m

London

Wed 31/12

00:00-06:00

Nonstop0h 00m

£378

LondonLondon

LHR London Heathrow - YXU London

LHRYXU

London Heathrow

Tue 3/11

19:25-21:57

2 stops31h 32m

London

Wed 31/12

00:00-06:00

Nonstop0h 00m

£381
Fastest return journey

LondonLondon

LHR London Heathrow - YXU London

LHRYXU

London Heathrow

Mon 19/10

08:30-19:40

1 stop16h 10m

London

Wed 31/12

00:00-06:00

Nonstop0h 00m

£387

LondonLondon

LHR London Heathrow - YXU London

LHRYXU

London Heathrow

Mon 2/11

18:40-19:52

2 stops30h 12m

London

Wed 31/12

00:00-06:00

Nonstop0h 00m

£387

LondonLondon

LHR London Heathrow - YXU London

LHRYXU

London Heathrow

Thu 5/11

15:00-14:47

1 stop28h 47m

London

Wed 31/12

00:00-06:00

Nonstop0h 00m

£402

LondonLondon

LHR London Heathrow - YXU London

LHRYXU

London Heathrow

Tue 3/11

18:00-14:47

1 stop25h 47m

London

Wed 31/12

00:00-06:00

Nonstop0h 00m

£404

LondonLondon

LHR London Heathrow - YXU London

LHRYXU

London Heathrow

Thu 5/11

06:35-21:57

3 stops20h 22m

London

Wed 31/12

00:00-06:00

Nonstop0h 00m

£412

LondonLondon

LHR London Heathrow - YXU London

LHRYXU

London Heathrow

Mon 2/11

19:15-19:52

3 stops29h 37m

London

Wed 31/12

00:00-06:00

Nonstop0h 00m

£420

LondonLondon

LHR London Heathrow - YXU London

LHRYXU

London Heathrow

Sun 1/11

20:15-19:52

2 stops28h 37m

London

Sun 8/11

09:15-08:30

1 stop18h 15m

£434

LondonLondon

LHR London Heathrow - YXU London

LHRYXU

London Heathrow

Tue 3/11

09:30-19:52

2 stops15h 22m

London

Tue 10/11

15:25-13:00

2 stops16h 35m

£442

Flights are sorted by cheapest return flights first.

Deals found on 18/9

Showing 1-10 of 19 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

Reviews of airlines servicing London

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
11,658 reviews
Check prices

Crew

7.8

Comfort

7.1

Entertainment

6.8

Overall

7.1

Food

6.3

Boarding

7.3

Reviews

1 / 20
2.0
Mediocre

Sylvia,Aug 2026

YLW - YYZ

The fires impacted our trip. We sat in the plane for an hour with no air conditioning. We were a total of 5-hour delay but missed our connection. The staff tried to keep us aware of important information
Air Canada
7.1
Good
11,658 reviews
Air Canada
7.1
Good
11,658 reviews
Check prices

Crew

7.8

Comfort

7.1

Entertainment

6.8

Overall

7.1

Food

6.3

Boarding

7.3

Reviews

1 / 20
2.0
Mediocre

Sylvia,Aug 2026

YLW - YYZ

The fires impacted our trip. We sat in the plane for an hour with no air conditioning. We were a total of 5-hour delay but missed our connection. The staff tried to keep us aware of important information

Related info for your journey

  • 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 £434, Lufthansa can have you in London, Ontario from London Heathrow Airport in 28h 37m. 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 £593 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

Top airline flying from Heathrow to London

AirlineCheapestAverageFlexibilityOn-time
Air CanadaCheapest£593Average£758FlexibilityNo cancel feeOn-time67%
Search Air Canada flights

Fly with Cheapflights

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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