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Cheap flights from London Heathrow Airport to London, Ontario from £383

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 6/4. Fares are subject to change and may not be available on all flights or dates of travel.
LHR — YXU
24 Mar — 31 Mar1
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 22 February 2026.

Thu 12/319:25
LHR
-
YXU
2 stops25h 40m
Air Canada
Wed 18/317:40
YXU
-
LHR
1 stop10h 50m
Air Canada
Deal found 22/2£546
Wed 8/407:25
LHR
-
YXU
2 stops14h 38m
Lufthansa
Wed 15/417:40
YXU
-
LHR
1 stop10h 55m
Lufthansa
Deal found 22/2£556
Wed 18/318:00
LHR
-
YXU
1 stop18h 46m
Air Canada
Wed 25/317:40
YXU
-
LHR
1 stop10h 50m
Air Canada
Deal found 18/2£567
Mon 9/309:30
LHR
-
YXU
2 stops15h 51m
Lufthansa
Mon 16/317:40
YXU
-
LHR
1 stop10h 50m
Lufthansa
Deal found 19/2£573
Tue 7/407:25
LHR
-
YXU
2 stops14h 38m
Lufthansa
Tue 14/417:40
YXU
-
LHR
1 stop13h 10m
Lufthansa
Deal found 21/2£577

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 22 February 2026.

Round-trip from

£559

One-way from

£383

Popular in

December

Cheapest in

September

Average price

£648
Air Canada
  • Air Canada
  • 12/3-18/3
  • 3 total stops
  • 31h 55m total
  • London to London
Search Deals
6/4
  • 6/4
  • 3 total stops
  • 58h 33m total
  • London to London
Search Deals
Highest demand for flights based on searches. 45% potential increase in price (£393 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 10% potential price decrease (£44 potential savings vs. average return price).
Search Deals
Average for round-trip flights in February 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 22 February 2026.
Use the filters below to find and compare flights from London Heathrow Airport to London that are best for you.

Fly from

Heathrow

Fly to

London

Route

Depart

Return

Price

LondonLondon

LHR - YXU

LHRYXU

London Heathrow

Thu 12/3

06:00-17:05

2 stops15h 05m

London

Wed 18/3

09:40-06:30

1 stop16h 50m

£559

LondonLondon

LHR - YXU

LHRYXU

London Heathrow

Wed 18/3

18:00-08:46

1 stop18h 46m

London

Wed 25/3

17:40-08:30

1 stop10h 50m

£567

LondonLondon

LHR - YXU

LHRYXU

London Heathrow

Mon 9/3

09:30-21:21

2 stops15h 51m

London

Mon 16/3

17:40-08:30

1 stop10h 50m

£573

LondonLondon

LHR - YXU

LHRYXU

London Heathrow

Wed 8/4

17:15-21:18

2 stops33h 03m

London

Wed 15/4

09:25-08:35

2 stops18h 10m

£573

LondonLondon

LHR - YXU

LHRYXU

London Heathrow

Sun 5/4

07:30-17:03

2 stops38h 33m

London

Sun 12/4

09:25-21:00

2 stops54h 35m

£594

LondonLondon

LHR - YXU

LHRYXU

London Heathrow

Fri 10/4

12:40-08:43

2 stops25h 03m

London

Sun 19/4

17:40-21:00

2 stops22h 20m

£595

LondonLondon

LHR - YXU

LHRYXU

London Heathrow

Mon 6/4

13:30-19:03

3 stops58h 33m

£383

LondonLondon

LHR - YXU

LHRYXU

London Heathrow

Sat 4/4

16:30-19:03

2 stops55h 33m

£389

LondonLondon

LHR - YXU

LHRYXU

London Heathrow

Sun 5/4

22:15-06:35

3 stops37h 20m

£449

LondonLondon

LHR - YXU

LHRYXU

London Heathrow

Wed 8/4

14:10-06:35

1 stop21h 25m

£456

Flights are sorted by cheapest return flights first.

Deals found on 19/2

Showing 1-10 of 13 results
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

What is the cheapest month to book a flight from London Heathrow Airport to London, Ontario?

Currently, January is the cheapest month in which you can book a flight from London Heathrow Airport to London, Ontario (average of £314). Flying from London Heathrow Airport to London, Ontario in December is currently the most expensive (average of £366). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

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 22 February 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
10,738 reviews
Check prices

Boarding

7.3

Crew

7.8

Entertainment

6.8

Food

6.3

Comfort

7.1

Overall

7.1

Reviews

1 / 20
2.0
Mediocre

Anonymous,Feb 2026

YXE - YYZ

We were over three hours delayed leaving Saskatoon and missed our connection to Montreal. We were then rerouted all the way to Zurich. We were over seven hours late getting to our final destination. Then our luggage was lost for lost for three days. All three flights were delayed and our trip was definitely impacted.
Air Canada
7.1
Good
10,738 reviews
Air Canada
7.1
Good
10,738 reviews
Check prices

Boarding

7.3

Crew

7.8

Entertainment

6.8

Food

6.3

Comfort

7.1

Overall

7.1

Reviews

1 / 20
2.0
Mediocre

Anonymous,Feb 2026

YXE - YYZ

We were over three hours delayed leaving Saskatoon and missed our connection to Montreal. We were then rerouted all the way to Zurich. We were over seven hours late getting to our final destination. Then our luggage was lost for lost for three days. All three flights were delayed and our trip was definitely impacted.

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 £559, Air Canada can have you in London, Ontario from London Heathrow Airport in 15h 05m. The distance from London Heathrow Airport to London, Ontario is about 3631 mi. Both multi-stop and direct flights can be found to your destination and back.

  • 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 £486 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.

  • What is the cheapest month to book a flight from London Heathrow Airport to London, Ontario?

    Currently, January is the cheapest month in which you can book a flight from London Heathrow Airport to London, Ontario (average of £314). Flying from London Heathrow Airport to London, Ontario in December is currently the most expensive (average of £366). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

See more FAQs

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

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 22 February 2026.
AirlineCheapestAverageFlexibilityOn-time
Air CanadaCheapest£486Average£616FlexibilityNo 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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