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Cheap flights from London Heathrow Airport to Ontario from C$ 493

LHR — YYZ
21 Nov — 28 Nov1
1 adult
1 adult, Economy, 0 bags

Cheap flight deals from Heathrow to Ontario

Enter your travel dates to find the best prices.

Cheapest flights from Heathrow to Ontario

Wed 2/126:00 a.m. -
1 stop15h 15m
Tue 8/1211:00 p.m. -
Nonstop7h 20m
Deal found 17/10C$ 666
Fri 6/116:35 a.m. -
1 stop13h 20m
Thu 12/118:25 p.m. -
1 stop14h 55m
Deal found 18/10C$ 670
Thu 3/129:30 a.m. -
1 stop11h 45m
Wed 9/1211:00 p.m. -
Nonstop7h 20m
Deal found 17/10C$ 673
Fri 4/128:35 p.m. -
1 stop26h 40m
Sat 12/127:40 p.m. -
1 stop18h 50m
Deal found 19/10C$ 676
Fri 20/116:30 a.m. -
1 stop17h 45m
Mon 11/19:45 p.m. -
Nonstop7h 05m
Deal found 21/10C$ 677
Fri 6/116:35 a.m. -
1 stop13h 20m
Thu 12/1111:00 p.m. -
Nonstop7h 20m
Deal found 18/10C$ 679
Tue 10/118:35 p.m. -
1 stop26h 40m
Tue 17/117:40 p.m. -
1 stop10h 10m
Deal found 21/10C$ 680
Wed 11/1112:15 p.m. -
1 stop11h 00m
Thu 10/127:40 p.m. -
1 stop10h 10m
Deal found 21/10C$ 682
Thu 26/1112:15 p.m. -
1 stop11h 00m
Sun 29/117:40 p.m. -
1 stop10h 10m
Deal found 20/10C$ 683
Thu 3/1212:15 p.m. -
1 stop11h 00m
Wed 9/127:40 p.m. -
1 stop18h 50m
Deal found 19/10C$ 684
Thu 26/1112:15 p.m. -
1 stop11h 00m
Tue 1/127:40 p.m. -
1 stop18h 50m
Deal found 21/10C$ 686
Thu 26/118:35 p.m. -
1 stop26h 40m
Thu 10/127:40 p.m. -
1 stop18h 50m
Deal found 21/10C$ 687

Find flight deals from Heathrow to Ontario

Round-trip from

C$ 666

One-way from

C$ 493

Popular in

August

Cheapest in

February

Average price

C$ 845

Good round-trip deal

C$ 712 or less

Good one-way deal

C$ 616 or less
Lufthansa
  • Lufthansa
  • 2/12-8/12
  • 1 total stop
  • 22h 35m total
  • London to Ontario
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Icelandair
  • Icelandair
  • 1/2-31/12
  • 1 total stop
  • 11h 00m total
  • London to Ontario
Search Deals
Highest demand for flights based on searches. 10% potential increase in price (C$ 148 potential increase over avg. RT price).
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Cheapest flight prices on average. 2% potential price decrease (C$ 29 potential savings vs. average RT price).
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Average for round-trip flights in October 2026
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Price to beat on a round-trip flight from London Heathrow to Ontario.
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Price to beat on a one-way flight from London Heathrow to Ontario.
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Cheapflights Fare Finder

 
Use the filters below to find and compare flights from London Heathrow Airport to Ontario that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

LondonToronto

LHR London Heathrow - YYZ Toronto Pearson Intl

LHRYYZ

London Heathrow

Fri 15/1

8:05 p.m.-4:15 p.m.

1 stop25h 10m

Toronto Pearson Intl

Wed 31/12

12:00 a.m.-6:00 a.m.

Nonstop0h 00m

C$ 586

LondonToronto

LHR London Heathrow - YYZ Toronto Pearson Intl

LHRYYZ

London Heathrow

Sat 5/12

6:00 p.m.-9:05 p.m.

Nonstop8h 05m

Toronto Pearson Intl

Wed 31/12

12:00 a.m.-6:00 a.m.

Nonstop0h 00m

C$ 625

LondonToronto

LHR London Heathrow - YYZ Toronto Pearson Intl

LHRYYZ

London Heathrow

Sat 16/1

12:05 p.m.-9:14 a.m.

2 stops26h 09m

Toronto Pearson Intl

Wed 31/12

12:00 a.m.-6:00 a.m.

Nonstop0h 00m

C$ 628

LondonToronto

LHR London Heathrow - YYZ Toronto Pearson Intl

LHRYYZ

London Heathrow

Sun 28/2

7:30 a.m.-7:19 p.m.

2 stops16h 49m

Toronto Pearson Intl

Wed 31/12

12:00 a.m.-6:00 a.m.

Nonstop0h 00m

C$ 637

LondonToronto

LHR London Heathrow - YYZ Toronto Pearson Intl

LHRYYZ

London Heathrow

Fri 26/2

7:30 a.m.-9:29 p.m.

2 stops18h 59m

Toronto Pearson Intl

Wed 31/12

12:00 a.m.-6:00 a.m.

Nonstop0h 00m

C$ 637

LondonToronto

LHR London Heathrow - YYZ Toronto Pearson Intl

LHRYYZ

London Heathrow

Sat 27/2

7:30 a.m.-7:19 p.m.

2 stops16h 49m

Toronto Pearson Intl

Wed 31/12

12:00 a.m.-6:00 a.m.

Nonstop0h 00m

C$ 638

LondonToronto

LHR London Heathrow - YYZ Toronto Pearson Intl

LHRYYZ

London Heathrow

Fri 5/3

7:30 a.m.-10:20 p.m.

2 stops19h 50m

Toronto Pearson Intl

Wed 31/12

12:00 a.m.-6:00 a.m.

Nonstop0h 00m

C$ 638

LondonToronto

LHR London Heathrow - YYZ Toronto Pearson Intl

LHRYYZ

London Heathrow

Sun 31/1

7:30 a.m.-7:59 p.m.

2 stops17h 29m

Toronto Pearson Intl

Wed 31/12

12:00 a.m.-6:00 a.m.

Nonstop0h 00m

C$ 638

LondonToronto

LHR London Heathrow - YTZ Toronto Island

LHRYTZ

London Heathrow

Sat 5/12

11:05 a.m.-10:07 a.m.

2 stops52h 02m

Toronto Island

Wed 31/12

12:00 a.m.-6:00 a.m.

Nonstop0h 00m

C$ 641

LondonToronto

LHR London Heathrow - YTZ Toronto Island

LHRYTZ

London Heathrow

Mon 18/1

9:00 a.m.-6:19 p.m.

1 stop14h 19m

Toronto Island

Wed 31/12

12:00 a.m.-6:00 a.m.

Nonstop0h 00m

C$ 648

Flights are sorted by cheapest round-trip flights first.

Deals found on 17/10

Showing 1-10 of 60 resultsSorted by cheapest first
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Best time to book a flight from Heathrow to Ontario

Have a flexible travel schedule? Discover the best time to fly to Ontario from Heathrow with our price prediction graph.
Estimated round-trip price

Cheapflights Insights

Everything you need to know about your flight from London Heathrow Airport to Ontario

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

Currently, February is the cheapest month in which you can book a flight from London Heathrow Airport to Region of Ontario (average of C$ 797). Flying from London Heathrow Airport to Region of Ontario in August is currently the most expensive (average of C$ 1,230). 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.

What is the cheapest time of day to fly from LHR to ON?

When flying from London Heathrow Airport to Region of Ontario, the time of day you decide to fly out makes little to no difference towards the overall price you’ll pay on tickets.

How much does it cost to fly round-trip from London Heathrow Airport to Region of Ontario?

Airfare is below average for this route at the moment.
London Heathrow Airport to Region of Ontario flights typically cost between C$ 750 and C$ 1,022 in December.
The cheapest round-trip price found within the last 5 days was C$ 666 on Multiple Airlines (2 Dec-8 Dec).

How far ahead should I book a flight from London Heathrow Airport to Region of Ontario?

The price you pay for your flight from London Heathrow Airport to Region of Ontario may vary depending on when you book. For the best chance of a lower fare, look to book 84 days in advance of your trip. Fares are likely to increase a fortnight or so before your departure date.

Reviews of airlines servicing Ontario

Read reviews from past customers who have flown Virgin Atlantic,Air Canada, andIcelandair from London Heathrow Airport to Ontario. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
Virgin Atlantic
7.5
Good
697 reviews
Check prices

Food

6.9

Comfort

7.3

Entertainment

7.5

Crew

8.1

Boarding

7.7

Overall

7.5

Reviews

1 / 20
10.0
Excellent

Edwin,May 2026

LHR - LAX

First time flying with Virgin. It was everything I hoped it would be.
Virgin Atlantic
7.5
Good
697 reviews
Virgin Atlantic
7.5
Good
697 reviews
Check prices

Food

6.9

Comfort

7.3

Entertainment

7.5

Crew

8.1

Boarding

7.7

Overall

7.5

Reviews

1 / 20
10.0
Excellent

Edwin,May 2026

LHR - LAX

First time flying with Virgin. It was everything I hoped it would be.
Air Canada
7.1
Good
11,790 reviews
Virgin Atlantic
7.5
Good
697 reviews
Check prices

Food

6.9

Comfort

7.3

Entertainment

7.5

Crew

8.1

Boarding

7.7

Overall

7.5

Reviews

1 / 20
10.0
Excellent

Edwin,May 2026

LHR - LAX

First time flying with Virgin. It was everything I hoped it would be.
Icelandair
7.0
Good
762 reviews
Virgin Atlantic
7.5
Good
697 reviews
Check prices

Food

6.9

Comfort

7.3

Entertainment

7.5

Crew

8.1

Boarding

7.7

Overall

7.5

Reviews

1 / 20
10.0
Excellent

Edwin,May 2026

LHR - LAX

First time flying with Virgin. It was everything I hoped it would be.
Lufthansa
6.8
Okay
8,285 reviews
Virgin Atlantic
7.5
Good
697 reviews
Check prices

Food

6.9

Comfort

7.3

Entertainment

7.5

Crew

8.1

Boarding

7.7

Overall

7.5

Reviews

1 / 20
10.0
Excellent

Edwin,May 2026

LHR - LAX

First time flying with Virgin. It was everything I hoped it would be.
British Airways
6.7
Okay
8,272 reviews
Virgin Atlantic
7.5
Good
697 reviews
Check prices

Food

6.9

Comfort

7.3

Entertainment

7.5

Crew

8.1

Boarding

7.7

Overall

7.5

Reviews

1 / 20
10.0
Excellent

Edwin,May 2026

LHR - LAX

First time flying with Virgin. It was everything I hoped it would be.

Related info for your journey

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

    Icelandair, Delta, and British Airways can get you from London Heathrow Airport to Region of Ontario in just under 7h 55m. Your travel time can differ by up to 18h 45m. The distance between London Heathrow Airport and Region of Ontario is about 5702 km. Both multi-stop and direct flights can be found to your destination and back.

  • What are the cheapest airlines to fly from London Heathrow Airport to Region of Ontario one-way?

    One-way options have recently been found by users for as low as C$ 414 on SWISS. Other airlines that offer cheap prices include Aer Lingus from C$ 423 and TAP AIR PORTUGAL from C$ 434 one-way.

  • What are the most popular routes from London Heathrow Airport to Region of Ontario?

    The most popular route from London Heathrow Airport to Region of Ontario is London Heathrow - Toronto Pearson Intl. You may also consider London Heathrow - Toronto Island or London Heathrow - Montreal Pierre Elliott Trudeau Intl.

  • What are the most reliable airlines from London Heathrow Airport to Region of Ontario?

    Looking for the most reliable airlines to get you to your destination on time? Our data shows these are most likely to get you from London Heathrow Airport to Region of Ontario on time: MEA (88%), Singapore Airlines (86%), Egyptair (85%).

  • What are the cheapest flights from London Heathrow Airport to Region of Ontario?

    While on average a flight from London Heathrow Airport to Region of Ontario is generally C$ 734, our data shows the cheapest flight currently is C$ 470. When looking at the most popular route, (London Heathrow - Toronto Pearson Intl), you can expect to pay C$ 611 for that flight.

  • Can I find deals for flights from Heathrow to Ontario that include hotel bookings?

    Yes. In addition to deals on Heathrow to Ontario flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Heathrow to Ontario?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Heathrow to Ontario.

  • Can I find deals for business class flights from Heathrow to Ontario?

    Yes. Cheapflights offers flight deals from Heathrow to Ontario 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 Region of Ontario?

    Currently, February is the cheapest month in which you can book a flight from London Heathrow Airport to Region of Ontario (average of C$ 797). Flying from London Heathrow Airport to Region of Ontario in August is currently the most expensive (average of C$ 1,230). 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

Top 7 airlines flying from Heathrow to Ontario

AirlineCheapestAverageFlexibilityOn-time
IcelandairCheapestC$ 659AverageC$ 704FlexibilityNo cancel feeOn-time76%
Search Icelandair flights
Aer LingusCheapestC$ 662AverageC$ 1,090FlexibilityNo cancel feeOn-timeN/A
Search Aer Lingus flights
KLMCheapestC$ 685AverageC$ 873FlexibilityNo cancel feeOn-time75%
Search KLM flights
Air CanadaCheapestC$ 689AverageC$ 997FlexibilityNo cancel feeOn-time67%
Search Air Canada flights
British AirwaysCheapestC$ 692AverageC$ 991FlexibilityNo cancel feeOn-time70%
Search British Airways flights
LufthansaCheapestC$ 710AverageC$ 997FlexibilityNo cancel feeOn-time76%
Search Lufthansa flights
Virgin AtlanticCheapestC$ 886AverageC$ 1,119FlexibilityNo cancel feeOn-time72%
Search Virgin Atlantic flights

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

Cheapflights goes through 900+ travel sites to look for the best flight deals for flights from Heathrow to Ontario. Too many options? Cheapflights also provides filters for things like airlines, price ranges, and number of stops to help you make a decision easily.

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

It’s simple! Cheapflights, which is free to use for everyone, saves millions of users time and money every year by helping them find the cheapest and most suitable flights from Heathrow to Ontario.

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

Yes, we can. To see specific flights from Heathrow to Ontario with no change fees, users can toggle flexible booking options after using the search form above to find flights.

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