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Cheap flights from London Heathrow Airport to Ontario from C$ 435

LHR — YYZ
8 Oct — 15 Oct1
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

Fri 16/1012:40 p.m. -
1 stop10h 38m
Sun 25/104:40 p.m. -
1 stop11h 50m
Deal found 4/9C$ 694
Fri 16/1012:40 p.m. -
1 stop13h 00m
Sun 25/108:10 p.m. -
Nonstop7h 00m
Deal found 7/9C$ 695
Thu 22/108:05 p.m. -
1 stop23h 55m
Tue 27/105:40 p.m. -
2 stops16h 00m
Deal found 4/9C$ 697
Tue 20/108:05 p.m. -
1 stop23h 55m
Tue 27/105:40 p.m. -
2 stops16h 00m
Deal found 5/9C$ 698
Mon 19/106:00 a.m. -
2 stops18h 21m
Mon 26/107:50 p.m. -
2 stops16h 30m
Deal found 4/9C$ 699
Tue 20/109:30 a.m. -
1 stop11h 20m
Mon 2/113:35 p.m. -
1 stop9h 55m
Deal found 7/9C$ 701
Sat 26/129:00 a.m. -
1 stop14h 43m
Wed 6/17:10 p.m. -
Nonstop7h 00m
Deal found 7/9C$ 702
Thu 22/105:40 p.m. -
Nonstop7h 50m
Thu 29/106:15 a.m. -
1 stop10h 45m
Deal found 7/9C$ 704
Thu 24/129:00 a.m. -
1 stop14h 43m
Thu 7/17:10 p.m. -
Nonstop7h 00m
Deal found 7/9C$ 705
Thu 22/102:05 p.m. -
Nonstop7h 35m
Thu 29/103:00 p.m. -
1 stop14h 20m
Deal found 7/9C$ 706
Tue 20/1012:05 p.m. -
Nonstop7h 50m
Tue 27/106:15 a.m. -
1 stop10h 45m
Deal found 7/9C$ 708
Sat 12/91:50 p.m. -
1 stop30h 10m
Sat 26/96:40 p.m. -
Nonstop6h 50m
Deal found 5/9C$ 709

Find flight deals from Heathrow to Ontario

Round-trip from

C$ 694

One-way from

C$ 435

Popular in

August

Cheapest in

February

Average price

C$ 789

Good round-trip deal

C$ 839 or less

Good one-way deal

C$ 623 or less
Air Canada
  • Air Canada
  • 16/10-25/10
  • 2 total stops
  • 22h 28m total
  • London to Ontario
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21/9-31/12
  • 21/9-31/12
  • 3 total stops
  • 45h 30m total
  • London to Ontario
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Highest demand for flights based on searches. 10% potential increase in price (C$ 138 potential increase over avg. RT price).
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Cheapest flight prices on average. 2% potential price decrease (C$ 28 potential savings vs. average RT price).
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Average for round-trip flights in September 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

Sun 6/12

6:00 a.m.-9:15 p.m.

1 stop20h 15m

Toronto Pearson Intl

Wed 31/12

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

Nonstop0h 00m

C$ 487

LondonToronto

LHR London Heathrow - YYZ Toronto Pearson Intl

LHRYYZ

London Heathrow

Mon 12/10

6:40 p.m.-12:50 p.m.

1 stop23h 10m

Toronto Pearson Intl

Wed 31/12

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

Nonstop0h 00m

C$ 568

LondonToronto

LHR London Heathrow - YYZ Toronto Pearson Intl

LHRYYZ

London Heathrow

Fri 8/1

8:35 p.m.-6:15 p.m.

1 stop26h 40m

Toronto Pearson Intl

Wed 31/12

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

Nonstop0h 00m

C$ 572

LondonMontreal

LHR London Heathrow - YUL Montreal Pierre Elliott Trudeau Intl

LHRYUL

London Heathrow

Fri 18/9

8:50 p.m.-5:20 p.m.

1 stop25h 30m

Montreal Pierre Elliott Trudeau Intl

Wed 31/12

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

Nonstop0h 00m

C$ 576

LondonMontreal

LHR London Heathrow - YUL Montreal Pierre Elliott Trudeau Intl

LHRYUL

London Heathrow

Mon 14/9

8:50 p.m.-5:20 p.m.

1 stop25h 30m

Montreal Pierre Elliott Trudeau 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

Mon 14/9

7:30 a.m.-7:00 p.m.

2 stops16h 30m

Toronto Pearson Intl

Wed 31/12

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

Nonstop0h 00m

C$ 614

LondonToronto

LHR London Heathrow - YYZ Toronto Pearson Intl

LHRYYZ

London Heathrow

Fri 4/12

6:35 a.m.-9:37 p.m.

2 stops20h 02m

Toronto Pearson Intl

Wed 31/12

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

Nonstop0h 00m

C$ 614

LondonToronto

LHR London Heathrow - YYZ Toronto Pearson Intl

LHRYYZ

London Heathrow

Sun 8/11

7:30 a.m.-5:49 p.m.

2 stops15h 19m

Toronto Pearson Intl

Wed 31/12

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

Nonstop0h 00m

C$ 615

LondonToronto

LHR London Heathrow - YYZ Toronto Pearson Intl

LHRYYZ

London Heathrow

Mon 9/11

7:30 a.m.-11:26 p.m.

2 stops20h 56m

Toronto Pearson Intl

Wed 31/12

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

Nonstop0h 00m

C$ 615

LondonToronto

LHR London Heathrow - YTZ Toronto Island

LHRYTZ

London Heathrow

Sun 11/10

7:30 a.m.-6:57 p.m.

2 stops16h 27m

Toronto Island

Wed 31/12

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

Nonstop0h 00m

C$ 615

Flights are sorted by cheapest round-trip flights first.

Deals found on 2/9

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$ 774). Flying from London Heathrow Airport to Region of Ontario in August is currently the most expensive (average of C$ 1,209). 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.

Weekly flight availability from London Heathrow Airport to Region of Ontario

The most flights from LHR to CAON are scheduled on a Sunday (40 on average). You will have fewer flight options on Wednesday, which is when the least amount of flights are scheduled (19 on average).

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$ 752 and C$ 1,009 in October.
The cheapest round-trip price found within the last 5 days was C$ 704 on Air Canada (22 Oct-29 Oct).

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
7.4
Good
694 reviews
Check prices

Crew

8.1

Entertainment

7.5

Overall

7.4

Food

6.9

Boarding

7.7

Comfort

7.3

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
7.4
Good
694 reviews
Virgin Atlantic
7.4
Good
694 reviews
Check prices

Crew

8.1

Entertainment

7.5

Overall

7.4

Food

6.9

Boarding

7.7

Comfort

7.3

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
11,598 reviews
Virgin Atlantic
7.4
Good
694 reviews
Check prices

Crew

8.1

Entertainment

7.5

Overall

7.4

Food

6.9

Boarding

7.7

Comfort

7.3

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
6.9
Okay
741 reviews
Virgin Atlantic
7.4
Good
694 reviews
Check prices

Crew

8.1

Entertainment

7.5

Overall

7.4

Food

6.9

Boarding

7.7

Comfort

7.3

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
8,216 reviews
Virgin Atlantic
7.4
Good
694 reviews
Check prices

Crew

8.1

Entertainment

7.5

Overall

7.4

Food

6.9

Boarding

7.7

Comfort

7.3

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
8,211 reviews
Virgin Atlantic
7.4
Good
694 reviews
Check prices

Crew

8.1

Entertainment

7.5

Overall

7.4

Food

6.9

Boarding

7.7

Comfort

7.3

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?

    Lufthansa, British Airways, and United Airlines can get you from London Heathrow Airport to Region of Ontario in just under 8h. Your travel time can differ by up to 6h 47m. 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$ 410 on Aer Lingus. Other airlines that offer cheap prices include TAP AIR PORTUGAL from C$ 426 and KLM from C$ 445 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: Singapore Airlines (91%), MEA (90%), SriLankan Airlines (86%).

  • 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$ 2,453, our data shows the cheapest flight currently is C$ 556. When looking at the most popular route, (London Heathrow - Toronto Pearson Intl), you can expect to pay C$ 557 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$ 774). Flying from London Heathrow Airport to Region of Ontario in August is currently the most expensive (average of C$ 1,209). 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
Aer LingusCheapestC$ 440AverageC$ 717FlexibilityNo cancel feeOn-timeN/A
Search Aer Lingus flights
IcelandairCheapestC$ 648AverageC$ 698FlexibilityNo cancel feeOn-time76%
Search Icelandair flights
Air CanadaCheapestC$ 661AverageC$ 989FlexibilityNo cancel feeOn-time67%
Search Air Canada flights
KLMCheapestC$ 673AverageC$ 1,071FlexibilityNo cancel feeOn-time75%
Search KLM flights
British AirwaysCheapestC$ 694AverageC$ 1,070FlexibilityNo cancel feeOn-time70%
Search British Airways flights
LufthansaCheapestC$ 698AverageC$ 983FlexibilityNo cancel feeOn-time76%
Search Lufthansa flights
Virgin AtlanticCheapestC$ 740AverageC$ 1,100FlexibilityNo 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.

Can Cheapflights notify me if prices for flights from Heathrow to Ontario become cheaper?

Yes, and it’s super simple to set up. Click the bell icon next to the flight deals above and provide a valid email address to enable Price Alerts. That’s it!

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