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Cheap flights from London Heathrow Airport to Ontario from C$ 489

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 9/9. Fares are subject to change and may not be available on all flights or dates of travel.
LHR — YYZ
24 Aug — 31 Aug1
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
Explore the most affordable flight options available from Heathrow to Ontario. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 25 July 2026.

Mon 14/96:55 a.m.
LHR
-
YYZ
1 stop13h 00m
Lufthansa
Mon 26/1011:55 p.m.
YYZ
-
LHR
Nonstop7h 25m
Lufthansa
Deal found 25/7C$ 759
Wed 2/91:30 p.m.
LHR
-
YUL
1 stop10h 55m
Lufthansa
Sun 13/910:10 p.m.
YUL
-
LHR
Nonstop6h 50m
Lufthansa
Deal found 24/7C$ 759
Fri 11/97:25 a.m.
LHR
-
YYZ
1 stop12h 30m
Lufthansa
Mon 14/98:15 p.m.
YYZ
-
LHR
Nonstop7h 20m
Lufthansa
Deal found 24/7C$ 761
Fri 4/98:40 a.m.
LHR
-
YUL
1 stop11h 20m
Multiple Airlines
Fri 18/96:40 p.m.
YUL
-
LHR
Nonstop6h 50m
Multiple Airlines
Deal found 22/7C$ 761
Mon 7/99:30 a.m.
LHR
-
YTZ
1 stop13h 50m
Air Canada
Mon 14/910:20 a.m.
YTZ
-
LHR
1 stop15h 10m
Air Canada
Deal found 24/7C$ 761
Wed 9/97:25 a.m.
LHR
-
YYZ
1 stop12h 30m
Lufthansa
Tue 22/911:50 p.m.
YYZ
-
LHR
Nonstop7h 00m
Lufthansa
Deal found 23/7C$ 762
Thu 27/82:05 p.m.
LHR
-
YUL
Nonstop7h 35m
Air Canada
Sat 5/99:00 a.m.
YUL
-
LHR
1 stop31h 00m
Air Canada
Deal found 21/7C$ 762
Fri 28/87:40 a.m.
LHR
-
YYZ
1 stop13h 10m
British Airways
Sun 13/910:15 p.m.
YYZ
-
LHR
Nonstop7h 15m
British Airways
Deal found 24/7C$ 763
Thu 27/86:50 a.m.
LHR
-
YUL
2 stops13h 32m
Air Canada
Wed 2/96:40 p.m.
YUL
-
LHR
Nonstop6h 50m
Air Canada
Deal found 21/7C$ 763
Fri 28/88:55 a.m.
LHR
-
YTZ
2 stops13h 56m
Multiple Airlines
Fri 4/98:30 p.m.
YTZ
-
LHR
1 stop29h 00m
Multiple Airlines
Deal found 24/7C$ 763
Thu 3/97:40 a.m.
LHR
-
YYZ
1 stop13h 10m
British Airways
Wed 23/96:05 p.m.
YYZ
-
LHR
Nonstop7h 10m
British Airways
Deal found 22/7C$ 765
Fri 4/96:00 a.m.
LHR
-
YUL
2 stops15h 00m
Air Canada
Fri 18/94:40 p.m.
YUL
-
LHR
1 stop11h 55m
Air Canada
Deal found 22/7C$ 765

Find flight deals from Heathrow to Ontario

Keep the following information in mind while searching for Heathrow to Ontario flight deals. Data was last updated 25 July 2026.

Round-trip from

C$ 759

One-way from

C$ 489

Popular in

August

Cheapest in

February

Average price

C$ 1,086

Good round-trip deal

C$ 775 or less

Good one-way deal

C$ 619 or less
Lufthansa
  • Lufthansa
  • 11/9-20/9
  • 1 total stop
  • 19h 30m total
  • London to Ontario
Search Deals
9/9
  • 9/9
  • 3 total stops
  • 32h 30m total
  • London to Ontario
Search Deals
Highest demand for flights based on searches. 9% potential increase in price (C$ 125 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 2% potential price decrease (C$ 28 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in July 2026
Search Deals
Price to beat on a round-trip flight from London Heathrow to Ontario.
Search Deals
Price to beat on a one-way flight from London Heathrow to Ontario.
Search Deals

Cheapflights Fare Finder

 
Customize your flight search to find flights from Heathrow to Ontario 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 629,999 searches. Data last updated 25 July 2026.
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

LondonMontreal

LHR - YUL

LHRYUL

London Heathrow

Tue 8/9

6:50 a.m.-8:12 p.m.

2 stops18h 22m

Montreal Pierre Elliott Trudeau Intl

Sun 13/9

11:23 a.m.-5:55 a.m.

1 stop13h 32m

C$ 801

LondonToronto

LHR - YYZ

LHRYYZ

London Heathrow

Tue 8/9

2:10 p.m.-5:20 p.m.

Nonstop8h 10m

Toronto Pearson Intl

Tue 15/9

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

Nonstop7h 00m

C$ 804

LondonToronto

LHR - YYZ

LHRYYZ

London Heathrow

Fri 13/11

3:00 p.m.-6:00 p.m.

Nonstop8h 00m

Toronto Pearson Intl

Fri 27/11

11:00 p.m.-11:20 a.m.

Nonstop7h 20m

C$ 806

LondonMontreal

LHR - YUL

LHRYUL

London Heathrow

Tue 8/9

11:30 a.m.-11:27 p.m.

2 stops16h 57m

Montreal Pierre Elliott Trudeau Intl

Tue 15/9

6:50 p.m.-4:15 p.m.

1 stop16h 25m

C$ 821

LondonToronto

LHR - YTZ

LHRYTZ

London Heathrow

Mon 14/9

6:50 a.m.-8:11 p.m.

2 stops18h 21m

Toronto Island

Mon 26/10

3:15 p.m.-6:40 a.m.

1 stop11h 25m

C$ 823

LondonToronto

LHR - YTZ

LHRYTZ

London Heathrow

Thu 29/10

6:50 a.m.-8:12 p.m.

2 stops17h 22m

Toronto Island

Thu 5/11

3:15 p.m.-6:40 a.m.

1 stop10h 25m

C$ 825

LondonToronto

LHR - YYZ

LHRYYZ

London Heathrow

Fri 18/9

9:30 a.m.-10:23 p.m.

2 stops17h 53m

Toronto Pearson Intl

Thu 1/10

10:45 a.m.-5:55 a.m.

1 stop14h 10m

C$ 835

LondonToronto

LHR - YYZ

LHRYYZ

London Heathrow

Sun 30/8

4:40 p.m.-11:54 p.m.

1 stop12h 14m

Toronto Pearson Intl

Tue 29/9

4:35 p.m.-9:20 a.m.

1 stop11h 45m

C$ 879

LondonToronto

LHR - YTZ

LHRYTZ

London Heathrow

Sat 19/9

12:15 p.m.-6:51 p.m.

1 stop11h 36m

Toronto Island

Thu 24/9

3:15 p.m.-6:55 a.m.

1 stop10h 40m

C$ 879

LondonMontreal

LHR - YUL

LHRYUL

London Heathrow

Fri 25/9

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

1 stop25h 30m

Montreal Pierre Elliott Trudeau Intl

Sun 4/10

11:45 p.m.-8:05 p.m.

1 stop15h 20m

C$ 906

Flights are sorted by cheapest round-trip flights first.

Deals found on 20/7

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
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 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$ 782). Flying from London Heathrow Airport to Region of Ontario in August is currently the most expensive (average of C$ 1,201). 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?

Find hourly flight availability from Heathrow to Ontario. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated 25 July 2026.

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

Explore weekly flight availability from Heathrow to Ontario. Discover flights operating on different days of the week, giving you the flexibility to choose a travel day that best fits your plans. Compare info to find the most convenient option for your journey. Data last updated 25 July 2026.

The most flights from LHR to CAON are scheduled on a Friday (40 on average). You will have fewer flight options on Sunday, 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$ 994 and C$ 1,375 in September.
The cheapest round-trip price found within the last 5 days was C$ 759 on Lufthansa (11 Sep-20 Sep).

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 62 days in advance of your trip. Fares are likely to increase a fortnight or so before your departure date.

Reviews of airlines servicing Ontario

Get insights into the airlines that provide service to Ontario. 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 Ontario. Reviews last updated 25 July 2026.
Read reviews from past customers who have flown Virgin Atlantic,United Airlines, andAir Canada 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
695 reviews
Check prices

Entertainment

7.5

Overall

7.5

Boarding

7.7

Crew

8.1

Comfort

7.3

Food

6.9

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
695 reviews
Virgin Atlantic
7.5
Good
695 reviews
Check prices

Entertainment

7.5

Overall

7.5

Boarding

7.7

Crew

8.1

Comfort

7.3

Food

6.9

Reviews

1 / 20
10.0
Excellent

Edwin,May 2026

LHR - LAX

First time flying with Virgin. It was everything I hoped it would be.
United Airlines
7.4
Good
10,036 reviews
Virgin Atlantic
7.5
Good
695 reviews
Check prices

Entertainment

7.5

Overall

7.5

Boarding

7.7

Crew

8.1

Comfort

7.3

Food

6.9

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
11,385 reviews
Virgin Atlantic
7.5
Good
695 reviews
Check prices

Entertainment

7.5

Overall

7.5

Boarding

7.7

Crew

8.1

Comfort

7.3

Food

6.9

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
8,157 reviews
Virgin Atlantic
7.5
Good
695 reviews
Check prices

Entertainment

7.5

Overall

7.5

Boarding

7.7

Crew

8.1

Comfort

7.3

Food

6.9

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
8,132 reviews
Virgin Atlantic
7.5
Good
695 reviews
Check prices

Entertainment

7.5

Overall

7.5

Boarding

7.7

Crew

8.1

Comfort

7.3

Food

6.9

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

Find useful and relevant information for your journey from Heathrow to Ontario. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

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

    United Airlines, Lufthansa, and Virgin Atlantic can get you from London Heathrow Airport to Region of Ontario in just under 8h 10m. Your travel time can differ by up to 10h 12m. 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$ 418 on Aer Lingus. Other airlines that offer cheap prices include TAP AIR PORTUGAL from C$ 434 and KLM from C$ 454 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 (84%), Thai Airways (84%), Egyptair (82%).

  • 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$ 1,131, our data shows the cheapest flight currently is C$ 454. When looking at the most popular route, (London Heathrow - Toronto Pearson Intl), you can expect to pay C$ 485 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$ 782). Flying from London Heathrow Airport to Region of Ontario in August is currently the most expensive (average of C$ 1,201). 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

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Top 10 airlines flying from Heathrow to Ontario

Discover the top 10 airlines that operate flights from Heathrow to Ontario. 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 629,999 searches. Data last updated 25 July 2026.
AirlineCheapestAverageFlexibilityOn-time
Aer LingusCheapestC$ 448AverageC$ 1,133FlexibilityNo cancel feeOn-timeN/A
Search Aer Lingus flights
IcelandairCheapestC$ 625AverageC$ 711FlexibilityNo cancel feeOn-time76%
Search Icelandair flights
TAP AIR PORTUGALCheapestC$ 639AverageC$ 887FlexibilityNo cancel feeOn-timeN/A
Search TAP AIR PORTUGAL flights
British AirwaysCheapestC$ 651AverageC$ 996FlexibilityNo cancel feeOn-time70%
Search British Airways flights
DeltaCheapestC$ 671AverageC$ 1,050FlexibilityNo cancel feeOn-timeN/A
Search Delta flights
KLMCheapestC$ 686AverageC$ 1,099FlexibilityNo cancel feeOn-time75%
Search KLM flights
Air CanadaCheapestC$ 689AverageC$ 991FlexibilityNo cancel feeOn-time67%
Search Air Canada flights
LufthansaCheapestC$ 697AverageC$ 1,044FlexibilityNo cancel feeOn-time76%
Search Lufthansa flights
United AirlinesCheapestC$ 742AverageC$ 1,326FlexibilityNo cancel feeOn-time69%
Search United Airlines flights
Virgin AtlanticCheapestC$ 754AverageC$ 1,017FlexibilityNo cancel feeOn-time72%
Search Virgin Atlantic flights

Fly with Cheapflights

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

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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