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Cheap flights from London Heathrow Airport to Ontario from C$ 424

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 30/4. Fares are subject to change and may not be available on all flights or dates of travel.
LHR — YYZ
12 Apr — 19 Apr1
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 13 March 2026.

Mon 4/57:30 p.m.
LHR
-
YYZ
1 stop25h 10m
Scandinavian Airlines
Tue 19/55:10 p.m.
YYZ
-
LHR
1 stop17h 50m
Scandinavian Airlines
Deal found 9/3C$ 626
Fri 13/36:00 p.m.
LHR
-
YYZ
Nonstop8h 05m
Air Canada
Thu 19/31:00 p.m.
YYZ
-
LHR
1 stop14h 10m
Air Canada
Deal found 8/3C$ 629
Tue 21/49:25 p.m.
LHR
-
YYZ
1 stop26h 45m
Icelandair
Thu 30/411:10 p.m.
YYZ
-
LHR
1 stop31h 45m
Icelandair
Deal found 9/3C$ 637
Wed 15/41:05 p.m.
LHR
-
YYZ
1 stop11h 05m
Icelandair
Tue 28/48:45 p.m.
YYZ
-
LHR
1 stop18h 35m
Icelandair
Deal found 10/3C$ 638
Sun 12/49:25 p.m.
LHR
-
YYZ
1 stop26h 45m
Icelandair
Tue 28/48:45 p.m.
YYZ
-
LHR
1 stop10h 10m
Icelandair
Deal found 9/3C$ 641
Tue 21/49:25 p.m.
LHR
-
YYZ
1 stop29h 40m
Icelandair
Sun 26/48:45 p.m.
YYZ
-
LHR
1 stop10h 10m
Icelandair
Deal found 10/3C$ 644
Sat 25/49:25 p.m.
LHR
-
YYZ
1 stop26h 45m
Icelandair
Mon 4/58:45 p.m.
YYZ
-
LHR
1 stop18h 35m
Icelandair
Deal found 9/3C$ 652
Thu 23/41:05 p.m.
LHR
-
YYZ
1 stop14h 00m
Icelandair
Wed 29/48:45 p.m.
YYZ
-
LHR
1 stop18h 35m
Icelandair
Deal found 9/3C$ 653
Thu 23/41:05 p.m.
LHR
-
YYZ
1 stop14h 00m
Icelandair
Thu 30/411:10 p.m.
YYZ
-
LHR
1 stop16h 10m
Icelandair
Deal found 9/3C$ 658
Thu 7/51:05 p.m.
LHR
-
YYZ
1 stop14h 00m
Icelandair
Mon 11/58:45 p.m.
YYZ
-
LHR
1 stop10h 10m
Icelandair
Deal found 9/3C$ 663
Wed 6/52:10 p.m.
LHR
-
YTZ
1 stop12h 22m
Air Canada
Mon 11/54:30 p.m.
YTZ
-
LHR
1 stop12h 30m
Air Canada
Deal found 12/3C$ 664
Thu 16/41:05 p.m.
LHR
-
YYZ
1 stop11h 05m
Icelandair
Sun 19/48:45 p.m.
YYZ
-
LHR
1 stop18h 35m
Icelandair
Deal found 9/3C$ 665

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 13 March 2026.

Round-trip from

C$ 626

One-way from

C$ 424

Popular in

December

Cheapest in

September

Average price

C$ 793

Good round-trip deal

C$ 721 or less

Good one-way deal

C$ 627 or less
Scandinavian Airlines
  • Scandinavian Airlines
  • 4/5-19/5
  • 2 total stops
  • 43h 00m total
  • London to Ontario
Search Deals
30/4
  • 30/4
  • 2 total stops
  • 23h 00m total
  • London to Ontario
Search Deals
Highest demand for flights based on searches. 5% potential increase in price (C$ 59 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 2% potential price decrease (C$ 29 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in March 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 13 March 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

LondonToronto

LHR - YYZ

LHRYYZ

London Heathrow

Thu 7/5

1:05 p.m.-7:10 p.m.

1 stop11h 05m

Toronto Pearson Intl

Mon 11/5

8:45 p.m.-8:20 p.m.

1 stop18h 35m

C$ 758

LondonToronto

LHR - YYZ

LHRYYZ

London Heathrow

Sat 18/4

1:05 p.m.-7:10 p.m.

1 stop11h 05m

Toronto Pearson Intl

Mon 27/4

11:10 p.m.-8:20 p.m.

1 stop16h 10m

C$ 778

LondonToronto

LHR - YYZ

LHRYYZ

London Heathrow

Mon 13/4

9:05 p.m.-3:40 p.m.

2 stops23h 35m

Toronto Pearson Intl

Mon 20/4

5:10 p.m.-4:25 p.m.

2 stops18h 15m

C$ 823

LondonToronto

LHR - YYZ

LHRYYZ

London Heathrow

Fri 15/5

9:30 a.m.-4:20 p.m.

1 stop11h 50m

Toronto Pearson Intl

Tue 8/9

9:05 p.m.-9:35 a.m.

Nonstop7h 30m

C$ 826

LondonToronto

LHR - YYZ

LHRYYZ

London Heathrow

Wed 13/5

1:30 p.m.-7:30 p.m.

1 stop11h 00m

Toronto Pearson Intl

Tue 8/9

6:00 p.m.-10:00 a.m.

1 stop11h 00m

C$ 857

LondonToronto

LHR - YYZ

LHRYYZ

London Heathrow

Wed 15/4

10:50 a.m.-10:23 p.m.

2 stops16h 33m

Toronto Pearson Intl

Thu 30/4

10:45 a.m.-6:55 a.m.

2 stops15h 10m

C$ 887

LondonToronto

LHR - YYZ

LHRYYZ

London Heathrow

Sat 25/4

7:30 a.m.-6:28 p.m.

2 stops15h 58m

Toronto Pearson Intl

Sun 17/5

5:30 p.m.-10:25 a.m.

1 stop11h 55m

C$ 890

LondonToronto

LHR - YYZ

LHRYYZ

London Heathrow

Sat 30/5

3:35 p.m.-3:40 p.m.

2 stops29h 05m

Toronto Pearson Intl

Sun 20/9

5:10 p.m.-5:00 p.m.

2 stops18h 50m

C$ 905

LondonToronto

LHR - YTZ

LHRYTZ

London Heathrow

Fri 17/4

4:40 p.m.-9:34 a.m.

2 stops21h 54m

Toronto Island

Thu 23/4

2:20 p.m.-10:40 a.m.

2 stops15h 20m

C$ 917

LondonToronto

LHR - YTZ

LHRYTZ

London Heathrow

Fri 17/4

4:40 p.m.-9:34 a.m.

2 stops21h 54m

Toronto Island

Mon 27/4

6:10 p.m.-6:55 a.m.

2 stops31h 45m

C$ 917

Flights are sorted by cheapest round-trip flights first.

Deals found on 11/3

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$ 552). Flying from London Heathrow Airport to Region of Ontario in December is currently the most expensive (average of C$ 669). 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 13 March 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 13 March 2026.

The most flights from LHR to CAON are scheduled on a Wednesday (31 on average). You will have fewer flight options on Monday, which is when the least amount of flights are scheduled (22 on average).

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

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 13 March 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
680 reviews
Check prices

Comfort

7.3

Food

6.9

Overall

7.5

Boarding

7.7

Entertainment

7.6

Crew

8.2

Reviews

1 / 20
6.0
Good

Pratap,Aug 2025

JFK - LHR

The flight is clean, food good and the staff are excellent! Very professional, polite and accommodating. The seat itself is really mediocre. Can’t believe there is not inch of storage space. Believe it or not it there is not place even to put away your phone or pen!! Very very surprising and terribly inconvenient. No coat hanger hook either. Had to give it away. ALL IN ALL VERY INCONVENIENT business class seat compared to their peers. What is even more surprising is that this on their relatively new fleet of Airbus A350-1000. I was having com platelets different expectations of Virgin and this has disappointed me. Everything else is just as good and as you would expect from Virgin!
Virgin Atlantic
7.5
Good
680 reviews
Virgin Atlantic
7.5
Good
680 reviews
Check prices

Comfort

7.3

Food

6.9

Overall

7.5

Boarding

7.7

Entertainment

7.6

Crew

8.2

Reviews

1 / 20
6.0
Good

Pratap,Aug 2025

JFK - LHR

The flight is clean, food good and the staff are excellent! Very professional, polite and accommodating. The seat itself is really mediocre. Can’t believe there is not inch of storage space. Believe it or not it there is not place even to put away your phone or pen!! Very very surprising and terribly inconvenient. No coat hanger hook either. Had to give it away. ALL IN ALL VERY INCONVENIENT business class seat compared to their peers. What is even more surprising is that this on their relatively new fleet of Airbus A350-1000. I was having com platelets different expectations of Virgin and this has disappointed me. Everything else is just as good and as you would expect from Virgin!
United Airlines
7.4
Good
9,421 reviews
Virgin Atlantic
7.5
Good
680 reviews
Check prices

Comfort

7.3

Food

6.9

Overall

7.5

Boarding

7.7

Entertainment

7.6

Crew

8.2

Reviews

1 / 20
6.0
Good

Pratap,Aug 2025

JFK - LHR

The flight is clean, food good and the staff are excellent! Very professional, polite and accommodating. The seat itself is really mediocre. Can’t believe there is not inch of storage space. Believe it or not it there is not place even to put away your phone or pen!! Very very surprising and terribly inconvenient. No coat hanger hook either. Had to give it away. ALL IN ALL VERY INCONVENIENT business class seat compared to their peers. What is even more surprising is that this on their relatively new fleet of Airbus A350-1000. I was having com platelets different expectations of Virgin and this has disappointed me. Everything else is just as good and as you would expect from Virgin!
Air Canada
7.1
Good
10,800 reviews
Virgin Atlantic
7.5
Good
680 reviews
Check prices

Comfort

7.3

Food

6.9

Overall

7.5

Boarding

7.7

Entertainment

7.6

Crew

8.2

Reviews

1 / 20
6.0
Good

Pratap,Aug 2025

JFK - LHR

The flight is clean, food good and the staff are excellent! Very professional, polite and accommodating. The seat itself is really mediocre. Can’t believe there is not inch of storage space. Believe it or not it there is not place even to put away your phone or pen!! Very very surprising and terribly inconvenient. No coat hanger hook either. Had to give it away. ALL IN ALL VERY INCONVENIENT business class seat compared to their peers. What is even more surprising is that this on their relatively new fleet of Airbus A350-1000. I was having com platelets different expectations of Virgin and this has disappointed me. Everything else is just as good and as you would expect from Virgin!
Lufthansa
6.8
Okay
7,848 reviews
Virgin Atlantic
7.5
Good
680 reviews
Check prices

Comfort

7.3

Food

6.9

Overall

7.5

Boarding

7.7

Entertainment

7.6

Crew

8.2

Reviews

1 / 20
6.0
Good

Pratap,Aug 2025

JFK - LHR

The flight is clean, food good and the staff are excellent! Very professional, polite and accommodating. The seat itself is really mediocre. Can’t believe there is not inch of storage space. Believe it or not it there is not place even to put away your phone or pen!! Very very surprising and terribly inconvenient. No coat hanger hook either. Had to give it away. ALL IN ALL VERY INCONVENIENT business class seat compared to their peers. What is even more surprising is that this on their relatively new fleet of Airbus A350-1000. I was having com platelets different expectations of Virgin and this has disappointed me. Everything else is just as good and as you would expect from Virgin!
British Airways
6.7
Okay
7,786 reviews
Virgin Atlantic
7.5
Good
680 reviews
Check prices

Comfort

7.3

Food

6.9

Overall

7.5

Boarding

7.7

Entertainment

7.6

Crew

8.2

Reviews

1 / 20
6.0
Good

Pratap,Aug 2025

JFK - LHR

The flight is clean, food good and the staff are excellent! Very professional, polite and accommodating. The seat itself is really mediocre. Can’t believe there is not inch of storage space. Believe it or not it there is not place even to put away your phone or pen!! Very very surprising and terribly inconvenient. No coat hanger hook either. Had to give it away. ALL IN ALL VERY INCONVENIENT business class seat compared to their peers. What is even more surprising is that this on their relatively new fleet of Airbus A350-1000. I was having com platelets different expectations of Virgin and this has disappointed me. Everything else is just as good and as you would expect from Virgin!

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?

    Icelandair, Scandinavian Airlines, and Lufthansa can get you from London Heathrow Airport to Region of Ontario in just under 11h 05m. Your travel time can differ by up to 12h 30m. 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$ 382 on TAP AIR PORTUGAL. Other airlines that offer cheap prices include Aer Lingus from C$ 404 and Virgin Atlantic from C$ 499 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 - Montreal Pierre Elliott Trudeau Intl or London Heathrow - Toronto Island.

  • 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: Ethiopian Air (90%), Thai Airways (90%), KLM (88%).

  • 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$ 1,450, our data shows the cheapest flight currently is C$ 528. When looking at the most popular route, (London Heathrow - Toronto Pearson Intl), you can expect to pay C$ 595 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$ 552). Flying from London Heathrow Airport to Region of Ontario in December is currently the most expensive (average of C$ 669). 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 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 13 March 2026.
AirlineCheapestAverageFlexibilityOn-time
Aer LingusCheapestC$ 433AverageC$ 1,055FlexibilityNo cancel feeOn-timeN/A
Search Aer Lingus flights
LufthansaCheapestC$ 554AverageC$ 871FlexibilityNo cancel feeOn-time76%
Search Lufthansa flights
Air TransatCheapestC$ 591AverageC$ 824FlexibilityNo cancel feeOn-time50%
Search Air Transat flights
IcelandairCheapestC$ 604AverageC$ 754FlexibilityNo cancel feeOn-time76%
Search Icelandair flights
TAP AIR PORTUGALCheapestC$ 617AverageC$ 859FlexibilityNo cancel feeOn-timeN/A
Search TAP AIR PORTUGAL flights
British AirwaysCheapestC$ 635AverageC$ 836FlexibilityNo cancel feeOn-time70%
Search British Airways flights
Air CanadaCheapestC$ 643AverageC$ 995FlexibilityNo cancel feeOn-time67%
Search Air Canada flights
DeltaCheapestC$ 648AverageC$ 871FlexibilityNo cancel feeOn-timeN/A
Search Delta flights
Virgin AtlanticCheapestC$ 697AverageC$ 864FlexibilityNo cancel feeOn-time72%
Search Virgin Atlantic flights
United AirlinesCheapestC$ 717AverageC$ 1,281FlexibilityNo cancel feeOn-time69%
Search United Airlines flights

Fly with Cheapflights

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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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