Find flights
Deals
When to book
Airlines
FAQs

Cheap flights from London Heathrow Airport to Ontario from C$ 441

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 18/11. Fares are subject to change and may not be available on all flights or dates of travel.
LHR — YYZ
27 Nov — 4 Dec1
1 adult
1 adult, Economy, 0 bags

Find 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 28 October 2025.

Sat 6/127:55 p.m.LHR - YYZ
1 stop23h 30mTAP AIR PORTUGAL
Sun 11/15:30 p.m.YYZ - LHR
1 stop14h 10mTAP AIR PORTUGAL
Deal found 27/10C$ 653
Thu 27/1112:15 p.m.LHR - YYZ
1 stop11h 00mIcelandair
Sat 6/127:40 p.m.YYZ - LHR
1 stop18h 50mIcelandair
Deal found 27/10C$ 655
Tue 9/126:00 a.m.LHR - YYZ
1 stop14h 20mTAP AIR PORTUGAL
Sun 11/15:30 p.m.YYZ - LHR
1 stop14h 10mTAP AIR PORTUGAL
Deal found 28/10C$ 657
Thu 13/1112:15 p.m.LHR - YYZ
1 stop11h 00mIcelandair
Tue 18/117:40 p.m.YYZ - LHR
1 stop10h 10mIcelandair
Deal found 28/10C$ 659
Fri 5/128:35 p.m.LHR - YYZ
1 stop26h 40mIcelandair
Sun 7/127:40 p.m.YYZ - LHR
1 stop10h 10mIcelandair
Deal found 28/10C$ 666
Sat 6/1212:15 p.m.LHR - YYZ
1 stop11h 00mIcelandair
Mon 8/127:40 p.m.YYZ - LHR
1 stop10h 10mIcelandair
Deal found 28/10C$ 678
Thu 6/117:40 a.m.LHR - YYZ
1 stop12h 10mLufthansa
Mon 10/117:45 p.m.YYZ - LHR
1 stop12h 15mLufthansa
Deal found 28/10C$ 680
Wed 3/1212:15 p.m.LHR - YYZ
1 stop11h 00mIcelandair
Wed 10/127:40 p.m.YYZ - LHR
1 stop18h 50mIcelandair
Deal found 28/10C$ 690
Thu 11/1212:15 p.m.LHR - YYZ
1 stop11h 00mIcelandair
Wed 14/17:40 p.m.YYZ - LHR
1 stop10h 10mIcelandair
Deal found 28/10C$ 692
Mon 8/1212:15 p.m.LHR - YYZ
1 stop11h 00mIcelandair
Mon 19/17:40 p.m.YYZ - LHR
1 stop10h 10mIcelandair
Deal found 28/10C$ 694
Mon 1/129:00 a.m.LHR - YTZ
2 stops13h 55mAir Canada
Sun 7/123:30 p.m.YTZ - LHR
1 stop10h 40mAir Canada
Deal found 26/10C$ 702
Tue 18/119:00 a.m.LHR - YTZ
2 stops17h 35mAir Canada
Tue 25/118:50 a.m.YTZ - LHR
2 stops17h 20mAir Canada
Deal found 28/10C$ 738

Cheap flight deals from Heathrow to Ontario

Keep the following information in mind while searching for Heathrow to Ontario flight deals. Data was last updated 28 October 2025.

Round-trip from

C$ 653

One-way from

C$ 441

Popular in

December

Cheapest in

February

Average price

C$ 796

Good round-trip deal

C$ 777 or less

Good one-way deal

C$ 677 or less
TAP AIR PORTUGAL
  • TAP AIR PORTUGAL
  • 6/12-11/1
  • 2 total stops
  • 37h 40m total
  • London to Ontario
Search Deals
18/11
  • 18/11
  • 1 total stop
  • 33h 25m total
  • London to Ontario
Search Deals
Highest demand for flights based on searches. 4% potential increase in price (C$ 53 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 2% potential price decrease (C$ 33 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in October 2025
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 28 October 2025.
Use the filters below to find and compare flights from London Heathrow Airport to Ontario that are best for you.

Fly from

Heathrow

Fly to

Ontario

Route

Depart

Return

Price

LondonToronto

LHR - YYZ

LHRYYZ

London Heathrow

Fri 21/11

7:50 a.m.-3:55 p.m.

1 stop13h 05m

Toronto Pearson Intl

Wed 26/11

5:25 p.m.-11:25 a.m.

1 stop13h 00m

C$ 736

LondonToronto

LHR - YTZ

LHRYTZ

London Heathrow

Tue 18/11

9:00 a.m.-5:55 p.m.

2 stops13h 55m

Toronto Island

Sun 23/11

8:50 a.m.-7:10 a.m.

2 stops17h 20m

C$ 740

LondonToronto

LHR - YTZ

LHRYTZ

London Heathrow

Wed 26/11

9:00 a.m.-5:55 p.m.

2 stops13h 55m

Toronto Island

Wed 3/12

8:50 a.m.-7:10 a.m.

2 stops17h 20m

C$ 740

LondonToronto

LHR - YYZ

LHRYYZ

London Heathrow

Fri 21/11

6:35 a.m.-2:50 p.m.

1 stop13h 15m

Toronto Pearson Intl

Wed 26/11

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

Nonstop7h 20m

C$ 750

LondonToronto

LHR - YYZ

LHRYYZ

London Heathrow

Wed 12/11

1:30 p.m.-7:50 p.m.

1 stop11h 20m

Toronto Pearson Intl

Wed 24/12

5:30 p.m.-9:20 a.m.

1 stop10h 50m

C$ 768

LondonToronto

LHR - YTZ

LHRYTZ

London Heathrow

Thu 26/2

9:00 a.m.-7:55 a.m.

2 stops27h 55m

Toronto Island

Sun 1/3

12:30 p.m.-9:20 a.m.

2 stops15h 50m

C$ 769

LondonToronto

LHR - YTZ

LHRYTZ

London Heathrow

Thu 12/2

9:00 a.m.-5:55 p.m.

2 stops13h 55m

Toronto Island

Fri 20/2

6:30 p.m.-8:35 p.m.

2 stops21h 05m

C$ 769

LondonToronto

LHR - YTZ

LHRYTZ

London Heathrow

Sun 1/3

7:25 p.m.-5:55 p.m.

2 stops27h 30m

Toronto Island

Sun 8/3

5:30 p.m.-8:35 p.m.

2 stops23h 05m

C$ 773

LondonToronto

LHR - YYZ

LHRYYZ

London Heathrow

Thu 26/2

7:50 p.m.-3:40 p.m.

2 stops24h 50m

Toronto Pearson Intl

Sun 1/3

5:10 p.m.-2:35 p.m.

2 stops16h 25m

C$ 786

LondonToronto

LHR - YTZ

LHRYTZ

London Heathrow

Mon 8/12

6:00 a.m.-5:55 p.m.

2 stops16h 55m

Toronto Island

Fri 9/1

6:45 p.m.-9:20 a.m.

1 stop9h 35m

C$ 808

Flights are sorted by cheapest round-trip flights first.

Deals found on 26/10

Showing 1-10 of 60 results
1
2
3
...
6

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, May is the cheapest month in which you can book a flight from London Heathrow Airport to Region of Ontario (average of C$ 569). Flying from London Heathrow Airport to Region of Ontario in December is currently the most expensive (average of C$ 699). 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 28 October 2025.

When flying from London Heathrow Airport to Region of Ontario, the time of day you fly usually plays a role in the price. Save by searching for a flight in the evening, which can drop the price by up to 18% versus a flight in the morning.

What is the cheapest day to fly from London Heathrow Airport to Region of Ontario?

Use this chart to determine the cheapest time to fly round-trip from Heathrow to Ontario. Price data was last updated on 16 December 2024.

Travelers seeking maximum savings on their London Heathrow Airport to Region of Ontario flight should consider departing on Friday at noon when fares are most often at their lowest. Friday evenings flights should be avoided if possible as fares are typically the most expensive at this time.

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 28 October 2025.
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
670 reviews
Check prices

Overall

7.5

Comfort

7.3

Entertainment

7.5

Food

6.9

Boarding

7.7

Crew

8.1

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
670 reviews
Virgin Atlantic
7.5
Good
670 reviews
Check prices

Overall

7.5

Comfort

7.3

Entertainment

7.5

Food

6.9

Boarding

7.7

Crew

8.1

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
9,001 reviews
Virgin Atlantic
7.5
Good
670 reviews
Check prices

Overall

7.5

Comfort

7.3

Entertainment

7.5

Food

6.9

Boarding

7.7

Crew

8.1

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
10,371 reviews
Virgin Atlantic
7.5
Good
670 reviews
Check prices

Overall

7.5

Comfort

7.3

Entertainment

7.5

Food

6.9

Boarding

7.7

Crew

8.1

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
7,538 reviews
Virgin Atlantic
7.5
Good
670 reviews
Check prices

Overall

7.5

Comfort

7.3

Entertainment

7.5

Food

6.9

Boarding

7.7

Crew

8.1

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
7,483 reviews
Virgin Atlantic
7.5
Good
670 reviews
Check prices

Overall

7.5

Comfort

7.3

Entertainment

7.5

Food

6.9

Boarding

7.7

Crew

8.1

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?

    Aer Lingus, Air Canada, and Lufthansa can get you from London Heathrow Airport to Region of Ontario in just under 11h 45m. Your travel time can differ by up to 2h 10m. 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$ 508 on British Airways. Other airlines that offer cheap prices include Delta from C$ 550 and KLM from C$ 554 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: Ethiopian Air (85%), 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$ 1,671, our data shows the cheapest flight currently is C$ 513. When looking at the most popular route, (London Heathrow - Toronto Pearson Intl), you can expect to pay C$ 625 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, May is the cheapest month in which you can book a flight from London Heathrow Airport to Region of Ontario (average of C$ 569). Flying from London Heathrow Airport to Region of Ontario in December is currently the most expensive (average of C$ 699). 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.

Alternative routes for Heathrow to Ontario

See prices for flight routes from nearby airports that may be better suited for you.
Heathrow to Pearson Intl flights
Gatwick to Pearson Intl flights
Heathrow to Vancouver Intl flights
London City to Pearson Intl flights
Heathrow to Calgary flights
Gatwick to Vancouver Intl flights
Luton to Pearson Intl flights
Stansted to Pearson Intl flights
Heathrow to Pierre Elliott Trudeau Intl flights
London City to Vancouver Intl flights
Gatwick to Calgary flights
Gatwick to Pierre Elliott Trudeau Intl flights
Heathrow to Abbotsford flights
London City to Calgary flights
London City to Pierre Elliott Trudeau Intl flights
Stansted to Pierre Elliott Trudeau Intl flights
Luton to Pierre Elliott Trudeau Intl flights
Heathrow to Halifax flights
Luton to Calgary flights
Heathrow to Ottawa flights
Luton to Vancouver Intl flights
Gatwick to Ottawa flights
Southend to Pierre Elliott Trudeau Intl flights
Gatwick to Halifax flights
Heathrow to Victoria flights
Stansted to Calgary flights
Heathrow to Winnipeg flights
Heathrow to Edmonton flights
Gatwick to Winnipeg flights
Southend to Pearson Intl flights
Gatwick to Edmonton flights
Heathrow to Hamilton flights
Heathrow to London flights
Gatwick to Victoria flights
Gatwick to Kelowna flights
Heathrow to Kelowna flights
Gatwick to Québec City flights

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 28 October 2025.
AirlineCheapestAverageFlexibilityOn-time
Aer LingusCheapestC$ 445AverageC$ 1,085FlexibilityNo cancel feeOn-timeN/A
Search Aer Lingus flights
IcelandairCheapestC$ 564AverageC$ 754FlexibilityNo cancel feeOn-time76%
Search Icelandair flights
LufthansaCheapestC$ 575AverageC$ 895FlexibilityNo cancel feeOn-time76%
Search Lufthansa flights
Air TransatCheapestC$ 637AverageC$ 847FlexibilityNo cancel feeOn-time50%
Search Air Transat flights
Virgin AtlanticCheapestC$ 637AverageC$ 828FlexibilityNo cancel feeOn-time72%
Search Virgin Atlantic flights
British AirwaysCheapestC$ 649AverageC$ 862FlexibilityNo cancel feeOn-time70%
Search British Airways flights
TAP AIR PORTUGALCheapestC$ 659AverageC$ 998FlexibilityNo cancel feeOn-timeN/A
Search TAP AIR PORTUGAL flights
Air CanadaCheapestC$ 661AverageC$ 949FlexibilityNo cancel feeOn-time67%
Search Air Canada flights
DeltaCheapestC$ 716AverageC$ 784FlexibilityNo cancel feeOn-timeN/A
Search Delta flights
United AirlinesCheapestC$ 737AverageC$ 1,253FlexibilityNo cancel feeOn-time69%
Search United Airlines 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!

100% Free

Cheapflights is completely free to use, so you can start saving the moment you arrive.

Book with Flexibility

Our users can plan ahead with confidence and find flights with no change fees

Travel Smart

Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.