Cheap flights from London Heathrow Airport to Ontario from £236

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 16/9. Fares are subject to change and may not be available on all flights or dates of travel.
LHR — YYZ
3 Sep — 10 Sep1
1 adult

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 29 August 2025.

Round-trip from

£357

One-way from

£236

Popular in

December

Cheapest in

February

Average price

£526

Good round-trip deal

£404 or less

Good one-way deal

£546 or less
Virgin Atlantic
  • Virgin Atlantic
  • 25/9-2/10
  • Nonstop
  • 15h 00m total
  • London to Ontario
16/9
  • 16/9
  • 3 total stops
  • 38h 22m total
  • London to Ontario
Highest demand for flights based on searches. 3% potential increase in price (£10 potential increase over avg. return price).
Cheapest flight prices on average. 2% potential price decrease (£9 potential savings vs. average return price).
Average for round-trip flights in August 2025
Price to beat on a round-trip flight from London Heathrow to Ontario.
Price to beat on a one-way flight from London Heathrow to Ontario.

Find flight deals from Heathrow to Ontario

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 29 August 2025.

Thu 25/917:50LHR - YYZ
Nonstop7h 50mVirgin Atlantic
Thu 2/1022:30YYZ - LHR
Nonstop7h 10mVirgin Atlantic
Deal found 28/8£357
Tue 11/1109:30LHR - YYZ
1 stop11h 45mLufthansa
Thu 20/1117:00YYZ - LHR
1 stop9h 10mLufthansa
Deal found 27/8£358
Sat 13/909:30LHR - YTZ
1 stop10h 15mAir Canada
Sat 20/915:25YTZ - LHR
1 stop10h 05mAir Canada
Deal found 28/8£358
Fri 19/916:00LHR - YYZ
Nonstop7h 55mMultiple Airlines
Mon 22/923:35YYZ - LHR
Nonstop7h 15mMultiple Airlines
Deal found 28/8£358
Sat 13/906:50LHR - YTZ
2 stops12h 55mAir Canada
Wed 17/917:25YTZ - LHR
1 stop11h 10mAir Canada
Deal found 28/8£358
Wed 3/917:40LHR - YYZ
1 stop10h 30mAir Canada
Mon 8/906:30YYZ - LHR
1 stop9h 30mAir Canada
Deal found 27/8£359
Sat 6/906:50LHR - YUL
1 stop9h 45mMultiple Airlines
Thu 11/919:10YUL - LHR
1 stop20h 45mMultiple Airlines
Deal found 28/8£359
Fri 5/914:05LHR - YTZ
1 stop10h 44mAir Canada
Mon 8/916:10YTZ - LHR
1 stop9h 20mAir Canada
Deal found 28/8£359
Wed 17/906:00LHR - YYZ
1 stop12h 50mAustrian Airlines
Tue 30/921:20YYZ - LHR
1 stop31h 15mAustrian Airlines
Deal found 27/8£360
Thu 18/914:05LHR - YTZ
1 stop9h 40mAir Canada
Sun 28/912:25YTZ - LHR
1 stop13h 05mAir Canada
Deal found 28/8£360
Sun 9/1106:30LHR - YYZ
1 stop11h 35mLufthansa
Fri 21/1120:25YYZ - LHR
Nonstop7h 05mLufthansa
Deal found 26/8£360
Thu 4/909:30LHR - YTZ
1 stop10h 15mAir Canada
Tue 9/915:25YTZ - LHR
1 stop10h 05mAir Canada
Deal found 28/8£360

Cheapflights Fare Finder

 
Customise 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 858,174 searches. Data last updated 29 August 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

Tue 11/11

09:30-16:15

1 stop11h 45m

Toronto Pearson Intl

Sat 22/11

17:00-07:10

1 stop9h 10m

£358

LondonToronto

LHR - YYZ

LHRYYZ

London Heathrow

Thu 25/9

17:50-20:40

Nonstop7h 50m

Toronto Pearson Intl

Thu 2/10

22:30-10:40

Nonstop7h 10m

£358

LondonToronto

LHR - YTZ

LHRYTZ

London Heathrow

Sat 13/9

06:50-14:45

2 stops12h 55m

Toronto Island

Wed 17/9

10:20-06:30

2 stops15h 10m

£358

LondonToronto

LHR - YYZ

LHRYYZ

London Heathrow

Tue 11/11

06:30-13:05

1 stop11h 35m

Toronto Pearson Intl

Fri 21/11

20:25-08:30

Nonstop7h 05m

£358

LondonToronto

LHR - YTZ

LHRYTZ

London Heathrow

Mon 22/9

09:30-16:45

1 stop12h 15m

Toronto Island

Tue 30/9

18:25-09:35

1 stop10h 10m

£358

LondonToronto

LHR - YYZ

LHRYYZ

London Heathrow

Tue 11/11

09:30-16:15

1 stop11h 45m

Toronto Pearson Intl

Thu 20/11

17:00-07:10

1 stop9h 10m

£358

LondonToronto

LHR - YTZ

LHRYTZ

London Heathrow

Wed 15/10

06:50-16:45

2 stops14h 55m

Toronto Island

Sun 19/10

18:25-09:35

1 stop10h 10m

£358

LondonToronto

LHR - YTZ

LHRYTZ

London Heathrow

Fri 10/10

14:05-19:49

1 stop10h 44m

Toronto Island

Sat 18/10

16:10-08:35

1 stop11h 25m

£358

LondonToronto

LHR - YTZ

LHRYTZ

London Heathrow

Fri 17/10

09:30-16:45

1 stop12h 15m

Toronto Island

Mon 17/11

12:30-07:10

1 stop13h 40m

£358

LondonToronto

LHR - YTZ

LHRYTZ

London Heathrow

Mon 8/9

09:30-16:45

1 stop12h 15m

Toronto Island

Sun 21/9

15:25-06:30

1 stop10h 05m

£358

Flights are sorted by cheapest return flights first.

Deals found on 28/8

Showing 1-10 of 60 results
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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 return 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, January is the cheapest month in which you can book a flight from London Heathrow Airport to Region of Ontario (average of £490). Flying from London Heathrow Airport to Region of Ontario in July is currently the most expensive (average of £708). 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 29 August 2025.

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 29 August 2025.

The most flights from LHR to CAON are scheduled on a Thursday (39 on average). You will have fewer flight options on Tuesday, which is when the least amount of flights are scheduled (15 on average).

How much does it cost for a return flight 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 29 August 2025.
Read reviews from past customers who have flown with Air France, Virgin Atlantic, 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.

Crew

8.1

Boarding

7.4

Entertainment

6.9

Comfort

7.4

Overall

7.4

Food

7.0

Reviews

1 / 20
10.0
Excellent

SYLVIA,Apr 2025

TLV - CDG

A newer plane. The flight from TelAviv to Paris was on a new aircraft, wider seat. ,more privacy. Nice toilets. The flight from Paris to Santiago Chile was on a very old aircraft. Awful toilets, outmoded sits etc.

Crew

8.1

Boarding

7.4

Entertainment

6.9

Comfort

7.4

Overall

7.4

Food

7.0

Reviews

1 / 20
10.0
Excellent

SYLVIA,Apr 2025

TLV - CDG

A newer plane. The flight from TelAviv to Paris was on a new aircraft, wider seat. ,more privacy. Nice toilets. The flight from Paris to Santiago Chile was on a very old aircraft. Awful toilets, outmoded sits etc.

Crew

8.1

Boarding

7.4

Entertainment

6.9

Comfort

7.4

Overall

7.4

Food

7.0

Reviews

1 / 20
10.0
Excellent

SYLVIA,Apr 2025

TLV - CDG

A newer plane. The flight from TelAviv to Paris was on a new aircraft, wider seat. ,more privacy. Nice toilets. The flight from Paris to Santiago Chile was on a very old aircraft. Awful toilets, outmoded sits etc.

Crew

8.1

Boarding

7.4

Entertainment

6.9

Comfort

7.4

Overall

7.4

Food

7.0

Reviews

1 / 20
10.0
Excellent

SYLVIA,Apr 2025

TLV - CDG

A newer plane. The flight from TelAviv to Paris was on a new aircraft, wider seat. ,more privacy. Nice toilets. The flight from Paris to Santiago Chile was on a very old aircraft. Awful toilets, outmoded sits etc.

Crew

8.1

Boarding

7.4

Entertainment

6.9

Comfort

7.4

Overall

7.4

Food

7.0

Reviews

1 / 20
10.0
Excellent

SYLVIA,Apr 2025

TLV - CDG

A newer plane. The flight from TelAviv to Paris was on a new aircraft, wider seat. ,more privacy. Nice toilets. The flight from Paris to Santiago Chile was on a very old aircraft. Awful toilets, outmoded sits etc.

Crew

8.1

Boarding

7.4

Entertainment

6.9

Comfort

7.4

Overall

7.4

Food

7.0

Reviews

1 / 20
10.0
Excellent

SYLVIA,Apr 2025

TLV - CDG

A newer plane. The flight from TelAviv to Paris was on a new aircraft, wider seat. ,more privacy. Nice toilets. The flight from Paris to Santiago Chile was on a very old aircraft. Awful toilets, outmoded sits etc.

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?

    Airlines like Lufthansa, Virgin Atlantic, and Air Canada fly from London Heathrow Airport to Region of Ontario in about 7h 50m. The time it takes to get you to your destination can typically vary by up to 5h 05m. There are 3543 mi between London Heathrow Airport and Region of Ontario. When browsing for deals, the options you’ll see will be for both direct flights and flights with stops.

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

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

    The top 3 most reliable airlines when flying from London Heathrow Airport to Region of Ontario are Thai Airways (82%), Ethiopian Air (81%) and Air Canada (75%).

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

    Looking for the cheapest flight from London Heathrow Airport to Region of Ontario? While on average our users pay £1,002, our data indicates the cheapest price to be £350. The most popular route (London Heathrow - Toronto Pearson Intl), is priced around £296.

  • 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 holiday 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, January is the cheapest month in which you can book a flight from London Heathrow Airport to Region of Ontario (average of £490). Flying from London Heathrow Airport to Region of Ontario in July is currently the most expensive (average of £708). 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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Alternative routes for Heathrow to Ontario

See prices for flight routes from nearby airports that may be better suited for you.

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 858,174 searches. Data last updated 29 August 2025.
AirlineCheapestAverageFlexibilityOn-time
Aer LingusCheapest£290Average£505FlexibilityNo cancel feeOn-timeN/A
Search Aer Lingus flights
LufthansaCheapest£297Average£510FlexibilityNo cancel feeOn-time76%
Search Lufthansa flights
Scandinavian AirlinesCheapest£297Average£444FlexibilityNo cancel feeOn-time77%
Search Scandinavian Airlines flights
DeltaCheapest£304Average£496FlexibilityNo cancel feeOn-timeN/A
Search Delta flights
TAP AIR PORTUGALCheapest£305Average£527FlexibilityNo cancel feeOn-timeN/A
Search TAP AIR PORTUGAL flights
Air TransatCheapest£309Average£425FlexibilityNo cancel feeOn-time50%
Search Air Transat flights
Air CanadaCheapest£311Average£537FlexibilityNo cancel feeOn-time67%
Search Air Canada flights
IcelandairCheapest£318Average£379FlexibilityNo cancel feeOn-time76%
Search Icelandair flights
Virgin AtlanticCheapest£327Average£444FlexibilityNo cancel feeOn-time72%
Search Virgin Atlantic flights
KLMCheapest£335Average£471FlexibilityNo cancel feeOn-time75%
Search KLM flights

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

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

Need flexible booking options for your flight to Ontario from Heathrow? Don’t worry, Cheapflights have you covered. Use our search filter to only show flights with no change fees.

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