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Cheap flights from London Heathrow Airport to Ontario from £232

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 13/11. Fares are subject to change and may not be available on all flights or dates of travel.
LHR — YYZ
16 Oct — 23 Oct1
1 adult
1 adult, Economy

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 16 September 2025.

Round-trip from

£344

One-way from

£232

Popular in

December

Cheapest in

February

Average price

£377

Good round-trip deal

£379 or less

Good one-way deal

£508 or less
Air Canada
  • Air Canada
  • 6/11-17/11
  • 3 total stops
  • 48h 30m total
  • London to Ontario
Search Deals
13/11
  • 13/11
  • 1 total stop
  • 33h 25m total
  • London to Ontario
Search Deals
Highest demand for flights based on searches. 4% potential increase in price (£13 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 2% potential price decrease (£9 potential savings vs. average return price).
Search Deals
Average for round-trip flights in September 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

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 16 September 2025.

Thu 16/1006:00LHR - YYZ
1 stop15h 25mMultiple Airlines
Thu 6/1118:10YYZ - LHR
Nonstop7h 20mMultiple Airlines
Deal found 16/9£344
Sat 6/1207:40LHR - YYZ
1 stop12h 10mLufthansa
Mon 29/1223:00YYZ - LHR
Nonstop7h 20mLufthansa
Deal found 13/9£345
Wed 8/1006:00LHR - YTZ
2 stops16h 45mAir Canada
Sun 19/1015:25YTZ - LHR
1 stop10h 05mAir Canada
Deal found 15/9£345
Wed 8/1008:30LHR - YYZ
Nonstop7h 55mAir Canada
Mon 27/1023:55YYZ - LHR
Nonstop7h 25mAir Canada
Deal found 15/9£346
Sun 9/1106:50LHR - YTZ
2 stops13h 05mAir Canada
Mon 17/1110:25YTZ - LHR
2 stops15h 45mAir Canada
Deal found 14/9£346
Fri 17/1012:40LHR - YYZ
1 stop11h 45mAir Canada
Sun 19/1023:35YYZ - LHR
Nonstop7h 15mAir Canada
Deal found 16/9£347
Tue 23/906:00LHR - YTZ
2 stops15h 45mAir Canada
Sun 28/917:25YTZ - LHR
1 stop11h 10mAir Canada
Deal found 15/9£347
Mon 24/1109:00LHR - YYZ
2 stops14h 50mAir Canada
Sun 30/1113:00YYZ - LHR
2 stops14h 05mAir Canada
Deal found 14/9£347
Tue 7/1006:50LHR - YTZ
2 stops12h 55mAir Canada
Sun 19/1010:20YTZ - LHR
2 stops15h 10mAir Canada
Deal found 15/9£347
Fri 17/1012:40LHR - YYZ
1 stop10h 45mAir Canada
Fri 24/1021:30YYZ - LHR
Nonstop7h 30mAir Canada
Deal found 14/9£348
Sun 9/1106:50LHR - YTZ
2 stops19h 45mAir Canada
Wed 19/1108:30YTZ - LHR
1 stop17h 40mAir Canada
Deal found 14/9£348
Mon 6/1012:40LHR - YYZ
1 stop10h 45mAir Canada
Wed 5/1118:10YYZ - LHR
Nonstop7h 20mAir Canada
Deal found 14/9£349

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 16 September 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 - YTZ

LHRYTZ

London Heathrow

Sun 9/11

06:50-16:55

2 stops15h 05m

Toronto Island

Wed 19/11

12:30-07:10

1 stop13h 40m

£348

LondonToronto

LHR - YTZ

LHRYTZ

London Heathrow

Fri 14/11

06:50-14:55

2 stops13h 05m

Toronto Island

Wed 19/11

12:30-07:10

1 stop13h 40m

£348

LondonToronto

LHR - YTZ

LHRYTZ

London Heathrow

Sat 7/2

06:50-14:55

2 stops13h 05m

Toronto Island

Sat 14/2

15:30-07:10

1 stop10h 40m

£348

LondonToronto

LHR - YTZ

LHRYTZ

London Heathrow

Thu 20/11

06:50-14:55

2 stops13h 05m

Toronto Island

Tue 25/11

15:30-07:10

1 stop10h 40m

£349

LondonToronto

LHR - YTZ

LHRYTZ

London Heathrow

Sat 1/11

06:50-19:55

2 stops17h 05m

Toronto Island

Thu 6/11

08:30-08:05

2 stops18h 35m

£350

LondonToronto

LHR - YTZ

LHRYTZ

London Heathrow

Sun 14/12

19:25-17:55

2 stops27h 30m

Toronto Island

Mon 5/1

12:30-20:35

2 stops27h 05m

£351

LondonToronto

LHR - YTZ

LHRYTZ

London Heathrow

Wed 14/1

13:25-19:55

1 stop11h 30m

Toronto Island

Mon 19/1

15:30-07:10

1 stop10h 40m

£354

LondonToronto

LHR - YTZ

LHRYTZ

London Heathrow

Tue 11/11

13:25-21:35

1 stop13h 10m

Toronto Island

Fri 21/11

18:30-07:10

1 stop31h 40m

£355

LondonMontreal

LHR - YUL

LHRYUL

London Heathrow

Thu 20/11

07:40-18:23

2 stops15h 43m

Montreal Pierre Elliott Trudeau Intl

Sun 7/12

15:10-06:30

1 stop10h 20m

£364

LondonToronto

LHR - YYZ

LHRYYZ

London Heathrow

Sat 4/10

09:30-15:34

1 stop11h 04m

Toronto Pearson Intl

Thu 4/12

23:00-11:20

Nonstop7h 20m

£365

Flights are sorted by cheapest return flights first.

Deals found on 15/9

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 16 September 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 16 September 2025.

The most flights from LHR to CAON are scheduled on a Tuesday (39 on average). You will have fewer flight options on Thursday, which is when the least amount of flights are scheduled (32 on average).

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 16 September 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.
Air France
7.4
Good
1,469 reviews
Check prices

Food

7.0

Entertainment

7.0

Overall

7.4

Crew

8.2

Boarding

7.4

Comfort

7.4

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.
Air France
7.4
Good
1,469 reviews
Air France
7.4
Good
1,469 reviews
Check prices

Food

7.0

Entertainment

7.0

Overall

7.4

Crew

8.2

Boarding

7.4

Comfort

7.4

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.
Virgin Atlantic
7.4
Good
664 reviews
Air France
7.4
Good
1,469 reviews
Check prices

Food

7.0

Entertainment

7.0

Overall

7.4

Crew

8.2

Boarding

7.4

Comfort

7.4

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.
Air Canada
7.1
Good
10,000 reviews
Air France
7.4
Good
1,469 reviews
Check prices

Food

7.0

Entertainment

7.0

Overall

7.4

Crew

8.2

Boarding

7.4

Comfort

7.4

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.
Lufthansa
6.8
Okay
7,407 reviews
Air France
7.4
Good
1,469 reviews
Check prices

Food

7.0

Entertainment

7.0

Overall

7.4

Crew

8.2

Boarding

7.4

Comfort

7.4

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.
British Airways
6.7
Okay
7,361 reviews
Air France
7.4
Good
1,469 reviews
Check prices

Food

7.0

Entertainment

7.0

Overall

7.4

Crew

8.2

Boarding

7.4

Comfort

7.4

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 Air Canada, Lufthansa, and United Airlines fly from London Heathrow Airport to Region of Ontario in about 14h 53m. The time it takes to get you to your destination can typically vary by up to 50m. 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 cheapest airlines to fly from London Heathrow Airport to Region of Ontario one-way?

    To fly one-way, consider booking your trip with Virgin Atlantic, which is currently one of the cheapest options available, starting at £263. TAP AIR PORTUGAL flights start at £265 while deals on KLM start at £269 one-way.

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

    The most popular flight routes from London Heathrow Airport to Region of Ontario are London Heathrow - Toronto Pearson Intl, London Heathrow - Toronto Island and London Heathrow - Montreal Pierre Elliott Trudeau Intl.

  • 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 (77%), KLM (77%) and Air France (77%).

  • 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 £1,115, our data indicates the cheapest price to be £349. The most popular route (London Heathrow - Toronto Pearson Intl), is priced around £294.

  • 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.
Heathrow to Pearson Intl flights
Heathrow to Vancouver Intl flights
Gatwick to Pearson Intl flights
Heathrow to Toronto Island flights
London City to Pearson Intl flights
Gatwick to Vancouver Intl flights
Heathrow to Calgary flights
Heathrow to Pierre Elliott Trudeau Intl flights
Luton to Pearson Intl flights
London City to Vancouver Intl flights
Stansted to Pearson Intl flights
Heathrow to Abbotsford flights
Gatwick to Toronto Island flights
Heathrow to Halifax flights
Gatwick to Calgary flights
London City to Pierre Elliott Trudeau Intl flights
Gatwick to Pierre Elliott Trudeau Intl flights
London City to Calgary flights
Luton to Pierre Elliott Trudeau Intl flights
Stansted to Vancouver Intl flights
Heathrow to Edmonton flights
Heathrow to Ottawa flights
Stansted to Pierre Elliott Trudeau Intl flights
Gatwick to Halifax flights
Gatwick to Edmonton flights
Gatwick to Ottawa flights
London City to Halifax flights
Luton to Calgary flights
London City to Abbotsford flights
London City to Ottawa flights
Heathrow to Winnipeg flights
Luton to Halifax flights
Stansted to Halifax flights
London City to Edmonton flights
Gatwick to Abbotsford flights
Luton to Vancouver Intl flights
Heathrow to Québec City flights
Stansted to Calgary flights
Heathrow to Victoria flights
Gatwick to Winnipeg flights
Heathrow to St. John's flights
Gatwick to Québec City flights
Gatwick to St. John's flights
Southend to Pearson Intl flights
London City to Québec City flights
Heathrow to Windsor flights
Heathrow to Saskatoon flights
Gatwick to Victoria 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 858,174 searches. Data last updated 16 September 2025.
AirlineCheapestAverageFlexibilityOn-time
LufthansaCheapest£295Average£505FlexibilityNo cancel feeOn-time76%
Search Lufthansa flights
Scandinavian AirlinesCheapest£295Average£441FlexibilityNo cancel feeOn-time77%
Search Scandinavian Airlines flights
Aer LingusCheapest£297Average£504FlexibilityNo cancel feeOn-timeN/A
Search Aer Lingus flights
TAP AIR PORTUGALCheapest£303Average£524FlexibilityNo cancel feeOn-timeN/A
Search TAP AIR PORTUGAL flights
Air TransatCheapest£306Average£432FlexibilityNo cancel feeOn-time50%
Search Air Transat flights
Air CanadaCheapest£309Average£533FlexibilityNo cancel feeOn-time67%
Search Air Canada flights
DeltaCheapest£315Average£493FlexibilityNo cancel feeOn-timeN/A
Search Delta flights
IcelandairCheapest£316Average£372FlexibilityNo cancel feeOn-time76%
Search Icelandair flights
Virgin AtlanticCheapest£325Average£440FlexibilityNo cancel feeOn-time72%
Search Virgin Atlantic flights
KLMCheapest£333Average£455FlexibilityNo cancel feeOn-time75%
Search KLM flights

Fly with Cheapflights

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

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Millions of users choose and trust Cheapflights to book the best flight deals from Heathrow to Ontario for free. We help you search and compare prices from hundreds of airlines for the right flight just for you.

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.

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

Of course! You can now track prices for flights from Heathrow to Ontario and get an alert from Cheapflights when they change. Have a valid email address ready and click the bell icon next to the flight deals above to set up your price alerts.

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