Find flights
Deals
When to book
Airlines
FAQs

Cheap flights from London Heathrow Airport to Ontario from £229

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 10/2. Fares are subject to change and may not be available on all flights or dates of travel.
LHR — YYZ
22 Jan — 29 Jan1
1 adult

Cheap flight deals from Heathrow to Ontario

Discover tips and strategies to find the most affordable flight options for your journey from Heathrow (LHR) to Ontario (CAON). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated 17 January 2025.

Round-trip from

£364

One-way from

£229
SWISS
  • SWISS
  • 27/1-3/2
  • 4 total stops
  • 40h 05m total
  • London to Ontario
Search Deals
10/2
  • 10/2
  • 2 total stops
  • 15h 05m total
  • London 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 17 January 2025.

Mon 27/108:55LHR - YYZ
2 stops14h 10mSWISS
Mon 17/220:30YYZ - LHR
1 stop11h 30mSWISS
Deal found 15/1£364
Thu 6/208:55LHR - YTZ
2 stops17h 55mAir Canada
Mon 10/215:25YTZ - LHR
1 stop10h 45mAir Canada
Deal found 15/1£364
Thu 13/206:30LHR - YYZ
1 stop11h 50mLufthansa
Thu 20/214:00YYZ - LHR
1 stop12h 10mLufthansa
Deal found 16/1£366
Wed 5/220:40LHR - YYZ
1 stop26h 35mIcelandair
Fri 28/320:45YYZ - LHR
1 stop10h 05mIcelandair
Deal found 16/1£367
Mon 17/315:00LHR - YTZ
1 stop10h 50mLufthansa
Wed 26/312:25YTZ - LHR
1 stop14h 45mLufthansa
Deal found 15/1£368
Sun 9/219:25LHR - YYZ
1 stop24h 10mAir Canada
Sun 16/220:10YYZ - LHR
Nonstop7h 20mAir Canada
Deal found 16/1£371
Thu 20/306:00LHR - YYZ
2 stops21h 50mAustrian Airlines
Sun 23/323:30YYZ - LHR
2 stops34h 35mAustrian Airlines
Deal found 15/1£377
Wed 19/211:45LHR - YYZ
Nonstop8h 10mBritish Airways
Wed 1/1018:05YYZ - LHR
Nonstop7h 10mBritish Airways
Deal found 15/1£380
Thu 23/111:45LHR - YYZ
1 stop12h 30mVirgin Atlantic
Wed 29/118:35YYZ - LHR
1 stop14h 10mVirgin Atlantic
Deal found 15/1£380
Tue 29/417:50LHR - YYZ
Nonstop7h 50mDelta
Wed 7/522:30YYZ - LHR
Nonstop7h 10mDelta
Deal found 15/1£383
Wed 12/211:10LHR - YYZ
2 stops16h 39mUnited Airlines
Wed 26/215:00YYZ - LHR
1 stop10h 20mUnited Airlines
Deal found 15/1£392
Sat 1/315:00LHR - YTZ
1 stop11h 50mMultiple Airlines
Sat 8/319:20YTZ - LHR
2 stops44h 15mMultiple Airlines
Deal found 15/1£398

Find flights from Heathrow to Ontario within your budget

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 17 January 2025.

Fly from

Any airport

Fly to

Any airport

Route

Depart

Return

Price

LondonToronto

LHR - YYZ

LHRYYZ

London Heathrow

Tue 18/2

17:25-18:35

2 stops30h 10m

Toronto Pearson Intl

Tue 4/3

14:00-08:05

2 stops13h 05m

£364

LondonToronto

LHR - YTZ

LHRYTZ

London Heathrow

Thu 6/2

08:55-08:10

2 stops28h 15m

Toronto Island

Mon 10/2

08:50-07:10

2 stops17h 20m

£364

LondonToronto

LHR - YYZ

LHRYYZ

London Heathrow

Thu 13/2

06:30-13:20

1 stop11h 50m

Toronto Pearson Intl

Thu 20/2

14:00-07:10

1 stop12h 10m

£366

LondonToronto

LHR - YTZ

LHRYTZ

London Heathrow

Tue 4/2

15:00-21:50

1 stop11h 50m

Toronto Island

Tue 18/2

12:25-07:10

1 stop13h 45m

£366

LondonToronto

LHR - YYZ

LHRYYZ

London Heathrow

Wed 5/2

20:40-18:15

1 stop26h 35m

Toronto Pearson Intl

Sun 30/3

20:50-11:55

1 stop10h 05m

£367

LondonToronto

LHR - YTZ

LHRYTZ

London Heathrow

Tue 25/2

19:30-19:50

2 stops29h 20m

Toronto Island

Tue 6/5

17:25-21:30

2 stops23h 05m

£368

LondonToronto

LHR - YYZ

LHRYYZ

London Heathrow

Fri 7/2

19:25-14:35

1 stop24h 10m

Toronto Pearson Intl

Mon 10/2

20:10-08:30

Nonstop7h 20m

£371

LondonToronto

LHR - YYZ

LHRYYZ

London Heathrow

Mon 10/2

06:00-14:35

1 stop13h 35m

Toronto Pearson Intl

Mon 17/2

21:25-18:40

2 stops16h 15m

£378

LondonToronto

LHR - YYZ

LHRYYZ

London Heathrow

Thu 13/2

17:05-20:15

Nonstop8h 10m

Toronto Pearson Intl

Thu 20/2

17:40-05:55

Nonstop7h 15m

£393

LondonToronto

LHR - YYZ

LHRYYZ

London Heathrow

Wed 19/2

09:30-21:17

2 stops16h 47m

Toronto Pearson Intl

Wed 5/3

14:00-06:20

1 stop11h 20m

£394

Flights are sorted by cheapest return flights first.

Deals found on 16/1

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 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.

Travel insights for flights from Heathrow to Ontario

Get recent, data-driven insights about flights from Heathrow to Ontario including ideal travel times, pricing trends, and more.

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 17 January 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 17 January 2025.

The most flights from LHR to CAON are scheduled on a Tuesday (30 on average). You will have fewer flight options on Sunday, which is when the least amount of flights are scheduled (17 on average).

Rainfall in Ontario by month

Plan your trip to Ontario by taking into account the average rainfall totals by month.

In terms of precipitation, rainfall in Region of Ontario ranges from 51.0 - 83.0 inches per month. June is typically the wettest month, when rainfall can reach 83.0 mm. February is typically the driest time to visit Region of Ontario when rainfall is around 51.0 mm.

Temperature in Ontario by month

Plan your trip to Ontario by taking into account the average temperature totals by month.

If weather is an important factor for your trip to Region of Ontario, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 21.0 C. Travellers hoping to avoid the cold should look outside of January, when temperatures are typically at their lowest (around -6.0 C).

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 17 January 2025.
Read reviews from past customers who have flown WestJet, Austrian Airlines and British Airways from London to Ontario. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.
Aegean Airlines
8.1
Very Good
739 reviews
Check prices

Crew

8.6

Food

7.3

Overall

8.1

Entertainment

6.9

Comfort

7.8

Boarding

7.8

Reviews

1 / 10

I am very proud of them. Everything was very nice everything thank you

Aegean Airlines
8.1
Very Good
739 reviews
Aegean Airlines
8.1
Very Good
739 reviews
Check prices

Crew

8.6

Food

7.3

Overall

8.1

Entertainment

6.9

Comfort

7.8

Boarding

7.8

Reviews

1 / 10

I am very proud of them. Everything was very nice everything thank you

Delta
8.0
Very Good
8,512 reviews
Aegean Airlines
8.1
Very Good
739 reviews
Check prices

Crew

8.6

Food

7.3

Overall

8.1

Entertainment

6.9

Comfort

7.8

Boarding

7.8

Reviews

1 / 10

I am very proud of them. Everything was very nice everything thank you

KLM
7.8
Good
1,339 reviews
Aegean Airlines
8.1
Very Good
739 reviews
Check prices

Crew

8.6

Food

7.3

Overall

8.1

Entertainment

6.9

Comfort

7.8

Boarding

7.8

Reviews

1 / 10

I am very proud of them. Everything was very nice everything thank you

LOT
7.6
Good
1,112 reviews
Aegean Airlines
8.1
Very Good
739 reviews
Check prices

Crew

8.6

Food

7.3

Overall

8.1

Entertainment

6.9

Comfort

7.8

Boarding

7.8

Reviews

1 / 10

I am very proud of them. Everything was very nice everything thank you

Finnair
7.6
Good
1,285 reviews
Aegean Airlines
8.1
Very Good
739 reviews
Check prices

Crew

8.6

Food

7.3

Overall

8.1

Entertainment

6.9

Comfort

7.8

Boarding

7.8

Reviews

1 / 10

I am very proud of them. Everything was very nice everything thank you

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.

  • 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 WestJet, which is currently one of the cheapest options available, starting at £270. TAP AIR PORTUGAL flights start at £313 while deals on Aer Lingus start at £349 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 (92%), Ethiopian Air (90%) and SriLankan Airlines (87%).

  • 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 £1,175, our data indicates the cheapest price to be £375. The most popular route (London Heathrow - Toronto Pearson Intl), is priced around £301.

  • 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

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 Vancouver Intl flights
Heathrow to Pearson Intl flights
Gatwick to Pearson Intl flights
Gatwick to Vancouver Intl flights
Heathrow to Toronto Island flights
London City to Pearson Intl flights
London City to Vancouver Intl flights
Heathrow to Pierre Elliott Trudeau Intl flights
Heathrow to Calgary flights
Heathrow to Abbotsford flights
Luton to Pearson Intl flights
Heathrow to Halifax flights
Stansted to Pearson Intl flights
Gatwick to Pierre Elliott Trudeau Intl flights
London City to Pierre Elliott Trudeau Intl flights
Gatwick to Calgary flights
Gatwick to Toronto Island flights
London City to Calgary flights
Luton to Pierre Elliott Trudeau Intl flights
Heathrow to Ottawa flights
Heathrow to Hamilton flights
Luton to Calgary flights
Gatwick to Halifax flights
Heathrow to Edmonton flights
Gatwick to Ottawa flights
London City to Halifax flights
Heathrow to Victoria flights
Stansted to Pierre Elliott Trudeau Intl flights
Gatwick to Hamilton flights
Heathrow to Winnipeg flights
London City to Ottawa flights
Luton to Vancouver Intl flights
London City to Victoria flights
Gatwick to Winnipeg flights
Stansted to Calgary flights
Gatwick to Edmonton flights
Southend to Pearson Intl flights
London City to Winnipeg flights
Stansted to Vancouver Intl flights
Gatwick to Abbotsford flights
Gatwick to Victoria flights
Gatwick to St. John's flights
Heathrow to Kelowna flights
Heathrow to St. John's flights
London City to Saskatoon flights
Heathrow to Comox flights
Heathrow to Saskatoon flights
Heathrow to London 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 17 January 2025.
AirlineCheapestAverageFlexibilityOn-time
Air TransatCheapest£262Average£741FlexibilityNo cancel feeOn-time50%
Search Air Transat flights
LufthansaCheapest£276Average£604FlexibilityNo cancel feeOn-time76%
Search Lufthansa flights
PLAYCheapest£277Average£395FlexibilityNo cancel feeOn-timeN/A
Search PLAY flights
IberiaCheapest£330Average£669FlexibilityNo cancel feeOn-time77%
Search Iberia flights
IcelandairCheapest£357Average£521FlexibilityNo cancel feeOn-time76%
Search Icelandair flights
Virgin AtlanticCheapest£361Average£485FlexibilityNo cancel feeOn-time72%
Search Virgin Atlantic flights
TAP AIR PORTUGALCheapest£362Average£604FlexibilityNo cancel feeOn-timeN/A
Search TAP AIR PORTUGAL flights
Scandinavian AirlinesCheapest£382Average£594FlexibilityNo cancel feeOn-time77%
Search Scandinavian Airlines flights
British AirwaysCheapest£392Average£622FlexibilityNo cancel feeOn-time70%
Search British Airways flights
KLMCheapest£397Average£511FlexibilityNo cancel feeOn-time75%
Search KLM flights

Fly with Cheapflights

Find the best flight deals on Cheapflights, where travellers 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?

900+ travel sites are searched through when a user searches for a flight using Cheapflights. From the search interface, users can use filters to choose airlines, airports, flight times, cabin classes and more to their preference. Book your flight to Ontario from Heathrow today with Cheapflights!

Why should you use Cheapflights to find cheap flight tickets from Heathrow to Ontario?

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.

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.