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Cheap flights from London Heathrow Airport to Ontario from C$ 397

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 1/2. Fares are subject to change and may not be available on all flights or dates of travel.
LHR — YYZ
26 Jan — 2 Feb1
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 21 January 2025.

Round-trip from

C$ 617

One-way from

C$ 397

Good round-trip deal

C$ 750 or less

Good one-way deal

C$ 785 or less
5/3-12/3
  • 5/3-12/3
  • 4 total stops
  • 33h 05m total
  • London to Ontario
1/2
  • 1/2
  • 1 total stop
  • 25h 30m total
  • London to Ontario
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 21 January 2025.

Wed 5/36:20 a.m.LHR - YHM
2 stops15h 50mMultiple Airlines
Wed 12/37:20 p.m.YHM - LHR
2 stops17h 15mMultiple Airlines
Deal found 20/1C$ 617
Tue 28/12:30 p.m.LHR - YYZ
Nonstop8h 15mAir Canada
Sun 9/26:50 p.m.YYZ - LHR
1 stop20h 45mAir Canada
Deal found 21/1C$ 623
Fri 25/45:50 p.m.LHR - YYZ
Nonstop7h 50mVirgin Atlantic
Sun 27/410:30 p.m.YYZ - LHR
Nonstop7h 10mVirgin Atlantic
Deal found 21/1C$ 626
Tue 18/37:30 p.m.LHR - YYZ
1 stop29h 25mLufthansa
Mon 24/35:00 p.m.YYZ - LHR
1 stop10h 10mLufthansa
Deal found 21/1C$ 627
Thu 22/54:35 p.m.LHR - YYZ
1 stop33h 25mTAP AIR PORTUGAL
Sun 25/511:00 p.m.YYZ - LHR
1 stop18h 55mTAP AIR PORTUGAL
Deal found 21/1C$ 635
Thu 5/69:25 p.m.LHR - YYZ
1 stop26h 45mIcelandair
Sun 8/68:50 p.m.YYZ - LHR
1 stop10h 05mIcelandair
Deal found 21/1C$ 638
Thu 6/36:00 a.m.LHR - YTZ
2 stops18h 50mAir Canada
Thu 13/312:25 p.m.YTZ - LHR
2 stops18h 50mAir Canada
Deal found 20/1C$ 638
Wed 5/33:00 p.m.LHR - YTZ
1 stop11h 50mMultiple Airlines
Tue 11/33:25 p.m.YTZ - LHR
1 stop11h 45mMultiple Airlines
Deal found 20/1C$ 649
Tue 9/92:05 p.m.LHR - YTZ
2 stops11h 31mLufthansa
Tue 16/94:20 p.m.YTZ - LHR
2 stops12h 40mLufthansa
Deal found 20/1C$ 652
Fri 25/48:45 a.m.LHR - YYZ
1 stop12h 35mSWISS
Mon 5/58:15 p.m.YYZ - LHR
1 stop15h 10mSWISS
Deal found 20/1C$ 658
Mon 17/26:00 a.m.LHR - YYZ
1 stop13h 35mAustrian Airlines
Mon 24/29:25 p.m.YYZ - LHR
2 stops16h 15mAustrian Airlines
Deal found 20/1C$ 662
Sun 11/57:30 p.m.LHR - YYZ
1 stop25h 50mMultiple Airlines
Sat 24/56:25 p.m.YYZ - LHR
Nonstop7h 10mMultiple Airlines
Deal found 20/1C$ 685

Find flights from Heathrow to Ontario within your budget

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 21 January 2025.

Fly from

Any airport

Fly to

Any airport

Route

Depart

Return

Price

LondonHamilton

LHR - YHM

LHRYHM

London Heathrow

Wed 5/3

6:20 a.m.-5:10 p.m.

2 stops15h 50m

Hamilton

Wed 12/3

7:20 p.m.-4:35 p.m.

2 stops17h 15m

C$ 617

LondonToronto

LHR - YYZ

LHRYYZ

London Heathrow

Tue 18/3

7:25 p.m.-11:50 p.m.

2 stops32h 25m

Toronto Pearson Intl

Mon 24/3

4:00 p.m.-6:40 p.m.

2 stops22h 40m

C$ 623

LondonToronto

LHR - YYZ

LHRYYZ

London Heathrow

Sat 3/5

5:50 p.m.-8:40 p.m.

Nonstop7h 50m

Toronto Pearson Intl

Sat 10/5

10:30 p.m.-10:40 a.m.

Nonstop7h 10m

C$ 625

LondonToronto

LHR - YYZ

LHRYYZ

London Heathrow

Tue 18/3

7:30 p.m.-8:55 p.m.

1 stop29h 25m

Toronto Pearson Intl

Mon 24/3

5:00 p.m.-7:10 a.m.

1 stop10h 10m

C$ 627

LondonToronto

LHR - YYZ

LHRYYZ

London Heathrow

Mon 3/2

7:00 a.m.-6:35 p.m.

2 stops16h 35m

Toronto Pearson Intl

Mon 17/2

8:30 p.m.-11:15 a.m.

1 stop33h 45m

C$ 632

LondonToronto

LHR - YYZ

LHRYYZ

London Heathrow

Thu 6/2

8:55 a.m.-4:20 p.m.

1 stop12h 25m

Toronto Pearson Intl

Mon 10/2

12:00 p.m.-7:10 a.m.

1 stop14h 10m

C$ 636

LondonToronto

LHR - YYZ

LHRYYZ

London Heathrow

Thu 5/6

9:25 p.m.-7:10 p.m.

1 stop26h 45m

Toronto Pearson Intl

Sun 8/6

8:50 p.m.-11:55 a.m.

1 stop10h 05m

C$ 638

LondonToronto

LHR - YTZ

LHRYTZ

London Heathrow

Thu 6/3

6:00 a.m.-7:50 p.m.

2 stops18h 50m

Toronto Island

Thu 13/3

12:25 p.m.-11:15 a.m.

2 stops18h 50m

C$ 638

LondonToronto

LHR - YTZ

LHRYTZ

London Heathrow

Wed 5/3

3:00 p.m.-9:50 p.m.

1 stop11h 50m

Toronto Island

Tue 11/3

3:25 p.m.-7:10 a.m.

1 stop11h 45m

C$ 649

LondonToronto

LHR - YTZ

LHRYTZ

London Heathrow

Tue 28/1

3:00 p.m.-9:50 p.m.

1 stop11h 50m

Toronto Island

Sun 9/2

8:25 p.m.-7:10 a.m.

1 stop29h 45m

C$ 652

Flights are sorted by cheapest round-trip flights first.

Deals found on 20/1

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 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.

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 C$ 168). Flying from London Heathrow Airport to Region of Ontario in July is currently the most expensive (average of C$ 258). 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 21 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 21 January 2025.

The most flights from LHR to CAON are scheduled on a Tuesday (30 on average). You will have fewer flight options on Wednesday, which is when the least amount of flights are scheduled (18 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 mm 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 21 January 2025.
Read through reviews of airlines operating flights from London to Ontario, such as Austrian Airlines, Lufthansa and Air France. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
8.0
Very good
8,521 reviews

Crew

8.6

Entertainment

7.9

Overall

8.0

Boarding

8.2

Food

7.3

Comfort

8.0

Reviews

1 / 10

Delta One is very poor quality seating for first class. On multiple trips pieces have come off the seat. Staff and food have been good

8.0
Very good
8,521 reviews
8.0
Very good
8,521 reviews

Crew

8.6

Entertainment

7.9

Overall

8.0

Boarding

8.2

Food

7.3

Comfort

8.0

Reviews

1 / 10

Delta One is very poor quality seating for first class. On multiple trips pieces have come off the seat. Staff and food have been good

7.8
Good
1,341 reviews
8.0
Very good
8,521 reviews

Crew

8.6

Entertainment

7.9

Overall

8.0

Boarding

8.2

Food

7.3

Comfort

8.0

Reviews

1 / 10

Delta One is very poor quality seating for first class. On multiple trips pieces have come off the seat. Staff and food have been good

7.6
Good
1,117 reviews
8.0
Very good
8,521 reviews

Crew

8.6

Entertainment

7.9

Overall

8.0

Boarding

8.2

Food

7.3

Comfort

8.0

Reviews

1 / 10

Delta One is very poor quality seating for first class. On multiple trips pieces have come off the seat. Staff and food have been good

7.6
Good
1,286 reviews
8.0
Very good
8,521 reviews

Crew

8.6

Entertainment

7.9

Overall

8.0

Boarding

8.2

Food

7.3

Comfort

8.0

Reviews

1 / 10

Delta One is very poor quality seating for first class. On multiple trips pieces have come off the seat. Staff and food have been good

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?

    One-way options have recently been found by users for as low as C$ 509 on WestJet. Other airlines that offer cheap prices include Virgin Atlantic from C$ 515 and TAP AIR PORTUGAL from C$ 517 one-way.

  • 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?

    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: Thai Airways (92%), Ethiopian Air (90%), SriLankan Airlines (87%).

  • 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$ 2,013, our data shows the cheapest flight currently is C$ 684. When looking at the most popular route, (London Heathrow - Toronto Pearson Intl), you can expect to pay C$ 528 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, January is the cheapest month in which you can book a flight from London Heathrow Airport to Region of Ontario (average of C$ 168). Flying from London Heathrow Airport to Region of Ontario in July is currently the most expensive (average of C$ 258). 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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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 21 January 2025.
AirlineCheapestAverageFlexibilityOn-time
PLAYCheapestC$ 361AverageC$ 874FlexibilityNo cancel feeOn-timeN/A
Search PLAY flights
Air TransatCheapestC$ 620AverageC$ 861FlexibilityNo cancel feeOn-time50%
Search Air Transat flights
Aer LingusCheapestC$ 646AverageC$ 1,149FlexibilityNo cancel feeOn-timeN/A
Search Aer Lingus flights
IcelandairCheapestC$ 646AverageC$ 944FlexibilityNo cancel feeOn-time76%
Search Icelandair flights
TAP AIR PORTUGALCheapestC$ 650AverageC$ 1,027FlexibilityNo cancel feeOn-timeN/A
Search TAP AIR PORTUGAL flights
IberiaCheapestC$ 682AverageC$ 1,119FlexibilityNo cancel feeOn-time77%
Search Iberia flights
Scandinavian AirlinesCheapestC$ 688AverageC$ 1,201FlexibilityNo cancel feeOn-time77%
Search Scandinavian Airlines flights
Virgin AtlanticCheapestC$ 692AverageC$ 957FlexibilityNo cancel feeOn-time72%
Search Virgin Atlantic flights
Air CanadaCheapestC$ 698AverageC$ 1,050FlexibilityNo cancel feeOn-time67%
Search Air Canada flights
British AirwaysCheapestC$ 699AverageC$ 959FlexibilityNo cancel feeOn-time70%
Search British Airways 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!

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