Find flights
Deals
Airlines
FAQs

Cheap flights from Ontario to London Heathrow Airport from £198

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 12/1. Fares are subject to change and may not be available on all flights or dates of travel.
YYZ — LHR
6 Nov — 13 Nov1
1 adult

Find flight deals from Ontario to Heathrow

Cheapest flights from Ontario to Heathrow
Explore the most affordable flight options available from Ontario to Heathrow. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 1 November 2024.

Fri 22/1118:20YHM - LHR
2 stops21h 45mMultiple Airlines
Mon 25/1107:50LHR - YHM
2 stops14h 20mMultiple Airlines
Deal found 30/10£374
Mon 18/1119:45YYZ - LHR
1 stop10h 05mIcelandair
Wed 4/1212:05LHR - YYZ
1 stop11h 10mIcelandair
Deal found 31/10£406
Wed 4/1222:45YYZ - LHR
1 stop17h 50mTAP AIR PORTUGAL
Mon 9/1218:30LHR - YYZ
1 stop25h 15mTAP AIR PORTUGAL
Deal found 30/10£407
Mon 11/1120:10YYZ - LHR
Nonstop7h 20mMultiple Airlines
Tue 26/1109:30LHR - YYZ
1 stop11h 45mMultiple Airlines
Deal found 31/10£410
Tue 12/1118:00YYZ - LHR
Nonstop7h 15mBritish Airways
Wed 20/1115:35LHR - YYZ
1 stop11h 16mBritish Airways
Deal found 31/10£421
Mon 11/1120:10YYZ - LHR
Nonstop7h 20mAir Canada
Tue 26/1111:10LHR - YYZ
Nonstop8h 40mAir Canada
Deal found 31/10£424
Tue 12/1117:35YYZ - LHR
1 stop11h 45mAer Lingus
Wed 20/1109:50LHR - YYZ
1 stop11h 00mAer Lingus
Deal found 31/10£435
Sun 10/1112:20YYZ - LHR
1 stop13h 30mVirgin Atlantic
Tue 10/1210:00LHR - YYZ
1 stop14h 15mVirgin Atlantic
Deal found 31/10£438
Mon 2/1217:25YTZ - LHR
2 stops14h 35mMultiple Airlines
Mon 9/1211:10LHR - YTZ
2 stops15h 40mMultiple Airlines
Deal found 30/10£441
Sat 16/1120:10YYZ - LHR
Nonstop7h 20mLufthansa
Sun 24/1115:00LHR - YYZ
Nonstop8h 15mLufthansa
Deal found 30/10£441
Fri 6/1218:35YYZ - LHR
1 stop10h 55mDelta
Wed 11/1214:45LHR - YYZ
1 stop11h 40mDelta
Deal found 31/10£448
Wed 20/1118:05YYZ - LHR
1 stop12h 05mKLM
Thu 28/1111:45LHR - YYZ
1 stop12h 30mKLM
Deal found 31/10£455

Find flights from Ontario to Heathrow within your budget

Customise your flight search to find flights from Ontario to Heathrow 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 1,010,473 searches. Data last updated 1 November 2024.

Fly from

Any airport

Fly to

Any airport

Route

Depart

Return

Price

HamiltonLondon

YHM - LHR

YHMLHR

Hamilton

Sun 12/1

18:20-10:50

1 stop11h 30m

£198

OttawaLondon

YOW - LHR

YOWLHR

Ottawa

Sat 30/11

06:15-12:50

1 stop25h 35m

£203

TorontoLondon

YYZ - LHR

YYZLHR

Toronto Pearson Intl

Sun 24/11

19:45-10:50

1 stop10h 05m

£236

TorontoLondon

YYZ - LHR

YYZLHR

Toronto Pearson Intl

Sun 17/11

22:45-17:30

1 stop13h 45m

£237

TorontoLondon

YYZ - LHR

YYZLHR

Toronto Pearson Intl

Wed 6/11

21:05-12:40

2 stops34h 35m

£296

TorontoLondon

YYZ - LHR

YYZLHR

Toronto Pearson Intl

Wed 1/1

17:35-09:05

1 stop10h 30m

£317

OttawaLondon

YOW - LHR

YOWLHR

Ottawa

Sat 30/11

19:00-12:50

1 stop36h 50m

£206

MontrealLondon

YUL - LHR

YULLHR

Montreal Pierre Elliott Trudeau Intl

Tue 12/11

20:35-15:50

1 stop14h 15m

£418

TorontoLondon

YTZ - LHR

YTZLHR

Toronto Island

Sun 1/12

10:25-07:10

1 stop15h 45m

£438

TorontoLondon

YYZ - LHR

YYZLHR

Toronto Pearson Intl

Thu 21/11

16:00-12:50

1 stop15h 50m

£227

Flights are sorted by cheapest first

Deals found on 31/10

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

Best time to book a flight from Ontario to Heathrow

Have a flexible travel schedule? Discover the best time to fly to Heathrow from Ontario 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 Ontario to Heathrow

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

What is the cheapest month to book a flight from Region of Ontario to London Heathrow Airport?

Currently, January is the cheapest month in which you can book a flight from Region of Ontario to London Heathrow Airport (average of £112). Flying from Region of Ontario to London Heathrow Airport in July is currently the most expensive (average of £159). 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 ON to LHR?

Find hourly flight availability from Ontario to Heathrow. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated 1 November 2024.

When flying from Region of Ontario to London Heathrow Airport, the time of day you decide to fly out makes little to no difference towards the overall price you’ll pay on tickets.

Rainfall in Heathrow by month

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

In terms of precipitation, rainfall in London Heathrow Airport ranges from 40.0 - 70.0 inches per month. January is typically the wettest month, when rainfall can reach 70.0 mm. July is typically the driest time to visit London Heathrow Airport when rainfall is around 40.0 mm.

Temperature in Heathrow by month

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

If weather is an important factor for your trip to London Heathrow Airport, 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 17.0 C. Travellers hoping to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 4.0 C).

Reviews of airlines servicing Heathrow

Get insights into the airlines that provide service to Heathrow. 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 Heathrow. Reviews last updated 1 November 2024.
Read through reviews of airlines operating flights from Ontario to London, such as Delta, British Airways and Air France. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
Delta
8.0
Very Good
8,835 reviews
Check prices

Overall

8.0

Food

7.3

Comfort

7.9

Boarding

8.2

Entertainment

7.9

Crew

8.5

Reviews

1 / 10

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.

Delta
8.0
Very Good
8,835 reviews
Delta
8.0
Very Good
8,835 reviews
Check prices

Overall

8.0

Food

7.3

Comfort

7.9

Boarding

8.2

Entertainment

7.9

Crew

8.5

Reviews

1 / 10

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.

KLM
7.8
Good
1,349 reviews
Delta
8.0
Very Good
8,835 reviews
Check prices

Overall

8.0

Food

7.3

Comfort

7.9

Boarding

8.2

Entertainment

7.9

Crew

8.5

Reviews

1 / 10

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.

Finnair
7.7
Good
1,318 reviews
Delta
8.0
Very Good
8,835 reviews
Check prices

Overall

8.0

Food

7.3

Comfort

7.9

Boarding

8.2

Entertainment

7.9

Crew

8.5

Reviews

1 / 10

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.

Austrian Airlines
7.7
Good
829 reviews
Delta
8.0
Very Good
8,835 reviews
Check prices

Overall

8.0

Food

7.3

Comfort

7.9

Boarding

8.2

Entertainment

7.9

Crew

8.5

Reviews

1 / 10

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.

SWISS
7.6
Good
1,644 reviews
Delta
8.0
Very Good
8,835 reviews
Check prices

Overall

8.0

Food

7.3

Comfort

7.9

Boarding

8.2

Entertainment

7.9

Crew

8.5

Reviews

1 / 10

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.

Related info for your journey

Find useful and relevant information for your journey from Ontario to Heathrow. 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 Region of Ontario to London Heathrow Airport one-way?

    £203 is the cheapest one-way deal found within the past few days, from WestJet. You may also be able to find cheap deals on Icelandair and TAP AIR PORTUGAL, with prices starting from £236 and £237, respectively.

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

    When deciding which route to take from Region of Ontario to London Heathrow Airport consider Toronto Pearson Intl - London Heathrow, Montreal Pierre Elliott Trudeau Intl - London Heathrow or Toronto Island - London Heathrow as they are the most popular.

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

    No one likes to see their flight delayed. When booking a flight from Region of Ontario to London Heathrow Airport consider choosing American Airlines (69%), Aer Lingus (69%) or Finnair (69%) as they are the most reliable in getting you off to your destination on time.

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

    Looking for the cheapest flight from Region of Ontario to London Heathrow Airport? While on average our users pay £1,057, our data indicates the cheapest price to be £423. The most popular route (Toronto Pearson Intl - London Heathrow), is priced around £343.

  • Can I find deals for flights from Ontario to Heathrow that include hotel bookings?

    Yes. In addition to deals on Ontario to Heathrow flights, Cheapflights offers holiday packages that include both flights and hotel.

  • How can I find direct flights from Ontario to Heathrow?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Ontario to Heathrow.

  • Can I find deals for business class flights from Ontario to Heathrow?

    Yes. Cheapflights offers flight deals from Ontario to Heathrow 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 Region of Ontario to London Heathrow Airport?

    Currently, January is the cheapest month in which you can book a flight from Region of Ontario to London Heathrow Airport (average of £112). Flying from Region of Ontario to London Heathrow Airport in July is currently the most expensive (average of £159). 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 Ontario to Heathrow

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

Top 10 airlines flying from Ontario to Heathrow

Discover the top 10 airlines that operate flights from Ontario to Heathrow. 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 1,010,473 searches. Data last updated 1 November 2024.
AirlineCheapestAverageFlexibilityOn-time
Aer LingusCheapest£343Average£442FlexibilityNo cancel feeOn-timeN/A
Search Aer Lingus flights
IcelandairCheapest£347Average£494FlexibilityNo cancel feeOn-time76%
Search Icelandair flights
Air TransatCheapest£388Average£498FlexibilityNo cancel feeOn-time50%
Search Air Transat flights
Air CanadaCheapest£417Average£583FlexibilityNo cancel feeOn-time67%
Search Air Canada flights
LufthansaCheapest£429Average£586FlexibilityNo cancel feeOn-time76%
Search Lufthansa flights
Virgin AtlanticCheapest£438Average£469FlexibilityNo cancel feeOn-time72%
Search Virgin Atlantic flights
British AirwaysCheapest£451Average£615FlexibilityNo cancel feeOn-time70%
Search British Airways flights
KLMCheapest£454Average£624FlexibilityNo cancel feeOn-time75%
Search KLM flights
FinnairCheapest£515Average£570FlexibilityNo cancel feeOn-time76%
Search Finnair flights
Air FranceCheapest£532Average£535FlexibilityNo cancel feeOn-time77%
Search Air France 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 Ontario to Heathrow?

Cheapflights makes it easy to find Ontario to Heathrow flights by helping our users search from 900+ travel sites for deals. We also provide you with filters for cabin, price, airline, airports, number of stops, and many more to narrow down that perfect flight.

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

Cheapflights taps into our reliable network of hundreds of airlines and travel agencies to find the best deals for flights from Ontario to Heathrow for you. Better yet — we are completely free to use.

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

Users can book flights with no change fees policies with our dedicated filters. Book flights from Ontario to Heathrow flexibly with Cheapflights today.

Can Cheapflights notify me if prices for flights from Ontario to Heathrow 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.
View all available airlines