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.

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.

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).

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 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.

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 most popular airlines that fly from London Heathrow Airport to Region of Ontario?

American Airlines, Air Canada and Air France are the most popular airlines when flying from London Heathrow Airport to Region of Ontario.

How far in advance should I book a flight from London Heathrow Airport to Region of Ontario?

Travelers have found it’s best to book a flight 59 days in advance to save up to 22% compared to booking the same week of travel. As your travel date approaches, the cost of this flight route may potentially increase. While opting to book 59 days out may not be an option for all, there are still additional ways to secure a deal in the near future. You might find a flight from London Heathrow Airport to Region of Ontario 1-2 weeks in advance for as low as £419, or £503 for flights within the next 24 hours.

What is the cheapest month to fly from London Heathrow Airport to Region of Ontario?

Flights from London Heathrow Airport to Region of Ontario lean towards being more expensive in December. Prices are generally better when you fly from London Heathrow Airport to Region of Ontario in February, with the cheapest ticket starting at £272.

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.

£236+ Cheap Flights from London Heathrow Airport to Ontario

Q: How much does it cost for a return flight from London Heathrow Airport to Region of Ontario?

Airfare is below average for this route at the moment. London Heathrow Airport to Region of Ontario flights typically cost between £373 and £453 in September. The cheapest return flight price found within the last 3 days was £357 on Virgin Atlantic (25 Sept-2 Oct).

Cheap flight deals from Heathrow to Ontario

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
25/9-2/10
Nonstop
15h 00m total
London to Ontario

Search Deals

16/9
3 total stops
38h 22m total
London to Ontario

Search Deals

Highest demand for flights based on searches. 3% potential increase in price (£10 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 August 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 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

Best flights from Heathrow to Ontario
Discover carefully curated flight deals from Heathrow to Ontario that have cost, travel time, and stopovers in mind to ensure you get the best travel experience. Data last updated 29 August 2025.

Tue 11/1109:30LHR - YYZ

1 stop11h 45mLufthansa

Sat 22/1117:00YYZ - LHR

1 stop9h 10mLufthansa

Deal found 27/8£358

Thu 25/917:50LHR - YYZ

Nonstop7h 50mVirgin Atlantic

Thu 2/1022:30YYZ - LHR

Nonstop7h 10mVirgin Atlantic

Deal found 29/8£358

Sat 13/906:50LHR - YTZ

2 stops12h 55mAir Canada

Wed 17/910:20YTZ - LHR

2 stops15h 10mAir Canada

Deal found 28/8£358

Tue 4/1116:10LHR - YUL

Nonstop7h 35mBritish Airways

Wed 19/1120:40YUL - LHR

Nonstop6h 50mBritish Airways

Deal found 27/8£362

Wed 12/1111:45LHR - YUL

1 stop10h 35mMultiple Airlines

Wed 19/1117:00YUL - LHR

1 stop9h 55mMultiple Airlines

Deal found 27/8£363

Fri 14/1111:45LHR - YUL

1 stop10h 35mDelta

Tue 25/1119:05YUL - LHR

1 stop10h 25mDelta

Deal found 27/8£363

Fri 17/1017:50LHR - YOW

1 stop11h 32mKLM

Wed 22/1005:55YOW - LHR

2 stops19h 30mKLM

Deal found 26/8£484

Thu 16/1006:00LHR - YOW

2 stops23h 19mAustrian Airlines

Tue 21/1019:50YOW - LHR

1 stop11h 00mAustrian Airlines

Deal found 27/8£491

Sat 11/1009:30LHR - YQT

3 stops18h 16mUnited Airlines

Sat 18/1011:00YQT - LHR

2 stops14h 20mUnited Airlines

Deal found 27/8£683

Wed 8/1014:10LHR - YHM

1 stop15h 30mWestJet

Wed 29/1018:10YHM - LHR

1 stop14h 40mWestJet

Deal found 27/8£693

Tue 11/1106:30LHR - YYZ

1 stop11h 35mLufthansa

Fri 21/1120:25YYZ - LHR

Nonstop7h 05mLufthansa

Deal found 27/8£358

Mon 22/909:30LHR - YTZ

1 stop12h 15mAir Canada

Tue 30/918:25YTZ - LHR

1 stop10h 10mAir Canada

Deal found 29/8£358

Direct flights from Heathrow to Ontario
Explore direct flight options from Heathrow to Ontario based on user searches, and compare prices and availability for your desired travel dates. Data last updated 29 August 2025.

Thu 25/917:50LHR - YYZ

Nonstop7h 50mVirgin Atlantic

Thu 2/1022:30YYZ - LHR

Nonstop7h 10mVirgin Atlantic

Deal found 28/8£357

Fri 19/916:00LHR - YYZ

Nonstop7h 55mMultiple Airlines

Mon 22/923:35YYZ - LHR

Nonstop7h 15mMultiple Airlines

Deal found 28/8£358

Sat 4/1008:30LHR - YYZ

Nonstop7h 55mAir Canada

Tue 28/1021:20YYZ - LHR

Nonstop7h 10mAir Canada

Deal found 27/8£359

Fri 12/908:30LHR - YYZ

Nonstop7h 55mAir Canada

Mon 29/923:35YYZ - LHR

Nonstop7h 15mAir Canada

Deal found 29/8£360

Thu 25/908:30LHR - YYZ

Nonstop7h 55mAir Canada

Sat 31/120:25YYZ - LHR

Nonstop7h 05mAir Canada

Deal found 28/8£360

Sat 27/908:30LHR - YYZ

Nonstop7h 55mAir Canada

Mon 6/1023:35YYZ - LHR

Nonstop7h 15mAir Canada

Deal found 28/8£361

Fri 31/1016:10LHR - YUL

Nonstop7h 35mBritish Airways

Wed 5/1120:40YUL - LHR

Nonstop6h 50mBritish Airways

Deal found 28/8£361

Tue 23/908:30LHR - YYZ

Nonstop7h 55mAir Canada

Fri 3/1021:30YYZ - LHR

Nonstop7h 30mAir Canada

Deal found 28/8£362

Tue 4/1116:10LHR - YUL

Nonstop7h 35mBritish Airways

Wed 19/1120:40YUL - LHR

Nonstop6h 50mBritish Airways

Deal found 27/8£362

Thu 2/1017:50LHR - YYZ

Nonstop7h 50mVirgin Atlantic

Wed 15/1022:30YYZ - LHR

Nonstop7h 10mVirgin Atlantic

Deal found 28/8£363

Wed 3/1214:30LHR - YYZ

Nonstop8h 30mDelta

Wed 10/1221:15YYZ - LHR

Nonstop7h 20mDelta

Deal found 28/8£364

Wed 1/1008:30LHR - YYZ

Nonstop7h 55mLufthansa

Tue 7/1021:30YYZ - LHR

Nonstop7h 30mLufthansa

Deal found 28/8£365

Last-minute flights from Heathrow to Ontario
Discover last-minute flight deals from Heathrow to Ontario. Data last updated 29 August 2025 and is based on user searches.

Wed 3/908:30LHR - YYZ

Nonstop7h 55mAir Canada

Mon 8/921:30YYZ - LHR

Nonstop7h 30mAir Canada

Deal found 27/8£359

Thu 4/909:30LHR - YTZ

1 stop10h 15mAir Canada

Tue 9/915:25YTZ - LHR

1 stop10h 05mAir Canada

Deal found 28/8£360

Fri 5/914:05LHR - YTZ

1 stop10h 44mAir Canada

Mon 8/916:10YTZ - LHR

1 stop9h 20mAir Canada

Deal found 28/8£359

Sat 6/906:50LHR - YUL

1 stop9h 45mMultiple Airlines

Thu 11/919:10YUL - LHR

1 stop20h 45mMultiple Airlines

Deal found 28/8£359

Sat 13/909:30LHR - YTZ

1 stop10h 15mAir Canada

Sat 20/915:25YTZ - LHR

1 stop10h 05mAir Canada

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

Tue 16/908:45LHR - YYZ

1 stop12h 40mAir Canada

Tue 30/918:20YYZ - LHR

Nonstop7h 15mAir Canada

Deal found 28/8£358

Wed 17/906:00LHR - YYZ

1 stop12h 50mAustrian Airlines

Tue 30/921:20YYZ - LHR

1 stop31h 15mAustrian Airlines

Deal found 27/8£360

Wed 17/913:30LHR - YYZ

1 stop11h 15mLufthansa

Sat 27/916:00YYZ - LHR

1 stop9h 30mLufthansa

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

Fri 19/916:00LHR - YYZ

Nonstop7h 55mAir Canada

Tue 23/918:20YYZ - LHR

Nonstop7h 15mAir Canada

Deal found 28/8£358

Thu 25/917:50LHR - YYZ

Nonstop7h 50mVirgin Atlantic

Thu 2/1022:30YYZ - LHR

Nonstop7h 10mVirgin Atlantic

Deal found 28/8£357

One-way flights from Heathrow to Ontario
Search for one-way flight options from Heathrow to Ontario. Find affordable one-way fares based on user searches. Data last updated 29 August 2025.

Tue 16/915:05LHR - YUL

3 stops38h 22mMultiple Airlines

Deal found 28/8£236

Tue 21/1015:05LHR - YUL

3 stops38h 22mMultiple Airlines

Deal found 28/8£238

Wed 10/915:50LHR - YYZ

2 stops33h 10mMultiple Airlines

Deal found 28/8£252

Thu 18/907:40LHR - YYZ

1 stop13h 10mMultiple Airlines

Deal found 28/8£253

Wed 17/907:40LHR - YYZ

1 stop13h 10mMultiple Airlines

Deal found 27/8£256

Tue 16/1208:15LHR - YUL

1 stop41h 00mTAP AIR PORTUGAL

Deal found 28/8£256

Fri 12/921:10LHR - YYZ

2 stops27h 50mMultiple Airlines

Deal found 28/8£257

Thu 11/915:50LHR - YYZ

1 stop29h 00mMultiple Airlines

Deal found 28/8£258

Fri 5/915:05LHR - YUL

3 stops38h 22mMultiple Airlines

Deal found 28/8£258

Thu 4/907:40LHR - YYZ

1 stop13h 10mMultiple Airlines

Deal found 27/8£259

Mon 15/921:10LHR - YUL

2 stops32h 17mMultiple Airlines

Deal found 28/8£259

Tue 9/907:40LHR - YOW

2 stops21h 42mMultiple Airlines

Deal found 27/8£260

Cheapflights Fare Finder

Use the filters below to find and compare flights from London Heathrow Airport to Ontario that are best for you.

Fly from

Fly to

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

...

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?

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

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

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

1,472 reviews

Check prices

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

1,472 reviews

Air France

7.4

Good

1,472 reviews

Check prices

Reviews

1 / 20

10.0

Excellent

SYLVIA,Apr 2025

TLV - CDG

Virgin Atlantic

7.4

Good

661 reviews

Air France

7.4

Good

1,472 reviews

Check prices

Reviews

1 / 20

10.0

Excellent

SYLVIA,Apr 2025

TLV - CDG

Air Canada

7.1

Good

10,000 reviews

Air France

7.4

Good

1,472 reviews

Check prices

Reviews

1 / 20

10.0

Excellent

SYLVIA,Apr 2025

TLV - CDG

Lufthansa

6.8

Okay

7,371 reviews

Air France

7.4

Good

1,472 reviews

Check prices

Reviews

1 / 20

10.0

Excellent

SYLVIA,Apr 2025

TLV - CDG

British Airways

6.7

Okay

7,320 reviews

Air France

7.4

Good

1,472 reviews

Check prices

Reviews

1 / 20

10.0

Excellent

SYLVIA,Apr 2025

TLV - CDG

Related info for your journey

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?
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 (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

Browse thousands of different options on Cheapflights for your next trip

Alternative routes for Heathrow to Ontario

Heathrow to Pearson Intl flights

Gatwick to Pearson Intl flights

Heathrow to Vancouver Intl flights

Heathrow to Toronto Island flights

London City to Pearson Intl flights

Heathrow to Calgary flights

Heathrow to Pierre Elliott Trudeau Intl flights

Stansted to Pearson Intl flights

Luton to Pearson Intl flights

Gatwick to Toronto Island flights

Gatwick to Vancouver Intl flights

London City to Vancouver Intl flights

Gatwick to Calgary flights

London City to Pierre Elliott Trudeau Intl flights

London City to Calgary flights

Gatwick to Pierre Elliott Trudeau Intl flights

Heathrow to Abbotsford flights

Heathrow to Halifax flights

Luton to Pierre Elliott Trudeau Intl flights

Heathrow to Edmonton flights

Stansted to Pierre Elliott Trudeau Intl flights

Heathrow to Ottawa flights

Southend to Pearson Intl flights

Luton to Calgary flights

Gatwick to Edmonton flights

Stansted to Vancouver Intl flights

Gatwick to Halifax flights

Heathrow to Québec City flights

London City to Halifax flights

London City to Edmonton flights

Gatwick to Ottawa flights

London City to Québec City flights

Stansted to Calgary flights

Gatwick to Québec City flights

Heathrow to Winnipeg flights

London City to Ottawa flights

Heathrow to Victoria flights

Luton to Vancouver Intl flights

Luton to Halifax flights

Gatwick to Winnipeg flights

Stansted to Halifax flights

Gatwick to Abbotsford flights

Heathrow to London flights

Heathrow to Windsor flights

Heathrow to St. John's flights

London City to Winnipeg flights

Gatwick to St. John's flights

Heathrow to Saskatoon flights

Complete your trip

Region of Ontario car hire

Toronto Pearson Intl Airport car hire

Ottawa Airport car hire

Toronto Island Airport car hire

Hamilton Airport car hire

London Airport car hire

Toronto Region of Waterloo Intl Airport car hire

Thunder Bay Airport car hire

Sault Ste Marie Airport car hire

Timmins Airport car hire

Kingston Airport car hire

North Bay Airport car hire

Top 10 airlines flying from Heathrow to Ontario

Airline	Cheapest	Average	Flexibility	On-time
Aer Lingus	Cheapest£290	Average£505	FlexibilityNo cancel fee	On-timeN/A	Search Aer Lingus flights
Lufthansa	Cheapest£297	Average£510	FlexibilityNo cancel fee	On-time76%	Search Lufthansa flights
Scandinavian Airlines	Cheapest£297	Average£444	FlexibilityNo cancel fee	On-time77%	Search Scandinavian Airlines flights
Delta	Cheapest£304	Average£496	FlexibilityNo cancel fee	On-timeN/A	Search Delta flights
TAP AIR PORTUGAL	Cheapest£305	Average£527	FlexibilityNo cancel fee	On-timeN/A	Search TAP AIR PORTUGAL flights
Air Transat	Cheapest£309	Average£425	FlexibilityNo cancel fee	On-time50%	Search Air Transat flights
Air Canada	Cheapest£311	Average£537	FlexibilityNo cancel fee	On-time67%	Search Air Canada flights
Icelandair	Cheapest£318	Average£379	FlexibilityNo cancel fee	On-time76%	Search Icelandair flights
Virgin Atlantic	Cheapest£327	Average£444	FlexibilityNo cancel fee	On-time72%	Search Virgin Atlantic flights
KLM	Cheapest£335	Average£471	FlexibilityNo cancel fee	On-time75%	Search KLM flights

Fly with Cheapflights

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?

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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.

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.

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One-way from

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Find flight deals from Heathrow to Ontario

Cheapest flights from Heathrow to OntarioExplore 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.

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.

Cheapflights Fare Finder

Use the filters below to find and compare flights from London Heathrow Airport to Ontario that are best for you.

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.

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?

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.

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.

How much does it cost for a return flight from London Heathrow Airport to Region of Ontario?

Reviews of airlines servicing Ontario

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.

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?

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?

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

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

How can I find direct flights from Heathrow to Ontario?

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

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

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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

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

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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.