What is the cheapest airline that flies from London Heathrow to Ontario?

SWISS, WestJet, and United Airlines are the most popular carriers operating from London Heathrow to Ontario

Which airlines fly to Region of Ontario?

Air Canada, Lufthansa and Virgin Atlantic are the top three most popular airlines that fly to Region of Ontario from London Heathrow Airport according to our data. Air Canada is the first choice among our users, with 73% of people opting to fly with this airline when travelling to Region of Ontario. Keep in mind that there are 16 different airlines that fly to Region of Ontario on a routine basis, so you have a few additional options to choose from.

How many operators does momondo search for flights from London Heathrow Airport to Ontario?

There are 17 operators available for flights from London Heathrow Airport to Ontario as of September 2026.

How old do you have to be to fly from London Heathrow Airport to Ontario?

Although the minimum age for a child to fly alone is five, airlines that offer an unaccompanied minor (UMNR) service may have their own age limits, which could be impacted by factors such as flight length, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from London Heathrow Airport to Ontario.

What documentation or ID do you need to fly to Ontario?

The travel and health documents you'll need for your trip to Ontario may differ based on your itinerary and personal situation. Typically, you should have several documents on hand, such as a national ID card or driver's license and a passport that is valid for six months after your intended arrival at Ontario. It is always advisable to seek advice from your airline or a trusted third party, such as IATA.

£232 Cheap Flights from London Heathrow Airport to Region of Ontario in 2026

Q: How many flights depart from London Heathrow Airport to Region of Ontario on average per day?

As of September 2026, there are 37 flights per day flying from London Heathrow Airport to Region of Ontario. The most common time of day flights depart is 17:00, with 80% of flights taking off in the afternoon.

Q: How many flights depart from London Heathrow Airport to Region of Ontario on average per week?

As of September 2026, there are 262 flights per week flying from London Heathrow Airport to Region of Ontario. The most common day of the week flights depart is Wed, with 23% of flights taking off on this day.

Discover deals from 900+ travel sites with momondo.

Find the cheapest flights from London Heathrow Airport to Ontario

Return

One-way

Last minute

Direct

Cheap return flights

Enter your travel dates to find the best prices.

12:40 - 20:40LHR London Heathrow-YUL Montreal Pierre Elliott Trudeau Intl

13h 00m1 stop Halifax Intl

21:35 - 21:00YUL Montreal Pierre Elliott Trudeau Intl-LHR London Heathrow

18h 25m1 stop Halifax Intl

£368Air Canada

Fri, 16 Oct - Sun, 1 Nov

12:40 - 20:40LHR London Heathrow-YUL Montreal Pierre Elliott Trudeau Intl

13h 00m1 stop Halifax Intl

16:40 - 08:30YUL Montreal Pierre Elliott Trudeau Intl-LHR London Heathrow

11h 50m1 stop Toronto Pearson Intl

£368Air Canada

Fri, 16 Oct - Sun, 25 Oct

09:30 - 16:00LHR London Heathrow-YUL Montreal Pierre Elliott Trudeau Intl

11h 30m1 stop Frankfurt am Main

14:30 - 12:20YUL Montreal Pierre Elliott Trudeau Intl-LHR London Heathrow

16h 50m1 stop Toronto Pearson Intl

£368Multiple Airlines

Tue, 13 Oct - Sat, 24 Oct

18:40 - 12:50LHR London Heathrow-YYZ Toronto Pearson Intl

23h 10m1 stop Zurich

20:05 - 16:25YYZ Toronto Pearson Intl-LHR London Heathrow

15h 20m1 stop Zurich

£371SWISS

Wed, 7 Oct - Wed, 14 Oct

06:20 - 15:50LHR London Heathrow-YYZ Toronto Pearson Intl

14h 30m1 stop Dublin

23:20 - 10:25YYZ Toronto Pearson Intl-LHR London Heathrow

7h 05mdirect

£372British Airways

Thu, 22 Oct - Mon, 26 Oct

08:50 - 15:50LHR London Heathrow-YYZ Toronto Pearson Intl

12h 00m1 stop Dublin

23:20 - 10:25YYZ Toronto Pearson Intl-LHR London Heathrow

7h 05mdirect

£372British Airways

Thu, 15 Oct - Mon, 26 Oct

06:00 - 15:00LHR London Heathrow-YUL Montreal Pierre Elliott Trudeau Intl

14h 00m1 stop Zurich

17:40 - 13:40YUL Montreal Pierre Elliott Trudeau Intl-LHR London Heathrow

16h 00m2 stops Zurich Geneva Geneve-Cointrin

£372SWISS

Thu, 22 Oct - Tue, 27 Oct

08:30 - 16:20LHR London Heathrow-YYZ Toronto Pearson Intl

12h 50m1 stop Frankfurt am Main

18:35 - 06:30YYZ Toronto Pearson Intl-LHR London Heathrow

30h 55m1 stop Ottawa

£372Multiple Airlines

Fri, 23 Oct - Fri, 6 Nov

08:30 - 19:45LHR London Heathrow-YYZ Toronto Pearson Intl

16h 15m1 stop Frankfurt am Main

20:20 - 08:30YYZ Toronto Pearson Intl-LHR London Heathrow

7h 10mdirect

£373Lufthansa

Sun, 1 Nov - Sun, 29 Nov

08:30 - 16:20LHR London Heathrow-YYZ Toronto Pearson Intl

12h 50m1 stop Frankfurt am Main

23:00 - 11:20YYZ Toronto Pearson Intl-LHR London Heathrow

7h 20mdirect

£373Lufthansa

Fri, 23 Oct - Fri, 6 Nov

Cheap last-minute flights

Enter your travel dates to find the best prices.

12:40 - 18:27LHR London Heathrow-YYZ Toronto Pearson Intl

10h 47m1 stop Halifax Intl

18:00 - 10:00YYZ Toronto Pearson Intl-LHR London Heathrow

11h 00m1 stop Montreal Pierre Elliott Trudeau Intl

£371Lufthansa

Wed, 16 Sep - Tue, 6 Oct

08:40 - 18:12LHR London Heathrow-YYZ Toronto Pearson Intl

14h 32m2 stops Zurich Montreal Pierre Elliott Trudeau Intl

12:05 - 06:30YYZ Toronto Pearson Intl-LHR London Heathrow

13h 25m2 stops Ottawa Montreal Pierre Elliott Trudeau Intl

£373Multiple Airlines

Wed, 16 Sep - Wed, 23 Sep

06:50 - 11:50LHR London Heathrow-YYZ Toronto Pearson Intl

10h 00m1 stop Brussels Bruxelles-National

08:00 - 06:30YYZ Toronto Pearson Intl-LHR London Heathrow

17h 30m2 stops Ottawa Montreal Pierre Elliott Trudeau Intl

£373Air Canada

Tue, 15 Sep - Tue, 22 Sep

09:30 - 15:50LHR London Heathrow-YTZ Toronto Island

11h 20m1 stop Montreal Pierre Elliott Trudeau Intl

15:35 - 06:30YTZ Toronto Island-LHR London Heathrow

9h 55m1 stop Ottawa

£374Air Canada

Tue, 15 Sep - Mon, 5 Oct

07:30 - 23:18LHR London Heathrow-YYZ Toronto Pearson Intl

20h 48m2 stops Frankfurt am Main Montreal Pierre Elliott Trudeau Intl

23:50 - 11:50YYZ Toronto Pearson Intl-LHR London Heathrow

7h 00mdirect

£374Lufthansa

Tue, 15 Sep - Tue, 22 Sep

08:40 - 18:12LHR London Heathrow-YYZ Toronto Pearson Intl

14h 32m2 stops Zurich Montreal Pierre Elliott Trudeau Intl

13:55 - 06:45YYZ Toronto Pearson Intl-LHR London Heathrow

11h 50m1 stop Chicago O'Hare Intl

£374Multiple Airlines

Wed, 16 Sep - Wed, 23 Sep

17:50 - 20:40LHR London Heathrow-YYZ Toronto Pearson Intl

7h 50mdirect

22:55 - 11:10YYZ Toronto Pearson Intl-LHR London Heathrow

7h 15mdirect

£375KLM

Wed, 16 Sep - Fri, 9 Oct

17:50 - 20:40LHR London Heathrow-YYZ Toronto Pearson Intl

7h 50mdirect

22:55 - 11:10YYZ Toronto Pearson Intl-LHR London Heathrow

7h 15mdirect

£375KLM

Wed, 16 Sep - Wed, 23 Sep

17:50 - 20:40LHR London Heathrow-YYZ Toronto Pearson Intl

7h 50mdirect

22:55 - 11:10YYZ Toronto Pearson Intl-LHR London Heathrow

7h 15mdirect

£379Delta

Wed, 16 Sep - Mon, 21 Sep

08:55 - 21:00LHR London Heathrow-YYZ Toronto Pearson Intl

17h 05m1 stop Paris Charles de Gaulle

22:55 - 11:10YYZ Toronto Pearson Intl-LHR London Heathrow

7h 15mdirect

£387Delta

Tue, 15 Sep - Fri, 9 Oct

Cheap direct flights

Enter your travel dates to find the best prices.

09:30 - 12:00LHR London Heathrow-YUL Montreal Pierre Elliott Trudeau Intl

7h 30mdirect

20:10 - 07:10YUL Montreal Pierre Elliott Trudeau Intl-LHR London Heathrow

7h 00mdirect

£369Air Canada

Fri, 16 Oct - Sun, 25 Oct

18:00 - 21:05LHR London Heathrow-YYZ Toronto Pearson Intl

8h 05mdirect

20:10 - 08:30YYZ Toronto Pearson Intl-LHR London Heathrow

7h 20mdirect

£371Air Canada

Sun, 1 Nov - Sat, 7 Nov

17:50 - 20:40LHR London Heathrow-YYZ Toronto Pearson Intl

7h 50mdirect

22:55 - 11:10YYZ Toronto Pearson Intl-LHR London Heathrow

7h 15mdirect

£375KLM

Fri, 2 Oct - Fri, 9 Oct

17:50 - 20:40LHR London Heathrow-YYZ Toronto Pearson Intl

7h 50mdirect

22:55 - 11:10YYZ Toronto Pearson Intl-LHR London Heathrow

7h 15mdirect

£375KLM

Wed, 7 Oct - Wed, 14 Oct

16:45 - 19:15LHR London Heathrow-YUL Montreal Pierre Elliott Trudeau Intl

7h 30mdirect

21:05 - 08:55YUL Montreal Pierre Elliott Trudeau Intl-LHR London Heathrow

6h 50mdirect

£376British Airways

Sun, 13 Dec - Fri, 8 Jan

17:50 - 20:40LHR London Heathrow-YYZ Toronto Pearson Intl

7h 50mdirect

22:55 - 11:10YYZ Toronto Pearson Intl-LHR London Heathrow

7h 15mdirect

£376Virgin Atlantic

Fri, 2 Oct - Fri, 9 Oct

17:05 - 20:10LHR London Heathrow-YYZ Toronto Pearson Intl

8h 05mdirect

22:15 - 10:30YYZ Toronto Pearson Intl-LHR London Heathrow

7h 15mdirect

£376British Airways

Tue, 13 Oct - Sun, 18 Oct

15:00 - 18:00LHR London Heathrow-YYZ Toronto Pearson Intl

8h 00mdirect

20:10 - 08:30YYZ Toronto Pearson Intl-LHR London Heathrow

7h 20mdirect

£377Lufthansa

Sun, 8 Nov - Sun, 15 Nov

17:50 - 20:40LHR London Heathrow-YYZ Toronto Pearson Intl

7h 50mdirect

22:55 - 11:10YYZ Toronto Pearson Intl-LHR London Heathrow

7h 15mdirect

£377Virgin Atlantic

Thu, 15 Oct - Fri, 23 Oct

18:00 - 21:05LHR London Heathrow-YYZ Toronto Pearson Intl

8h 05mdirect

20:10 - 08:30YYZ Toronto Pearson Intl-LHR London Heathrow

7h 20mdirect

£378Lufthansa

Fri, 6 Nov - Mon, 9 Nov

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Delta flights from London Heathrow Airport to Region of Ontario

Our best Delta deals on London Heathrow Airport to Region of Ontario flight tickets

Delta

16 Sept

LHR17:50London Heathrow

7h 50m

YYZ20:40Toronto Pearson Intl

21 Sept

YYZ22:55Toronto Pearson Intl

7h 15m

LHR11:10London Heathrow

£379

Delta

14 Oct

LHR08:55London Heathrow

11h 55m

1 stop

YYZ15:50Toronto Pearson Intl

22 May

YYZ22:45Toronto Pearson Intl

7h 05m

LHR10:50London Heathrow

£387

Delta

3 Oct

LHR17:50London Heathrow

7h 50m

YYZ20:40Toronto Pearson Intl

11 Oct

YYZ22:55Toronto Pearson Intl

7h 15m

LHR11:10London Heathrow

£395

British Airways flights from London Heathrow Airport to Region of Ontario

Our best British Airways deals on London Heathrow Airport to Region of Ontario flight tickets

British Airways

6 Mar

LHR09:50London Heathrow

11h 00m

1 stop

YYZ15:50Toronto Pearson Intl

23 Mar

YYZ19:05Toronto Pearson Intl

7h 10m

LHR06:15London Heathrow

£388

British Airways

9 Oct

LHR06:20London Heathrow

14h 30m

1 stop

YYZ15:50Toronto Pearson Intl

14 Oct

YYZ18:05Toronto Pearson Intl

7h 10m

LHR06:15London Heathrow

£389

British Airways

27 Dec

LHR16:45London Heathrow

7h 30m

YUL19:15Montreal Pierre Elliott Trudeau Intl

7 Jan

YUL21:15Montreal Pierre Elliott Trudeau Intl

6h 50m

LHR09:05London Heathrow

£393

momondo 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

Cheapest return flight

LondonMontreal

LHR London Heathrow - YUL Montreal Pierre Elliott Trudeau Intl

LHRYUL

London Heathrow

Fri 16/10

12:40-20:40

1 stop13h 00m

Montreal Pierre Elliott Trudeau Intl

Sun 1/11

21:35-21:00

1 stop18h 25m

£368

LondonMontreal

LHR London Heathrow - YUL Montreal Pierre Elliott Trudeau Intl

LHRYUL

London Heathrow

Fri 16/10

12:40-20:40

1 stop13h 00m

Montreal Pierre Elliott Trudeau Intl

Sun 25/10

16:40-08:30

1 stop11h 50m

£368

LondonMontreal

LHR London Heathrow - YUL Montreal Pierre Elliott Trudeau Intl

LHRYUL

London Heathrow

Tue 13/10

09:30-16:00

1 stop11h 30m

Montreal Pierre Elliott Trudeau Intl

Sat 24/10

14:30-12:20

1 stop16h 50m

£368

LondonToronto

LHR London Heathrow - YYZ Toronto Pearson Intl

LHRYYZ

London Heathrow

Wed 7/10

18:40-12:50

1 stop23h 10m

Toronto Pearson Intl

Wed 14/10

20:05-16:25

1 stop15h 20m

£371

LondonToronto

LHR London Heathrow - YYZ Toronto Pearson Intl

LHRYYZ

London Heathrow

Thu 22/10

06:20-15:50

1 stop14h 30m

Toronto Pearson Intl

Mon 26/10

23:20-10:25

Nonstop7h 05m

£372

Fastest return journey

LondonToronto

LHR London Heathrow - YYZ Toronto Pearson Intl

LHRYYZ

London Heathrow

Thu 15/10

08:50-15:50

1 stop12h 00m

Toronto Pearson Intl

Mon 26/10

23:20-10:25

Nonstop7h 05m

£372

LondonMontreal

LHR London Heathrow - YUL Montreal Pierre Elliott Trudeau Intl

LHRYUL

London Heathrow

Thu 22/10

06:00-15:00

1 stop14h 00m

Montreal Pierre Elliott Trudeau Intl

Tue 27/10

17:40-13:40

2 stops16h 00m

£372

LondonToronto

LHR London Heathrow - YYZ Toronto Pearson Intl

LHRYYZ

London Heathrow

Fri 23/10

08:30-16:20

1 stop12h 50m

Toronto Pearson Intl

Fri 6/11

18:35-06:30

1 stop30h 55m

£372

LondonToronto

LHR London Heathrow - YYZ Toronto Pearson Intl

LHRYYZ

London Heathrow

Sun 1/11

08:30-19:45

1 stop16h 15m

Toronto Pearson Intl

Sun 29/11

20:20-08:30

Nonstop7h 10m

£373

LondonToronto

LHR London Heathrow - YYZ Toronto Pearson Intl

LHRYYZ

London Heathrow

Fri 23/10

08:30-16:20

1 stop12h 50m

Toronto Pearson Intl

Fri 6/11

23:00-11:20

Nonstop7h 20m

£373

Flights are sorted by cheapest return flights first.

Showing 1-10 of 20 resultsSorted by cheapest first

How to get the cheapest flight ticket from London Heathrow Airport to Region of Ontario

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

Prices

Airlines

Other information

What is the cheapest month to fly to Region of Ontario?

In general, February is the cheapest month to fly from London Heathrow Airport to Region of Ontario. Due to it being the ‘off-season’ during this time, you can expect flight prices to be around £413. If you aren’t able to travel to Region of Ontario during the month of February, then flying in January is also cheap. Prices for this month can be found on momondo for an average of £422.

What is the cheapest day to depart on your flight to Region of Ontario?

The cheapest day to depart from London Heathrow Airport to Region of Ontario is on a Friday when prices can be found for as low as £545. Flights from London Heathrow Airport to Region of Ontario on a Sunday will generally be more expensive and average around £586. Keep in mind that these prices on both days could fluctuate depending on the season and the demand.

What is the cheapest time of day to depart on your flight to Region of Ontario?

Our data shows that the cheapest London Heathrow Airport to Region of Ontario flights are usually those with departure times in the morning. Our users have found flights to Region of Ontario in the morning for as low as £548. In the afternoon is when there is more demand to fly to Region of Ontario, so prices are often more expensive at around £591 per ticket.

What is the cheapest London Heathrow to Ontario flight route?

Fly from London Heathrow to Toronto Pearson Intl for the best London Heathrow - Ontario flight prices

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

You are more likely to see cheaper flights to Region of Ontario from London Heathrow Airport when booking weeks ahead of your departure date. In general, you can expect to find flights to Region of Ontario for around £507 when searching weeks before you fly. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Region of Ontario from London Heathrow Airport for as low as £493 on momondo.

What cabin class options are available on London Heathrow Airport to Region of Ontario flights?

There are 4 cabin classes available to choose from on London Heathrow Airport to Region of Ontario flights. Cabin price and availability will vary by airline so perform a search above to find the right deals for you.

Cheap London Heathrow Airport to Region of Ontario flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from London Heathrow Airport to Region of Ontario

Best price found	£232
Fastest flight time	7h 10m
Direct flights	Every day
Airports in Region of Ontario	125 airports

The best one-way flight to Region of Ontario from London Heathrow Airport in the past 72 hours is £232. The best return flight deal from London Heathrow Airport to Region of Ontario found on momondo in the last 72 hours is £368.

The fastest flight from London Heathrow Airport to Region of Ontario takes 7h 10m

Direct flights go from London Heathrow Airport to Region of Ontario every day.

There are 125 airports in Region of Ontario. From London Heathrow Airport there are direct flights to Montreal Pierre Elliott Trudeau Intl (YUL).

Search flight deals

Frequently asked questions about flying from London Heathrow Airport to Ontario

When did momondo last update prices for flights from London Heathrow Airport to Ontario?
Prices for flights from London Heathrow Airport to Ontario refresh daily.
How many operators does momondo search for flights from London Heathrow Airport to Ontario?
There are 17 operators available for flights from London Heathrow Airport to Ontario as of September 2026.
How old do you have to be to fly from London Heathrow Airport to Ontario?
Although the minimum age for a child to fly alone is five, airlines that offer an unaccompanied minor (UMNR) service may have their own age limits, which could be impacted by factors such as flight length, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from London Heathrow Airport to Ontario.
What documentation or ID do you need to fly to Ontario?
The travel and health documents you'll need for your trip to Ontario may differ based on your itinerary and personal situation. Typically, you should have several documents on hand, such as a national ID card or driver's license and a passport that is valid for six months after your intended arrival at Ontario. It is always advisable to seek advice from your airline or a trusted third party, such as IATA.
What is the most popular plane model from London Heathrow Airport to Region of Ontario?
Based on momondo bookings for this flight route, the most popular plane model on flight routes from London Heathrow Airport to Region of Ontario is Airbus A350-1000 (27.70% of total bookings). The next most popular plane models are Airbus A330-200 (16.62%), Airbus A321neo (14.82%), and Boeing 787-9 Dreamliner (9.28%).

Best airlines flying from London Heathrow Airport to Region of Ontario

Compare and see reviews for airlines that fly from London Heathrow Airport to Region of Ontario with momondo

Airline	Rating	Free Cancellation	Price
ITA Airways	PriceFrom £262	Free Cancellation	Rating 6.7 1,339 reviews	Search ITA Airways flights
Icelandair	PriceFrom £310	Free Cancellation	Rating 6.9 741 reviews	Search Icelandair flights
Air Canada	PriceFrom £316	Free Cancellation	Rating 7.1 11,608 reviews	Search Air Canada flights
Air Transat	PriceFrom £330	Free Cancellation	Rating 7.7 578 reviews	Search Air Transat flights
TAP AIR PORTUGAL	PriceFrom £331	Free Cancellation	Rating 7.2 2,387 reviews	Search TAP AIR PORTUGAL flights
Virgin Atlantic	PriceFrom £332	Free Cancellation	Rating 7.4 694 reviews	Search Virgin Atlantic flights
American Airlines	PriceFrom £345	Free Cancellation	Rating 7.1 12,046 reviews	Search American Airlines flights
Air France	PriceFrom £352	Free Cancellation	Rating 7.5 1,651 reviews	Search Air France flights
Aer Lingus	PriceFrom £359	Free Cancellation	Rating 7.3 1,755 reviews	Search Aer Lingus flights
Lufthansa	PriceFrom £361	Free Cancellation	Rating 6.8 8,212 reviews	Search Lufthansa flights

Why use momondo?

Why should I use momondo to find a flight deal from London to Ontario?

Finding the right flight to Ontario from London is quick and easy when you have a range of options in front of you, from reputable agents and recognisable airlines. Options that can then be filtered down to find the best fit. That is what momondo does. We make finding flights to Ontario quick and easy, saving you time and money.

Can I find flights from London to Ontario with flexible booking policies on momondo?

Yes. All flights to Ontario from London on momondo can be compared and filtered by various policies on offer, including flexible booking.

How can momondo help me find flights from London to Ontario?

Once all potential London to Ontario flight options are in front of you, momondo lets you sort and filter flights based on preferences such as airline, price and flight times amongst many other options.

I’m not ready to book a flight from London to Ontario right now. Can momondo alert me if prices change?

Of course. momondo tracks the price of London to Ontario flights. All you need is a valid email address and we will do the rest; it is that quick and easy.