How long is the flight from Region of Ontario to London Heathrow Airport?

For as low as £478, Delta can have you in London Heathrow Airport from Region of Ontario in 7h 05m. Region of Ontario and London Heathrow Airport are separated by a distance of 3543 mi. Generally, flights for this route are direct.

What are the cheapest airlines to fly from Region of Ontario to London Heathrow Airport one-way?

£195 is the cheapest one-way deal found within the past few days, from TAP AIR PORTUGAL. You may also be able to find cheap deals on Lufthansa and Air Canada, with prices starting from £252 and £252, respectively.

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.

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).

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 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 £557, our data indicates the cheapest price to be £251. The most popular route (Toronto Pearson Intl - London Heathrow), is priced around £376.

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 KLM (86%), SAUDIA (86%) or Air France (86%) as they are the most reliable in getting you off to your destination on time.

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

Air Canada, Virgin Atlantic and British Airways are the most popular airlines when flying from Region of Ontario to London Heathrow Airport.

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.

£214+ Cheap Flights from Ontario to London Heathrow Airport

Cheap flight deals from Ontario to Heathrow

Enter your travel dates to find the best prices.

Cheapest

Best

Direct

Last-minute

One-way

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 3 November 2026.

Tue 17/1119:40 -

1 stop18h 50m

Sun 22/1120:35 -

1 stop26h 40m

Deal found 2/11£409

Sun 22/1119:40 -

1 stop18h 50m

Fri 27/1112:15 -

1 stop11h 00m

Deal found 30/10£413

Mon 16/1110:45 -

2 stops19h 30m

Wed 18/1109:05 -

2 stops35h 51m

Deal found 30/10£414

Sun 15/1119:40 -

1 stop18h 50m

Thu 3/1212:15 -

1 stop11h 00m

Deal found 29/10£414

Wed 18/1119:40 -

1 stop18h 50m

Tue 1/1220:35 -

1 stop26h 40m

Deal found 29/10£415

Sun 15/1119:40 -

1 stop10h 10m

Tue 1/1220:35 -

1 stop26h 40m

Deal found 29/10£415

Sun 22/1119:40 -

1 stop10h 10m

Thu 3/1212:15 -

1 stop11h 00m

Deal found 2/11£416

Sun 22/1119:40 -

1 stop10h 10m

Tue 1/1220:35 -

1 stop26h 40m

Deal found 2/11£417

Sun 22/1119:40 -

1 stop18h 50m

Sat 5/1220:35 -

1 stop26h 40m

Deal found 31/10£418

Thu 26/1120:25 -

1 stop33h 50m

Sun 29/1109:00 -

1 stop27h 49m

Deal found 3/11£418

Tue 10/1112:30 -

2 stops18h 30m

Thu 12/1111:05 -

2 stops35h 46m

Deal found 2/11£419

Sun 22/1120:25 -

1 stop33h 50m

Wed 25/1111:10 -

Nonstop8h 15m

Deal found 30/10£420

Best flights from Ontario to Heathrow
Discover carefully curated flight deals from Ontario to Heathrow that have cost, travel time, and stopovers in mind to ensure you get the best travel experience. Data last updated 3 November 2026.

Thu 3/1221:45 -

Nonstop7h 05m

Mon 7/1216:10 -

Nonstop7h 55m

Deal found 1/11£477

Sat 14/1121:45 -

Nonstop7h 05m

Sat 21/1111:30 -

1 stop13h 15m

Deal found 1/11£477

Fri 16/422:45 -

Nonstop7h 05m

Mon 19/408:40 -

1 stop16h 15m

Deal found 31/10£483

Thu 19/1120:10 -

Nonstop7h 20m

Tue 24/1109:00 -

1 stop11h 45m

Deal found 3/11£489

Tue 17/1115:20 -

1 stop10h 20m

Tue 1/1212:05 -

1 stop11h 52m

Deal found 30/10£550

Sat 10/410:35 -

1 stop29h 25m

Fri 16/407:25 -

2 stops16h 19m

Deal found 30/10£610

Sat 10/419:20 -

2 stops31h 05m

Fri 16/407:25 -

2 stops16h 19m

Deal found 30/10£610

Tue 20/422:45 -

Nonstop7h 05m

Tue 4/506:30 -

1 stop11h 50m

Deal found 31/10£483

Fri 19/322:00 -

2 stops43h 00m

Tue 30/306:00 -

1 stop12h 20m

Deal found 3/11£503

Sat 13/321:45 -

Nonstop7h 05m

Sat 17/406:30 -

1 stop12h 25m

Deal found 3/11£483

Fri 12/215:15 -

1 stop10h 25m

Sat 20/206:50 -

2 stops18h 22m

Deal found 30/10£564

Sun 17/119:20 -

2 stops56h 00m

Thu 21/106:00 -

2 stops32h 55m

Deal found 1/11£530

Thu 26/1112:15 -

1 stop13h 50m

Sun 17/106:30 -

1 stop17h 45m

Deal found 31/10£497

Thu 29/419:20 -

1 stop11h 35m

Tue 18/507:45 -

2 stops15h 57m

Deal found 1/11£565

Fri 23/422:45 -

Nonstop7h 05m

Mon 3/506:30 -

1 stop18h 25m

Deal found 1/11£499

Mon 30/1117:15 -

1 stop10h 15m

Wed 30/1206:35 -

2 stops21h 01m

Deal found 30/10£672

Fri 16/412:10 -

1 stop13h 35m

Wed 21/412:15 -

1 stop11h 31m

Deal found 31/10£573

Tue 2/317:10 -

1 stop10h 20m

Fri 5/309:00 -

2 stops30h 08m

Deal found 2/11£575

Sun 14/315:59 -

1 stop11h 46m

Sat 17/406:30 -

1 stop11h 50m

Deal found 30/10£503

Fri 23/415:15 -

1 stop10h 40m

Tue 18/510:25 -

2 stops13h 17m

Deal found 2/11£573

Thu 11/306:00 -

1 stop19h 20m

Mon 22/316:10 -

Nonstop7h 55m

Deal found 3/11£511

Fri 2/415:15 -

1 stop10h 40m

Sat 10/407:45 -

2 stops16h 01m

Deal found 29/10£576

Fri 13/1115:20 -

1 stop10h 20m

Sat 28/1111:10 -

1 stop12h 09m

Deal found 1/11£768

Thu 29/417:10 -

2 stops12h 35m

Thu 20/506:30 -

2 stops13h 30m

Deal found 1/11£848

Tue 20/412:30 -

2 stops17h 10m

Thu 13/506:50 -

2 stops31h 21m

Deal found 30/10£602

Sat 13/317:10 -

2 stops12h 35m

Sat 20/309:05 -

2 stops18h 35m

Deal found 3/11£892

Wed 28/406:00 -

1 stop9h 40m

Tue 18/518:00 -

1 stop20h 11m

Deal found 1/11£607

Thu 22/405:30 -

2 stops29h 30m

Sun 2/506:40 -

3 stops22h 40m

Deal found 31/10£1,025

Mon 30/1116:00 -

2 stops13h 50m

Fri 4/1212:05 -

1 stop11h 52m

Deal found 2/11£638

Sun 3/117:10 -

2 stops12h 35m

Sat 9/111:20 -

2 stops17h 20m

Deal found 30/10£1,068

Find flight deals from Ontario to Heathrow

Round-trip from	£409
One-way from	£214
Popular in	December
Cheapest in	February
Average price	£469
Good round-trip deal	£472 or less
Good one-way deal	£369 or less

Icelandair
17/11-22/11
2 total stops
45h 30m total
Ontario to London

Search Deals

WestJet
23/1-31/12
2 total stops
33h 00m total
Ontario to London

Search Deals

Highest demand for flights based on searches. 2% potential increase in price (£11 potential increase over avg. return price).

Search Deals

Cheapest flight prices on average. 3% potential price decrease (£13 potential savings vs. average return price).

Search Deals

Average for round-trip flights in November 2026

Search Deals

Price to beat on a round-trip flight from Ontario to London Heathrow.

Search Deals

Price to beat on a one-way flight from Ontario to London Heathrow.

Search Deals

Cheapflights Fare Finder

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

Fly from

Fly to

Route

Depart

Return

Price

Cheapest return flight

TorontoLondon

YTZ Toronto Island - LHR London Heathrow

YTZLHR

Toronto Island

Mon 8/2

16:30-07:10

1 stop9h 40m

London Heathrow

Wed 31/12

00:00-18:00

Nonstop0h 00m

£245

TorontoLondon

YTZ Toronto Island - LHR London Heathrow

YTZLHR

Toronto Island

Sat 30/1

18:55-21:00

1 stop21h 05m

London Heathrow

Wed 31/12

00:00-18:00

Nonstop0h 00m

£248

TorontoLondon

YTZ Toronto Island - LHR London Heathrow

YTZLHR

Toronto Island

Fri 15/1

20:30-07:10

1 stop29h 40m

London Heathrow

Wed 31/12

00:00-18:00

Nonstop0h 00m

£251

OttawaLondon

YOW Ottawa - LHR London Heathrow

YOWLHR

Ottawa

Mon 7/12

18:55-12:50

1 stop36h 55m

London Heathrow

Wed 31/12

00:00-18:00

Nonstop0h 00m

£251

OttawaLondon

YOW Ottawa - LHR London Heathrow

YOWLHR

Ottawa

Tue 8/12

06:10-12:50

1 stop25h 40m

London Heathrow

Wed 31/12

00:00-18:00

Nonstop0h 00m

£254

OttawaLondon

YOW Ottawa - LHR London Heathrow

YOWLHR

Ottawa

Tue 8/12

07:00-12:50

2 stops24h 50m

London Heathrow

Wed 31/12

00:00-18:00

Nonstop0h 00m

£263

TorontoLondon

YTZ Toronto Island - LHR London Heathrow

YTZLHR

Toronto Island

Fri 15/1

17:50-17:30

2 stops18h 40m

London Heathrow

Wed 31/12

00:00-18:00

Nonstop0h 00m

£277

OttawaLondon

YOW Ottawa - LHR London Heathrow

YOWLHR

Ottawa

Fri 4/12

05:30-12:50

3 stops26h 20m

London Heathrow

Wed 31/12

00:00-18:00

Nonstop0h 00m

£277

TorontoLondon

YYZ Toronto Pearson Intl - LHR London Heathrow

YYZLHR

Toronto Pearson Intl

Wed 2/12

10:30-10:50

2 stops19h 20m

London Heathrow

Wed 31/12

00:00-18:00

Nonstop0h 00m

£278

TorontoLondon

YYZ Toronto Pearson Intl - LHR London Heathrow

YYZLHR

Toronto Pearson Intl

Wed 11/11

19:26-12:00

1 stop11h 34m

London Heathrow

Wed 31/12

00:00-18:00

Nonstop0h 00m

£278

Flights are sorted by cheapest return flights first.

Deals found on 2/11

Showing 1-10 of 60 resultsSorted by cheapest first

...

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.

YYZ-LHR

YTZ-LHR

YQG-LHR

YQT-LHR

YOW-LHR

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 Ontario to London Heathrow Airport

CAON-LHR

YYZ-LHR

YTZ-LHR

YQG-LHR

YQT-LHR

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

Currently, February is the cheapest month in which you can book a flight from Region of Ontario to London Heathrow Airport (average of £453). Flying from Region of Ontario to London Heathrow Airport in December is currently the most expensive (average of £703). 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?

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.

Weekly flight availability from Region of Ontario to London Heathrow Airport

The most flights from CAON to LHR are scheduled on a Monday (31 on average). You will have fewer flight options on Thursday, which is when the least amount of flights are scheduled (15 on average).

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

Airfare is below average for this route at the moment.

Region of Ontario to London Heathrow Airport flights typically cost between £471 and £600 in November.
The cheapest return price found within the last 5 days was £409 on Icelandair (17 Nov–22 Nov).

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

Booking 50 days in advance of your planned departure date is, on average, the best time to get cheap flights from Region of Ontario to London Heathrow Airport. The general trend is that the closer you book to the departure date, the more expensive your flight will be.

Related info for your journey

How long is the flight from Region of Ontario to London Heathrow Airport?
For as low as £478, Delta can have you in London Heathrow Airport from Region of Ontario in 7h 05m. Region of Ontario and London Heathrow Airport are separated by a distance of 3543 mi. Generally, flights for this route are direct.
What are the cheapest airlines to fly from Region of Ontario to London Heathrow Airport one-way?
£195 is the cheapest one-way deal found within the past few days, from TAP AIR PORTUGAL. You may also be able to find cheap deals on Lufthansa and Air Canada, with prices starting from £252 and £252, 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 KLM (86%), SAUDIA (86%) or Air France (86%) 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 £557, our data indicates the cheapest price to be £251. The most popular route (Toronto Pearson Intl - London Heathrow), is priced around £376.
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, February is the cheapest month in which you can book a flight from Region of Ontario to London Heathrow Airport (average of £453). Flying from Region of Ontario to London Heathrow Airport in December is currently the most expensive (average of £703). 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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Wembley

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Ilford

Hayes

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Northampton

Barnet

Brentford

Southend-on-Sea

Enfield

Southall

Harrow

Watford

Folkestone

Dagenham

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Alternative routes for Ontario to Heathrow

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Top 7 airlines flying from Ontario to Heathrow

Airline	Cheapest	Average	Flexibility	On-time
Aer Lingus	Cheapest£310	Average£638	FlexibilityNo cancel fee	On-timeN/A	Search Aer Lingus flights
Icelandair	Cheapest£353	Average£566	FlexibilityNo cancel fee	On-time76%	Search Icelandair flights
KLM	Cheapest£379	Average£496	FlexibilityNo cancel fee	On-time75%	Search KLM flights
Air Canada	Cheapest£422	Average£601	FlexibilityNo cancel fee	On-time67%	Search Air Canada flights
Lufthansa	Cheapest£423	Average£587	FlexibilityNo cancel fee	On-time76%	Search Lufthansa flights
Virgin Atlantic	Cheapest£426	Average£598	FlexibilityNo cancel fee	On-time72%	Search Virgin Atlantic flights
British Airways	Cheapest£478	Average£644	FlexibilityNo cancel fee	On-time70%	Search British Airways flights

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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!

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Cheap flights from Ontario to London Heathrow Airport from £214

This is the cheapest retur flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 23/1. Fares are subject to change and may not be available on all flights or dates of travel.

Cheap flight deals from Ontario to Heathrow

Cheapest flights from Ontario to HeathrowExplore 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 3 November 2026.

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 3 November 2026.

Best flights from Ontario to HeathrowDiscover carefully curated flight deals from Ontario to Heathrow that have cost, travel time, and stopovers in mind to ensure you get the best travel experience. Data last updated 3 November 2026.

Discover carefully curated flight deals from Ontario to Heathrow that have cost, travel time, and stopovers in mind to ensure you get the best travel experience. Data last updated 3 November 2026.

Direct flights from Ontario to HeathrowExplore direct flight options from Ontario to Heathrow based on user searches, and compare prices and availability for your desired travel dates. Data last updated 3 November 2026.

Explore direct flight options from Ontario to Heathrow based on user searches, and compare prices and availability for your desired travel dates. Data last updated 3 November 2026.

Last-minute flights from Ontario to HeathrowDiscover last-minute flight deals from Ontario to Heathrow. Data last updated 3 November 2026 and is based on user searches.

Discover last-minute flight deals from Ontario to Heathrow. Data last updated 3 November 2026 and is based on user searches.

One-way flights from Ontario to HeathrowSearch for one-way flight options from Ontario to Heathrow. Find affordable one-way fares based on user searches. Data last updated 3 November 2026.

Search for one-way flight options from Ontario to Heathrow. Find affordable one-way fares based on user searches. Data last updated 3 November 2026.

Find flight deals from Ontario to Heathrow

Round-trip from

One-way from

Popular in

Cheapest in

Average price

Good round-trip deal

Good one-way deal

Cheapflights Fare Finder

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

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.

Cheapflights Insights

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

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 3 November 2026.

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.

Weekly flight availability from Region of Ontario to London Heathrow Airport

Explore weekly flight availability from Ontario to Heathrow. 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 3 November 2026.

The most flights from CAON to LHR are scheduled on a Monday (31 on average). You will have fewer flight options on Thursday, which is when the least amount of flights are scheduled (15 on average).

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

Airfare is below average for this route at the moment.

Region of Ontario to London Heathrow Airport flights typically cost between £471 and £600 in November.The cheapest return price found within the last 5 days was £409 on Icelandair (17 Nov–22 Nov).

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

Booking 50 days in advance of your planned departure date is, on average, the best time to get cheap flights from Region of Ontario to London Heathrow Airport. The general trend is that the closer you book to the departure date, the more expensive your flight will be.

Related info for your journey

How long is the flight from Region of Ontario to London Heathrow Airport?

What are the cheapest airlines to fly from Region of Ontario to London Heathrow Airport one-way?

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

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

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

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

How can I find direct flights from Ontario to Heathrow?

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

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

Travelling to a place near London Heathrow Airport?

Browse thousands of different options on Cheapflights for your next trip

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Alternative routes for Ontario to Heathrow

See prices for flight routes from nearby airports that may be better suited for you.

Complete your trip

Complete your trip to Heathrow by adding a car hire and/or hotel booking to your travel itinerary.

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Book a non-stop flight to one of these other cities located in England.

Search flights from Ontario to Heathrow by cabin class

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Other flights to Heathrow

Explore flights to Heathrow departing from other origins. Flights are based on user searches made on Cheapflights and were last updated on 3 November 2026.

Ontario and Heathrow flights

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Ontario to Heathrow flights

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Top 7 airlines flying from Ontario to Heathrow

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How does Cheapflights help users find flights from Ontario to Heathrow?

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

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

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

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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 3 November 2026.

Best flights from Ontario to Heathrow
Discover carefully curated flight deals from Ontario to Heathrow that have cost, travel time, and stopovers in mind to ensure you get the best travel experience. Data last updated 3 November 2026.

Direct flights from Ontario to Heathrow
Explore direct flight options from Ontario to Heathrow based on user searches, and compare prices and availability for your desired travel dates. Data last updated 3 November 2026.

Last-minute flights from Ontario to Heathrow
Discover last-minute flight deals from Ontario to Heathrow. Data last updated 3 November 2026 and is based on user searches.

One-way flights from Ontario to Heathrow
Search for one-way flight options from Ontario to Heathrow. Find affordable one-way fares based on user searches. Data last updated 3 November 2026.

Region of Ontario to London Heathrow Airport flights typically cost between £471 and £600 in November.
The cheapest return price found within the last 5 days was £409 on Icelandair (17 Nov–22 Nov).