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

Icelandair, Delta, and British Airways can get you from London to Region of Ontario in just under 7h 55m. Your travel time can differ by up to 5h 05m. There are 3543 mi between London and Region of Ontario. This flight may include one or multiple stops.

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

The cheapet airlines for a one-way flight from London to Region of Ontario are Icelandair (£147), KLM (£182), and Air Transat (£208).

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 to Region of Ontario?

The most popular route from London to Region of Ontario is London Heathrow - Toronto Pearson Intl. You may also consider London Gatwick - Toronto Pearson Intl or London Heathrow - Toronto Island.

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

The cheapest flight price from London to Region of Ontario is £305. On average you can expect to pay £1,024. The most popular route, (London Heathrow - Toronto Pearson Intl), can usually be booked for £349.

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

The top 3 most reliable airlines when flying from London to Region of Ontario are MEA (88%), Singapore Airlines (86%) and Egyptair (85%).

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

Air Canada, Lufthansa and Air Transat are the most popular airlines when flying from London to Region of Ontario.

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

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

How can I find direct flights from London to Ontario?

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

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

Yes. Cheapflights offers flight deals from London 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.

£262+ Cheap Flights from London to Ontario

Cheap flight deals from London to Ontario

Enter your travel dates to find the best prices.

Cheapest

Best

Direct

Last-minute

One-way

Cheapest flights from London to Ontario
Explore the most affordable flight options available from London to Ontario. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 22 October 2026.

Fri 6/1106:35 -

1 stop13h 20m

Thu 12/1120:25 -

1 stop14h 55m

Deal found 18/10£356

Thu 3/1209:30 -

1 stop11h 45m

Wed 9/1223:00 -

Nonstop7h 20m

Deal found 17/10£358

Fri 4/1220:35 -

1 stop26h 40m

Sat 12/1219:40 -

1 stop18h 50m

Deal found 19/10£359

Fri 20/1106:30 -

1 stop17h 45m

Mon 11/121:45 -

Nonstop7h 05m

Deal found 21/10£360

Fri 6/1106:35 -

1 stop13h 20m

Thu 12/1123:00 -

Nonstop7h 20m

Deal found 18/10£361

Tue 10/1120:35 -

1 stop26h 40m

Tue 17/1119:40 -

1 stop10h 10m

Deal found 21/10£362

Wed 11/1111:55 -

1 stop11h 20m

Tue 15/1219:40 -

1 stop10h 15m

Deal found 18/10£362

Wed 11/1112:15 -

1 stop11h 00m

Thu 10/1219:40 -

1 stop10h 10m

Deal found 21/10£362

Wed 11/1111:55 -

1 stop11h 20m

Sun 15/1119:40 -

1 stop10h 15m

Deal found 21/10£362

Thu 26/1112:15 -

1 stop11h 00m

Sun 29/1119:40 -

1 stop10h 10m

Deal found 20/10£363

Thu 3/1212:15 -

1 stop11h 00m

Wed 9/1219:40 -

1 stop18h 50m

Deal found 19/10£364

Thu 26/1112:15 -

1 stop11h 00m

Tue 1/1219:40 -

1 stop18h 50m

Deal found 21/10£365

Best flights from London to Ontario
Discover carefully curated flight deals from London to Ontario that have cost, travel time, and stopovers in mind to ensure you get the best travel experience. Data last updated 22 October 2026.

Fri 27/1112:15 -

1 stop11h 00m

Wed 2/1219:40 -

1 stop18h 50m

Deal found 17/10£388

Sun 22/1108:40 -

2 stops14h 11m

Sat 5/1210:45 -

2 stops16h 05m

Deal found 17/10£411

Mon 2/1116:10 -

Nonstop7h 55m

Mon 9/1121:45 -

Nonstop7h 05m

Deal found 17/10£415

Thu 26/1107:50 -

1 stop13h 00m

Wed 2/1222:20 -

Nonstop7h 05m

Deal found 21/10£420

Mon 14/1216:10 -

Nonstop7h 55m

Sat 9/112:25 -

1 stop13h 00m

Deal found 17/10£433

Sat 14/1111:40 -

Nonstop8h 20m

Sat 21/1121:35 -

Nonstop7h 10m

Deal found 18/10£435

Wed 13/110:00 -

1 stop14h 45m

Wed 27/106:00 -

2 stops22h 00m

Deal found 17/10£438

Sat 14/1107:30 -

2 stops18h 16m

Sat 21/1121:10 -

1 stop19h 10m

Deal found 17/10£456

Wed 2/1209:00 -

2 stops14h 45m

Wed 9/1219:20 -

1 stop11h 00m

Deal found 19/10£490

Sat 12/1215:35 -

2 stops29h 05m

Wed 30/1217:10 -

2 stops16h 25m

Deal found 19/10£496

Fri 6/1116:40 -

2 stops34h 01m

Tue 10/1117:30 -

2 stops34h 55m

Deal found 17/10£580

Thu 5/1108:30 -

2 stops14h 21m

Wed 17/312:30 -

2 stops25h 20m

Deal found 21/10£634

Mon 8/310:55 -

1 stop36h 25m

Wed 17/321:15 -

1 stop32h 40m

Deal found 18/10£744

Fri 6/1107:30 -

2 stops15h 19m

Tue 10/1112:00 -

2 stops13h 40m

Deal found 17/10£456

Wed 25/1110:00 -

1 stop14h 45m

Wed 2/1206:00 -

2 stops22h 00m

Deal found 18/10£461

Fri 6/1109:00 -

2 stops13h 51m

Fri 13/1106:45 -

2 stops20h 25m

Deal found 19/10£466

Sat 14/1111:40 -

Nonstop8h 20m

Thu 26/1121:35 -

Nonstop7h 10m

Deal found 20/10£488

Wed 16/1206:40 -

1 stop14h 00m

Wed 6/117:10 -

2 stops16h 25m

Deal found 21/10£497

Thu 10/1207:30 -

2 stops15h 19m

Sun 13/1212:00 -

2 stops13h 40m

Deal found 19/10£456

Tue 1/1209:00 -

2 stops14h 45m

Tue 8/1219:20 -

1 stop11h 00m

Deal found 17/10£506

Thu 7/110:10 -

1 stop12h 16m

Fri 8/118:10 -

1 stop11h 20m

Deal found 18/10£510

Fri 11/1211:20 -

1 stop16h 47m

Mon 11/112:10 -

1 stop14h 55m

Deal found 20/10£478

Sat 7/1107:30 -

2 stops15h 19m

Sat 14/1114:57 -

2 stops14h 53m

Deal found 18/10£456

Fri 6/1111:55 -

1 stop11h 20m

Thu 12/1119:40 -

1 stop10h 15m

Deal found 21/10£557

Thu 3/1209:00 -

2 stops29h 55m

Thu 10/1210:35 -

2 stops24h 45m

Deal found 19/10£508

Thu 26/1106:00 -

2 stops17h 40m

Sun 29/1119:20 -

2 stops30h 10m

Deal found 17/10£510

Mon 11/111:40 -

1 stop11h 18m

Fri 22/113:45 -

1 stop15h 00m

Deal found 17/10£544

Fri 11/1210:00 -

2 stops18h 07m

Thu 14/109:45 -

2 stops25h 00m

Deal found 19/10£502

Mon 8/319:25 -

2 stops28h 20m

Sun 14/310:35 -

1 stop20h 45m

Deal found 18/10£523

Fri 13/1109:00 -

2 stops13h 51m

Sat 28/1112:30 -

2 stops14h 20m

Deal found 20/10£642

Find flight deals from London to Ontario

Round-trip from	£354
One-way from	£262
Popular in	August
Cheapest in	February
Average price	£449
Good round-trip deal	£369 or less
Good one-way deal	£296 or less

Lufthansa
2/12-8/12
1 total stop
22h 35m total
London to Ontario

Search Deals

10/12-31/12
1 total stop
34h 00m total
London to Ontario

Search Deals

Highest demand for flights based on searches. 10% potential increase in price (£42 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 October 2026

Search Deals

Price to beat on a round-trip flight from London (LON) to Ontario.

Search Deals

Price to beat on a one-way flight from London (LON) to Ontario.

Search Deals

Fly from

Fly to

Route

Depart

Return

Price

Cheapest return flight

LondonToronto

LTN London Luton - YYZ Toronto Pearson Intl

LTNYYZ

London Luton

Fri 11/12

07:15-12:30

1 stop34h 15m

Toronto Pearson Intl

Wed 31/12

00:00-06:00

Nonstop0h 00m

£275

LondonToronto

LGW London Gatwick - YTZ Toronto Island

LGWYTZ

London Gatwick

Tue 24/11

16:45-18:04

2 stops30h 19m

Toronto Island

Wed 31/12

00:00-06:00

Nonstop0h 00m

£284

LondonToronto

LTN London Luton - YYZ Toronto Pearson Intl

LTNYYZ

London Luton

Sat 7/11

16:00-19:50

2 stops32h 50m

Toronto Pearson Intl

Wed 31/12

00:00-06:00

Nonstop0h 00m

£288

LondonToronto

LGW London Gatwick - YYZ Toronto Pearson Intl

LGWYYZ

London Gatwick

Mon 16/11

07:00-14:05

1 stop12h 05m

Toronto Pearson Intl

Wed 31/12

00:00-06:00

Nonstop0h 00m

£288

LondonToronto

LGW London Gatwick - YTZ Toronto Island

LGWYTZ

London Gatwick

Fri 13/11

09:00-10:10

2 stops30h 10m

Toronto Island

Wed 31/12

00:00-06:00

Nonstop0h 00m

£289

LondonToronto

LGW London Gatwick - YYZ Toronto Pearson Intl

LGWYYZ

London Gatwick

Wed 2/12

18:40-16:15

1 stop26h 35m

Toronto Pearson Intl

Wed 31/12

00:00-06:00

Nonstop0h 00m

£303

LondonToronto

LGW London Gatwick - YYZ Toronto Pearson Intl

LGWYYZ

London Gatwick

Sat 16/1

09:05-16:15

1 stop12h 10m

Toronto Pearson Intl

Wed 31/12

00:00-06:00

Nonstop0h 00m

£310

LondonToronto

LGW London Gatwick - YYZ Toronto Pearson Intl

LGWYYZ

London Gatwick

Fri 15/1

18:40-16:15

1 stop26h 35m

Toronto Pearson Intl

Wed 31/12

00:00-06:00

Nonstop0h 00m

£310

LondonToronto

LGW London Gatwick - YYZ Toronto Pearson Intl

LGWYYZ

London Gatwick

Mon 2/11

11:40-15:00

Nonstop8h 20m

Toronto Pearson Intl

Wed 31/12

00:00-06:00

Nonstop0h 00m

£317

LondonToronto

LGW London Gatwick - YYZ Toronto Pearson Intl

LGWYYZ

London Gatwick

Thu 7/1

11:40-15:00

Nonstop8h 20m

Toronto Pearson Intl

Wed 31/12

00:00-06:00

Nonstop0h 00m

£318

Flights are sorted by cheapest return flights first.

Deals found on 18/10

Showing 1-10 of 60 resultsSorted by cheapest first

...

Best time to book a flight from London to Ontario

Have a flexible travel schedule? Discover the best time to fly to Ontario from London with our price prediction graph.

LGW-YYZ

LHR-YYZ

LTN-YYZ

LGW-YTZ

LHR-YQG

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 to Ontario

LON-CAON

LGW-YYZ

LHR-YYZ

LTN-YYZ

LGW-YTZ

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

Currently, February is the cheapest month in which you can book a flight from London to Region of Ontario (average of £409). Flying from London to Region of Ontario in August is currently the most expensive (average of £617). 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 LON to ON?

When flying from London 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.

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

Airfare is below average for this route at the moment.

London to Region of Ontario flights typically cost between £392 and £529 in December.
The cheapest return price found within the last 5 days was £354 on Multiple Airlines (2 Dec–8 Dec).

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

Booking 73 days in advance of your planned departure date is, on average, the best time to get cheap flights from London to Region of Ontario. The general trend is that the closer you book to the departure date, the more expensive your flight will be.

Reviews of airlines servicing Ontario

Read reviews from past customers who have flown with Air Transat,Virgin Atlantic, andAir Canada from London to Ontario. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.

Air Transat

7.7

Good

583 reviews

Check prices

Reviews

1 / 20

10.0

Excellent

Liam,Jun 2025

GLA - YYZ

To and from Glasgow with Air Transat. Excellent flights, food, service. Nothing but praise.

Air Transat

7.7

Good

583 reviews

Air Transat

7.7

Good

583 reviews

Check prices

Reviews

1 / 20

10.0

Excellent

Liam,Jun 2025

GLA - YYZ

To and from Glasgow with Air Transat. Excellent flights, food, service. Nothing but praise.

Virgin Atlantic

7.5

Good

697 reviews

Air Transat

7.7

Good

583 reviews

Check prices

Reviews

1 / 20

10.0

Excellent

Liam,Jun 2025

GLA - YYZ

To and from Glasgow with Air Transat. Excellent flights, food, service. Nothing but praise.

Air Canada

7.1

Good

11,790 reviews

Air Transat

7.7

Good

583 reviews

Check prices

Reviews

1 / 20

10.0

Excellent

Liam,Jun 2025

GLA - YYZ

To and from Glasgow with Air Transat. Excellent flights, food, service. Nothing but praise.

Icelandair

7.0

Good

762 reviews

Air Transat

7.7

Good

583 reviews

Check prices

Reviews

1 / 20

10.0

Excellent

Liam,Jun 2025

GLA - YYZ

To and from Glasgow with Air Transat. Excellent flights, food, service. Nothing but praise.

Lufthansa

6.8

Okay

8,285 reviews

Air Transat

7.7

Good

583 reviews

Check prices

Reviews

1 / 20

10.0

Excellent

Liam,Jun 2025

GLA - YYZ

To and from Glasgow with Air Transat. Excellent flights, food, service. Nothing but praise.

Related info for your journey

How long is the flight from London to Region of Ontario?
Icelandair, Delta, and British Airways can get you from London to Region of Ontario in just under 7h 55m. Your travel time can differ by up to 5h 05m. There are 3543 mi between London and Region of Ontario. This flight may include one or multiple stops.
What are the cheapest airlines to fly from London to Region of Ontario one-way?
The cheapet airlines for a one-way flight from London to Region of Ontario are Icelandair (£147), KLM (£182), and Air Transat (£208).
What are the most popular routes from London to Region of Ontario?
The most popular route from London to Region of Ontario is London Heathrow - Toronto Pearson Intl. You may also consider London Gatwick - Toronto Pearson Intl or London Heathrow - Toronto Island.
What are the most reliable airlines from London to Region of Ontario?
The top 3 most reliable airlines when flying from London to Region of Ontario are MEA (88%), Singapore Airlines (86%) and Egyptair (85%).
What are the cheapest flights from London to Region of Ontario?
The cheapest flight price from London to Region of Ontario is £305. On average you can expect to pay £1,024. The most popular route, (London Heathrow - Toronto Pearson Intl), can usually be booked for £349.
Can I find deals for flights from London to Ontario that include hotel bookings?
Yes. In addition to deals on London to Ontario flights, Cheapflights offers holiday packages that include both flights and hotel.
How can I find direct flights from London to Ontario?
After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from London to Ontario.
Can I find deals for business class flights from London to Ontario?
Yes. Cheapflights offers flight deals from London 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 to Region of Ontario?
Currently, February is the cheapest month in which you can book a flight from London to Region of Ontario (average of £409). Flying from London to Region of Ontario in August is currently the most expensive (average of £617). 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

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Alternative routes for London to Ontario

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Gatwick to Abbotsford flights

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Stansted to Ottawa flights

Heathrow to London flights

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Manchester to Halifax flights

Top 10 airlines flying from London to Ontario

Airline	Cheapest	Average	Flexibility	On-time
Icelandair	Cheapest£256	Average£425	FlexibilityNo cancel fee	On-time76%	Search Icelandair flights
ITA Airways	Cheapest£265	Average£675	FlexibilityNo cancel fee	On-time81%	Search ITA Airways flights
Finnair	Cheapest£284	Average£563	FlexibilityNo cancel fee	On-time76%	Search Finnair flights
Virgin Atlantic	Cheapest£338	Average£551	FlexibilityNo cancel fee	On-time72%	Search Virgin Atlantic flights
Air Canada	Cheapest£340	Average£597	FlexibilityNo cancel fee	On-time67%	Search Air Canada flights
Air Transat	Cheapest£341	Average£515	FlexibilityNo cancel fee	On-time50%	Search Air Transat flights
Lufthansa	Cheapest£358	Average£566	FlexibilityNo cancel fee	On-time76%	Search Lufthansa flights
British Airways	Cheapest£361	Average£534	FlexibilityNo cancel fee	On-time70%	Search British Airways flights
WestJet	Cheapest£362	Average£556	FlexibilityNo cancel fee	On-time60%	Search WestJet flights
TAP AIR PORTUGAL	Cheapest£362	Average£568	FlexibilityNo cancel fee	On-timeN/A	Search TAP AIR PORTUGAL flights

Fly with Cheapflights

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

When you search for this flight from London to Ontario, Cheapflights searches on 900+ travel sites to save you time finding great flight deals online. Additionally, we offer filter features so you can choose a preferred cabin class or airline, see different price ranges, and much more so you can book the flight for you.

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

Millions of users choose and trust Cheapflights to book the best flight deals from London 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 London to Ontario with no change fees?

Certainly. Search results for flights to Ontario from London shown to you on Cheapflights can be narrowed down with different useful search filters, which includes flexible booking options.

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

Of course! You can now track prices for flights from London to Ontario and get an alert from Cheapflights when they change. Have a valid email address ready and click the bell icon next to the flight deals above to set up your price alerts.

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Cheap flights from London to Ontario from £262

This is the cheapest retur flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 10/12. Fares are subject to change and may not be available on all flights or dates of travel.

Cheap flight deals from London to Ontario

Cheapest flights from London to OntarioExplore the most affordable flight options available from London to Ontario. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 22 October 2026.

Explore the most affordable flight options available from London to Ontario. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 22 October 2026.

Best flights from London to OntarioDiscover carefully curated flight deals from London to Ontario that have cost, travel time, and stopovers in mind to ensure you get the best travel experience. Data last updated 22 October 2026.

Discover carefully curated flight deals from London to Ontario that have cost, travel time, and stopovers in mind to ensure you get the best travel experience. Data last updated 22 October 2026.

Direct flights from London to OntarioExplore direct flight options from London to Ontario based on user searches, and compare prices and availability for your desired travel dates. Data last updated 22 October 2026.

Explore direct flight options from London to Ontario based on user searches, and compare prices and availability for your desired travel dates. Data last updated 22 October 2026.

Last-minute flights from London to OntarioDiscover last-minute flight deals from London to Ontario. Data last updated 22 October 2026 and is based on user searches.

Discover last-minute flight deals from London to Ontario. Data last updated 22 October 2026 and is based on user searches.

One-way flights from London to OntarioSearch for one-way flight options from London to Ontario. Find affordable one-way fares based on user searches. Data last updated 22 October 2026.

Search for one-way flight options from London to Ontario. Find affordable one-way fares based on user searches. Data last updated 22 October 2026.

Find flight deals from London to Ontario

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 London to Ontario that are best for you.

Best time to book a flight from London to Ontario

Have a flexible travel schedule? Discover the best time to fly to Ontario from London with our price prediction graph.

Cheapflights Insights

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

What is the cheapest time of day to fly from LON to ON?

Find hourly flight availability from London 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 22 October 2026.

When flying from London 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.

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

Airfare is below average for this route at the moment.

London to Region of Ontario flights typically cost between £392 and £529 in December.The cheapest return price found within the last 5 days was £354 on Multiple Airlines (2 Dec–8 Dec).

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

Booking 73 days in advance of your planned departure date is, on average, the best time to get cheap flights from London to Region of Ontario. The general trend is that the closer you book to the departure date, the more expensive your flight will be.

Reviews of airlines servicing Ontario

Read reviews from past customers who have flown with Air Transat,Virgin Atlantic, andAir Canada from London to Ontario. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.

Related info for your journey

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

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

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

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

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

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

How can I find direct flights from London to Ontario?

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

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

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 London to Ontario

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

Complete your trip

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

Direct flights to Canada

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

Search flights from London to Ontario by cabin class

Find flights from London to Ontario, based on your preferred cabin class, be it economy, premium economy, business, or first class.

London and Ontario flights

Browse other London and Ontario flight options. Last updated on 22 October 2026.

Popular flight searches

Check out other popular destinations found by fellow travellers in 2026

London to Ontario flights

Consider these flights travelling from London to Ontario.

Top 10 airlines flying from London to Ontario

Fly with Cheapflights

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

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

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

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

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Cheapest flights from London to Ontario
Explore the most affordable flight options available from London to Ontario. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 22 October 2026.

Best flights from London to Ontario
Discover carefully curated flight deals from London to Ontario that have cost, travel time, and stopovers in mind to ensure you get the best travel experience. Data last updated 22 October 2026.

Direct flights from London to Ontario
Explore direct flight options from London to Ontario based on user searches, and compare prices and availability for your desired travel dates. Data last updated 22 October 2026.

Last-minute flights from London to Ontario
Discover last-minute flight deals from London to Ontario. Data last updated 22 October 2026 and is based on user searches.

One-way flights from London to Ontario
Search for one-way flight options from London to Ontario. Find affordable one-way fares based on user searches. Data last updated 22 October 2026.

London to Region of Ontario flights typically cost between £392 and £529 in December.
The cheapest return price found within the last 5 days was £354 on Multiple Airlines (2 Dec–8 Dec).