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

Air Transat, British Airways, and Air Canada can get you from London to Region of Ontario in just under 8h 20m. Your travel time can differ by up to 4h 40m. There are 3563 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 (£148), KLM (£182), and Air Transat (£209).

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 Heathrow - Toronto Island or London Gatwick - Toronto Pearson Intl.

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

The cheapest flight price from London to Region of Ontario is £310. On average you can expect to pay £1,054. The most popular route, (London Heathrow - Toronto Pearson Intl), can usually be booked for £374.

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.

£274+ 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 30 October 2026.

Mon 23/1106:35 -

2 stops16h 40m

Sun 29/1119:40 -

2 stops21h 30m

Deal found 26/10£364

Mon 23/1106:10 -

2 stops17h 05m

Sun 29/1119:40 -

2 stops21h 30m

Deal found 26/10£365

Tue 24/1107:45 -

2 stops15h 30m

Sun 29/1119:40 -

2 stops21h 30m

Deal found 25/10£367

Thu 26/1106:45 -

2 stops16h 30m

Thu 3/1219:40 -

2 stops22h 35m

Deal found 29/10£367

Thu 10/1212:15 -

1 stop11h 00m

Sun 13/1219:40 -

1 stop10h 10m

Deal found 25/10£368

Thu 12/1106:15 -

2 stops17h 00m

Fri 27/1119:40 -

2 stops17h 40m

Deal found 28/10£370

Thu 12/1106:45 -

2 stops16h 30m

Mon 30/1119:40 -

2 stops19h 35m

Deal found 25/10£370

Tue 24/1107:15 -

2 stops16h 00m

Sun 29/1119:40 -

2 stops21h 30m

Deal found 25/10£370

Thu 10/1212:15 -

1 stop11h 00m

Mon 28/1219:15 -

1 stop10h 35m

Deal found 27/10£371

Tue 24/1107:45 -

2 stops15h 30m

Mon 30/1119:40 -

2 stops17h 20m

Deal found 25/10£372

Tue 24/1107:15 -

2 stops16h 00m

Mon 30/1119:40 -

2 stops19h 35m

Deal found 25/10£372

Tue 24/1108:50 -

2 stops14h 25m

Tue 1/1219:40 -

2 stops19h 20m

Deal found 25/10£372

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 30 October 2026.

Mon 23/1111:40 -

Nonstop8h 20m

Thu 10/1221:35 -

Nonstop7h 10m

Deal found 29/10£428

Sun 17/107:50 -

1 stop13h 00m

Sun 31/117:20 -

1 stop13h 05m

Deal found 29/10£433

Sat 5/1211:10 -

1 stop12h 09m

Mon 14/1215:35 -

1 stop9h 55m

Deal found 29/10£447

Thu 14/107:15 -

1 stop33h 55m

Thu 28/118:45 -

1 stop20h 45m

Deal found 29/10£451

Mon 8/307:30 -

2 stops15h 29m

Mon 15/314:50 -

2 stops14h 20m

Deal found 26/10£488

Sat 16/116:35 -

1 stop26h 50m

Tue 26/117:30 -

1 stop11h 20m

Deal found 29/10£507

Fri 27/1108:40 -

1 stop12h 00m

Fri 11/1214:35 -

2 stops14h 20m

Deal found 29/10£511

Wed 28/407:05 -

2 stops13h 35m

Wed 19/512:10 -

2 stops16h 25m

Deal found 28/10£561

Wed 20/110:00 -

1 stop10h 00m

Wed 10/217:10 -

1 stop17h 35m

Deal found 26/10£630

Sat 21/1109:05 -

2 stops15h 51m

Sat 28/1112:30 -

2 stops14h 20m

Deal found 26/10£666

Fri 26/210:55 -

1 stop36h 25m

Thu 4/320:15 -

1 stop32h 40m

Deal found 26/10£726

Fri 27/1111:40 -

Nonstop8h 20m

Wed 9/1221:35 -

Nonstop7h 10m

Deal found 28/10£429

Thu 14/108:50 -

1 stop12h 00m

Fri 29/117:20 -

1 stop16h 15m

Deal found 29/10£433

Thu 14/109:00 -

1 stop11h 04m

Fri 5/208:30 -

1 stop17h 40m

Deal found 29/10£468

Tue 27/419:35 -

1 stop25h 15m

Tue 11/518:05 -

Nonstop7h 10m

Deal found 29/10£435

Sun 29/1116:50 -

2 stops27h 05m

Sun 6/1218:15 -

2 stops18h 50m

Deal found 29/10£507

Fri 11/1216:20 -

1 stop31h 37m

Sat 9/115:20 -

1 stop10h 20m

Deal found 27/10£510

Wed 27/109:50 -

1 stop11h 00m

Sun 31/118:05 -

Nonstop7h 10m

Deal found 29/10£438

Mon 18/110:40 -

1 stop15h 35m

Mon 15/216:15 -

2 stops18h 30m

Deal found 27/10£543

Sat 26/1206:30 -

2 stops21h 29m

Wed 6/106:10 -

1 stop19h 40m

Deal found 25/10£552

Thu 26/1106:00 -

2 stops21h 36m

Thu 3/1211:15 -

2 stops17h 05m

Deal found 29/10£518

Fri 11/1207:15 -

1 stop34h 15m

Sun 10/120:15 -

1 stop16h 45m

Deal found 28/10£522

Fri 13/1107:30 -

2 stops19h 07m

Mon 14/1219:44 -

1 stop10h 06m

Deal found 27/10£546

Thu 12/1119:55 -

2 stops54h 46m

Sun 15/1122:45 -

1 stop18h 55m

Deal found 26/10£549

Wed 20/111:40 -

1 stop11h 14m

Thu 11/217:40 -

1 stop11h 05m

Deal found 26/10£561

Mon 23/1106:30 -

1 stop14h 10m

Mon 30/1112:15 -

1 stop14h 30m

Deal found 25/10£574

Tue 27/417:25 -

1 stop25h 05m

Tue 11/523:40 -

1 stop19h 00m

Deal found 29/10£522

Tue 3/1113:00 -

1 stop13h 36m

Wed 17/308:20 -

1 stop8h 40m

Deal found 29/10£525

Thu 26/1107:30 -

2 stops19h 26m

Thu 3/1206:00 -

2 stops19h 40m

Deal found 29/10£546

Sun 17/121:25 -

2 stops46h 55m

Mon 25/116:15 -

2 stops18h 30m

Deal found 29/10£555

Find flight deals from London to Ontario

Round-trip from	£364
One-way from	£274
Popular in	August
Cheapest in	February
Average price	£445
Good round-trip deal	£370 or less
Good one-way deal	£274 or less

23/11-29/11
4 total stops
38h 10m total
London to Ontario

Search Deals

13/1-31/12
1 total stop
22h 50m 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

LGW London Gatwick - YYZ Toronto Pearson Intl

LGWYYZ

London Gatwick

Fri 11/12

11:10-12:30

1 stop30h 20m

Toronto Pearson Intl

Wed 31/12

00:00-06:00

Nonstop0h 00m

£274

LondonToronto

LTN London Luton - YYZ Toronto Pearson Intl

LTNYYZ

London Luton

Fri 27/11

07:15-12:30

1 stop34h 15m

Toronto Pearson Intl

Wed 31/12

00:00-06:00

Nonstop0h 00m

£277

LondonToronto

LGW London Gatwick - YTZ Toronto Island

LGWYTZ

London Gatwick

Wed 18/11

16:45-18:04

2 stops30h 19m

Toronto Island

Wed 31/12

00:00-06:00

Nonstop0h 00m

£280

LondonToronto

STN London Stansted - YYZ Toronto Pearson Intl

STNYYZ

London Stansted

Sun 17/1

06:20-21:15

3 stops19h 55m

Toronto Pearson Intl

Wed 31/12

00:00-06:00

Nonstop0h 00m

£281

LondonToronto

STN London Stansted - YYZ Toronto Pearson Intl

STNYYZ

London Stansted

Fri 27/11

06:30-12:30

1 stop35h 00m

Toronto Pearson Intl

Wed 31/12

00:00-06:00

Nonstop0h 00m

£286

LondonToronto

LTN London Luton - YYZ Toronto Pearson Intl

LTNYYZ

London Luton

Sun 17/1

13:40-14:05

1 stop29h 25m

Toronto Pearson Intl

Wed 31/12

00:00-06:00

Nonstop0h 00m

£287

LondonToronto

LTN London Luton - YYZ Toronto Pearson Intl

LTNYYZ

London Luton

Sun 8/11

18:40-14:05

1 stop24h 25m

Toronto Pearson Intl

Wed 31/12

00:00-06:00

Nonstop0h 00m

£292

LondonToronto

LHR London Heathrow - YYZ Toronto Pearson Intl

LHRYYZ

London Heathrow

Mon 15/2

20:05-15:55

1 stop24h 50m

Toronto Pearson Intl

Wed 31/12

00:00-06:00

Nonstop0h 00m

£312

LondonToronto

LHR London Heathrow - YYZ Toronto Pearson Intl

LHRYYZ

London Heathrow

Mon 7/12

06:35-23:26

2 stops21h 51m

Toronto Pearson Intl

Wed 31/12

00:00-06:00

Nonstop0h 00m

£332

LondonToronto

LHR London Heathrow - YYZ Toronto Pearson Intl

LHRYYZ

London Heathrow

Thu 10/12

09:30-23:26

2 stops18h 56m

Toronto Pearson Intl

Wed 31/12

00:00-06:00

Nonstop0h 00m

£332

Flights are sorted by cheapest return flights first.

Deals found on 26/10

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.

STN-YYZ

LTN-YYZ

LGW-YYZ

LHR-YYZ

LHR-YTZ

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

STN-YYZ

LTN-YYZ

LGW-YYZ

LHR-YYZ

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 £411). Flying from London to Region of Ontario in August is currently the most expensive (average of £620). 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 £380 and £492 in November.
The cheapest return price found within the last 5 days was £364 on Multiple Airlines (23 Nov–29 Nov).

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

Booking 90 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

584 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

584 reviews

Air Transat

7.7

Good

584 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

698 reviews

Air Transat

7.7

Good

584 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

11,832 reviews

Air Transat

7.7

Good

584 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

6.9

Okay

764 reviews

Air Transat

7.7

Good

584 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

8,298 reviews

Air Transat

7.7

Good

584 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?
Air Transat, British Airways, and Air Canada can get you from London to Region of Ontario in just under 8h 20m. Your travel time can differ by up to 4h 40m. There are 3563 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 (£148), KLM (£182), and Air Transat (£209).
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 Heathrow - Toronto Island or London Gatwick - Toronto Pearson Intl.
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 £310. On average you can expect to pay £1,054. The most popular route, (London Heathrow - Toronto Pearson Intl), can usually be booked for £374.
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 £411). Flying from London to Region of Ontario in August is currently the most expensive (average of £620). 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

Complete your trip

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Alternative routes for London to Ontario

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Edinburgh to Toronto Island flights

London City to Edmonton flights

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Stansted to Halifax flights

Birmingham to Vancouver Intl flights

Birmingham to Pearson Intl flights

Gatwick to Victoria flights

Top 10 airlines flying from London to Ontario

Airline	Cheapest	Average	Flexibility	On-time
Icelandair	Cheapest£257	Average£420	FlexibilityNo cancel fee	On-time76%	Search Icelandair flights
ITA Airways	Cheapest£266	Average£677	FlexibilityNo cancel fee	On-time81%	Search ITA Airways flights
Finnair	Cheapest£285	Average£565	FlexibilityNo cancel fee	On-time76%	Search Finnair flights
Air Canada	Cheapest£321	Average£599	FlexibilityNo cancel fee	On-time67%	Search Air Canada flights
Virgin Atlantic	Cheapest£338	Average£552	FlexibilityNo cancel fee	On-time72%	Search Virgin Atlantic flights
Air Transat	Cheapest£342	Average£514	FlexibilityNo cancel fee	On-time50%	Search Air Transat flights
Lufthansa	Cheapest£359	Average£568	FlexibilityNo cancel fee	On-time76%	Search Lufthansa flights
British Airways	Cheapest£362	Average£538	FlexibilityNo cancel fee	On-time70%	Search British Airways flights
WestJet	Cheapest£363	Average£558	FlexibilityNo cancel fee	On-time60%	Search WestJet flights
TAP AIR PORTUGAL	Cheapest£363	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 £274

This is the cheapest retur flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 13/1. 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 30 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 30 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 30 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 30 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 30 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 30 October 2026.

Last-minute flights from London to OntarioDiscover last-minute flight deals from London to Ontario. Data last updated 30 October 2026 and is based on user searches.

Discover last-minute flight deals from London to Ontario. Data last updated 30 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 30 October 2026.

Search for one-way flight options from London to Ontario. Find affordable one-way fares based on user searches. Data last updated 30 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 30 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 £380 and £492 in November.The cheapest return price found within the last 5 days was £364 on Multiple Airlines (23 Nov–29 Nov).

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

Booking 90 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 30 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 30 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 30 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 30 October 2026.

Last-minute flights from London to Ontario
Discover last-minute flight deals from London to Ontario. Data last updated 30 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 30 October 2026.

London to Region of Ontario flights typically cost between £380 and £492 in November.
The cheapest return price found within the last 5 days was £364 on Multiple Airlines (23 Nov–29 Nov).