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Cheap flights from Ontario to London from C$ 309

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Ontario to London departing on 18/1. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
1 adult

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Find the cheapest flights from Ontario to London

Cheap round-trip flights

Enter your travel dates to find the best prices.
Icelandair Logo
7:40 p.m. - 7:30 p.m.YYZ-LHR
18h 50m1 stop
Icelandair Logo
12:15 p.m. - 6:15 p.m.LHR-YYZ
11h 00m1 stop
C$ 731Icelandair
Find Deal
Mon, 10 Nov - Tue, 25 Nov
Icelandair Logo
7:40 p.m. - 10:50 a.m.YYZ-LHR
10h 10m1 stop
Icelandair Logo
12:15 p.m. - 6:15 p.m.LHR-YYZ
11h 00m1 stop
C$ 732Icelandair
Find Deal
Tue, 18 Nov - Tue, 25 Nov
Icelandair Logo
7:40 p.m. - 7:30 p.m.YYZ-LHR
18h 50m1 stop
Icelandair Logo
8:35 p.m. - 6:15 p.m.LHR-YYZ
26h 40m1 stop
C$ 734Icelandair
Find Deal
Thu, 8 Jan - Tue, 20 Jan
TAP AIR PORTUGAL Logo
5:35 p.m. - 12:40 p.m.YYZ-LHR
14h 05m1 stop
TAP AIR PORTUGAL Logo
6:00 a.m. - 2:25 p.m.LHR-YYZ
13h 25m1 stop
C$ 739TAP AIR PORTUGAL
Find Deal
Tue, 27 Jan - Sun, 1 Feb
TAP AIR PORTUGAL Logo
5:30 p.m. - 12:40 p.m.YYZ-LHR
14h 10m1 stop
TAP AIR PORTUGAL Logo
1:40 p.m. - 3:20 p.m.LHR-YYZ
30h 40m1 stop
C$ 741TAP AIR PORTUGAL
Find Deal
Sun, 23 Nov - Mon, 8 Dec
Air Canada Logo
6:10 p.m. - 6:30 a.m.YYZ-LHR
7h 20mdirect
Air Canada Logo
9:00 a.m. - 4:10 p.m.LHR-YYZ
12h 10m1 stop
C$ 781Air Canada
Find Deal
Thu, 13 Nov - Fri, 28 Nov
Air Canada Logo
11:00 p.m. - 11:20 a.m.YYZ-LHR
7h 20mdirect
Air Canada Logo
9:00 a.m. - 4:10 p.m.LHR-YYZ
12h 10m1 stop
C$ 783Air Canada
Find Deal
Sun, 9 Nov - Wed, 19 Nov
Scandinavian Airlines Logo
6:00 a.m. - 9:20 a.m.YYZ-LHR
22h 20m2 stops
Scandinavian Airlines Logo
7:50 p.m. - 3:40 p.m.LHR-YYZ
24h 50m2 stops
C$ 784Scandinavian Airlines
Find Deal
Mon, 9 Feb - Thu, 12 Feb
Multiple Airlines Logo
6:10 p.m. - 6:30 a.m.YYZ-LHR
7h 20mdirect
Multiple Airlines Logo
6:40 p.m. - 4:05 p.m.LHR-YYZ
26h 25m1 stop
C$ 790Multiple Airlines
Find Deal
Mon, 9 Feb - Mon, 16 Feb
Multiple Airlines Logo
5:30 p.m. - 12:40 p.m.YYZ-LHR
14h 10m1 stop
Multiple Airlines Logo
7:50 a.m. - 3:55 p.m.LHR-YYZ
13h 05m1 stop
C$ 792Multiple Airlines
Find Deal
Sun, 16 Nov - Mon, 1 Dec

Icelandair flights from Region of Ontario to London Heathrow Airport

Our best Icelandair deals on Region of Ontario to London Heathrow Airport flight tickets
Icelandair
10 Nov
YYZ7:40 p.m.Toronto Pearson Intl
18h 50m
1 stop
LHR7:30 p.m.London Heathrow
25 Nov
LHR12:15 p.m.London Heathrow
11h 00m
1 stop
YYZ6:15 p.m.Toronto Pearson Intl
C$ 731
Find similar
Icelandair
18 Nov
YYZ7:40 p.m.Toronto Pearson Intl
10h 10m
1 stop
LHR10:50 a.m.London Heathrow
25 Nov
LHR12:15 p.m.London Heathrow
11h 00m
1 stop
YYZ6:15 p.m.Toronto Pearson Intl
C$ 732
Find similar
Icelandair
8 Jan
YYZ7:40 p.m.Toronto Pearson Intl
18h 50m
1 stop
LHR7:30 p.m.London Heathrow
20 Jan
LHR8:35 p.m.London Heathrow
26h 40m
1 stop
YYZ6:15 p.m.Toronto Pearson Intl
C$ 734
Find similar

TAP AIR PORTUGAL flights from Region of Ontario to London Heathrow Airport

Our best TAP AIR PORTUGAL deals on Region of Ontario to London Heathrow Airport flight tickets
TAP AIR PORTUGAL
27 Jan
YYZ5:35 p.m.Toronto Pearson Intl
14h 05m
1 stop
LHR12:40 p.m.London Heathrow
1 Feb
LHR6:00 a.m.London Heathrow
13h 25m
1 stop
YYZ2:25 p.m.Toronto Pearson Intl
C$ 739
Find similar
TAP AIR PORTUGAL
23 Nov
YYZ5:30 p.m.Toronto Pearson Intl
14h 10m
1 stop
LHR12:40 p.m.London Heathrow
8 Dec
LHR1:40 p.m.London Heathrow
30h 40m
1 stop
YYZ3:20 p.m.Toronto Pearson Intl
C$ 740
Find similar
TAP AIR PORTUGAL
5 Nov
YYZ10:45 p.m.Toronto Pearson Intl
13h 45m
1 stop
LHR5:30 p.m.London Heathrow
20 Nov
LHR7:55 p.m.London Heathrow
30h 20m
1 stop
YYZ9:15 p.m.Toronto Pearson Intl
C$ 743
Find similar

momondo Fare Finder

 
Customize your flight search to find flights from Region of Ontario to London Heathrow Airport that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, momondo users made 96,600 searches. Data last updated 13 October 2025.
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

TorontoLondon

YYZ - LHR

YYZLHR

Toronto Pearson Intl

Mon 10/11

7:40 p.m.-7:30 p.m.

1 stop18h 50m

London Heathrow

Tue 25/11

12:15 p.m.-6:15 p.m.

1 stop11h 00m

C$ 731

TorontoLondon

YYZ - LHR

YYZLHR

Toronto Pearson Intl

Tue 18/11

7:40 p.m.-10:50 a.m.

1 stop10h 10m

London Heathrow

Tue 25/11

12:15 p.m.-6:15 p.m.

1 stop11h 00m

C$ 732

TorontoLondon

YYZ - LHR

YYZLHR

Toronto Pearson Intl

Thu 8/1

7:40 p.m.-7:30 p.m.

1 stop18h 50m

London Heathrow

Tue 20/1

8:35 p.m.-6:15 p.m.

1 stop26h 40m

C$ 734

TorontoLondon

YYZ - LHR

YYZLHR

Toronto Pearson Intl

Tue 27/1

5:35 p.m.-12:40 p.m.

1 stop14h 05m

London Heathrow

Sun 1/2

6:00 a.m.-2:25 p.m.

1 stop13h 25m

C$ 739

TorontoLondon

YYZ - LHR

YYZLHR

Toronto Pearson Intl

Sun 23/11

5:30 p.m.-12:40 p.m.

1 stop14h 10m

London Heathrow

Mon 8/12

1:40 p.m.-3:20 p.m.

1 stop30h 40m

C$ 740

TorontoLondon

YYZ - LHR

YYZLHR

Toronto Pearson Intl

Thu 13/11

6:10 p.m.-6:30 a.m.

Nonstop7h 20m

London Heathrow

Fri 28/11

9:00 a.m.-4:10 p.m.

1 stop12h 10m

C$ 781

TorontoLondon

YYZ - LHR

YYZLHR

Toronto Pearson Intl

Sun 9/11

11:00 p.m.-11:20 a.m.

Nonstop7h 20m

London Heathrow

Wed 19/11

9:00 a.m.-4:10 p.m.

1 stop12h 10m

C$ 782

TorontoLondon

YYZ - LHR

YYZLHR

Toronto Pearson Intl

Mon 9/2

6:00 a.m.-9:20 a.m.

2 stops22h 20m

London Heathrow

Thu 12/2

7:50 p.m.-3:40 p.m.

2 stops24h 50m

C$ 784

TorontoLondon

YYZ - LHR

YYZLHR

Toronto Pearson Intl

Mon 9/2

6:10 p.m.-6:30 a.m.

Nonstop7h 20m

London Heathrow

Mon 16/2

6:40 p.m.-4:05 p.m.

1 stop26h 25m

C$ 790

TorontoLondon

YYZ - LHR

YYZLHR

Toronto Pearson Intl

Sun 16/11

5:30 p.m.-12:40 p.m.

1 stop14h 10m

London Heathrow

Mon 1/12

7:50 a.m.-3:55 p.m.

1 stop13h 05m

C$ 792

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
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See travel insights to London from

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

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

What is the cheapest month to fly to London Heathrow Airport?

The month of February is, on average, the cheapest month to fly to London Heathrow Airport from Region of Ontario, with most prices found around C$ 780. If you aren’t able to travel to London Heathrow Airport 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 C$ 802.

What is the cheapest day to depart on your flight to London Heathrow Airport?

According to our data, Sunday is the cheapest day to fly to London Heathrow Airport from Region of Ontario. The lowest ticket price found for a Sunday departure recently was C$ 1,214. Keep in mind that prices can always vary depending on your route and whether or not you are flying domestic or international. When flying out on a Tuesday, the most expensive travel day of the week, you can expect to see flight prices from Region of Ontario to London Heathrow Airport for around C$ 1,371.

What is the cheapest time of day to depart on your flight to London Heathrow Airport?

Our data shows that the cheapest Region of Ontario to London Heathrow Airport flights are usually those with departure times in the morning. Our users have found flights to London Heathrow Airport in the morning for as low as C$ 930. In the afternoon is when there is more demand to fly to London Heathrow Airport, so prices are often more expensive at around C$ 1,342 per ticket.

What is the cheapest Ontario to London Heathrow flight route?

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

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

You are more likely to see cheaper flights to London Heathrow Airport from Region of Ontario when booking weeks ahead of your departure date. In general, you can expect to find flights to London Heathrow Airport for around C$ 936 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to London Heathrow Airport from Region of Ontario for as low as C$ 847 on momondo.

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

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

Can stopping save me money on Region of Ontario to London Heathrow Airport flights?

No. A direct flight is the cheapest option for a flight between Region of Ontario to London Heathrow Airport.

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

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

Best price found

C$ 594

Fastest flight time

6h 25m

Direct flights

Every day
The best one-way flight to London Heathrow Airport from Region of Ontario in the past 72 hours is C$ 594. The best round-trip flight deal from Region of Ontario to London Heathrow Airport found on momondo in the last 72 hours is C$ 981.
The fastest flight from Region of Ontario to London Heathrow Airport takes 6h 25m
Direct flights go from Region of Ontario to London Heathrow Airport every day.
Search flight deals

  • When did momondo last update prices for flights from Ontario to London Heathrow Airport?

    Prices for flights from Ontario to London Heathrow Airport are updated daily.

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

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

    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 Ontario to London Heathrow Airport.

  • What documentation or ID do you need to fly to London Heathrow Airport?

    The travel and health documents required for your trip to London Heathrow Airport can vary based on your itinerary and personal situation. As a rule, consider having multiple documents such as a national ID card or driver’s license, and a passport valid for six-months after you plan to arrive at London Heathrow Airport. We always recommend checking with your airline or a trusted third party such as IATA to get advice.

  • What is the most popular plane model from Region of Ontario to London Heathrow Airport?

Best airlines flying from Region of Ontario to London Heathrow Airport

Compare and see reviews for airlines that fly from Region of Ontario to London Heathrow Airport with momondo
Airline
Rating
Free Cancellation
Price
WestJetPriceFrom C$ 222Free CancellationRating
7.2
3,124 reviews
Search WestJet flights
PLAYPriceFrom C$ 473Free CancellationRating
7.0
103 reviews
Search PLAY flights
WestJet EncorePriceFrom C$ 559Free CancellationRating
0.0
Search WestJet Encore flights
TAP AIR PORTUGALPriceFrom C$ 606Free CancellationRating
7.1
2,009 reviews
Search TAP AIR PORTUGAL flights
Porter AirlinesPriceFrom C$ 638Free CancellationRating
8.0
379 reviews
Search Porter Airlines flights
Air TransatPriceFrom C$ 660Free CancellationRating
7.7
456 reviews
Search Air Transat flights
IcelandairPriceFrom C$ 666Free CancellationRating
7.0
555 reviews
Search Icelandair flights
Air CanadaPriceFrom C$ 718Free CancellationRating
7.1
10,286 reviews
Search Air Canada flights
KLMPriceFrom C$ 719Free CancellationRating
7.7
1,402 reviews
Search KLM flights
LufthansaPriceFrom C$ 722Free CancellationRating
6.8
7,479 reviews
Search Lufthansa flights

Travelling to a place near London?

Book flights to London if you plan to visit one of these locations
Hounslow
Ipswich
Poole
Dartford
Ilford
Swindon
Gatwick
Chelmsford
Wokingham
Slough
Canterbury
Stratford-upon-Avon
Feltham
Hayes
Uxbridge
Wembley
Waterlooville
Newport
Basingstoke
Milton Keynes

Why use momondo?

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

It is quick and easy to find Ontario to London flights on momondo. We search and return numerous flight options from various airlines and agents. You can then use our filters to narrow your search until you have found the most convenient flight to London that suits you.

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

Flights from Ontario to London with flexible booking policies can be found by using the search form above and then selecting our dedicated flexible booking filter, which will highlight only the flights where this policy is applied.

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

Once you have performed a search for Ontario to London flights, momondo helps you find the right one by offering useful filters to narrow down your flight selection. Flights can be filtered by multiple factors such as airline, airport and price; but also by other criteria like aircraft type and payment method.

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

If you are not ready to book a flight from Ontario to London now, use our insights above to find helpful tips or alternatively set up a price alert, where momondo will track prices on flights to London and let you know when they change.

An easier way to manage your London Heathrow Airport trip

We make it super easy to schedule, organize and travel with friends or family. Trips is free — and available to use no matter where you book.
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