Find Cheap Flights to London Heathrow

Depart
Return
1 adult
Adults
18+
Youths
12-17
Children
2-11
Seat Infants
under 2
Lap Infants
under 2
The price shown for each flight will be the average for all passengers including any infants.
Compare vs. KAYAK all | none
Browse Origins:
Browse Destinations:

Dates flexible? Here are the best fares found in the past 48 hours...

Book cheap flights to London Heathrow

(Round-trip)
Depart: Thu 1 Feb 2018 Return: Thu 8 Feb 2018 Trip spans 8 days
C$542
Select
Icelandair
Icelandair
YYZ
LHR
18h 30m
1 stop
LHR
YYZ
10h 35m
1 stop
Depart: Fri 10 Nov 2017 Return: Sun 12 Nov 2017 Trip spans 3 days
C$624
Select
Aer Lingus
Aer Lingus
YYZ
LHR
9h 25m
1 stop
LHR
YYZ
12h 30m
1 stop
Depart: Sat 16 Sep 2017 Return: Mon 18 Sep 2017 Trip spans 3 days
C$660
Select
Lufthansa
Lufthansa
YUL
LHR
8h 25m
1 stop
LHR
YUL
11h 30m
1 stop
Depart: Sun 22 Oct 2017 Return: Sat 4 Nov 2017 Trip spans 14 days
C$679
Select
Finnair
Finnair
YYC
LHR
8h 40m
nonstop
LHR
YYC
9h 10m
nonstop
Depart: Wed 15 Nov 2017 Return: Wed 22 Nov 2017 Trip spans 8 days
C$692
Select
British Airways
British Airways
YUL
LHR
6h 35m
nonstop
LHR
YUL
7h 25m
nonstop
Depart: Mon 30 Oct 2017 Return: Mon 6 Nov 2017 Trip spans 8 days
C$711
Select
Air Canada
Air Canada
YTZ
LHR
10h 15m
1 stop
LHR
YTZ
9h 40m
1 stop
Depart: Mon 20 Nov 2017 Return: Mon 27 Nov 2017 Trip spans 8 days
C$766
Select
Delta
Delta
YQB
LHR
16h 00m
2 stops
LHR
YQB
34h 10m
2 stops
Depart: Wed 4 Oct 2017 Return: Mon 9 Oct 2017 Trip spans 6 days
C$909
Select
KLM
KLM
YWG
LHR
15h 05m
1 stop
LHR
YWG
16h 28m
1 stop
Depart: Tue 22 Aug 2017 Return: Mon 28 Aug 2017 Trip spans 7 days
C$910
Select
United
United
YYZ
LHR
29h 33m
1 stop
LHR
YYZ
12h 08m
1 stop
Depart: Wed 13 Dec 2017 Return: Wed 27 Dec 2017 Trip spans 15 days
C$944
Select
Air France
Air France
YVR
LHR
13h 05m
1 stop
LHR
YVR
12h 50m
1 stop
Depart: Mon 9 Oct 2017 Return: Sat 14 Oct 2017 Trip spans 6 days
C$1023
Select
Brussels Airlines
Brussels Airlines
YVR
LHR
14h 50m
2 stops
LHR
YVR
37h 59m
2 stops
Depart: Sun 14 Jan 2018 Return: Sun 21 Jan 2018 Trip spans 8 days
C$558
Select
Icelandair
Icelandair
YYZ
LHR
10h 10m
1 stop
LHR
YYZ
26h 25m
1 stop
Depart: Fri 26 Jan 2018 Return: Fri 2 Feb 2018 Trip spans 8 days
C$559
Select
Icelandair
Icelandair
YYZ
LHR
10h 10m
1 stop
LHR
YYZ
10h 35m
1 stop
Depart: Sat 21 Oct 2017 Return: Mon 6 Nov 2017 Trip spans 17 days
C$647
Select
Aer Lingus
Aer Lingus
YYZ
LHR
10h 10m
1 stop
LHR
YYZ
10h 50m
1 stop
Depart: Fri 9 Feb 2018 Return: Fri 16 Feb 2018 Trip spans 8 days
C$579
Select
Icelandair
Icelandair
YYZ
LHR
18h 30m
1 stop
LHR
YYZ
10h 35m
1 stop
Depart: Wed 8 Nov 2017 Return: Wed 15 Nov 2017 Trip spans 8 days
C$702
Select
Finnair
Finnair
YUL
LHR
6h 35m
nonstop
LHR
YUL
7h 25m
nonstop
Depart: Mon 12 Feb 2018 Return: Mon 5 Mar 2018 Trip spans 22 days
C$711
Select
Air Canada
Air Canada
YTZ
LHR
9h 15m
1 stop
LHR
YTZ
10h 40m
1 stop
Depart: Mon 13 Nov 2017 Return: Wed 29 Nov 2017 Trip spans 17 days
C$717
Select
Lufthansa
Lufthansa
YUL
LHR
6h 30m
nonstop
LHR
YUL
7h 30m
nonstop
Depart: Mon 8 Jan 2018 Return: Mon 22 Jan 2018 Trip spans 15 days
C$720
Select
British Airways
British Airways
YUL
LHR
6h 35m
nonstop
LHR
YUL
7h 25m
nonstop
Depart: Mon 4 Dec 2017 Return: Mon 11 Dec 2017 Trip spans 8 days
C$766
Select
Delta
Delta
YQB
LHR
17h 45m
2 stops
LHR
YQB
34h 10m
2 stops
* Prices are per person, are for e–tickets and include all taxes & fees in CAD.

We attempt to get accurate prices, however, prices are not guaranteed.

Here's why:

We’re not the seller.
At KAYAK we don’t set the prices, so it’s not possible for us to guarantee what other companies are selling.

We compile tonnes of data for you
Our service lets you quickly and easily compare results from hundreds of travel sites at once. In this sense, KAYAK is a search engine and we can't guarantee prices we find.

Why aren’t prices accurate 100% of the time?
Prices on airline seats, hotel rooms and car rentals can change frequently. Several people may also be trying to buy the same travel option simultaneously. As a result, you may find, on occasion, that certain prices are no longer available.

If you have more questions or if you have a bad price to report to us,
please send us an email and someone from our team will get back to you promptly.

Airports
Origin

Québec City
C$ 766
Winnipeg
C$ 909
Vancouver
C$ 944
Calgary
C$ 679
Montreal
C$ 660
Toronto
only C$ 542
only C$ 711
Destination

London
C$ 542
Airlines Airline reviews

9 travellers who booked a flight from Toronto to London rated their chosen airlines with an average of 8.4.

Overall
8.7
Boarding
8.2
Crew
8.9
Comfort
8.7
Food
6.9
Entertainment
8.9