Find cheap flights from Ontario to London

Find cheap flights from Ontario to London

Round-trip
Economy
Boston (BOS)
London All airports
Thu. 6/8
Thu. 13/8
Any month
Compare vs. KAYAK |
Search hundreds of travel sites at once for deals on flights to London

Good to know

Low season

February Best time to beat the crowds (3% less expensive on average)

High season

December Most popular time to fly (10% more expensive on average)

Average price of a round-trip

C$ 607 (avg. price over the last 2 weeks)

Good deal for a round-trip

C$ 430 or less

FAQs for booking Ontario to London flights

Which airlines have a flexible cancellation policy for flights from Ontario to London due to COVID-19?

How does KAYAK find such low prices on flights from Ontario to London?

How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from Ontario to London?

What is the Hacker Fare option on flights from Ontario to London?

What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from Ontario to London?

Top airlines flying from Ontario to London

Scores according to KAYAK customer reviews

7.4
Aer Lingus
Overall score based on 6,063 reviews
7.6
Boarding
7.2
Comfort
8.0
Crew
7.1
Entertainment
6.8
Food
Airline reviews
Read more about Aer Lingus

Book cheap flights from Ontario to London

Recent round-trip flight deals

20/10
Tue.
1 stop
Icelandair
18h 20m
YYZ - LHR
23/11
Mon.
1 stop
Icelandair
11h 05m
LHR - YYZ
8/9
Tue.
1 stop
TAP AIR PORTUGAL
18h 40m
YYZ - LHR
22/9
Tue.
1 stop
TAP AIR PORTUGAL
20h 55m
LHR - YYZ
20/9
Sun.
direct
Multiple Airlines
7h 00m
YYZ - LGW
23/9
Wed.
2 stops
Multiple Airlines
19h 20m
LGW - YYZ
6/11
Fri.
direct
Air Transat
7h 05m
YYZ - LGW
11/11
Wed.
direct
Air Transat
8h 15m
LGW - YYZ
31/8
Mon.
1 stop
Aer Lingus
11h 25m
YYZ - LCY
24/9
Thu.
1 stop
Aer Lingus
12h 15m
LCY - YYZ
14/9
Mon.
1 stop
Virgin Atlantic
9h 20m
YOW - LGW
30/9
Wed.
1 stop
Virgin Atlantic
11h 18m
LGW - YOW
12/10
Mon.
1 stop
Icelandair
10h 05m
YYZ - LGW
26/10
Mon.
1 stop
Icelandair
11h 30m
LGW - YYZ
24/9
Thu.
direct
Multiple Airlines
7h 00m
YYZ - LGW
29/9
Tue.
2 stops
Multiple Airlines
19h 20m
LGW - YYZ
12/10
Mon.
1 stop
Icelandair
10h 05m
YYZ - LGW
26/10
Mon.
1 stop
Icelandair
11h 30m
LGW - YYZ
1/12
Tue.
1 stop
TAP AIR PORTUGAL
12h 45m
YYZ - LGW
10/12
Thu.
1 stop
TAP AIR PORTUGAL
14h 50m
LGW - YYZ
8/10
Thu.
1 stop
Icelandair
9h 50m
YYZ - LGW
12/10
Mon.
1 stop
Icelandair
11h 05m
LGW - YYZ
6/9
Sun.
direct
Multiple Airlines
7h 00m
YYZ - LGW
12/9
Sat.
2 stops
Multiple Airlines
18h 55m
LGW - YYZ
24/9
Thu.
direct
Air Transat
7h 00m
YYZ - LGW
30/9
Wed.
direct
Air Transat
8h 00m
LGW - YYZ
19/11
Thu.
1 stop
TAP AIR PORTUGAL
12h 45m
YYZ - LGW
27/11
Fri.
1 stop
TAP AIR PORTUGAL
14h 50m
LGW - YYZ
12/11
Thu.
1 stop
Icelandair
10h 20m
YYZ - LHR
15/11
Sun.
1 stop
Icelandair
26h 50m
LHR - YYZ

Recent one-way flight deals

15/9
Tue.
1 stop
TAP AIR PORTUGAL
18h 40m
YYZ - LHR
20/9
Sun.
direct
Air Transat
7h 00m
YYZ - LGW
5/9
Sat.
2 stops
Multiple Airlines
21h 45m
YTZ - LHR
25/9
Fri.
1 stop
TAP AIR PORTUGAL
13h 30m
YYZ - LHR
21/9
Mon.
1 stop
TAP AIR PORTUGAL
13h 30m
YYZ - LHR
15/9
Tue.
direct
Air Transat
7h 00m
YYZ - LGW
9/9
Wed.
1 stop
TAP AIR PORTUGAL
18h 40m
YYZ - LHR
8/8
Sat.
2 stops
KLM
16h 00m
YOW - LHR
10/9
Thu.
direct
Air Transat
7h 00m
YYZ - LGW
8/9
Tue.
1 stop
TAP AIR PORTUGAL
18h 40m
YYZ - LHR
6/9
Sun.
direct
Air Transat
7h 00m
YYZ - LGW
19/9
Sat.
2 stops
Multiple Airlines
27h 55m
YTZ - LHR
14/9
Mon.
1 stop
TAP AIR PORTUGAL
13h 30m
YYZ - LHR
18/9
Fri.
1 stop
Aer Lingus
14h 40m
YYZ - LGW
*
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 and someone from our team will get back to you promptly.

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