Cheapest return flights from Toronto to London in September from $648

Best time to book flights for Toronto (YYZ) to London (LHR) flights at AirHint

AirHint found the following cheapest return flights from Toronto (YYZ) to London (LHR) in September 2025 (see full year).

Return flights

23 Sep - 30 Sep Icelandair
26 Sep - 23 Oct Icelandair
25 Sep - 06 Oct Icelandair
10 Sep - 17 Sep WestJet
14 Sep - 30 Sep Icelandair
21 Sep - 27 Sep TAP
25 Sep - 06 Oct Air Canada direct
19 Sep - 28 Sep Icelandair
23 Sep - 30 Sep Air Canada direct
26 Sep - 03 Oct Air Canada direct
26 Sep - 23 Oct Air Canada direct
01 Sep - 30 Sep Scandinavian Airlines
10 Sep - 24 Sep Air Canada direct
10 Sep - 22 Sep Air Canada direct
01 Sep - 30 Sep Air Canada direct

Also check the deals for one-way flights from Toronto to London in September.

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The deals are updated regularly. The prices may go up as tickets are purchased by other travellers. Only the cheapest flights are offered. Select a price to book and secure these cheap prices.

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