Cheapest return flights from Toronto to London in September from $489

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

Return flights

06 Sep - 14 Sep Porter Airlines (Canada) Ltd
16 Sep - 23 Sep Air Transat
17 Sep - 23 Sep Porter Airlines (Canada) Ltd
18 Sep - 23 Sep Air Transat
12 Sep - 18 Sep Air Transat
22 Sep - 26 Sep Air Transat
09 Sep - 30 Sep Air Transat
12 Sep - 30 Sep Air Transat
16 Sep - 25 Sep Air Transat
10 Sep - 19 Sep Air Transat
25 Sep - 02 Oct Air Transat
23 Sep - 05 Oct Air Transat
30 Sep - 14 Oct Air Transat
30 Sep - 07 Oct Air Transat
23 Sep - 07 Oct Air Transat
10 Sep - 03 Oct Air Transat
15 Sep - 07 Oct Air Transat
26 Sep - 07 Oct Air Transat
17 Sep - 02 Oct Air Transat
26 Sep - 10 Oct Air Transat

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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