Cheapest return flights from Toronto to London in September from $602

Best time to book flights for Toronto (YTZ) to London (LGW) flights at AirHint

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

Return flights

04 Sep - 11 Sep Porter Airlines (Canada) Ltd
26 Sep - 05 Oct Air Transat
08 Sep - 20 Sep Air Transat
12 Sep - 26 Sep Air Transat
08 Sep - 19 Sep Air Transat
14 Sep - 22 Sep Air Transat
12 Sep - 19 Sep Air Transat
11 Sep - 25 Sep Air Transat
12 Sep - 20 Sep Air Transat
18 Sep - 25 Sep Air Transat
10 Sep - 22 Sep Air Transat
30 Sep - 16 Oct Air Transat
29 Sep - 21 Oct Air Transat
30 Sep - 14 Oct Air Transat
30 Sep - 21 Oct Air Transat
30 Sep - 09 Oct Air Transat
29 Sep - 09 Oct Air Transat
26 Sep - 03 Oct Air Transat
30 Sep - 07 Oct Air Transat
23 Sep - 07 Oct Air Transat

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

Skyscanner

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.

Book a cheap hotel in London

Cheap car rent in London