Cheapest return flights from Toronto to London in September from $572

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

08 Sep - 02 Oct Air Transat
09 Sep - 02 Oct Air Transat
09 Sep - 30 Sep Porter Airlines (Canada) Ltd
08 Sep - 30 Sep Porter Airlines (Canada) Ltd
17 Sep - 25 Sep Air Transat
12 Sep - 22 Sep Air Transat
12 Sep - 20 Sep Air Transat
02 Sep - 25 Sep Air Transat
02 Sep - 09 Sep Air Transat
30 Sep - 10 Oct Air Transat
11 Sep - 14 Sep Air Transat
14 Sep - 22 Sep Air Transat
09 Sep - 19 Sep Air Transat
27 Sep - 09 Oct Air Transat
16 Sep - 07 Oct Air Transat
25 Sep - 05 Oct Air Transat
24 Sep - 07 Oct Air Transat
21 Sep - 05 Oct Air Transat
22 Sep - 06 Oct Porter Airlines (Canada) Ltd

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