Cheapest return flights from Toronto to London in September from $607

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

09 Sep - 11 Sep Porter Airlines (Canada) Ltd
05 Sep - 12 Sep Porter Airlines (Canada) Ltd
05 Sep - 30 Sep Porter Airlines (Canada) Ltd
06 Sep - 13 Sep Porter Airlines (Canada) Ltd
10 Sep - 19 Sep Porter Airlines (Canada) Ltd
09 Sep - 15 Sep Porter Airlines (Canada) Ltd
14 Sep - 30 Sep Porter Airlines (Canada) Ltd
17 Sep - 23 Sep Porter Airlines (Canada) Ltd
21 Sep - 25 Sep Porter Airlines (Canada) Ltd
08 Sep - 23 Sep Porter Airlines (Canada) Ltd
11 Sep - 10 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