AirHint found the following cheapest one-way flights from Toronto (YYZ) to London (STN) in September 2025 (see full year).
One-Way flights
| 29 Sep | WestJet | ||
| 23 Sep | Porter Airlines (Canada) Ltd | ||
| 28 Sep | WestJet | ||
| 26 Sep | Air Transat | ||
| 21 Sep | WestJet | ||
| 17 Sep | WestJet | ||
| 25 Sep | Air Transat | ||
| 24 Sep | Air Transat | ||
| 18 Sep | Air Transat | ||
| 20 Sep | Lufthansa |
Also check the deals for return flights from Toronto to London in September.
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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