AirHint found the following cheapest return flights from London (LHR) to Toronto (YYZ)
in September 2025 (see full year ).
Return flights
13 Sep
- 20 Sep
Air France
385 €
05 Sep
- 20 Sep
KLM
391 €
direct
17 Sep
- 22 Sep
KLM
393 €
direct
24 Sep
- 29 Sep
Lufthansa
399 €
23 Sep
- 30 Sep
Lufthansa
399 €
16 Sep
- 23 Sep
Lufthansa
404 €
18 Sep
- 22 Sep
Air Canada
406 €
12 Sep
- 19 Sep
Lufthansa
408 €
10 Sep
- 16 Sep
Austrian Airlines
409 €
11 Sep
- 22 Sep
Lufthansa
409 €
25 Sep
- 09 Oct
KLM
438 €
direct
27 Sep
- 06 Oct
Scandinavian Airlines
453 €
16 Sep
- 03 Oct
Scandinavian Airlines
453 €
25 Sep
- 03 Oct
Scandinavian Airlines
454 €
28 Sep
- 06 Oct
Scandinavian Airlines
455 €
10 Sep
- 01 Oct
Scandinavian Airlines
461 €
23 Sep
- 01 Oct
Lufthansa
464 €
24 Sep
- 03 Oct
Lufthansa
472 €
24 Sep
- 01 Oct
Lufthansa
473 €
16 Sep
- 11 Oct
Scandinavian Airlines
473 €
Also check the deals for one-way flights from London to Toronto 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.