AirHint found the following cheapest return flights from Frankfurt (FRA) to Toronto (YYZ) in September 2025 (see full year).

Return flights

22 Sep - 07 Oct	Ryanair
22 Sep - 29 Sep	Ryanair
22 Sep - 06 Oct	Aer Lingus
16 Sep - 14 Oct	Aer Lingus
25 Sep - 01 Oct	Ryanair
17 Sep - 30 Sep	Ryanair
29 Sep - 14 Oct	Icelandair
22 Sep - 02 Oct	Ryanair
25 Sep - 11 Oct	Ryanair
16 Sep - 10 Oct	Aer Lingus
05 Sep - 15 Sep	Icelandair
25 Sep - 10 Oct	Ryanair
10 Sep - 30 Sep	Ryanair
17 Sep - 24 Sep	Ryanair
17 Sep - 14 Oct	Aer Lingus
22 Sep - 30 Sep	Icelandair
16 Sep - 24 Sep	Ryanair
23 Sep - 30 Sep	Aer Lingus
16 Sep - 29 Sep	Aer Lingus
23 Sep - 29 Sep	Aer Lingus

Also check the deals for one-way flights from Frankfurt 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.

Book a cheap hotel in Toronto

Cheap car rent in Toronto

Cheapest return flights from Frankfurt to Toronto in September from $469

Return flights