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

Return flights

16 Sep - 20 Sep	WestJet
27 Sep - 06 Oct	WestJet
16 Sep - 09 Oct	Air Transat
27 Sep - 04 Oct	WestJet
16 Sep - 24 Sep	Air Transat
17 Sep - 24 Sep	Air Transat
16 Sep - 11 Oct	Air Transat
08 Sep - 17 Sep	Condor	direct
11 Sep - 25 Sep	Air Transat
06 Sep - 20 Sep	Condor	direct
12 Sep - 18 Sep	Condor	direct
29 Sep - 13 Oct	Condor	direct
21 Sep - 05 Oct	Condor	direct
30 Sep - 14 Oct	Condor	direct
19 Sep - 03 Oct	Condor	direct
28 Sep - 12 Oct	Condor	direct
01 Sep - 01 Oct	Condor	direct
02 Sep - 16 Sep	Condor	direct
02 Sep - 12 Sep	Condor	direct
01 Sep - 08 Sep	Condor	direct

Also check the deals for one-way flights from Toronto to Frankfurt 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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Cheapest return flights from Toronto to Frankfurt in September from $408

Return flights