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

Return flights

08 Sep - 15 Sep	TAP
17 Sep - 24 Sep	WestJet
12 Sep - 15 Sep	TAP
11 Sep - 15 Sep	TAP
02 Sep - 14 Sep	TAP
11 Sep - 14 Sep	TAP
03 Sep - 09 Sep	TAP
01 Sep - 15 Sep	TAP
17 Sep - 24 Sep	Condor	direct
07 Sep - 20 Sep	TAP
23 Sep - 14 Oct	Condor	direct
24 Sep - 15 Oct	Condor	direct
22 Sep - 19 Oct	Condor	direct
30 Sep - 24 Oct	Condor	direct
30 Sep - 14 Oct	Condor	direct
15 Sep - 08 Oct	Condor	direct
29 Sep - 10 Oct	Condor	direct
24 Sep - 08 Oct	Condor	direct
30 Sep - 21 Oct	Condor	direct
29 Sep - 06 Oct	Icelandair

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 355€

Return flights