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

Return flights

17 Sep - 08 Oct	VietJet Air
23 Sep - 24 Sep	Air Canada
17 Sep - 15 Oct	Singapore Airlines
18 Sep - 25 Sep	VietJet Air
18 Sep - 07 Oct	Jetstar
26 Sep - 28 Sep	Virgin Australia
28 Sep - 13 Oct	Asiana Airlines
21 Sep - 24 Oct	Turkish Airlines
21 Sep - 27 Sep	Thai Airways
30 Sep - 28 Oct	Air Canada
14 Sep - 11 Oct	Jetstar
20 Sep - 28 Sep	Thai Airways
20 Sep - 10 Oct	SriLankan Airlines
18 Sep - 31 Oct	Virgin Australia
21 Sep - 24 Sep	Thai Airways
14 Sep - 26 Sep	Emirates
18 Sep - 01 Oct	Thai Airways
27 Sep - 30 Sep	Qatar Airways
21 Sep - 29 Sep	Air Canada

Also check the deals for one-way flights from Sydney 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 Sydney to Frankfurt in September from 1013€

Return flights