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

Return flights

16 Sep - 23 Sep	Air China
16 Sep - 31 Oct	Air China
08 Sep - 20 Oct	Singapore Airlines
07 Sep - 20 Oct	Singapore Airlines
08 Sep - 19 Sep	Singapore Airlines
02 Sep - 12 Sep	Air China
04 Sep - 20 Oct	Singapore Airlines
05 Sep - 20 Oct	Singapore Airlines
10 Sep - 14 Sep	Singapore Airlines
30 Sep - 01 Oct	Air India
03 Sep - 16 Sep	Air India
01 Sep - 20 Oct	Air India
03 Sep - 20 Oct	Air India
18 Sep - 09 Oct	Air China
10 Sep - 30 Sep	Turkish Airlines
19 Sep - 18 Oct	Etihad Airways
06 Sep - 26 Sep	Singapore Airlines
12 Sep - 30 Sep	Turkish Airlines
18 Sep - 30 Sep	China Southern
01 Sep - 22 Sep	Finnair

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.

Book a cheap hotel in Frankfurt

Cheap car rent in Frankfurt

Cheapest return flights from Sydney to Frankfurt in September from 766€

Return flights