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

Return flights

02 Sep - 23 Sep	SWISS
15 Sep - 19 Sep	Etihad Airways
10 Sep - 13 Sep	Gulf Air
09 Sep - 15 Sep	Gulf Air
18 Sep - 21 Sep	Gulf Air
09 Sep - 27 Sep	Gulf Air
09 Sep - 23 Sep	Gulf Air
19 Sep - 04 Oct	Gulf Air
26 Sep - 02 Oct	Gulf Air
28 Sep - 05 Oct	Gulf Air
27 Sep - 05 Oct	Gulf Air
08 Sep - 12 Sep	Etihad Airways
01 Sep - 17 Sep	Etihad Airways
01 Sep - 23 Sep	Etihad Airways
23 Sep - 11 Oct	Gulf Air
28 Sep - 05 Oct	Lufthansa	direct
27 Sep - 05 Oct	Lufthansa	direct
24 Sep - 04 Oct	Emirates
26 Sep - 02 Oct	Singapore Airlines	direct
19 Sep - 04 Oct	Singapore Airlines	direct

Also check the deals for one-way flights from Singapore 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 Singapore to Frankfurt in September from $602

Return flights