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

Return flights

21 Sep - 28 Sep	Gulf Air
20 Sep - 24 Sep	Gulf Air
21 Sep - 24 Sep	Gulf Air
30 Sep - 07 Oct	Gulf Air
24 Sep - 28 Sep	Gulf Air
09 Sep - 23 Sep	Gulf Air
15 Sep - 29 Sep	Gulf Air
07 Sep - 21 Sep	Gulf Air
22 Sep - 06 Oct	Gulf Air
26 Sep - 10 Oct	Gulf Air
08 Sep - 21 Sep	Gulf Air
17 Sep - 20 Sep	Gulf Air
24 Sep - 08 Oct	Gulf Air
30 Sep - 28 Oct	Gulf Air
15 Sep - 22 Sep	Gulf Air
20 Sep - 23 Oct	Gulf Air
19 Sep - 03 Oct	Gulf Air
17 Sep - 04 Oct	Gulf Air
29 Sep - 13 Oct	Gulf Air
27 Sep - 10 Oct	Gulf Air

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 $611

Return flights