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

Return flights

30 Sep - 10 Oct	Gulf Air
28 Sep - 05 Oct	Gulf Air
02 Sep - 16 Sep	Gulf Air
03 Sep - 17 Sep	Gulf Air
08 Sep - 22 Sep	Gulf Air
01 Sep - 15 Sep	Gulf Air
05 Sep - 19 Sep	Gulf Air
15 Sep - 29 Sep	Gulf Air
22 Sep - 29 Sep	Gulf Air
21 Sep - 06 Oct	Gulf Air
25 Sep - 02 Oct	Gulf Air
21 Sep - 05 Oct	Gulf Air
27 Sep - 13 Oct	Gulf Air
04 Sep - 11 Sep	Gulf Air
13 Sep - 20 Sep	Gulf Air
14 Sep - 21 Sep	Gulf Air
30 Sep - 08 Oct	Gulf Air
17 Sep - 04 Oct	Gulf Air
29 Sep - 03 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 508€

Return flights