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

Return flights

30 Sep - 08 Oct	Finnair
12 Sep - 16 Sep	Air France
08 Sep - 22 Sep	Air France
10 Sep - 23 Sep	Air France
08 Sep - 17 Sep	Air France
09 Sep - 23 Sep	Air France
16 Sep - 23 Sep	Air France
07 Sep - 17 Sep	Air France
22 Sep - 29 Sep	Etihad Airways
17 Sep - 24 Sep	Etihad Airways
09 Sep - 16 Sep	Air France
18 Sep - 08 Oct	Etihad Airways
17 Sep - 09 Oct	Etihad Airways
17 Sep - 08 Oct	Etihad Airways
22 Sep - 10 Oct	Ryanair
25 Sep - 08 Oct	Etihad Airways
25 Sep - 10 Oct	Etihad Airways
23 Sep - 10 Oct	Etihad Airways
10 Sep - 02 Oct	Etihad Airways
18 Sep - 09 Oct	Etihad Airways

Also check the deals for one-way flights from Frankfurt to Singapore 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 Frankfurt to Singapore in September from 518€

Return flights