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

Return flights

24 Sep - 05 Oct	Scoot Tigerair	direct
23 Sep - 04 Oct	Gulf Air
26 Sep - 05 Oct	Gulf Air
28 Sep - 17 Oct	Gulf Air
18 Sep - 05 Oct	Gulf Air
17 Sep - 05 Oct	Gulf Air
26 Sep - 10 Oct	Gulf Air
22 Sep - 09 Oct	Gulf Air
22 Sep - 08 Oct	Gulf Air
18 Sep - 21 Sep	Gulf Air
19 Sep - 22 Sep	Gulf Air
24 Sep - 28 Sep	Gulf Air
21 Sep - 29 Sep	Gulf Air
22 Sep - 28 Sep	Gulf Air
24 Sep - 30 Sep	Gulf Air
20 Sep - 27 Sep	Gulf Air
12 Sep - 27 Sep	Gulf Air
10 Sep - 14 Sep	Gulf Air
12 Sep - 16 Sep	Gulf Air
22 Sep - 08 Oct	Scoot Tigerair	direct

Also check the deals for one-way flights from Singapore to Athens 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 Athens in September from 502€

Return flights