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

Return flights

16 Sep - 23 Sep	Gulf Air
17 Sep - 24 Sep	Gulf Air
30 Sep - 05 Oct	Juneyao Airlines
24 Sep - 28 Sep	Gulf Air
24 Sep - 06 Oct	Gulf Air
18 Sep - 29 Sep	Gulf Air
29 Sep - 05 Oct	Gulf Air
29 Sep - 03 Oct	Gulf Air
29 Sep - 04 Oct	Gulf Air
26 Sep - 05 Oct	Gulf Air
10 Sep - 17 Sep	Gulf Air
28 Sep - 06 Oct	Juneyao Airlines
17 Sep - 19 Oct	Gulf Air
18 Sep - 30 Sep	Gulf Air
21 Sep - 24 Sep	Gulf Air
23 Sep - 26 Sep	Gulf Air
17 Sep - 25 Sep	Gulf Air
24 Sep - 09 Oct	Gulf Air
28 Sep - 10 Oct	Juneyao Airlines
14 Sep - 29 Sep	Gulf Air

Also check the deals for one-way flights from Athens 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 Athens to Singapore in September from 478€

Return flights