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

Return flights

19 Sep - 07 Oct	Air Arabia
08 Sep - 17 Sep	Air Arabia
27 Sep - 14 Oct	Air Arabia
16 Sep - 23 Sep	Air Arabia
10 Sep - 16 Sep	Air Arabia
23 Sep - 30 Sep	Air Arabia
24 Sep - 07 Oct	Air Arabia
29 Sep - 14 Oct	Air Arabia
10 Sep - 22 Sep	Air Arabia
08 Sep - 23 Sep	Air Arabia
15 Sep - 22 Sep	Air Arabia
10 Sep - 30 Sep	Air Arabia
17 Sep - 30 Sep	Air Arabia
15 Sep - 30 Sep	Air Arabia
16 Sep - 06 Oct	Air Arabia
08 Sep - 14 Oct	Air Arabia
24 Sep - 14 Oct	Air Arabia
23 Sep - 21 Oct	Air Arabia
17 Sep - 21 Oct	Air Arabia
23 Sep - 28 Oct	Air Arabia

Also check the deals for one-way flights from Athens to Bangkok 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 Bangkok in September from $470

Return flights