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

Return flights

27 Sep - 08 Oct	Wizz Air UK
16 Sep - 07 Oct	Wizz Air
30 Sep - 02 Oct	Wizz Air
17 Sep - 15 Oct	Wizz Air
30 Sep - 05 Oct	Wizz Air
15 Sep - 06 Oct	Wizz Air Malta
29 Sep - 07 Oct	Wizz Air Malta
29 Sep - 08 Oct	Wizz Air Malta
29 Sep - 01 Oct	Wizz Air Malta
30 Sep - 08 Oct	SKY express	direct
19 Sep - 23 Sep	Wizz Air
02 Sep - 10 Sep	SKY express	direct
07 Sep - 10 Sep	SKY express	direct
09 Sep - 10 Sep	SKY express	direct
19 Sep - 22 Sep	Wizz Air
21 Sep - 23 Sep	SKY express
20 Sep - 23 Sep	Wizz Air UK
24 Sep - 30 Sep	Wizz Air
23 Sep - 24 Sep	Wizz Air
10 Sep - 17 Sep	SKY express

Also check the deals for one-way flights from Warsaw 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 Warsaw to Athens in September from $136

Return flights