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
27 Sep - 30 Sep	Ryanair
27 Sep - 03 Oct	Wizz Air
25 Sep - 02 Oct	SKY express
30 Sep - 02 Oct	SKY express
24 Sep - 02 Oct	SKY express
24 Sep - 03 Oct	SKY express
30 Sep - 09 Oct	SKY express
24 Sep - 15 Oct	SKY express	direct
30 Sep - 15 Oct	SKY express	direct
25 Sep - 15 Oct	SKY express	direct
18 Sep - 24 Sep	SKY express
17 Sep - 30 Sep	SKY express
24 Sep - 30 Sep	SKY express
23 Sep - 30 Sep	SKY express
17 Sep - 24 Sep	SKY express
25 Sep - 30 Sep	SKY express
16 Sep - 23 Sep	SKY express	direct
17 Sep - 22 Sep	SKY express
18 Sep - 22 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 113€

Return flights