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

Return flights

29 Sep - 13 Oct	Ryanair	direct
30 Sep - 15 Oct	Ryanair
15 Sep - 17 Sep	Ryanair	direct
13 Sep - 17 Sep	Ryanair
10 Sep - 17 Sep	Ryanair
09 Sep - 17 Sep	Wizz Air
29 Sep - 04 Oct	Ryanair	direct
24 Sep - 03 Oct	Wizz Air	direct
30 Sep - 06 Oct	Ryanair
09 Sep - 15 Sep	Wizz Air
24 Sep - 06 Oct	Ryanair
27 Sep - 06 Oct	Ryanair
10 Sep - 15 Sep	Ryanair
13 Sep - 15 Sep	Ryanair
24 Sep - 02 Oct	Ryanair
30 Sep - 09 Oct	Ryanair
14 Sep - 17 Sep	Ryanair
24 Sep - 06 Oct	Wizz Air	direct
11 Sep - 15 Sep	Ryanair
22 Sep - 30 Sep	Ryanair

Also check the deals for one-way flights from Katowice 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 Katowice to Athens in September from $108

Return flights