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

Return flights

05 Sep - 10 Sep	SKY express
17 Sep - 30 Sep	easyJet
02 Sep - 10 Sep	Pegasus Airlines
25 Sep - 27 Sep	easyJet
25 Sep - 29 Sep	easyJet
02 Sep - 30 Sep	Pegasus Airlines
26 Sep - 30 Sep	Pegasus Airlines
05 Sep - 11 Sep	SKY express
10 Sep - 17 Sep	easyJet
25 Sep - 02 Oct	easyJet
17 Sep - 22 Sep	easyJet
30 Sep - 05 Oct	Pegasus Airlines
24 Sep - 03 Oct	easyJet
30 Sep - 03 Oct	easyJet
25 Sep - 03 Oct	easyJet
25 Sep - 15 Oct	Pegasus Airlines
29 Sep - 03 Oct	easyJet
28 Sep - 03 Oct	Aegean Airlines
21 Sep - 04 Oct	Ryanair
17 Sep - 07 Oct	SKY express

Also check the deals for one-way flights from Athens to Prague 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 Prague in September from 121€

Return flights