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

Return flights

22 Sep - 23 Sep	easyJet
22 Sep - 24 Sep	easyJet
24 Sep - 04 Oct	easyJet
23 Sep - 26 Sep	Pegasus Airlines
27 Sep - 01 Oct	easyJet
25 Sep - 30 Sep	Ryanair
27 Sep - 08 Oct	easyJet
10 Sep - 17 Sep	easyJet
30 Sep - 05 Oct	easyJet
15 Sep - 20 Sep	easyJet
25 Sep - 02 Oct	Ryanair
11 Sep - 15 Sep	Ryanair
10 Sep - 15 Sep	easyJet
25 Sep - 01 Oct	easyJet
16 Sep - 22 Sep	Pegasus Airlines
26 Sep - 30 Sep	easyJet
27 Sep - 04 Oct	easyJet
27 Sep - 05 Oct	easyJet
19 Sep - 01 Oct	SKY express
15 Sep - 01 Oct	Volotea

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 136€

Return flights