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

Return flights

26 Sep - 28 Sep	ITA Airways
26 Sep - 29 Sep	ITA Airways
26 Sep - 03 Oct	ITA Airways
27 Sep - 28 Sep	ITA Airways
23 Sep - 29 Sep	ITA Airways
30 Sep - 04 Oct	ITA Airways
22 Sep - 26 Sep	ITA Airways
22 Sep - 28 Sep	ITA Airways
27 Sep - 29 Sep	ITA Airways
27 Sep - 04 Oct	ITA Airways
23 Sep - 26 Sep	ITA Airways
20 Sep - 28 Sep	ITA Airways
19 Sep - 23 Sep	ITA Airways
23 Sep - 08 Oct	Vueling Airlines
23 Sep - 06 Oct	Vueling Airlines
30 Sep - 16 Oct	Vueling Airlines
23 Sep - 13 Oct	Vueling Airlines
23 Sep - 07 Oct	Vueling Airlines
30 Sep - 08 Oct	Vueling Airlines
30 Sep - 15 Oct	Vueling Airlines

Also check the deals for one-way flights from Florence 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 Florence to Athens in September from 169€

Return flights