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

Return flights

30 Sep - 04 Oct	ITA Airways
18 Sep - 25 Sep	ITA Airways
30 Sep - 03 Oct	ITA Airways
19 Sep - 04 Oct	ITA Airways
27 Sep - 04 Oct	ITA Airways
25 Sep - 29 Sep	ITA Airways
20 Sep - 23 Sep	ITA Airways
16 Sep - 23 Sep	ITA Airways
18 Sep - 22 Sep	ITA Airways
22 Sep - 26 Sep	Volotea
28 Sep - 05 Oct	ITA Airways
13 Sep - 16 Sep	Aegean Airlines
23 Sep - 27 Sep	ITA Airways
25 Sep - 27 Sep	ITA Airways
30 Sep - 15 Oct	Volotea
27 Sep - 15 Oct	Volotea
06 Sep - 12 Sep	ITA Airways
30 Sep - 20 Oct	Volotea
30 Sep - 16 Oct	Volotea
27 Sep - 16 Oct	Volotea

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.

Book a cheap hotel in Athens

Cheap car rent in Athens

Cheapest return flights from Florence to Athens in September from $183

Return flights