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

Return flights

21 Sep - 28 Sep	Smart Wings
18 Sep - 21 Sep	Ryanair
21 Sep - 28 Sep	Smart Wings	direct
25 Sep - 28 Sep	Ryanair
22 Sep - 24 Sep	Smart Wings
07 Sep - 14 Sep	TUI
22 Sep - 24 Sep	Smart Wings	direct
06 Sep - 13 Sep	British Airways
25 Sep - 28 Sep	Smart Wings	direct
07 Sep - 14 Sep	Smart Wings	direct

Also check the deals for one-way flights from Keffallinia 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 Keffallinia to Prague in September from 201€

Return flights