AirHint found the following cheapest return flights from Athens (ATH) to Lisbon (LIS) in December 2025 (see full year).

Return flights

02 Dec - 06 Dec	easyJet
11 Dec - 17 Dec	easyJet
06 Dec - 11 Dec	easyJet
06 Dec - 10 Dec	easyJet
14 Dec - 18 Dec	easyJet
04 Dec - 08 Dec	easyJet
10 Dec - 15 Dec	Wizz Air Malta
04 Dec - 06 Dec	Vueling Airlines
12 Dec - 16 Dec	Aegean Airlines
01 Dec - 04 Dec	SKY express
25 Dec - 14 Jan	Volotea	direct
25 Dec - 07 Jan	Volotea
25 Dec - 13 Jan	Volotea
18 Dec - 07 Jan	Volotea
21 Dec - 07 Jan	Vueling Airlines
25 Dec - 13 Jan	Volotea	direct
26 Dec - 14 Jan	Vueling Airlines
25 Dec - 07 Jan	Volotea	direct
18 Dec - 07 Jan	Volotea	direct
26 Dec - 07 Jan	Vueling Airlines

Also check the deals for one-way flights from Athens to Lisbon in December.

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 Lisbon in December from $146

Return flights