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

Return flights

13 Dec - 17 Dec	easyJet
02 Dec - 10 Dec	easyJet
07 Dec - 11 Dec	easyJet
04 Dec - 10 Dec	easyJet
01 Dec - 03 Dec	Vueling Airlines
06 Dec - 13 Dec	easyJet
03 Dec - 11 Dec	Aegean Airlines
03 Dec - 10 Dec	Aegean Airlines
01 Dec - 11 Dec	Vueling Airlines
15 Dec - 18 Dec	easyJet
25 Dec - 11 Jan	Volotea
25 Dec - 07 Jan	Volotea
15 Dec - 04 Jan	Vueling Airlines
05 Dec - 23 Jan	SKY express
25 Dec - 07 Jan	Volotea	direct
21 Dec - 07 Jan	Vueling Airlines
26 Dec - 11 Jan	Vueling Airlines
16 Dec - 04 Jan	Vueling Airlines
29 Dec - 11 Jan	Volotea
28 Dec - 11 Jan	Volotea

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 125€

Return flights