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

Return flights

05 Dec - 17 Dec	SKY express	direct
10 Dec - 16 Dec	easyJet
06 Dec - 09 Dec	easyJet
03 Dec - 11 Dec	easyJet
03 Dec - 10 Dec	easyJet
05 Dec - 12 Dec	SKY express	direct
10 Dec - 12 Dec	easyJet
13 Dec - 15 Dec	easyJet
04 Dec - 12 Dec	Ryanair
03 Dec - 06 Dec	easyJet
22 Dec - 13 Jan	Ryanair
21 Dec - 09 Jan	Volotea	direct
21 Dec - 11 Jan	Volotea	direct
25 Dec - 09 Jan	Volotea	direct
25 Dec - 11 Jan	Volotea	direct
21 Dec - 10 Jan	Volotea
25 Dec - 10 Jan	Volotea
20 Dec - 08 Jan	Ryanair
25 Dec - 13 Jan	Volotea
22 Dec - 05 Jan	Ryanair

Also check the deals for one-way flights from Lisbon to Athens 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 Lisbon to Athens in December from 109€

Return flights