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

Return flights

09 Dec - 13 Dec	easyJet
09 Dec - 15 Dec	easyJet
09 Dec - 16 Dec	easyJet
13 Dec - 18 Dec	easyJet
13 Dec - 17 Dec	easyJet
11 Dec - 17 Dec	easyJet
16 Dec - 18 Dec	easyJet
10 Dec - 17 Dec	easyJet
09 Dec - 12 Dec	easyJet
10 Dec - 13 Dec	easyJet
31 Dec - 16 Jan	SKY express	direct
18 Dec - 09 Jan	easyJet
31 Dec - 18 Jan	SKY express	direct
31 Dec - 09 Jan	SKY express	direct
31 Dec - 11 Jan	SKY express	direct
31 Dec - 19 Jan	SKY express
31 Dec - 12 Jan	SKY express	direct
31 Dec - 15 Jan	SKY express	direct
31 Dec - 08 Jan	SKY express
19 Dec - 08 Jan	SKY express

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 $119

Return flights