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

Return flights

05 Dec - 11 Dec	SKY express
01 Dec - 05 Dec	Aegean Airlines
01 Dec - 06 Dec	Ryanair
15 Dec - 20 Dec	Ryanair
12 Dec - 15 Dec	easyJet
10 Dec - 15 Dec	easyJet
15 Dec - 19 Dec	easyJet
10 Dec - 14 Dec	easyJet
08 Dec - 12 Dec	Ryanair
08 Dec - 14 Dec	easyJet
31 Dec - 06 Jan	Air Serbia
29 Dec - 02 Jan	easyJet
31 Dec - 04 Jan	Air Serbia
29 Dec - 03 Jan	Ryanair
28 Dec - 01 Jan	easyJet
23 Dec - 02 Jan	Aegean Airlines
31 Dec - 05 Jan	Ryanair
30 Dec - 06 Jan	easyJet

Also check the deals for one-way flights from Thessaloniki 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 Thessaloniki to Lisbon in December from $156

Return flights