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

Return flights

10 Dec - 15 Dec	easyJet
11 Dec - 14 Dec	easyJet
05 Dec - 10 Dec	Ryanair
12 Dec - 14 Dec	easyJet
24 Dec - 30 Dec	Air Serbia
09 Dec - 13 Dec	Ryanair
10 Dec - 13 Dec	easyJet
08 Dec - 13 Dec	easyJet
02 Dec - 05 Dec	Ryanair
12 Dec - 17 Dec	Ryanair
24 Dec - 02 Jan	Air Serbia
29 Dec - 02 Jan	Ryanair
31 Dec - 05 Jan	Ryanair
29 Dec - 05 Jan	Ryanair
28 Dec - 01 Jan	Ryanair
30 Dec - 02 Jan	easyJet
26 Dec - 03 Jan	SKY express

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 137€

Return flights