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

Return flights

15 Dec - 18 Dec	Ryanair
01 Dec - 04 Dec	Ryanair
11 Dec - 13 Dec	Wizz Air
25 Dec - 01 Jan	Wizz Air
11 Dec - 15 Dec	Wizz Air
07 Dec - 10 Dec	easyJet
08 Dec - 15 Dec	Ryanair
13 Dec - 18 Dec	Ryanair
07 Dec - 13 Dec	easyJet
16 Dec - 18 Dec	easyJet
14 Dec - 15 Dec	Ryanair
23 Dec - 06 Jan	KLM
31 Dec - 07 Jan	Ryanair
31 Dec - 04 Jan	Ryanair
27 Dec - 02 Jan	Ryanair
26 Dec - 02 Jan	Wizz Air

Also check the deals for one-way flights from Thessaloniki to Basel 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 Basel in December from 126€

Return flights