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

Return flights

07 Dec - 10 Dec	easyJet	direct
17 Dec - 07 Jan	easyJet	direct
03 Dec - 10 Dec	easyJet	direct
14 Dec - 17 Dec	easyJet	direct
03 Dec - 07 Dec	easyJet	direct
04 Dec - 10 Dec	Pegasus Airlines
10 Dec - 14 Dec	easyJet	direct
28 Dec - 31 Dec	easyJet	direct
21 Dec - 31 Dec	easyJet	direct
05 Dec - 07 Dec	Pegasus Airlines
01 Dec - 04 Dec	Pegasus Airlines
30 Dec - 04 Jan	Lufthansa
29 Dec - 03 Jan	SKY express
24 Dec - 06 Jan	KLM
28 Dec - 06 Jan	easyJet
29 Dec - 06 Jan	SKY express

Also check the deals for one-way flights from Athens 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 Athens to Basel in December from $73

Return flights