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

Return flights

05 Dec - 08 Dec	Ryanair
15 Dec - 18 Dec	Wizz Air
12 Dec - 15 Dec	Ryanair
14 Dec - 15 Dec	Ryanair
26 Dec - 09 Jan	Ryanair
24 Dec - 28 Dec	Wizz Air
14 Dec - 17 Dec	Ryanair
03 Dec - 08 Dec	Ryanair
01 Dec - 05 Dec	Ryanair
21 Dec - 28 Dec	Wizz Air
17 Dec - 21 Dec	Wizz Air
31 Dec - 04 Jan	Wizz Air
28 Dec - 06 Jan	Wizz Air
28 Dec - 04 Jan	Wizz Air
27 Dec - 03 Jan	Wizz Air

Also check the deals for one-way flights from Warsaw 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 Warsaw to Basel in December from $224

Return flights