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

Return flights

21 Dec - 11 Jan	Wizz Air
15 Dec - 18 Dec	Ryanair
26 Dec - 31 Dec	Ryanair
03 Dec - 05 Dec	Ryanair
03 Dec - 07 Dec	Ryanair
15 Dec - 15 Dec	Ryanair
01 Dec - 05 Dec	Ryanair
28 Dec - 09 Jan	Ryanair
01 Dec - 06 Dec	Ryanair
09 Dec - 19 Dec	Ryanair
02 Dec - 04 Dec	Ryanair
24 Dec - 02 Jan	Ryanair
01 Dec - 02 Dec	Ryanair
21 Dec - 04 Jan	Ryanair
31 Dec - 04 Jan	Ryanair
29 Dec - 04 Jan	Ryanair
26 Dec - 02 Jan	Ryanair

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 163€

Return flights