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

Return flights

11 Dec - 16 Dec	Wizz Air Malta
21 Dec - 06 Jan	Wizz Air Malta
13 Dec - 16 Dec	Ryanair
14 Dec - 16 Dec	Wizz Air Malta
15 Dec - 17 Dec	Wizz Air Malta
13 Dec - 15 Dec	Lufthansa
07 Dec - 16 Dec	Animawings
09 Dec - 16 Dec	HiSky Europe
17 Dec - 24 Dec	Lufthansa
07 Dec - 09 Dec	Ryanair
15 Dec - 18 Dec	Wizz Air Malta
27 Dec - 02 Jan	Wizz Air Malta
24 Dec - 02 Jan	KLM
23 Dec - 02 Jan	KLM
27 Dec - 06 Jan	TAROM
31 Dec - 05 Jan	KLM
26 Dec - 02 Jan	Ryanair
30 Dec - 03 Jan	HiSky Europe
26 Dec - 03 Jan	Ryanair
27 Dec - 03 Jan	Lufthansa

Also check the deals for one-way flights from Bucharest 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 Bucharest to Basel in December from 127€

Return flights