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

Return flights

17 Dec - 31 Dec	Wizz Air Malta	direct
19 Dec - 31 Dec	Wizz Air Malta	direct
25 Dec - 31 Dec	Wizz Air Malta	direct
24 Dec - 31 Dec	Wizz Air Malta	direct
13 Dec - 31 Dec	Wizz Air Malta	direct
12 Dec - 31 Dec	Wizz Air Malta	direct
17 Dec - 29 Dec	Wizz Air Malta	direct
10 Dec - 29 Dec	Wizz Air Malta	direct
13 Dec - 16 Dec	Lufthansa
19 Dec - 29 Dec	Wizz Air Malta	direct

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 82€

Return flights