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

Return flights

13 Dec - 27 Dec	Wizz Air Malta	direct
02 Dec - 09 Dec	Wizz Air Malta	direct
06 Dec - 09 Dec	Wizz Air Malta	direct
09 Dec - 27 Dec	Wizz Air Malta	direct
02 Dec - 06 Dec	Wizz Air Malta	direct
20 Dec - 27 Dec	Wizz Air Malta	direct
13 Dec - 16 Dec	Wizz Air Malta	direct
02 Dec - 16 Dec	Wizz Air Malta	direct
06 Dec - 16 Dec	Wizz Air Malta	direct
09 Dec - 16 Dec	Wizz Air Malta	direct
20 Dec - 03 Jan	Wizz Air Malta	direct
30 Dec - 03 Jan	Wizz Air Malta	direct

Also check the deals for one-way flights from Bucharest to Santander 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 Santander in December from $142

Return flights