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

Return flights

01 Dec - 04 Dec	Ryanair
02 Dec - 04 Dec	Ryanair
02 Dec - 04 Dec	Wizz Air Malta	direct
02 Dec - 09 Dec	Wizz Air Malta	direct
02 Dec - 06 Dec	Wizz Air Malta	direct
05 Dec - 09 Dec	Wizz Air Malta
04 Dec - 08 Dec	Ryanair
02 Dec - 03 Dec	Wizz Air Malta
09 Dec - 23 Dec	Wizz Air Malta	direct
11 Dec - 23 Dec	Wizz Air Malta	direct
26 Dec - 02 Jan	Ryanair
27 Dec - 03 Jan	Wizz Air Malta
27 Dec - 03 Jan	Wizz Air Malta	direct

Also check the deals for one-way flights from Porto to Bucharest 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 Porto to Bucharest in December from 137€

Return flights