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

Return flights

09 Dec - 16 Dec	Ryanair
13 Dec - 16 Dec	Ryanair
11 Dec - 13 Dec	Ryanair
09 Dec - 12 Dec	Ryanair
09 Dec - 13 Dec	Ryanair
09 Dec - 11 Dec	Ryanair
14 Dec - 17 Dec	Ryanair
11 Dec - 15 Dec	Ryanair
18 Dec - 06 Jan	Ryanair
25 Dec - 01 Jan	easyJet
08 Dec - 11 Dec	Ryanair
31 Dec - 04 Jan	Ryanair
27 Dec - 06 Jan	Ryanair
16 Dec - 18 Dec	Ryanair
20 Dec - 08 Jan	Ryanair
30 Dec - 06 Jan	Ryanair
30 Dec - 02 Jan	Ryanair
27 Dec - 03 Jan	Ryanair
30 Dec - 03 Jan	Wizz Air
30 Dec - 01 Jan	KLM

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 149€

Return flights