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

Return flights

11 Dec - 18 Dec	Wizz Air
11 Dec - 15 Dec	Wizz Air
11 Dec - 12 Dec	Wizz Air
11 Dec - 13 Dec	Wizz Air
15 Dec - 18 Dec	Ryanair
11 Dec - 14 Dec	Wizz Air
10 Dec - 17 Dec	Ryanair
13 Dec - 16 Dec	Wizz Air
16 Dec - 18 Dec	Ryanair
12 Dec - 16 Dec	Ryanair
09 Dec - 13 Jan	Wizz Air
27 Dec - 08 Jan	Ryanair
31 Dec - 03 Jan	Ryanair
26 Dec - 03 Jan	Ryanair
27 Dec - 05 Jan	Ryanair
29 Dec - 01 Jan	Ryanair
29 Dec - 02 Jan	Ryanair
31 Dec - 01 Jan	Ryanair
31 Dec - 04 Jan	Ryanair
31 Dec - 02 Jan	Ryanair

Also check the deals for one-way flights from Warsaw 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 Warsaw to Bucharest in December from $110

Return flights