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

Return flights

12 Dec - 16 Dec	Ryanair
11 Dec - 15 Dec	Wizz Air
11 Dec - 12 Dec	Wizz Air
09 Dec - 16 Dec	Wizz Air
13 Dec - 15 Dec	Wizz Air
08 Dec - 12 Dec	Ryanair
04 Dec - 11 Dec	Wizz Air
16 Dec - 17 Dec	Wizz Air
10 Dec - 11 Dec	Ryanair
07 Dec - 10 Dec	Ryanair
28 Dec - 01 Jan	Ryanair
31 Dec - 03 Jan	Ryanair
29 Dec - 01 Jan	Ryanair
27 Dec - 08 Jan	Wizz Air
26 Dec - 03 Jan	Ryanair
29 Dec - 03 Jan	Ryanair
30 Dec - 03 Jan	Ryanair
27 Dec - 05 Jan	Wizz Air
31 Dec - 06 Jan	Ryanair
26 Dec - 06 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 $121

Return flights