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

Return flights

07 Dec - 14 Dec	Eurowings	direct
12 Dec - 14 Dec	Eurowings	direct
12 Dec - 16 Dec	Eurowings	direct
05 Dec - 07 Dec	Ryanair
26 Dec - 28 Dec	Eurowings	direct
07 Dec - 12 Dec	Eurowings
30 Dec - 05 Jan	Eurowings	direct
14 Dec - 30 Dec	Eurowings	direct
11 Dec - 13 Dec	Ryanair
12 Dec - 17 Dec	Ryanair
26 Dec - 30 Dec	Eurowings	direct
30 Dec - 07 Jan	Eurowings
28 Dec - 01 Jan	Eurowings
31 Dec - 06 Jan	Air Serbia
30 Dec - 02 Jan	Eurowings	direct
29 Dec - 05 Jan	Air Serbia
28 Dec - 04 Jan	Eurowings	direct
26 Dec - 04 Jan	Eurowings	direct
28 Dec - 02 Jan	Eurowings	direct
21 Dec - 05 Jan	Eurowings	direct

Also check the deals for one-way flights from Duesseldorf 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 Duesseldorf to Bucharest in December from 89€

Return flights