AirHint found the following cheapest return flights from Dublin (DUB) to Cluj-napoca (CLJ) in December 2025 (see full year).

Return flights

09 Dec - 13 Dec	Ryanair	direct
06 Dec - 07 Dec	Ryanair	direct
23 Dec - 31 Dec	Aer Lingus
09 Dec - 04 Jan	Ryanair
18 Dec - 11 Jan	Lufthansa
26 Dec - 02 Jan	Ryanair
28 Dec - 02 Jan	HiSky Europe
23 Dec - 31 Dec	Ryanair	direct
19 Dec - 05 Jan	Ryanair
20 Dec - 30 Dec	Ryanair
29 Dec - 02 Jan	Ryanair
19 Dec - 06 Jan	Ryanair
27 Dec - 03 Jan	Ryanair
17 Dec - 03 Jan	Lufthansa
20 Dec - 06 Jan	Lufthansa
20 Dec - 30 Dec	Ryanair	direct

Also check the deals for one-way flights from Dublin to Cluj-napoca 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 Dublin to Cluj-napoca in December from 68€

Return flights