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

Return flights

28 Sep - 03 Oct	Ryanair	direct
28 Sep - 01 Oct	Ryanair	direct
28 Sep - 30 Sep	Ryanair
22 Sep - 06 Oct	Ryanair	direct
28 Sep - 29 Sep	Ryanair	direct
30 Sep - 08 Oct	HiSky Europe	direct
24 Sep - 01 Oct	Ryanair	direct
17 Sep - 24 Sep	Ryanair
28 Sep - 30 Sep	Ryanair	direct
24 Sep - 27 Sep	Ryanair
24 Sep - 29 Sep	Ryanair	direct
22 Sep - 26 Sep	Ryanair
21 Sep - 24 Sep	Ryanair
24 Sep - 26 Sep	Ryanair
22 Sep - 26 Sep	Ryanair	direct
26 Sep - 04 Oct	Ryanair
14 Sep - 03 Oct	Ryanair
14 Sep - 03 Oct	HiSky Europe	direct

Also check the deals for one-way flights from Dublin to Cluj-napoca in September.

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 September from 84€

Return flights