AirHint found the following cheapest return flights from Raleigh-durham (RDU) to Dublin (DUB) in December 2025 (see full year).

Return flights

03 Dec - 10 Dec	Icelandair
29 Dec - 24 Jan	Icelandair
08 Dec - 15 Dec	Icelandair
02 Dec - 09 Dec	Delta
10 Dec - 17 Dec	Austrian Airlines
08 Dec - 13 Dec	Icelandair
29 Dec - 07 Jan	Lufthansa
16 Dec - 23 Dec	Air France
14 Dec - 21 Dec	Icelandair
06 Dec - 13 Dec	Aer Lingus
22 Dec - 17 Jan	Air France
12 Dec - 19 Dec	Southwest Airlines
26 Dec - 30 Dec	British Airways
31 Dec - 04 Jan	Spirit Airlines
11 Dec - 03 Jan	Frontier Airlines
30 Dec - 06 Jan	Aer Lingus
28 Dec - 04 Jan	Aer Lingus
26 Dec - 02 Jan	Aer Lingus

Also check the deals for one-way flights from Raleigh-durham to Dublin 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 Raleigh-durham to Dublin in December from $396

Return flights