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

Return flights

12 Dec - 11 Jan	Breeze Airways
13 Dec - 12 Jan	Frontier Airlines
13 Dec - 11 Jan	Frontier Airlines
10 Dec - 17 Dec	Lufthansa
15 Dec - 13 Jan	Lufthansa
13 Dec - 13 Jan	Frontier Airlines
11 Dec - 18 Dec	Lufthansa
13 Dec - 09 Jan	Breeze Airways
13 Dec - 08 Jan	Frontier Airlines
14 Dec - 08 Jan	Frontier Airlines
15 Dec - 08 Jan	Lufthansa
16 Dec - 08 Jan	Lufthansa
11 Dec - 15 Dec	Lufthansa
15 Dec - 29 Dec	Delta
13 Dec - 28 Dec	Frontier Airlines
15 Dec - 28 Dec	Frontier Airlines
16 Dec - 28 Dec	Frontier Airlines
15 Dec - 30 Dec	British Airways
18 Dec - 28 Dec	Breeze Airways

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 596€

Return flights