AirHint found the following cheapest return flights from Atlanta (ATL) to Dublin (DUB) in December 2025 (see full year).

Return flights

03 Dec - 10 Dec	Aer Lingus
08 Dec - 15 Dec	Aer Lingus
26 Dec - 23 Jan	Scandinavian Airlines
12 Dec - 21 Dec	Spirit Airlines
13 Dec - 20 Dec	jetBlue
12 Dec - 21 Dec	Air France	direct
28 Dec - 04 Jan	United
21 Dec - 31 Dec	Delta	direct
23 Dec - 30 Dec	Aer Lingus

Also check the deals for one-way flights from Atlanta 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 Atlanta to Dublin in December from 599€

Return flights