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

Return flights

30 Dec - 18 Jan	Air France	direct
05 Dec - 08 Dec	United
12 Dec - 15 Dec	United
04 Dec - 11 Dec	Aer Lingus	direct
05 Dec - 08 Dec	Aer Lingus	direct
05 Dec - 12 Dec	Aer Lingus	direct
06 Dec - 09 Dec	Aer Lingus	direct
12 Dec - 15 Dec	Aer Lingus	direct
09 Dec - 12 Dec	Aer Lingus	direct
11 Dec - 14 Dec	Aer Lingus	direct
14 Dec - 31 Dec	Aer Lingus	direct
28 Dec - 05 Jan	Air France
27 Dec - 03 Jan	Delta
22 Dec - 06 Jan	Icelandair
29 Dec - 02 Jan	Icelandair
22 Dec - 05 Jan	Delta
22 Dec - 02 Jan	Delta
23 Dec - 02 Jan	Delta
22 Dec - 03 Jan	Icelandair
28 Dec - 02 Jan	Icelandair

Also check the deals for one-way flights from New York 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 New York to Dublin in December from 296€

Return flights