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

Return flights

05 Dec - 08 Dec	Air Canada
04 Dec - 08 Dec	Air Canada
05 Dec - 10 Dec	United
05 Dec - 07 Dec	United
31 Dec - 18 Jan	United
07 Dec - 14 Dec	KLM	direct
04 Dec - 08 Dec	KLM	direct
04 Dec - 10 Dec	United
30 Dec - 18 Jan	United
05 Dec - 08 Dec	KLM	direct
05 Dec - 11 Dec	United	direct
11 Dec - 15 Dec	United	direct
30 Dec - 11 Jan	Aer Lingus	direct
31 Dec - 12 Jan	Aer Lingus	direct
11 Dec - 12 Jan	United	direct
31 Dec - 18 Jan	Aer Lingus	direct
31 Dec - 08 Jan	Aer Lingus	direct
15 Dec - 22 Jan	United	direct
12 Dec - 07 Jan	Air Canada
29 Dec - 24 Jan	United

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 281€

Return flights