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

Return flights

10 Dec - 10 Jan	Air Canada
04 Dec - 08 Dec	Air Canada
02 Dec - 08 Dec	Air Canada
27 Dec - 10 Jan	Air Canada
05 Dec - 12 Dec	Air Canada
02 Dec - 12 Dec	Air Canada
09 Dec - 14 Dec	Air Canada
04 Dec - 07 Dec	Air Canada
04 Dec - 07 Dec	Aer Lingus	direct
06 Dec - 14 Dec	United
01 Dec - 08 Dec	United
07 Dec - 14 Dec	United
12 Dec - 10 Jan	United
28 Dec - 11 Jan	United
29 Dec - 10 Jan	United
27 Dec - 17 Jan	United
27 Dec - 12 Jan	United
28 Dec - 12 Jan	United
28 Dec - 14 Jan	United
28 Dec - 17 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 274€

Return flights