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

Return flights

12 Dec - 11 Jan	Air Canada
08 Dec - 15 Dec	United
05 Dec - 12 Dec	United
01 Dec - 08 Dec	United
03 Dec - 10 Dec	United
03 Dec - 12 Dec	United
09 Dec - 16 Dec	United
12 Dec - 23 Dec	United
11 Dec - 18 Dec	United
07 Dec - 14 Dec	United
25 Dec - 13 Jan	United
16 Dec - 10 Jan	United
31 Dec - 07 Jan	United
13 Dec - 20 Dec	United
29 Dec - 05 Jan	United
25 Dec - 01 Jan	United
22 Dec - 03 Jan	Delta
25 Dec - 02 Jan	United
16 Dec - 02 Jan	United
22 Dec - 06 Jan	Air Canada

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.

Book a cheap hotel in Dublin

Cheap car rent in Dublin

Cheapest return flights from New York to Dublin in December from 277€

Return flights