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

Return flights

03 Dec - 10 Dec	Delta	direct
03 Dec - 17 Dec	Delta	direct
02 Dec - 16 Dec	Finnair
10 Dec - 17 Dec	Delta
07 Dec - 14 Dec	Aer Lingus	direct
02 Dec - 10 Dec	Aer Lingus	direct
04 Dec - 08 Dec	Air Canada
12 Dec - 15 Dec	Aer Lingus	direct
13 Dec - 16 Dec	Aer Lingus	direct
05 Dec - 08 Dec	Aer Lingus	direct
30 Dec - 10 Jan	Finnair
30 Dec - 24 Jan	Finnair
29 Dec - 24 Jan	Finnair
16 Dec - 14 Jan	Finnair
29 Dec - 06 Jan	Finnair
15 Dec - 10 Jan	Aer Lingus	direct
16 Dec - 10 Jan	Finnair
16 Dec - 06 Jan	Finnair
15 Dec - 06 Jan	Aer Lingus	direct
23 Dec - 21 Jan	Finnair

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 $318

Return flights