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

Return flights

01 Dec - 08 Dec	Aer Lingus	direct
02 Dec - 16 Dec	Delta
11 Dec - 14 Dec	Air Canada
02 Dec - 16 Dec	Aer Lingus	direct
11 Dec - 16 Dec	Aer Lingus	direct
13 Dec - 16 Dec	Aer Lingus	direct
05 Dec - 07 Dec	Aer Lingus	direct
04 Dec - 11 Dec	Aer Lingus	direct
11 Dec - 14 Dec	United	direct
10 Dec - 22 Dec	United	direct
16 Dec - 14 Jan	Delta
27 Dec - 17 Jan	KLM
14 Dec - 09 Jan	Icelandair
16 Dec - 14 Jan	Aer Lingus	direct
29 Dec - 24 Jan	Aer Lingus	direct
14 Dec - 09 Jan	United	direct
25 Dec - 09 Jan	Air Canada
15 Dec - 10 Jan	United
25 Dec - 14 Jan	Air Canada
09 Dec - 07 Jan	Lufthansa

Also check the deals for one-way flights from Newark 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 Newark to Dublin in December from $331

Return flights