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

Return flights

29 Dec - 13 Jan	Air France	direct
27 Dec - 13 Jan	Delta
29 Dec - 12 Jan	Delta
27 Dec - 14 Jan	Delta
29 Dec - 24 Jan	Iberia
24 Dec - 10 Jan	SWISS
28 Dec - 14 Jan	Iberia
25 Dec - 13 Jan	British Airways
24 Dec - 07 Jan	SWISS
30 Dec - 08 Jan	SWISS
24 Dec - 27 Dec	SWISS
25 Dec - 28 Dec	British Airways
27 Dec - 29 Dec	Delta
25 Dec - 29 Dec	British Airways
25 Dec - 31 Dec	Lufthansa
25 Dec - 30 Dec	Finnair
24 Dec - 30 Dec	Air France
25 Dec - 27 Dec	Lufthansa
26 Dec - 30 Dec	British Airways
28 Dec - 31 Dec	Delta

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 $349

Return flights