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

Return flights

31 Dec - 15 Jan	Lufthansa
31 Dec - 16 Jan	Lufthansa
31 Dec - 14 Jan	Lufthansa
07 Dec - 14 Dec	Brussels Airlines
10 Dec - 16 Dec	SWISS
09 Dec - 16 Dec	SWISS
10 Dec - 13 Jan	SWISS
06 Dec - 13 Dec	SWISS
31 Dec - 14 Jan	Scandinavian Airlines	direct
31 Dec - 15 Jan	Scandinavian Airlines	direct
31 Dec - 16 Jan	Scandinavian Airlines	direct
10 Dec - 17 Dec	SWISS
11 Dec - 17 Dec	Iberia
24 Dec - 31 Dec	KLM
11 Dec - 18 Dec	Iberia
29 Dec - 11 Jan	Iberia
11 Dec - 21 Dec	Iberia
11 Dec - 19 Dec	SWISS
29 Dec - 11 Jan	Scandinavian Airlines	direct
26 Dec - 21 Jan	Finnair

Also check the deals for one-way flights from New York to Copenhagen 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 Copenhagen in December from 364€

Return flights