AirHint found the following cheapest return flights from Ljubljana (LJU) to New York (JFK) in December 2026 (see full year).

Return flights

05 Dec - 12 Dec	Delta
23 Dec - 08 Jan	Air France
10 Dec - 31 Dec	Air France
10 Dec - 28 Dec	KLM
10 Dec - 27 Dec	KLM
10 Dec - 26 Dec	SWISS
10 Dec - 02 Jan	Turkish Airlines
25 Dec - 02 Jan	Turkish Airlines
23 Dec - 02 Jan	Turkish Airlines
29 Dec - 12 Jan	SWISS
25 Dec - 08 Jan	KLM
10 Dec - 25 Dec	SWISS
27 Dec - 07 Jan	KLM
27 Dec - 08 Jan	KLM
26 Dec - 10 Jan	KLM
26 Dec - 08 Jan	KLM

Also check the deals for one-way flights from Ljubljana to New York 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 Ljubljana to New York in December from 552€

Return flights