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

Return flights

04 Dec - 07 Dec	Turkish Airlines
15 Dec - 31 Dec	Lufthansa
22 Dec - 31 Dec	SWISS
08 Dec - 11 Dec	SWISS
10 Dec - 16 Dec	Air Serbia
27 Dec - 30 Dec	Turkish Airlines
27 Dec - 01 Jan	Air Serbia
27 Dec - 06 Jan	Air Serbia
26 Dec - 04 Jan	Turkish Airlines
24 Dec - 01 Jan	Air Serbia
19 Dec - 10 Jan	Lufthansa
02 Dec - 07 Dec	Air France
20 Dec - 30 Dec	Air Serbia
01 Dec - 30 Dec	Turkish Airlines
29 Dec - 08 Jan	Turkish Airlines
31 Dec - 04 Jan	Air Serbia
24 Dec - 28 Dec	Air Serbia
25 Dec - 06 Jan	SWISS
31 Dec - 06 Jan	Air Serbia
27 Dec - 04 Jan	Air Serbia

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 606€

Return flights