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

Return flights

01 Dec - 08 Dec	easyJet
30 Dec - 06 Jan	KLM
10 Dec - 14 Dec	Air France
24 Dec - 28 Dec	Air France
01 Dec - 07 Dec	Delta
11 Dec - 14 Dec	Delta
24 Dec - 31 Dec	LOT
25 Dec - 30 Dec	Delta
22 Dec - 09 Jan	Air France
25 Dec - 01 Jan	Delta
24 Dec - 04 Jan	Air France
19 Dec - 26 Dec	Air France
30 Dec - 11 Jan	Air France
23 Dec - 28 Dec	Delta
25 Dec - 02 Jan	Delta
20 Dec - 27 Dec	Air Serbia
22 Dec - 05 Jan	SWISS
22 Dec - 04 Jan	Air Serbia
19 Dec - 04 Jan	Air France
27 Dec - 02 Jan	Lufthansa

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 $521

Return flights