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

Return flights

28 Aug - 11 Sep	KLM
27 Aug - 31 Aug	Delta
25 Aug - 01 Sep	KLM
10 Aug - 17 Aug	British Airways
08 Aug - 15 Aug	British Airways
13 Aug - 03 Sep	SWISS
26 Aug - 02 Sep	Delta
18 Aug - 08 Sep	Brussels Airlines
30 Aug - 01 Sep	KLM
01 Aug - 31 Aug	KLM
09 Aug - 15 Aug	British Airways
07 Aug - 14 Aug	British Airways
07 Aug - 11 Aug	British Airways
23 Aug - 31 Aug	Brussels Airlines
14 Aug - 21 Aug	KLM
21 Aug - 31 Aug	Brussels Airlines

Also check the deals for one-way flights from Ljubljana to New York in August.

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 August from 590€

Return flights