AirHint found the following cheapest return flights from Luxemburg (LUX) to New York (JFK) in September 2025 (see full year).

Return flights

18 Sep - 22 Sep	Lufthansa
22 Sep - 29 Sep	Lufthansa
24 Sep - 29 Sep	Lufthansa
18 Sep - 01 Oct	Lufthansa
21 Sep - 05 Oct	SWISS
20 Sep - 27 Sep	SWISS
19 Sep - 21 Sep	SWISS
19 Sep - 23 Sep	SWISS
25 Sep - 29 Sep	SWISS
11 Sep - 15 Sep	American Airlines
25 Sep - 04 Oct	SWISS
30 Sep - 09 Oct	SWISS
29 Sep - 10 Oct	British Airways
13 Sep - 27 Sep	Lufthansa
12 Sep - 28 Sep	Lufthansa
29 Sep - 01 Oct	Ryanair

Also check the deals for one-way flights from Luxemburg to New York in September.

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 Luxemburg to New York in September from $462

Return flights