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

Return flights

05 Dec - 10 Dec	TAP
06 Dec - 12 Dec	KLM
31 Dec - 07 Jan	Delta
09 Dec - 15 Dec	KLM
06 Dec - 14 Dec	Delta
07 Dec - 14 Dec	Delta
08 Dec - 14 Dec	Delta
10 Dec - 15 Dec	Delta
11 Dec - 15 Dec	Delta
24 Dec - 31 Dec	Air France
06 Dec - 13 Dec	KLM
30 Dec - 07 Jan	KLM
25 Dec - 01 Jan	British Airways
23 Dec - 01 Jan	Ryanair
24 Dec - 04 Jan	British Airways
26 Dec - 08 Jan	easyJet
24 Dec - 01 Jan	easyJet
28 Dec - 04 Jan	Lufthansa
25 Dec - 04 Jan	SWISS
29 Dec - 04 Jan	Luxair

Also check the deals for one-way flights from Luxemburg 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 Luxemburg to New York in December from 404€

Return flights