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

Return flights

29 Dec - 16 Jan	Icelandair
08 Dec - 14 Dec	Air Canada
10 Dec - 14 Dec	TAP
11 Dec - 14 Dec	Scandinavian Airlines
07 Dec - 14 Dec	Scandinavian Airlines
09 Dec - 14 Dec	SWISS
11 Dec - 16 Dec	ITA Airways
10 Dec - 16 Dec	Lufthansa
12 Dec - 18 Jan	Frontier Airlines
10 Dec - 17 Dec	Air Europa
11 Dec - 18 Dec	Icelandair
27 Dec - 15 Jan	ITA Airways
31 Dec - 07 Jan	Scandinavian Airlines
12 Dec - 08 Jan	KLM
12 Dec - 06 Jan	KLM
29 Dec - 08 Jan	Aer Lingus
12 Dec - 05 Jan	KLM
12 Dec - 07 Jan	KLM
30 Dec - 06 Jan	Air Serbia
15 Dec - 22 Dec	Norse Atlantic Airways

Also check the deals for one-way flights from New York to Brussels 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 New York to Brussels in December from 463€

Return flights