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

Return flights

31 Dec - 15 Jan	SWISS
31 Dec - 07 Jan	SWISS
30 Dec - 13 Jan	SWISS
31 Dec - 18 Jan	Norse Atlantic Airways (UK)	direct
31 Dec - 12 Jan	Iberia
29 Dec - 13 Jan	SWISS
28 Dec - 20 Jan	Norse Atlantic Airways (UK)	direct
31 Dec - 13 Jan	ITA Airways
27 Dec - 08 Jan	Lufthansa
29 Dec - 16 Jan	Lufthansa
29 Dec - 31 Dec	Norse Atlantic Airways (UK)	direct
27 Dec - 30 Dec	Air Europa
27 Dec - 29 Dec	Lufthansa
27 Dec - 28 Dec	Lufthansa
29 Dec - 30 Dec	Norse Atlantic Airways (UK)	direct
27 Dec - 31 Dec	Air Europa

Also check the deals for one-way flights from New York to London 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 London in December from 443€

Return flights