AirHint found the following cheapest return flights from New York (NYC) to London (STN) in December 2026 (see full year).

Return flights

03 Dec - 06 Dec	TAP
04 Dec - 15 Dec	SWISS
02 Dec - 08 Dec	Iberia
19 Dec - 30 Dec	Air Serbia
18 Dec - 03 Jan	FrenchBee
03 Dec - 08 Dec	Turkish Airlines
22 Dec - 29 Dec	Iberia
15 Dec - 29 Dec	Iberia
23 Dec - 30 Dec	TAP
25 Dec - 30 Dec	Iberia
05 Dec - 02 Jan	TAP
23 Dec - 02 Jan	TAP
19 Dec - 02 Jan	Iberia
25 Dec - 02 Jan	Iberia
20 Dec - 02 Jan	Iberia
19 Dec - 03 Jan	Iberia
20 Dec - 03 Jan	TAP
13 Dec - 08 Jan	Royal Air Maroc
18 Dec - 05 Jan	Royal Air Maroc
15 Dec - 31 Dec	Turkish Airlines

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 $671

Return flights