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

Return flights

01 Dec - 11 Dec	TAP
10 Dec - 12 Jan	Norse Atlantic Airways (UK)	direct
01 Dec - 12 Dec	TAP
01 Dec - 10 Dec	TAP
14 Dec - 14 Jan	TAP
05 Dec - 08 Dec	TAP
07 Dec - 12 Dec	TAP
03 Dec - 07 Dec	TAP
10 Dec - 16 Jan	TAP
05 Dec - 09 Dec	Norse Atlantic Airways (UK)	direct
02 Dec - 11 Dec	TAP
11 Dec - 14 Dec	TAP
12 Dec - 12 Jan	TAP
04 Dec - 10 Dec	Norse Atlantic Airways
09 Dec - 11 Jan	Iberia
10 Dec - 10 Jan	Norse Atlantic Airways (UK)
01 Dec - 11 Jan	TAP
10 Dec - 16 Jan	Norse Atlantic Airways (UK)	direct
10 Dec - 09 Jan	TAP
10 Dec - 13 Jan	Aer Lingus

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.

Book a cheap hotel in London

Cheap car rent in London

Cheapest return flights from New York to London in December from 315€

Return flights