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

Return flights

07 Dec - 16 Dec	Air Canada
03 Dec - 08 Dec	Spirit Airlines
06 Dec - 12 Dec	Spirit Airlines
15 Dec - 09 Jan	Spirit Airlines
04 Dec - 08 Dec	Spirit Airlines
01 Dec - 05 Dec	Spirit Airlines
10 Dec - 14 Dec	Spirit Airlines
01 Dec - 08 Dec	Spirit Airlines
12 Dec - 15 Dec	Spirit Airlines
11 Dec - 14 Dec	Spirit Airlines
12 Dec - 14 Dec	Spirit Airlines
26 Dec - 16 Jan	Spirit Airlines
16 Dec - 06 Jan	Air Transat
29 Dec - 05 Jan	Spirit Airlines
26 Dec - 06 Jan	Air Transat
17 Dec - 05 Jan	Air Transat
31 Dec - 05 Jan	Air Transat
25 Dec - 02 Jan	Spirit Airlines
23 Dec - 01 Jan	Air Transat
16 Dec - 04 Jan	Air Transat

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 419€

Return flights