AirHint found the following cheapest return flights from Los Angeles (LAX) to London (LGW) in December 2025 (see full year).

Return flights

01 Dec - 08 Dec	SWISS
03 Dec - 11 Dec	Iberia
07 Dec - 14 Dec	SWISS
01 Dec - 04 Dec	Norse Atlantic Airways
06 Dec - 20 Dec	SWISS
13 Dec - 15 Dec	Norse Atlantic Airways
30 Dec - 09 Jan	SWISS
27 Dec - 16 Jan	American Airlines
25 Dec - 08 Jan	Iberia
28 Dec - 11 Jan	SWISS
28 Dec - 06 Jan	SWISS
21 Dec - 07 Jan	Lufthansa
22 Dec - 05 Jan	Lufthansa
18 Dec - 29 Dec	Norse Atlantic Airways
27 Dec - 06 Jan	SWISS
17 Dec - 28 Dec	Lufthansa
20 Dec - 10 Jan	Norse Atlantic Airways
21 Dec - 27 Dec	SWISS
20 Dec - 03 Jan	Sun Country Airlines
28 Dec - 29 Dec	Air Tahiti Nui

Also check the deals for one-way flights from Los Angeles 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 Los Angeles to London in December from $507

Return flights