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

Return flights

05 Dec - 15 Dec	SWISS
03 Dec - 11 Dec	SWISS
25 Dec - 31 Dec	TAP
02 Dec - 16 Dec	Norse Atlantic Airways
02 Dec - 09 Dec	SWISS
16 Dec - 23 Dec	SWISS
28 Dec - 10 Jan	Iberia
28 Dec - 11 Jan	Iberia
23 Dec - 19 Jan	TAP
11 Dec - 30 Dec	Iberia
16 Dec - 26 Dec	SWISS
16 Dec - 06 Jan	SWISS
23 Dec - 30 Dec	Norse Atlantic Airways
23 Dec - 14 Jan	SWISS
23 Dec - 05 Jan	TAP
26 Dec - 07 Jan	Air Tahiti Nui
14 Dec - 26 Dec	SWISS
27 Dec - 10 Jan	SWISS
23 Dec - 06 Jan	SWISS
18 Dec - 04 Jan	TAP

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 466€

Return flights