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

Return flights

04 Dec - 10 Dec	TAP
02 Dec - 10 Dec	TAP
27 Dec - 14 Jan	TAP
08 Dec - 15 Dec	British Airways
02 Dec - 04 Dec	TAP
31 Dec - 14 Jan	SWISS
29 Dec - 24 Jan	SWISS
05 Dec - 14 Dec	Spirit Airlines
15 Dec - 10 Jan	SWISS
13 Dec - 20 Dec	Lufthansa
12 Dec - 22 Dec	SWISS
03 Dec - 27 Dec	SWISS
04 Dec - 13 Dec	SWISS
24 Dec - 31 Dec	Lufthansa
25 Dec - 17 Jan	TAP
30 Dec - 06 Jan	SWISS
17 Dec - 10 Jan	Spirit Airlines
23 Dec - 17 Jan	Sun Country Airlines
25 Dec - 08 Jan	SWISS
18 Dec - 05 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 $435

Return flights