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

Return flights

05 Dec - 10 Dec	SWISS
08 Dec - 15 Dec	SWISS
04 Dec - 10 Dec	Air Canada
07 Dec - 14 Dec	SWISS
02 Dec - 17 Jan	TAP
13 Dec - 09 Jan	Spirit Airlines
14 Dec - 11 Jan	Spirit Airlines
05 Dec - 13 Dec	SWISS
14 Dec - 10 Jan	Spirit Airlines
10 Dec - 15 Dec	SWISS
06 Dec - 12 Dec	Spirit Airlines
06 Dec - 11 Dec	Spirit Airlines
14 Dec - 25 Jan	Spirit Airlines
02 Dec - 15 Dec	TAP
12 Dec - 08 Jan	Spirit Airlines
09 Dec - 16 Dec	SWISS
11 Dec - 08 Jan	Spirit Airlines
14 Dec - 08 Jan	Spirit Airlines
14 Dec - 09 Jan	Spirit Airlines
15 Dec - 10 Jan	Spirit Airlines

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 549€

Return flights