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

Return flights

27 Dec - 14 Jan	TAP
25 Dec - 22 Jan	Lufthansa
31 Dec - 24 Jan	WestJet
25 Dec - 13 Jan	SWISS
29 Dec - 12 Jan	SWISS
29 Dec - 22 Jan	SWISS
29 Dec - 28 Jan	SWISS
27 Dec - 11 Jan	TAP
30 Dec - 07 Jan	Lufthansa
31 Dec - 16 Jan	Lufthansa
25 Dec - 30 Dec	Lufthansa
25 Dec - 28 Dec	Lufthansa
24 Dec - 28 Dec	SWISS
26 Dec - 28 Dec	Lufthansa
24 Dec - 29 Dec	Lufthansa
24 Dec - 30 Dec	SWISS
25 Dec - 31 Dec	Lufthansa
24 Dec - 31 Dec	Lufthansa
27 Dec - 31 Dec	TAP
27 Dec - 30 Dec	SWISS

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 $690

Return flights