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

Return flights

02 Dec - 10 Dec	TAP
02 Dec - 16 Dec	TAP
08 Dec - 16 Dec	Finnair
06 Dec - 16 Dec	TAP
09 Dec - 16 Dec	TAP
02 Dec - 05 Dec	Scandinavian Airlines
02 Dec - 15 Dec	Virgin Atlantic
02 Dec - 10 Dec	Finnair	direct
08 Dec - 16 Dec	Delta	direct
09 Dec - 16 Dec	Delta	direct
29 Dec - 30 Jan	Finnair	direct
10 Dec - 14 Jan	Delta	direct
08 Dec - 07 Jan	Delta
29 Dec - 24 Jan	Virgin Atlantic
30 Dec - 11 Jan	Delta
25 Dec - 17 Jan	TAP
12 Dec - 08 Jan	Virgin Atlantic
29 Dec - 06 Jan	Virgin Atlantic
13 Dec - 09 Jan	Delta
29 Dec - 24 Jan	Finnair	direct

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 376€

Return flights