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Cheap flights from London to Los Angeles

Cheapest return fare right now: £43013 Dec – 24 Dec · Alaska Airlines

Direct flights: No
Typical flight time: 12 h 59 min
Price range seen: £430 – £644
Cheapest month (next 3 months): December 2026

Best dates

Dates	Nights	Airline	Stops	From	Price
13 Dec – 24 Dec	11	Alaska Airlines	1	London Heathrow	£430	Book →
22 Oct – 8 Nov	16	TAP Air Portugal	1	London Heathrow	£559	Book →
22 Oct – 8 Nov	17	Wizz Air UK	2	London Luton	£643	Book →
21 Oct – 6 Nov	17	ITA Airways	1	London Heathrow	£644	Book →

Prices checked on 12 October 2026.

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