United States

San Francisco

London → San Francisco

£429Round trip

20 Jan3 Feb 202714 nights

Good deal£195below typical

31% lessTypical fare £624

DepartureWed, 20 Jan 2027

14:45LHR

16h 11m1 stop

22:56SFO

Alaska AirlinesLayover in Seattle · 3h 54m

ReturnWed, 3 Feb 2027

14:12SFO

14h 8m1 stop

12:20LHR

Arrives 4 Feb 2027

Alaska AirlinesLayover in Seattle · 2h 14m

The price, in perspective

7 days before and after 20 Jan

Daily minimumDaily averageCheaper dates

Your trip£429

Same cities and travel dates. Airlines and flight times may change.

Observed price

Now£429

Unchanged since first recorded.

Recorded observations · Not a forecast

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Observed 24 Oct 2026, 16:37 · Recheck live price before booking.