United States

San Francisco

London → San Francisco

£428Round trip

4 Dec7 Dec 20263 nights

Good deal£199below typical

32% lessTypical fare £627

DepartureFri, 4 Dec 2026

14:45LHR

14h 7m1 stop

20:52SFO

Alaska AirlinesLayover in Seattle · 1h 40m

ReturnMon, 7 Dec 2026

12:39SFO

15h 41m1 stop

12:20LHR

Arrives 8 Dec 2026

Alaska AirlinesLayover in Seattle · 3h 50m

The price, in perspective

7 days before and after 4 Dec

Daily minimumDaily averageCheaper dates

Your trip£428

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

Observed price

Now£428

Unchanged since first recorded.

Recorded observations · Not a forecast

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Observed 24 Oct 2026, 15:45 · Recheck live price before booking.