Flights

Flights from London to San Francisco

Fares we've seen from London (LHR) to San Francisco (SFO) start from US$474 on 17 Dec 2026 with Alaska Airlines. Prices come from partner searches in the last 48 hours and change quickly, so look before you book.

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Compare London to San Francisco on your dates and see current fares from our sources, listed by price.

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Fares by month

MonthSeen fromDateAirline
October 2026US$60029 Oct 2026WestJet · 2 stopsCheck now
November 2026US$5278 Nov 2026Iberia · 2 stopsCheck now
December 2026US$47417 Dec 2026Alaska Airlines · 1 stopCheck now

One-way fares in US dollars, last seen on Aviasales. They can change at any time and may not be available on every day of the month. Partner links: we may earn a commission if you book, at no extra cost to you.

Airlines on this route

Airlines we've seen with fares on this route, listed by price:

  • Alaska Airlines: from US$474 (with a stop)
  • American Airlines: from US$500 (with a stop)
  • Iberia: from US$527 (with a stop)
  • Vueling: from US$533 (with a stop)
  • British Airways: from US$575 (with a stop)
  • WestJet: from US$600 (with a stop)
  • Avianca: from US$821 (with a stop)
  • Aer Lingus: from US$874 (with a stop)

Plan the rest of your trip to San Francisco

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Questions about London to San Francisco flights

How much do flights from London to San Francisco cost? Fares we've seen start from US$474 on 17 Dec 2026 with Alaska Airlines. Fares change quickly, so look before you book.

When can I save on flights from London to San Francisco? Among the next six months we checked, December 2026 had fares from US$474 in our data, while October 2026 reached US$600. Prices vary by date, so compare several days and save.

Which airlines fly from London to San Francisco? We've seen fares from Alaska Airlines, American Airlines, Iberia, Vueling, British Airways, WestJet, Avianca, Aer Lingus. This reflects recent searches, not a complete timetable.

Are there direct flights from London to San Francisco? Among 12 recent fares we saw no direct flights, so most itineraries include a stop. Check the booking page for the full options.

Is FindMyFlight free to use? Yes. We never add anything to the fare. If you book through a partner link we may earn a commission from the partner, at no extra cost to you.

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