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£424 Cheap British Airways flights from London to San Francisco (LHR→SFO)

View £424 flight on Fri, 8 Oct 2027

Photo by Courtesy of San Francisco International Airport

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  • £424 Cheap British Airways flights London (LHR) to San Francisco (SFO)

    Prices were available within the past 7 days and start at £424 for one-way flights and £577 for return, for the period specified. Prices and availability are subject to change. Additional terms apply.

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    Select British Airways flight, departing Sun, 13 Dec from London to San Francisco, returning Wed, 30 Dec, priced at £577 Found 8 hours ago

    Sun, 13 Dec - Wed, 30 Dec · LHR · SFO · From £577 · Return

    Alternative airports near San Francisco

    Prices were available within the past 7 days. Prices and availability are subject to change.

    Select flight to Norman Y. Mineta San Jose Intl. SJC. Average driving time to city centre is 50 minutes. Flights from £632

    50 min

    Find the cheapest month to fly from London (LHR) to San Francisco (SFO)

    October is typically the cheapest month to fly

    From £424 - £801 per traveller.

    View flights in October

    Insights are based on prices from searches for economy trips of 10 days or less on our sites in the last 12 months. Insights are informative only and current prices may differ.

    Frequently Asked Questions

    How much is a British Airways flight from Heathrow Airport (LHR) to San Francisco Intl. Airport (SFO)?

    Landing cheap one-way British Airways flights from LHR to SFO from £424 on Expedia is easy — just filter by "Price (lowest to highest)." Alternatively, check out our budget-friendly round-trip fares £577 for your next getaway.*

    *These prices were available on Expedia within the past 7 days, for flights departing within the next year. Prices and availability are subject to change. Additional terms apply.

    What is the cheapest month to fly from LHR to SFO with British Airways?

    British Airways flights to San Francisco are usually more affordable in the low-season months of February and April. Whether you're after a return or one-way ticket, you could score a better deal then.

    Does British Airways fly nonstop from Heathrow Airport (LHR) to San Francisco Intl. Airport (SFO)?

    Easily travel from Heathrow Airport (LHR) to San Francisco Intl. Airport (SFO) on one of British Airways's 11 weekly direct flights. Apply our "Nonstop" and "Airline" filters to find the British Airways flight that'll take you to SFO at a time that suits you.

    How long does it take to fly from LHR to SFO with British Airways?

    It takes approximately 11h 17m to travel nonstop from Heathrow Airport (LHR) to San Francisco Intl. Airport (SFO) with British Airways.

    Which day of the week has the most British Airways flights from Heathrow Airport (LHR) to San Francisco Intl. Airport (SFO)?

    Wednesday has the most British Airways flights from Heathrow Airport (LHR) to San Francisco Intl. Airport (SFO). With 2 daily departures, this is the best day of the week to book something that will fit your plans.

    What airports does British Airways fly into in San Francisco?

    Hop on a British Airways flight from Heathrow Airport (LHR) to San Francisco, and you'll probably touch down at San Francisco Intl. Airport (SFO). This is the airline's main hub in this destination.

    What kind of luggage can I take on a British Airways flight from Heathrow Airport (LHR) to San Francisco Intl. Airport (SFO)?

    On a standard economy flight with British Airways from LHR to SFO, passengers can bring 1 checked-in bag up to 23 kg (50 lbs) with dimensions not exceeding 89 centimetres x 41 centimetres x 74 centimetres in total. For carry-on, you're allowed 1 cabin bag weighing up to 23 kg (50 lbs) and measuring no more than 56 centimetres x 23 centimetres x 43 centimetres. Size and weight limits can differ based on your cabin class and fare type. To make sure you're not hit with extra fees at the airport, double-check your British Airways booking or go to the airline's website before packing your bags.

    What type of plane does British Airways fly from Heathrow Airport (LHR) to San Francisco Intl. Airport (SFO)?

    For the Heathrow Airport (LHR) to San Francisco Intl. Airport (SFO) route, British Airways typically operates Airbus A380-800 and Boeing 777-300ER planes. Remember that last-minute changes can occur for operational reasons, meaning your flight could be on a different aircraft.

    Can I change or cancel my British Airways flight from Heathrow Airport (LHR) to San Francisco Intl. Airport (SFO)?

    Depending on the ticket type you purchased, a fee is typically charged if you modify or cancel your flight more than 24 hours after it's confirmed. To find flexible fares, select our "No cancel fee" or "Changes included" filter when you search for flights. To learn more about cancelling or changing your reservation, head to "Trips," select your flight and tick "Manage Booking."

    Travel information

    Origin airportHeathrow Airport
    Destination airportSan Francisco International Airport
    Distance5,354 miles away
    Airline nameBritish Airways
    Airline codeBA
    Return price£577
    Average flight time11 hours 12 mins

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