£325 Cheap British Airways flights from London to San Francisco (LHR→SFO)

View £325 flight on Mon, 2 Mar 2026Opens in a new window
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British Airways flights from London to San Francisco (LHR→SFO)

Prices were available within the past 7 days and start at £325 for one-way flights and £395 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

British Airways
Mon, 2 Mar - Mon, 16 Mar
LHR
London
SFO
San Francisco
£395 Return, just found
£395
Return
just found
Select British Airways flight, departing Mon, 2 Mar from London to San Francisco, returning Mon, 16 Mar, priced at £395 just found
British Airways
Mon, 2 Mar - Mon, 16 Mar
LHR
London
SFO
San Francisco
£399 Return, just found
£399
Return
just found
Select British Airways flight, departing Mon, 2 Mar from London to San Francisco, returning Mon, 16 Mar, priced at £399 just found
Flight from London to San Francisco route information
Origin airport
Heathrow
Destination airport
San Francisco Intl.
Airlines serving
Aer Lingus, Air Canada, Air France, Austrian Airlines, British Airways, Brussels Airlines, Finnair, Iberia, Icelandair, JetBlue Airways, KLM, Lufthansa, Scandinavian Airlines, Singapore Airlines, Swiss International Air Lines, TAP Portugal, Turkish Airlines, United, Virgin Atlantic, WestJet
Popular airline
British Airways
Distance
8567 km
Average flight time
3 hours 4 mins

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 £325 on Expedia is easy — just filter by "Price (lowest to highest)." Alternatively, check out our budget-friendly round-trip fares from £395 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."
*Available to Expedia members.