£276 Cheap British Airways flights from San Francisco to London (SFO→LHR)

View £276 flight on Wed, 24 Sept 2025Opens in a new window
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British Airways flights from San Francisco to London (SFO→LHR)

Prices were available within the past 7 days and start at £276 for one-way flights and £434 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

British Airways
Wed, 10 Dec - Wed, 17 Dec
SFO
San Francisco
LHR
London
£434 Return, found 1 day ago
£434
Return
found 1 day ago
Select British Airways flight, departing Wed, 10 Dec from San Francisco to London, returning Wed, 17 Dec, priced at £434 found 1 day ago
British Airways
Sun, 19 Oct - Wed, 11 Feb
SFO
San Francisco
LHR
London
£438 Return, just found
£438
Return
just found
Select British Airways flight, departing Sun, 19 Oct from San Francisco to London, returning Wed, 11 Feb, priced at £438 just found
Flight from San Francisco to London route information
Origin airport
San Francisco Intl.
Destination airport
Heathrow
Airlines serving
Aer Lingus, Air Canada, Air France, Alaska Airlines, Austrian Airlines, British Airways, Brussels Airlines, Finnair, Iberia, Icelandair, JetBlue Airways, KLM, Lufthansa, Scandinavian Airlines, Swiss International Air Lines, TAP Portugal, Turkish Airlines, United, Virgin Atlantic, WestJet
Popular airline
KLM
Distance
8567 km
Average flight time
18 hours 20 mins

Frequently asked questions

How much is a British Airways flight from San Francisco Intl. Airport (SFO) to Heathrow Airport (LHR)?
You can discover budget-friendly return British Airways flights from £434 from SFO to LHR by filtering your results from "Price (lowest to highest)" on Expedia. Or search for bargains from £276 for a one-way journey.**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 SFO to LHR with British Airways?
January is one of the most affordable months to get away to London with British Airways. You could also find great prices on one-way and round-trip tickets in February.
Does British Airways fly nonstop from San Francisco Intl. Airport (SFO) to Heathrow Airport (LHR)?
Depart on one of British Airways's 11 weekly direct flights from San Francisco Intl. Airport (SFO) to Heathrow Airport (LHR). To see your choices, enter your origin, destination and dates and hit search. Then use the "Nonstop" and "Airline" filters.
How long does it take to fly from SFO to LHR with British Airways?
Depart San Francisco Intl. Airport (SFO) for Heathrow Airport (LHR) on a nonstop British Airways flight, and you'll be in the sky for approximately 10h 31m.
Which day of the week has the most British Airways flights from San Francisco Intl. Airport (SFO) to Heathrow Airport (LHR)?
Wednesday has the most British Airways flights from San Francisco Intl. Airport (SFO) to Heathrow Airport (LHR). With 2 daily departures, this is the best day to find something that will work for your schedule.
What airports does British Airways fly into in London?
Catch a British Airways flight from San Francisco Intl. Airport (SFO) to London, and you'll most likely arrive at Heathrow Airport (LHR). This is the airline's main hub in this city.
What kind of luggage can I take on a British Airways flight from San Francisco Intl. Airport (SFO) to Heathrow Airport (LHR)?
British Airways allows passengers to bring 1 checked-in bag weighing up to 23 kg (50 lbs) with maximum dimensions of 89 centimetres x 41 centimetres x 74 centimetres on standard economy flights from SFO to LHR. Additionally, you can take 1 cabin bag with you in the cabin. This carry-on luggage must not exceed 56 centimetres x 23 centimetres x 43 centimetres and weigh less than 23 kg (50 lbs). Baggage policies can vary depending on your cabin class and fare type, so check your booking or British Airways's website to avoid any additional fees at the airport.
What type of plane does British Airways fly from San Francisco Intl. Airport (SFO) to Heathrow Airport (LHR)?
British Airways generally uses Airbus A380-800 planes for flights from San Francisco Intl. Airport (SFO) to Heathrow Airport (LHR). This airline also operates the Boeing 777-300ER on this route. Keep in mind that aircraft type can change due to operational requirements, so the plane you catch could be different on the day.
Can I change or cancel my British Airways flight from San Francisco Intl. Airport (SFO) to Heathrow Airport (LHR)?
Depending on the type of ticket you purchased, a fee may apply if you change or cancel your flight more than 24 hours after it has been confirmed. To find plane tickets with more flexibility, select our "No cancel fee" or "Changes included" filter while looking for flights. For more details on cancelling or changing your reservation, head to "Trips," select your flight and click on "Manage Booking."
*Available to Expedia members.