$404 Cheap British Airways flights San Francisco (SFO) to London (LHR)

Set the “Price (lowest to highest)” filter on Expedia to search for cheap British Airways return flights from $584 from SFO to LHR. Affordable one-way tickets from $404 are available as well.**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.

British Airways flights to London are typically more affordable in the off-peak months of January and February. Whether you’re searching for a return or one-way ticket, you could score a better deal then.

Check for British Airways flights from SFO to LHR about one month before you want to leave. The most affordable time to reserve an international flight is usually 18 to 29 days ahead of your departure date when you can save 17% versus booking four to five months in advance. Regardless of itinerary and fare class, the best day to book international airfare is usually Sunday. Friday can be the most expensive. Travelers who book on a Sunday can save 17% on average compared to those who book on a Friday.**Ideal booking window recommendation is based on average round-trip ticket prices for January through November for 2024. Best day of the week to book recommendation is based on average round-trip ticket prices for January through October 2024. All data sourced from ARC’s global airline sales database.

Book a seat on one of British Airways’s 11 weekly direct flights from San Francisco Intl. Airport (SFO) to Heathrow Airport (LHR). To see what’s available, enter your origin, destination and dates and hit search. Next, apply the “Nonstop” and “Airline” filters.

Leave San Francisco Intl. Airport (SFO) for Heathrow Airport (LHR) on a nonstop British Airways flight, and you’ll be in the sky for about 10h 31m.

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 of the week to book something that will suit your schedule.

The earliest flight from SFO to LHR with British Airways leaves at 5:30PM UTC-8. You’ll touch down at 12:00PM UTC+0. The last British Airways flight of the day takes off at 8:40PM UTC-8 and arrives at 3:15PM UTC+0. With approximately 20% fewer cancellations for morning and mid-morning flights, setting off early is often the best way to go.**Most reliable time of the day recommendation is based on January through August 2024 flight status data sourced from OAG’s global flight data platform.

Catch a British Airways flight from San Francisco Intl. Airport (SFO) to London, and you’re most likely to come in to Heathrow Airport (LHR). This is the airline’s primary hub in this destination.

British Airways allows passengers to bring 1 checked-in bag weighing up to 50 lb with maximum dimensions of 29 inches x 15 inches x 16 inches on standard economy flights from SFO to LHR. Additionally, you can bring 2 cabin bags in the cabin. This hand luggage must not exceed 19 inches x 9 inches x 17 inches and weigh no more than 50 lb. Baggage policies can vary depending on the cabin class and fare type, so check your booking or British Airways’s website to avoid additional costs at the airport.

Jetting off from SFO to LHR with British Airways comes with a range of perks, including top-tier customer service and an excellent in-flight experience. Plus, when booking through Expedia, One Key™ members can collect OneKeyCash™* to redeem on select future travel purchases. That’s in addition to the British Airways Executive Club points you can earn with British Airways.*OneKeyCash™ disclaimer - OneKeyCash™ is not redeemable for cash and can only be used on Expedia, Hotels.com and Vrbo.

You’ll likely be onboard an Airbus A380-800 or a Boeing 777-300ER when flying British Airways from San Francisco Intl. Airport (SFO) to Heathrow Airport (LHR). However, keep in mind that a different aircraft may be used depending on operational reasons.

Changes are often free within 24 hours of booking, but your airline may charge you after that. For further information about modifying your reservation, go to your “Trips,” select your flight and click on “Manage Booking.” If you want the freedom to change your itinerary without extra charges, apply the “Changes included” and “No cancel fee” filters when planning your next escape.