Cheap flights from London to San Francisco from £208

Saturday flights are generally found to be more expensive for flights from London to San Francisco. This shouldn’t discourage you from searching, as you can still find great deals by being flexible with your options. Use our search form to find deals on tickets to San Francisco.

When searching for a good deal, it’s best to be prepared for potential fluctuations in price. We recommend booking at least 43 days in advance, which can save you up to 23% on flights from London to San Francisco compared to booking the week you need them. Waiting 43 days out may not be for everyone, so we have options available for flights within the next two weeks, with the lowest price starting at £501. For sooner than that we have options available in the next 3 days from £581.

February can be a great time to fly to San Francisco from London with a flight ticket averaging about £482. Cheapflights users have found deals in the month of February for as cheap as £306. The most expensive prices can be found in the month of July.

Unlike at midday, when flights are generally more expensive, you can save up to 5% on flights from London to San Francisco by exploring options for tickets in the morning.

San Francisco (SFO) is the airport you will fly into if you book a flight from London to San Francisco. You should not have trouble finding flights to San Francisco from London; the airport handles an average of 31 inbound flights from London per day. You should also have plenty of airline options to choose from since 19 airlines have flights to the San Francisco airport from London. It is only a 11.8 mi journey from San Francisco (SFO) to San Francisco’s city center.

Yes, there are multiple flights from London to San Francisco for under £400. The cheapest flight booked recently is on Virgin Atlantic for just £342, but on average you can expect to pay £350.

Cheapflights has at least 20 direct flights from London to San Francisco under £400. A good price for a nonstop flight from London to San Francisco is less than £353.

There are currently 20+ open flights from London to San Francisco within the next 7 days for less than £400.

Days when direct flights are available for this flight are: Tuesday, Wednesday.

1 flight departure from London to San Francisco per day on average.
Afternoon (Midday - 6pm) - 100% of flight departures

There are many flights that can get you from London to San Francisco in 11h 10m. Fly via Virgin Atlantic or TAP AIR PORTUGAL to get the fastest option. London and San Francisco are separated by a distance of 5383 mi. This flight may include one or multiple stops.

Flying on Virgin Atlantic is currently your cheapest option to San Francisco, with prices starting at £342. Another option worth looking into is TAP AIR PORTUGAL, starting at £351 return. Virgin Atlantic is priced at 29% lower than the current average price of a flight leaving 3 months from now.

When deciding which route to take from London to San Francisco consider London Heathrow - San Francisco, London Gatwick - San Francisco or London City - San Francisco as they are the most popular.

Consider American Airlines, Air Canada or Air France when booking your flight. These represent the most popular airlines when flying from London to San Francisco.

Consider Air Canada (85%), Austrian Airlines (85%) or United Airlines (85%) when booking your flight. These represent the most reliable airlines when flying from London to San Francisco.

The cheapest flight price from London to San Francisco is £361. On average you can expect to pay £1,221. The most popular route, (London Heathrow - San Francisco), can usually be booked for £338.

London Heathrow Airport is LHR and San Francisco Airport is SFO. These codes are created by the International Air Transport Association (IATA) and airlines use them to identify the departing and arrival airports in the flight routes they service. While you’re still figuring out your travel plans, it’s not a bad idea to learn the names and codes of other airports around these areas: London Gatwick Airport (LGW), London Stansted Airport (STN), London City Airport (LCY), London Luton Airport (LTN), London Southend Airport (SEN).

If you are looking for flights to San Francisco from London that are eco-friendly, there are a couple of airlines that we can recommend. The recommended airlines are Brussels Airlines, Finnair, Jetblue and Singapore Airlines. If you choose to fly with Brussels Airlines, you will be flying with an airline that trains its pilots only to use one engine during taxiing and limited flaps while landing. This saves a lot of fuel. The fleet of aircraft for long-haul flights has also been replaced with models consuming 3.1% less fuel. Finnair is another great option for sustainable travel. They plan to cut their carbon emissions by 2025 by 50% from 2019’s level. This airline is also working on sustainable catering. Jetblue uses Airbus A320neos which improve fuel economy by 15%. This airline also uses Sharklets, which are wing tip devices that improve aerodynamics and reduce carbon emissions by 4%. Singapore Airlines is another great airline to fly with for eco-friendly travel. This airline is working on sustainable fuel and regularly replaces its planes with newer models that consume less fuel.

There are many great ways to travel more sustainably to San Francisco from London. One of the best ways you can do this is by taking a direct flight. Taking a direct flight uses less fuel than taking a flight route with more than one stopover. If you can, you should also fly in economy class. The economy class takes up less room in the aircraft and therefore can hold more passengers. Another great eco-friendly way to travel is by packing light. The lighter you pack, the less fuel the aircraft will use. Flying with an airline that has sustainable travel methods in place is super beneficial for the planet. If you have the option, try to fly with Brussels Airlines, Finnair, Jetblue or Singapore Airlines.