Flights from London to San Francisco Starting at £255

We've found these cheap flights for you. You can book one-way or return flight tickets.

  • Round-trip
  • One way

Crossed out prices are calculated based on the average price of the corresponding route on Trip.com.

Find the best time to fly from London to San Francisco

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  • 23 30
  • Apr

    30 6
  • 6 13
  • 13 20
  • 20 27
  • May

    27 4
  • 4 11
  • 11 18
  • 18 25
  • Jun

    25 1
  • 1 8
  • 8 15
Displayed prices are calculated based on the cheapest average weekly prices of the corresponding route on Trip.com.

Airlines Flying from London to San Francisco

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FAQ

  • When are flight tickets from London (LON) to San Francisco (SFO) the cheapest?

    Airlines adjust prices for flights from London to San Francisco based on the date and time of your booking. By analyzing data from all airlines, on Trip.com, you can find the cheapest flight prices on Tuesdays, Wednesdays, and Saturdays.
  • How much are flights from London (LON) to San Francisco (SFO) cost?

    According to Trip.com's data, the lowest price is around £972.
  • How long is the flight from London (LON) to San Francisco (SFO)?

    It takes about 11 hours 3 minutes to fly from London (LON) to San Francisco (SFO).
  • What is the transportation method from the main airport to downtown in San Francisco?

    • The distance from San Francisco International Airport to downtown is about 17km, by taxi about 30 minutes.
  • What are the most popular airlines that fly from London (LON) to San Francisco (SFO)?

  • What's the most popular airline for direct flights from London (LON) to San Francisco (SFO)?

    Austrian Airlines operates 18 direct flights from London (LON) to San Francisco (SFO).
  • How many airports in San Francisco (SFO)?

    There are 1 airport(s) in San Francisco (SFO): San Francisco International Airport.

How to find a cheap flight from London to San Francisco

Wait until the last minute and flight costs are often sky-high. Plan ahead, book the right way, and your savings can soar. We have loads of saving tips to help you find a cheap flight from London to San Francisco. Book your flights at the right time and save more.
1
Be flexible with your travel dates to get the cheapest flight from London to San Francisco.
Simply tap "Date" on the flight search bar to browse through the calendar and check out airfare from London to San Francisco over the next 6 months in 2025. If you're planning to fly within the next three months, it looks like the most affordable option is on Tue, Mar 25, with one-way flights priced at just £604.
2
Compare cheap flight deals from London to San Francisco across hundreds of airlines.
With our extensive search, you can compare prices from over 500 airlines to find the cheapest flight tickets from London to San Francisco. The cheapest airline for this route is British Airways.
3
Set up a Price Alert
By setting up a Price Alert for your journey from London to San Francisco, you can easily keep an eye on ticket prices without having to check every day.
4
Don't miss out on cheap flight deals and promo codes from London to San Francisco.
You can always find the latest offers through Trip.com Deals and Promo Codes for cheap flights. By signing up for a free membership, you'll get access to even more deals for your flights.
5
Book early or wait until the last minute.
It's usually best to book early. Flight tickets are often cheapest when they're first released, typically about a year before the departure date. So, have a look online as soon as the flights you're interested in become available. If you miss the cheapest time, you might still find some good deals as the departure date gets closer.
6
Search for flights on the go.
For the best travel flight booking experience, download the Trip.com app. You can search for cheap flights from London to San Francisco and snag some exclusive deals just for you.

Flight Information from London to San Francisco

Cheapest one-way flight price £255
Cheapest return ticket price £398
Off-season travel month May
Peak season for travel December
Flight distance 8,628.48km
Average flight time 11 hours 3 minutes
Popular airline British Airways

Flight from London to San Francisco

San Francisco is the commercial and cultural centre of Northern Carolina located at the north end of the San Francisco Peninsula. This centrepiece of the San Francisco Bay area is one of the most populous regions that attracts tourists for its eclectic mix of historic landmarks, Victorian architecture, educational institutions, hilly terrain, vibrant art scene, ethnic diversity, innovative industries and outdoor recreation facilities that make it one of the most visited and desirable cities globally.

Tip: The best time to visit San Francisco is between September and November as the weather is pleasant. Summer marks the peak of tourism for its festivities.

Getting to San Francisco

San Francisco International Airport is the seventh busiest airport in USA and is located near San Bruno and Millbrae in unincorporated San Mateo County. It is the largest airport in the Bay area that serves San Francisco and is a major getaway to Europe and Asia. Travelling from London to San Francisco is easy as there are a number of London to San Francisco flights per day, which take about eleven hours and fifteen minutes to reach San Francisco. Norwegian Air, Virgin Atlantic, United Airlines, etc. are some of the others that offer direct flights to San Francisco. Connecting flights can take as long as 44 hours, depending on the waiting duration or stopover destination.

Tip: Book your flight tickets for your travel in advance to avail the best rates and on-going discounts.

What To See

San Francisco lies sandwiched between San Francisco Bay and Pacific Ocean. From the windswept Bay, often foggy hilly terrain, crowded streets of Chinatown, to the delicious cuisines, you could devote a lifetime exploring the treasures of San Francisco. Each neighbourhood of this city carries its own unique culture that would interest its travellers.

Golden Gate encompasses fashionable neighbourhoods replete with historical landmarks and iconic views like the Fort Mason, Golden Gate Bridge, and the Presidio. Take a ferry ride to Alcatraz island or dig into the seafood delicacies that are available at the touristy waterfront of Fisherman’s Wharf.

If you’re a movie buff, then a visit to the Madame Tussauds Museum is a must to get up-close with the famous sports stars, Hollywood A-listers, and musicians. The vast science complex of California Academy of Science is both educational and entertaining for the entire family with its all-digital planetarium, an aquarium, and natural history museum.  Embark on a boat tour from the Golden Gate Bridge to the Bay Bridge to capture the commanding views of the San Francisco skyline.

San Francisco’s Golden Gate Park plays host to a plethora of activities throughout the year.Relax at this picturesque space that has lakes, picnic areas, gardens. Partying or shopping at the Union Square of San Francisco should figure at the top of your travel itinerary. This one-stop destination has an active nightlife, retail outlets, cafeterias, and art galleries that would enthrall its visitors.

Get a taste of the authentic Chinese food at the restaurants of China Town in San Francisco. Participate in the Chinese Autumn Moon Festival in Grant Avenue to witness the traditional Chinese practices.

Tip: Don't forget to pack your travel camera, a light raincoat, a waterproof sun hat, binoculars, portable phone chargers during your sightseeing trips.

Making a London-San Francisco flight booking online and you’re sure to find some cheap flights from London on Trip.com. Check the best deals on flights and discounts on hotel booking to reduce your travel budget. Visit San Francisco with Trip.com to cherish the best memories of a fun-filled vacation.