Question 1

What are the cheapest airlines flying from London to San Francisco round-trip?

Accepted Answer

British Airways, at $306, was found to be the cheapest airline from London to San Francisco.Alternate airlines to your destination round-trip include Air Canada and TAP AIR PORTUGAL. You may be able to fly from London to San Francisco for 52% less than the average price by searching for these airlines.

Question 2

How recently were the London to San Francisco flight deals updated?

Accepted Answer

The London to San Francisco flight deals you see on this page were last updated on 6/5.

Question 3

How far ahead should I book a flight from London to San Francisco?

Accepted Answer

The price you pay for your flight from London to San Francisco may vary depending on when you book. For the best chance of a lower fare, look to book 57 days in advance of your trip. Fares are likely to increase a fortnight or so before your departure date.

Question 4

What is the cheapest month to book a flight from London to San Francisco?

Accepted Answer

Currently, September is the cheapest month in which you can book a flight from London to San Francisco (average of $268). Flying from London to San Francisco in June is currently the most expensive (average of $385). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

Question 5

What is the cheapest day to fly from London to San Francisco?

Accepted Answer

Travelers seeking maximum savings on their London to San Francisco flight should consider departing on Sunday afternoons when fares are most often at their lowest. Sunday evenings flights should be avoided if possible as fares are typically the most expensive at this time.

Question 6

E

Accepted Answer

In terms of precipitation, rainfall in San Francisco ranges from 0.0 - 4.4 inches per month. January is typically the wettest month, when rainfall can reach 4.4 in. July is typically the driest time to visit San Francisco when rainfall is around 0.0 in.

Question 7

E

Accepted Answer

If weather is an important factor for your trip to San Francisco, use this chart to help with planning. For those seeking warmer temperatures, September is the ideal time of year to visit, when temperatures reach an average of 62.6 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 51.8 F).

Question 8

What are the most popular routes from London to San Francisco?

Accepted Answer

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.

Question 9

What are the cheapest flights from London to San Francisco?

Accepted Answer

While on average a flight from London to San Francisco is generally $2,412, our data shows the cheapest flight currently is $526. When looking at the most popular route, (London Heathrow - San Francisco), you can expect to pay $276 for that flight.

Question 10

What are the most reliable airlines from London to San Francisco?

Accepted Answer

No one likes to see their flight delayed. When booking a flight from London to San Francisco consider choosing Air Canada (74%), Austrian Airlines (74%) or United Airlines (74%) as they are the most reliable in getting you off to your destination on time.

Question 11

What are the most popular airlines that fly from London to San Francisco?

Accepted Answer

Consider American Airlines, Finnair or British Airways when booking your flight. These represent the most popular airlines when flying from London to San Francisco.

Question 12

Can I find flights from London to San Francisco for under $300 on Cheapflights?

Accepted Answer

Yes, there are multiple flights from London to San Francisco for under $300. The cheapest flight booked recently is on Multiple Airlines for just $276, but on average you can expect to pay $448.

Question 13

Are there nonstop flights from London to San Francisco for under $300 on Cheapflights?

Accepted Answer

Cheapflights has at least 20 direct flights from London to San Francisco under $300. A good price for a nonstop flight from London to San Francisco is less than $491.

Question 14

Are there last-minute flights available from London to San Francisco for under $600?

Accepted Answer

There are currently 20+ open flights from London to San Francisco within the next 7 days for less than $600.

Question 15

What is the cheapest day to fly round-trip from London to San Francisco?

Accepted Answer

Saturday flights are found to be more expensive to fly 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.

Question 16

How far in advance should I book a flight from London to San Francisco?

Accepted Answer

To save on the cost of your flight from London to San Francisco, book at least 58 days before your planned departure. Booking around this time can save you about 14% on the cost of this flight compared to booking a flight leaving this week. We have found prices from $641 if you need a flight within two weeks. For flights within the next 72 hours, you can find tickets from as low as $693.

Question 17

What is the cheapest month to fly from London to San Francisco?

Accepted Answer

February can be a great time to fly to San Francisco from London with a flight ticket averaging about $643. Cheapflights users have found deals in the month of February for as cheap as $414. The most expensive prices can be found in the month of July.

Question 18

What is the cheapest time of day to fly from LON to SFO?

Accepted Answer

It’s optimal to fly from London to San Francisco in the morning. By choosing this option you can save up to 12% on the cost of your flight, compared to a flight in the evening.

Question 19

What airport do you fly into for flights to San Francisco from London?

Accepted Answer

Located just 11.8 mi from the city center, San Francisco is the airport most travelers will use when flying to San Francisco from London. Booking flights from London to San Francisco (SFO) should be relatively easy as there are 31 daily inbound flights from London from 12 different airlines.

Question 20

Accepted Answer

British Airways is one of the most popular airlines used for those traveling from London to San Francisco. Flights on this route from British Airways typically cost $719.50 RT, a price that is 43% more expensive than the average London to San Francisco flight. The cheapest flight found was $538 RT. The most popular departure airport in London when flying to San Francisco is London Heathrow Airport. The most popular airport to fly into when visiting San Francisco is San Francisco Airport. When flying from London to San Francisco, British Airways flights are 8% more popular than any other airline flying that same route.

Question 21

Accepted Answer

One of the most popular airlines traveling from London to San Francisco is Delta. Flights from Delta traveling this route typically cost $570.97 RT. This price is typically 93% cheaper than other airlines that offer London to San Francisco flights. When booking this route, the cheapest RT price found was $416. London Heathrow Airport is the most common London airport to take off from when flying to San Francisco. San Francisco Airport is the most popular arrival airport in San Francisco. When flying from London to San Francisco, Delta flights are 4% more popular than any other airline flying that same route.

Question 22

What does LHR to SFO mean?

Accepted Answer

Great question - LHR to SFO just means London Heathrow Airport to San Francisco Airport. Now you’ll know what these unique codes when you look for flights! London Gatwick Airport (LGW), London Stansted Airport (STN), London Luton Airport (LTN), London City Airport (LCY), London Southend Airport (SEN) are some additional IATA codes for airports related to your trip.

Question 23

Can I find deals for flights from London to San Francisco that include extra baggage allowance?

Accepted Answer

The amount of baggage you can bring on your London to San Francisco flight depends on the airline and the type of fare you've chosen. After entering your flight details, you'll be able to view the specific baggage policies for each deal in the search results. Keep in mind that certain deals may offer additional baggage allowance.

Question 24

Can I find deals on flights from London to San Francisco with specific airlines?

Accepted Answer

Yes, Cheapflights allows you to browse and filter London to San Francisco flight deals by airline. After entering your origin and destination, use the available filters to view flights offered by airlines.

Question 25

Can I find deals for flights from London to San Francisco that include hotel bookings?

Accepted Answer

Yes. In addition to deals on London to San Francisco flights, Cheapflights offers vacation packages that include both flights and hotel.

Question 26

How can I find direct flights from London to San Francisco?

Accepted Answer

After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from London to San Francisco.

Question 27

Can I find deals for business class flights from London to San Francisco?

Accepted Answer

Yes. Cheapflights offers flight deals from London to San Francisco by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

Question 28

Can I find deals for flights from London to San Francisco that allow pets onboard?

Accepted Answer

Many airlines flying from London to San Francisco offer the option to travel with pets. After selecting a flight deal, you can find more information about the airline's pet policy on their official website or by contacting the airline directly. Please note that additional fees and restrictions may apply.

Question 29

Can I find deals on last-minute flights from London to San Francisco?

Accepted Answer

Yes, you can often find last-minute deals on London to San Francisco flights on Cheapflights. However, these deals can vary and may not always be available. We recommend checking back frequently or signing up for price alerts for the most up-to-date deals.

Question 30

How does Cheapflights help users find flights from London to San Francisco?

Accepted Answer

Cheapflights makes it easy to find London to San Francisco flights by helping our users search from 900+ travel sites for deals. We also provide you with filters for cabin, price, airline, airports, number of stops, and many more to narrow down that perfect flight.

Question 31

Why should you use Cheapflights to find cheap flight tickets from London to San Francisco?

Accepted Answer

Cheapflights simply makes it quick and affordable to book flights from London to San Francisco by bringing together all flight options from hundreds of airlines and agencies online — and put it in one place for you to choose from. Plus, Cheapflights is 100% free to use for all.

Question 32

Can Cheapflights find flights from London to San Francisco with no change fees?

Accepted Answer

Cheapflights does show flights with no change fees to all users. To see these options for flights from London to San Francisco, users can toggle the no change fees filter when performing a flight search.

Question 33

Can Cheapflights notify me if prices for flights from London to San Francisco become cheaper?

Accepted Answer

Of course! You can now track prices for flights from London to San Francisco and get an alert from Cheapflights when they change. Have a valid email address ready and click the bell icon next to the flight deals above to set up your price alerts.

Popular in	July
Cheapest in	February
Average price	$694
Round-trip from	$268

Airline	Cheapest	Average	Flexibility	On-time
Finnair	Cheapest$416	Average$571	FlexibilityNo cancel fee	On-time76%
Scandinavian Airlines	Cheapest$422	Average$601	FlexibilityNo cancel fee	On-time77%
Lufthansa	Cheapest$492	Average$612	FlexibilityNo cancel fee	On-time76%
Iberia	Cheapest$507	Average$729	FlexibilityNo cancel fee	On-time77%
British Airways	Cheapest$519	Average$651	FlexibilityNo cancel fee	On-time70%
Virgin Atlantic	Cheapest$538	Average$740	FlexibilityNo cancel fee	On-time72%
Delta	Cheapest$538	Average$720	FlexibilityNo cancel fee	On-timeN/A
United Airlines	Cheapest$539	Average$675	FlexibilityNo cancel fee	On-time69%
Aer Lingus	Cheapest$551	Average$684	FlexibilityNo cancel fee	On-timeN/A
Brussels Airlines	Cheapest$572	Average$659	FlexibilityNo cancel fee	On-timeN/A

1%of flight departures	Early morningMidnight to 6 am
51%of flight departures	Morning6 am to noon
48%of flight departures	AfternoonNoon to 6 pm
0%of flight departures	Evening6 pm to midnight

Sunday	31daily flights
Monday	31daily flights
Tuesday	31daily flights
Wednesday	31daily flights
Thursday	31daily flights
Friday	31daily flights
Saturday	31daily flights

Cheap flights from London (LON) to San Francisco (SFO) from $276

This is the cheapest round-trip flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 9/17. Fares are subject to change and may not be available on all flights or dates of travel. Click the price to replicate the search for this deal.

The best prices from London to San Francisco are usually found in February or November, booked 57 days in advance, depart on a Tuesday or Thursday and return on a Tuesday

Cheap flight deals from London to San Francisco

Popular in

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Average price

Round-trip from

What is the cheapest day to fly round-trip from London to San Francisco?

How far in advance should I book a flight from London to San Francisco?

What is the cheapest month to fly from London to San Francisco?

What is the cheapest time of day to fly from LON to SFO?

Cheap London to San Francisco flights in June & July 2024

Find cheap flight options from London to San Francisco specifically for the months of June and July 2024. Explore affordable fares based on user searches. Over the last 7 days, Cheapflights users made 3,050,429 searches. Prices were last updated on June 5, 2024.

These are some of the best deals we've found on flights to San Francisco in 2024 at this time. If these deals don't appeal to you, be sure to come back soon for more options.

London to San Francisco 2024 flight deals

Discover exclusive flight deals for travel between London and San Francisco in 2024. Find excellent offers based on user searches. Over the last 7 days, Cheapflights users made 3,050,429 searches. Data last updated June 5, 2024.

These are some of the best deals we've found on flights to San Francisco in 2024 at this time. If these deals don't appeal to you, be sure to come back soon for more options.

London to San Francisco flights leaving soon

Consider one of these great deals we found on last-minute flights from London to San Francisco. To prevent any unwanted surprises, users should verify their flight info before booking.

One-way flights to San Francisco from London

Users in need of a one-way flight from London to San Francisco can choose from these deals. Users in need of a round-trip flight from London to San Francisco instead should update the search form at the top of page.

Find flights from London to San Francisco within your budget

How far ahead should I book a flight from London to San Francisco?

Use this chart to determine the optimal time to book a round-trip flight from London to San Francisco. Price data was last updated on May 31, 2024.

The price you pay for your flight from London to San Francisco may vary depending on when you book. For the best chance of a lower fare, look to book 57 days in advance of your trip. Fares are likely to increase a fortnight or so before your departure date.

What is the cheapest day to fly from London to San Francisco?

Use this chart to determine the cheapest time to fly round-trip from London to San Francisco. Price data was last updated on June 2, 2024.

Best time to book a flight from London to San Francisco

Have a flexible travel schedule? Discover the best time to fly to San Francisco from London with our price prediction graph.

Temperature and rainfall in San Francisco by month

Plan your trip to San Francisco by taking into account the average temperature and rainfall totals by month.

Reviews of airlines servicing San Francisco

See what other customers who have flown with British Airways, Delta and Vueling from London to San Francisco have to say. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.

Related info for your journey

Find useful and relevant information for your journey from London to San Francisco. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

What airport do you fly into for flights to San Francisco from London?

Can I find flights from London to San Francisco for under $300 on Cheapflights?

Are there nonstop flights from London to San Francisco for under $300 on Cheapflights?

Are there last-minute flights available from London to San Francisco for under $600?

What are the cheapest airlines flying from London to San Francisco round-trip?

What are the most popular routes from London to San Francisco?

What are the most reliable airlines from London to San Francisco?

What are the cheapest flights from London to San Francisco?

What does LHR to SFO mean?

Can I find deals for flights from London to San Francisco that include extra baggage allowance?

Can I find deals on flights from London to San Francisco with specific airlines?

Can I find deals for flights from London to San Francisco that include hotel bookings?

How can I find direct flights from London to San Francisco?

Can I find deals for business class flights from London to San Francisco?

Can I find deals for flights from London to San Francisco that allow pets onboard?

Can I find deals on last-minute flights from London to San Francisco?

How recently were the London to San Francisco flight deals updated?

What are the most popular airlines that fly from London to San Francisco?

What is the cheapest month to book a flight from London to San Francisco?

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

Alternative routes for London to San FranciscoSee prices for flight routes from nearby airports that may be better suited for you.

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Top 10 airlines flying from London to San Francisco

Popular flight searches

Check out other popular destinations found by fellow travelers in 2024

Search flights from London to San Francisco by cabin class

Find flights from London to San Francisco, based on your preferred cabin class, be it economy, premium economy, business, or first class.

Hourly flight availability from London to San Francisco

Find hourly flight availability from London to San Francisco. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated June 5, 2024.

Weekly flight availability from London to San Francisco

Explore weekly flight availability from London to San Francisco. Discover flights operating on different days of the week, giving you the flexibility to choose a travel day that best fits your plans. Compare info to find the most convenient option for your journey. Data last updated June 5, 2024.

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Find the best flight deals on Cheapflights, where travelers can enjoy low prices and a wide availability of flights to their desired destinations.

How does Cheapflights help users find flights from London to San Francisco?

Why should you use Cheapflights to find cheap flight tickets from London to San Francisco?

Can Cheapflights find flights from London to San Francisco with no change fees?

Can Cheapflights notify me if prices for flights from London to San Francisco become cheaper?

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Alternative routes for London to San Francisco
See prices for flight routes from nearby airports that may be better suited for you.