Question 1

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

Accepted Answer

Flying on Finnair is currently your cheapest option to San Francisco, with prices starting at £379. Additional return tickets that might be worth considering are offered by TAP AIR PORTUGAL and Scandinavian Airlines, with the lowest prices starting at £385 and £389, respectively. Finnair is priced at 25% lower than the current average price of a flight leaving 3 months from now.

Question 2

When is the best time to book a flight from London to San Francisco?

Accepted Answer

Currently, February is the cheapest month in which you can book a flight from London to San Francisco (average of £528). Flying from London to San Francisco in July is currently the most expensive (average of £756). 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.

January

£425

February

£416

March

£446

April

£448

May

£456

June

£552

July

£595

August

£521

September

£465

October

£474

November

£432

December

£450

Question 3

When is the best time to book a flight from London to San Francisco?

Accepted Answer

To ensure you get the cheapest price possible for a flight from London to San Francisco, you should look to book at least 57 days in advance of your intended travel date. The price of your flight may increase if you delay and leave booking until a week or so before departure.

Question 4

When is the cheapest time to fly from London to San Francisco?

Accepted Answer

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

Question 5

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 19/5.

Question 6

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

Accepted Answer

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.

Question 7

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 City - San Francisco or London Gatwick - San Francisco as they are the most popular.

Question 8

What are the cheapest flights from London to San Francisco?

Accepted Answer

The cheapest flight price from London to San Francisco is £414. On average you can expect to pay £1,926. The most popular route, (London Heathrow - San Francisco), can usually be booked for £380.

Question 9

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

Accepted Answer

Consider Air Canada (74%), Austrian Airlines (74%) or United Airlines (74%) when booking your flight. These represent the most reliable airlines when flying from London to San Francisco.

Question 10

Can I find flights from London to San Francisco for under £400 on Cheapflights?

Accepted Answer

Yes, there are multiple flights from London to San Francisco for under £400. The cheapest flight booked recently is on Finnair for just £379, but on average you can expect to pay £394.

Question 11

Are there nonstop flights from London to San Francisco for under £400 on Cheapflights?

Accepted Answer

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 £427.

Question 12

Are there last-minute flights available from London to San Francisco for under £500?

Accepted Answer

There are currently 20+ open flights from London to San Francisco within the next 7 days for less than £500.

Question 13

Where are the most common stopover locations when flying from London to San Francisco?

Accepted Answer

Most of the time, London to San Francisco flights that have stopovers will stop in Dublin. Dublin is followed by New York in terms of the most popular stopover location on flights from London to San Francisco.

Question 14

Where are the least popular stopover locations for London to San Francisco flights?

Accepted Answer

The least popular stopover on flights from London to San Francisco is Copenhagen.

Question 15

What are some popular things to do or see while on a stopover in Dublin?

Accepted Answer

Bord Gáis Energy Theatre, Olympia Theatre, and Royal Dublin Society are currently the most popular points of interest in Dublin at the moment. Bord Gáis Energy Theatre, Olympia Theatre, and Royal Dublin Society can be accessed by travelling approximately 5.7 mi, 5.7 mi, and 6.9 mi, respectively from Dublin. Travellers can book a car hire at Dublin for about £21 per day to make their sightseeing more efficient.

Question 16

What are some popular points of interest to see during a stopover in New York?

Accepted Answer

Times Square, New York City Center, and Empire State Building are the most popular attractions in New York if you're in need of something to do during your stopover. Times Square, New York City Center, and Empire State Building can be accessed by travelling approximately 13.6 mi, 13.6 mi, and 13.2 mi, respectively from New York John F Kennedy Intl. Those looking to explore during their stopover in New York can hire a car from New York John F Kennedy Intl for about £49 per day.

Question 17

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

Accepted Answer

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.

Question 18

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

Accepted Answer

When searching for a good deal, it’s best to be prepared for potential fluctuations in price. We recommend booking at least 58 days in advance, which can save you up to 16% on flights from London to San Francisco compared to booking the week you need them. Waiting 58 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 £491. For sooner than that we have options available in the next 3 days from £546.

Question 19

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 £507. Cheapflights users have found deals in the month of February for as cheap as £324. The most expensive prices can be found in the month of July.

Question 20

When is the cheapest time to fly from London to San Francisco (LON - SFO)?

Accepted Answer

Unlike in the afternoon, when flights are generally more expensive, you can save up to 9% on flights from London to San Francisco by exploring options for tickets at midday.

Question 21

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

Accepted Answer

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 21 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.

Question 22

Accepted Answer

If you’re travelling from London to San Francisco, one of the more common airlines travelling that route is Finnair. Flights from Finnair travelling this route typically cost £692.28 RT. This price is typically 55% more expensive than other airlines that offer London to San Francisco flights. When booking this route, the cheapest RT price found was £469. 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, Finnair flights are 7% more popular than any other airline flying that same route.

Question 23

Accepted Answer

TAP AIR PORTUGAL is one of the most popular airlines used for those travelling from London to San Francisco. London to San Francisco flights are typically 49% cheaper than other airlines traveling the same route. Flights from TAP AIR PORTUGAL typically cost £777.03 RT. The cheapest TAP AIR PORTUGAL flight found for this route was £456. 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, TAP AIR PORTUGAL flights are 4% more popular than any other airline flying that same route.

Question 24

What does LHR to SFO mean?

Accepted Answer

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 Luton Airport (LTN), London City Airport (LCY), London Southend Airport (SEN).

Question 25

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 26

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 27

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 holiday packages that include both flights and hotel.

Question 28

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 29

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 30

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 31

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 32

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

Accepted Answer

Cheapflights goes through 900+ travel sites to look for the best flight deals for flights from London to San Francisco. Too many options? Cheapflights also provides filters for things like airlines, price ranges, and number of stops to help you make a decision easily.

Question 33

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

Accepted Answer

Cheapflights taps into our reliable network of hundreds of airlines and travel agencies to find the best deals for flights from London to San Francisco for you. Better yet — we are completely free to use.

Question 34

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

Accepted Answer

Users can book flights with no change fees policies with our dedicated filters. Book flights from London to San Francisco flexibly with Cheapflights today.

Question 35

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

Accepted Answer

Yes, and it’s super simple to set up. Click the bell icon next to the flight deals above and provide a valid email address to enable Price Alerts. That’s it!

Question 36

What are the most eco-friendly airlines from London to San Francisco?

Accepted Answer

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.

Question 37

How to fly more sustainably from London to San Francisco?

Accepted Answer

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.

Popular in	July
Cheapest in	February
Round-trip from	£416
One-way from	£199

Airline	Cheapest	Average	Flexibility	On-time
Norse Atlantic UK	Cheapest£211	Average£408	FlexibilityNo cancel fee	On-timeN/A	Search Norse Atlantic UK flights
Air France	Cheapest£304	Average£470	FlexibilityNo cancel fee	On-time77%	Search Air France flights
Scandinavian Airlines	Cheapest£323	Average£497	FlexibilityNo cancel fee	On-time77%	Search Scandinavian Airlines flights
TAP AIR PORTUGAL	Cheapest£337	Average£411	FlexibilityNo cancel fee	On-timeN/A	Search TAP AIR PORTUGAL flights
Brussels Airlines	Cheapest£348	Average£458	FlexibilityNo cancel fee	On-timeN/A	Search Brussels Airlines flights
American Airlines	Cheapest£350	Average£479	FlexibilityNo cancel fee	On-time71%	Search American Airlines flights
KLM	Cheapest£359	Average£612	FlexibilityNo cancel fee	On-time75%	Search KLM flights
Air Canada	Cheapest£362	Average£500	FlexibilityNo cancel fee	On-time67%	Search Air Canada flights
Delta	Cheapest£369	Average£545	FlexibilityNo cancel fee	On-timeN/A	Search Delta flights
British Airways	Cheapest£376	Average£467	FlexibilityNo cancel fee	On-time70%	Search British Airways flights

0%of flight departures	Early morningMidnight to 6 am
51%of flight departures	Morning6 am to noon
49%of flight departures	AfternoonNoon to 6 pm
0%of flight departures	Evening6 pm to midnight

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

Cheap flights from London to San Francisco from £199

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 17/9. 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 Wednesday or Tuesday and return on a Thursday

Cheap flight deals from London to San Francisco

Popular in

Cheapest in

Round-trip from

One-way 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?

When is the cheapest time to fly from London to San Francisco (LON - SFO)?

Cheap Finnair flights from London to San Francisco

Check out some of the cheapest Finnair flights we've come across from London to San Francisco. Deals update often to give you more flight options matching your criteria

Cheap TAP AIR PORTUGAL flights from London to San Francisco

Browse through some of the cheapest TAP AIR PORTUGAL flights travelling from London to San Francisco. Check back soon if you're not seeing flights that suit your needs.

Cheap London to San Francisco flights in May & June 2024

Find cheap flight options from London to San Francisco specifically for the months of May and June 2024. Explore affordable fares based on user searches. Over the last 7 days, Cheapflights users made 835,321 searches. Prices were last updated on 19 May 2024.

Check out some of the best flight deals from London to San Francisco in 2024. For more flight deals, be sure to check back very soon.

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 835,321 searches. Data last updated 19 May 2024.

Check out some of the best flight deals from London to San Francisco in 2024. For more flight deals, be sure to check back very soon.

Direct flights to San Francisco from London

For a quicker trip, book one of these direct flights from London to San Francisco. Select from other flights from London to San Francisco by using the search form above.

London to San Francisco flights leaving soon

Check out these flights departing soon from London to San Francisco. Users should examine the flight details to ensure there are no surprises.

One-way flights to San Francisco from London

Some of the best available deals we've found on one-way flights from London to San Francisco. 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

When is the best time to book a flight from London to San Francisco?

Use this chart to determine the optimal time to book a return flight from London to San Francisco. Price data was last updated on 10 May 2024.

To ensure you get the cheapest price possible for a flight from London to San Francisco, you should look to book at least 57 days in advance of your intended travel date. The price of your flight may increase if you delay and leave booking until a week or so before departure.

When is the cheapest time to fly from London to San Francisco?

Use this chart to determine the cheapest time to fly return from London to San Francisco. Price data was last updated on 12 May 2024.

Average price of flights to San Francisco by month

Plan your trip from London to San Francisco by taking into account the cheapest months to travel. The average price of a one-way flight from London to San Francisco is currently £245 while a return flight costs £415. Price data was last updated on 12 May 2024.

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

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 £400 on Cheapflights?

Are there nonstop flights from London to San Francisco for under £400 on Cheapflights?

Are there last-minute flights available from London to San Francisco for under £500?

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 popular airlines that fly 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?

Where are the most common stopover locations when flying from London to San Francisco?

What are some popular things to do or see while on a stopover in Dublin?

What are some popular points of interest to see during a stopover in New York?

Where are the least popular stopover locations for London to San Francisco flights?

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 eco-friendly airlines from London to San Francisco?

How to fly more sustainably 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.

Fly from London to San Francisco on these airlinesChoose from the following airlines for your flight from London to San Francisco. Flights are based on user searches made on Cheapflights and were last updated on 19 May 2024.

Choose from the following airlines for your flight from London to San Francisco. Flights are based on user searches made on Cheapflights and were last updated on 19 May 2024.

Top 10 airlines flying from London to San Francisco

Popular flight searches

Check out other popular destinations found by fellow travellers 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 19 May 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 19 May 2024.

Book a flight to one of these trending destinations

User searches for flights to these destinations increased 20% or more in the past 90 days compared to other destinations

Fly from London to San Francisco on these airlines
Choose from the following airlines for your flight from London to San Francisco. Flights are based on user searches made on Cheapflights and were last updated on 19 May 2024.