Question 1

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

Accepted Answer

Our cheapest airline available from San Francisco to London is TAP AIR PORTUGAL. Our recent data shows that you can find tickets from as low as £393 on this airline. Additional options worth looking into are British Airways and Iberia, starting at £425 and £427 round-trip. TAP AIR PORTUGAL is currently priced 37% below the average price you’ll pay for this route.

Question 2

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

Accepted Answer

The San Francisco to London flight deals you see on this page were last updated on 30/5.

Question 3

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

Accepted Answer

The price you pay for your flight from San Francisco to London may vary depending on when you book. For the best chance of a lower fare, look to book 21 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 San Francisco to London?

Accepted Answer

Currently, January is the cheapest month in which you can book a flight from San Francisco to London (average of £110). Flying from San Francisco to London in June is currently the most expensive (average of £162). 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 San Francisco to London?

Accepted Answer

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

Question 6

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

Accepted Answer

While some choose either San Francisco - London Gatwick or San Francisco - London City, San Francisco - London Heathrow is the most popular route from San Francisco to London.

Question 7

What are the cheapest flights from San Francisco to London?

Accepted Answer

Looking at all options, your cheapest flight can be booked for £330. While the most popular route (San Francisco - London Heathrow) can be booked for £403 on average our data indicates £1,897 when flying from San Francisco to London.

Question 8

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

Accepted Answer

Before booking your flight to London from San Francisco, check out the most reliable airlines to get you to your destination on time: KLM (70%), Air New Zealand (69%), Delta( 68%).

Question 9

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

Accepted Answer

Before booking your flight from San Francisco to London check out the most popular airlines for this route: Air France, British Airways or Delta.

Question 10

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

Accepted Answer

Yes, there are multiple flights from San Francisco to London for under £400. The cheapest flight booked recently is on TAP AIR PORTUGAL for just £393, but on average you can expect to pay £408.

Question 11

Are there nonstop flights from San Francisco to London for under £500 on Cheapflights?

Accepted Answer

Cheapflights has at least 20 direct flights from San Francisco to London under £500. A good price for a nonstop flight from San Francisco to London is less than £465.

Question 12

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

Accepted Answer

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

Question 13

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

Accepted Answer

Monday flights are generally found to be more expensive for flights from San Francisco to London. 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 London.

Question 14

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

Accepted Answer

Find a great deal and save up to 13% by booking at least 22 days prior to your desired departure date, rather than waiting until the week of travel. According to our data, there are a number of flights available from San Francisco to London within the next two weeks, with the cheapest ticket starting at £619.

Question 15

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

Accepted Answer

Flights from San Francisco to London lean towards being more expensive in June. Prices are generally better when you fly from San Francisco to London in October, with the cheapest ticket starting at £315.

Question 16

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

Accepted Answer

When flying from San Francisco to London, the time of day you fly usually plays a role in the price. Save by searching for a flight in the afternoon, which can drop the price by up to 20% versus a flight in the morning.

Question 17

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

Accepted Answer

Located just 11.8 mi from the city center, San Francisco is the airport most travelers will use when flying to London from San Francisco. Booking flights from San Francisco (SFO) to London should be relatively easy as there are 28 daily outbound flights to London from 9 different airlines.

Question 18

Accepted Answer

If you’re travelling from San Francisco to London, one of the more common airlines travelling that route is United Airlines. Flights on this route from United Airlines typically cost £813.20 RT, a price that is 54% cheaper than the average San Francisco to London flight. The cheapest flight found was £702 RT. When travelling from San Francisco to London on United Airlines, the most popular airport to depart from is San Francisco Airport and the most popular airport to arrive at is London Heathrow Airport. When flying from San Francisco to London, United Airlines flights are 10% more popular than any other airline flying that same route.

Question 19

Accepted Answer

Delta is one of the most popular airlines used for those travelling from San Francisco to London. Flights on this route from Delta typically cost £990.52 RT, a price that is 47% cheaper than the average San Francisco to London flight. The cheapest flight found was £630 RT. When travelling from San Francisco to London on Delta, the most popular airport to depart from is San Francisco Airport and the most popular airport to arrive at is London Heathrow Airport. When flying from San Francisco to London, Delta flights are 7% more popular than any other airline flying that same route.

Question 20

What does SFO to LHR mean?

Accepted Answer

These are just IATA (International Air Transport Association) codes. They are used in aviation to identify and differentiate airports. That’s why a San Francisco Airport to London Heathrow Airport flight would often be abbreviated as a SFO to LHR flight. London Gatwick Airport (LGW), London Stansted Airport (STN), London Luton Airport (LTN), London City Airport (LCY), London Southend Airport (SEN) are other airports near this flight route and their unique identifiers/IATA codes.

Question 21

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

Accepted Answer

The amount of baggage you can bring on your San Francisco to London 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 22

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

Accepted Answer

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

Question 23

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

Accepted Answer

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

Question 24

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

Accepted Answer

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

Question 25

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

Accepted Answer

Yes. Cheapflights offers flight deals from San Francisco to London 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 26

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

Accepted Answer

Many airlines flying from San Francisco to London 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 27

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

Accepted Answer

Yes, you can often find last-minute deals on San Francisco to London 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 28

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

Accepted Answer

When you search for this flight from San Francisco to London, Cheapflights searches on 900+ travel sites to save you time finding great flight deals online. Additionally, we offer filter features so you can choose a preferred cabin class or airline, see different price ranges, and much more so you can book the flight for you.

Question 29

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

Accepted Answer

By finding flights from multiple airlines and providers at completely no cost, Cheapflights helps millions of users like you annually find the best flights to London from San Francisco.

Question 30

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

Accepted Answer

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

Question 31

Can Cheapflights notify me if prices for flights from San Francisco to London 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!

Popular in	June
Cheapest in	October
Average price	£675
Round-trip from	£68

Airline	Cheapest	Average	Flexibility	On-time
Lufthansa	Cheapest£439	Average£741	FlexibilityNo cancel fee	On-time76%	Search Lufthansa flights
British Airways	Cheapest£461	Average£652	FlexibilityNo cancel fee	On-time70%	Search British Airways flights
Virgin Atlantic	Cheapest£462	Average£605	FlexibilityNo cancel fee	On-time72%	Search Virgin Atlantic flights
KLM	Cheapest£495	Average£779	FlexibilityNo cancel fee	On-time75%	Search KLM flights
United Airlines	Cheapest£506	Average£762	FlexibilityNo cancel fee	On-time69%	Search United Airlines flights
Iberia	Cheapest£513	Average£668	FlexibilityNo cancel fee	On-time77%	Search Iberia flights
Aer Lingus	Cheapest£520	Average£549	FlexibilityNo cancel fee	On-timeN/A	Search Aer Lingus flights
Air France	Cheapest£524	Average£598	FlexibilityNo cancel fee	On-time77%	Search Air France flights
Delta	Cheapest£552	Average£639	FlexibilityNo cancel fee	On-timeN/A	Search Delta flights

1%of flight departures	Early morningMidnight to 6 am
23%of flight departures	Morning6 am to noon
35%of flight departures	AfternoonNoon to 6 pm
41%of flight departures	Evening6 pm to midnight

Monday	31daily flights
Tuesday	26daily flights
Wednesday	31daily flights
Thursday	26daily flights
Friday	31daily flights
Saturday	31daily flights
Sunday	26daily flights

Cheap flights from San Francisco to London from £126

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 6/6. 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 San Francisco to London are usually found in October or February, booked 21 days in advance, depart on a Thursday or Saturday and return on a Wednesday

Cheap flight deals from San Francisco to London

Popular in

Cheapest in

Average price

Round-trip from

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

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

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

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

Cheap United Airlines flights from San Francisco to London

Consider these cheap United Airlines flights we've found departing from San Francisco to London. Make sure to check back often as deals are often changing.

Cheap Delta flights from San Francisco to London

Have a look at some of the cheapest available Delta flights departing from San Francisco and landing in London. Ensure the flight price, dates, time, and airline match your criteria before you book.

Cheap San Francisco to London flights in May & June 2024

Find cheap flight options from San Francisco to London specifically for the months of May and June 2024. Explore affordable fares based on user searches. Over the last 7 days, Cheapflights users made 908,271 searches. Prices were last updated on 30 May 2024.

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

San Francisco to London 2024 flight deals

Discover exclusive flight deals for travel between San Francisco and London in 2024. Find excellent offers based on user searches. Over the last 7 days, Cheapflights users made 908,271 searches. Data last updated 30 May 2024.

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

Direct flights to London from San Francisco

Take a look at some of the direct flights travelling from San Francisco to London in the near future. If you're looking for other options for flights from San Francisco to London, make sure to update the search form at the top of page.

San Francisco to London flights leaving soon

Consider one of these great deals we found on last-minute flights from San Francisco to London. Users should be sure to double check the price, date, and time of their last-minute flight.

One-way flights to London from San Francisco

Users travelling one-way from San Francisco to London can select one of these great deals. For those needing a return trip from San Francisco, there is a search form available above.

Find flights from San Francisco to London within your budget

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

Use this chart to determine the optimal time to book a return flight from San Francisco to London. Price data was last updated on 24 May 2024.

The price you pay for your flight from San Francisco to London may vary depending on when you book. For the best chance of a lower fare, look to book 21 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 San Francisco to London?

Use this chart to determine the cheapest time to fly return from San Francisco to London. Price data was last updated on 26 May 2024.

Best time to book a flight from San Francisco to London

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

Temperature and rainfall in London by month

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

Reviews of airlines servicing London

Get insights into the airlines that provide service to London. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to London. Reviews last updated 30 May 2024.

Read reviews from past customers who have flown United Airlines, Delta and British Airways from San Francisco to London. Users have also rated airlines 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 San Francisco to London. 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 from for flights from San Francisco to London?

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

Are there nonstop flights from San Francisco to London for under £500 on Cheapflights?

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

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

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

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

What are the cheapest flights from San Francisco to London?

What does SFO to LHR mean?

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

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

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

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

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

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

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

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

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

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

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

See prices for flight routes from nearby airports that may be better suited for you.

Top 9 airlines flying from San Francisco to London

Popular flight searches

Check out other popular destinations found by fellow travellers in 2024

Search flights from San Francisco to London by cabin class

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

Hourly flight availability from San Francisco to London

Find hourly flight availability from San Francisco to London. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated 30 May 2024.

Weekly flight availability from San Francisco to London

Explore weekly flight availability from San Francisco to London. 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 30 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 with Cheapflights

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

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

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