Cheap flights from London to San Francisco

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London (LON)
San Francisco (SFO)
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The best prices from London to San Francisco are usually found in February or March, booked 60 days in advance, depart on a Wednesday or Tuesday and return on a Monday

How to find the cheapest flight from
London (LON) to San Francisco (SFO)

All the information you need to plan the best LON to SFO flight in 2022: compare London to San Francisco flight prices with the expected peak season, weather and rainfall in San Francisco.
LON - SFO
Price
£526 - £719
SFO
Temperature
11 - 17 °C
SFO
Rainfall
0 - 112 mm

Popular in

December

High demand for flights, 14% potential price rise

Cheapest in

February

Best time to find cheap flights, 15% potential price drop

Round-trip from

£429

From London (LON) to San Francisco

One-way from

£215

One-way flight from London (LON) to San Francisco

Flight route prices based on searches on Cheapflights within the last 3 days, monthly prices based on aggregated historical data.
What is the cheapest day to fly round-trip from London to San Francisco?

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

Unlike in the afternoon, when flights are generally more expensive, you can save up to 7% on flights from London to San Francisco by exploring options for tickets in the morning.

How far in advance should I book a flight from London 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 61 days in advance, which can save you up to 27% on flights from London to San Francisco compared to booking the week you need them. Waiting 61 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 £583. For sooner than that we have options available in the next 3 days from £656.

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

February can be a great time to fly to San Francisco from London with a flight ticket averaging about £503. Cheapflights users have found deals in the month of February for as cheap as £333. The most expensive prices can be found in the month of December.

Cheap flights from London to San Francisco in June, July 2022

The best prices found for LON to SFO flights in June, July
6 Jul - 12 Jul
£485pp
LHR
London Heathrow
Multiple airlines
 
1 STOP
SFO
San Francisco
SFO
San Francisco
Multiple Airlines
 
1 STOP
LHR
London Heathrow
6 Jul - 12 Jul
£487pp
LHR
London Heathrow
Multiple airlines
 
1 STOP
SFO
San Francisco
SFO
San Francisco
Virgin Atlantic
Direct
LHR
London Heathrow
10 Jul - 19 Jul
£537pp
LHR
London Heathrow
Multiple airlines
 
1 STOP
SFO
San Francisco
SFO
San Francisco
British Airways
Direct
LHR
London Heathrow

London to San Francisco 2022 flight deals

Cheap flights to San Francisco from London found for this year
2 Nov - 12 Nov
£332pp
LGW
London Gatwick
TAP AIR PORTUGAL
 
1 STOP
SFO
San Francisco
SFO
San Francisco
TAP AIR PORTUGAL
 
1 STOP
LGW
London Gatwick
2 Nov - 1 Dec
£344pp
LGW
London Gatwick
TAP AIR PORTUGAL
 
1 STOP
SFO
San Francisco
SFO
San Francisco
TAP AIR PORTUGAL
 
1 STOP
LGW
London Gatwick
2 Nov - 26 Nov
£348pp
LGW
London Gatwick
TAP AIR PORTUGAL
 
1 STOP
SFO
San Francisco
SFO
San Francisco
TAP AIR PORTUGAL
 
1 STOP
LGW
London Gatwick

Direct flights to San Francisco from London

Save time with London to San Francisco direct flight deals
19 Oct - 26 Oct
£407pp
LHR
London Heathrow
British Airways
Direct
SFO
San Francisco
SFO
San Francisco
British Airways
Direct
LHR
London Heathrow
31 Oct - 10 Nov
£410pp
LHR
London Heathrow
Virgin Atlantic
Direct
SFO
San Francisco
SFO
San Francisco
Virgin Atlantic
Direct
LHR
London Heathrow
2 Nov - 9 Nov
£411pp
LHR
London Heathrow
Virgin Atlantic
Direct
SFO
San Francisco
SFO
San Francisco
Virgin Atlantic
Direct
LHR
London Heathrow

Last-minute flights from London to San Francisco

Late deals on return flights to San Francisco from London, departing today and this week
28 Jun - 14 Jul
£553pp
LHR
London Heathrow
Virgin Atlantic
 
1 STOP
SFO
San Francisco
SFO
San Francisco
Virgin Atlantic
 
1 STOP
LHR
London Heathrow
28 Jun - 14 Jul
£555pp
LHR
London Heathrow
Virgin Atlantic
 
1 STOP
SFO
San Francisco
SFO
San Francisco
Virgin Atlantic
Direct
LHR
London Heathrow
29 Jun - 6 Jul
£598pp
LHR
London Heathrow
Multiple airlines
 
1 STOP
SFO
San Francisco
SFO
San Francisco
Air France
Direct
LHR
London Heathrow

One-way flights to San Francisco from London

The cheapest one-way flights from London to San Francisco
17:45 - 14:10
Multiple Airlines
1 stop
28h 25m
LGW - SFO
Multiple Airlines
£215
Vueling Global
16:35 - 14:10
Multiple Airlines
1 stop
29h 35m
STN - SFO
Multiple Airlines
£217
Kiwi.com
17:45 - 14:10
Vueling
1 stop
28h 25m
LGW - SFO
Vueling
£221
Kiwi.com

Related info for your journey

Useful info, stats and facts about <span class="emphasized">London</span> to <span class="emphasized">San Francisco</span> flights.

Flight FAQs

From London to San Francisco

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

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 41 inbound flights from London per day. You should also have plenty of airline options to choose from since 22 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.

Which airlines flying from London to San Francisco have flexible cancellations due to COVID-19?

Some of our airline partners flying from London to San Francisco have new flexible policies in place due to COVID-19. Virgin Atlantic, Lufthansa, and British Airways are some of the carriers where you may find flexible cancellation policies. You can use our site to filter for airlines like Virgin Atlantic with this kind of flexibility.

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

Yes, there are multiple flights from London to San Francisco for under £400. The cheapest flight booked recently is on TAP AIR PORTUGAL for just £326, but on average you can expect to pay £362.

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

Cheapflights has at least 20 direct flights from London to San Francisco under £500. A good price for a nonstop flight from London to San Francisco is less than £421.

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

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

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

Flying on TAP AIR PORTUGAL is currently your cheapest option to San Francisco, with prices starting at £326. Additional round-trip tickets that might be worth considering are offered by Major Airline and JetBlue, with the lowest prices starting at £365 and £380, respectively. TAP AIR PORTUGAL is priced at 35% lower than the current average price of a flight leaving 3 months from now.

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

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.

What are the cheapest flights from London to San Francisco?

The cheapest flight price from London to San Francisco is £341. On average you can expect to pay £2,966. The most popular route, (London Heathrow - San Francisco), can usually be booked for £383.

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

Consider Aeromexico (87%), Austrian Airlines (86%) or SWISS (86%) when booking your flight. These represent the most reliable airlines when flying from London to San Francisco.

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

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.

COVID Restrictions

View COVID Travel Restrictions for San Francisco, CA

Do I need a COVID test to fly to San Francisco from London?

Information is based on travel restrictions from London to San Francisco

Most visitors from London need to provide a negative COVID-19 test result and/or quarantine to enter San Francisco.

COVID-19 testing requirements
Visitors from London are not required to present a negative COVID-19 PCR test or antigen result upon entering San Francisco.

Quarantine requirements
Visitors from London are not required to quarantine after entering San Francisco.

Do I need a test to fly back to London from San Francisco?

Returning to London from San Francisco

COVID-19 testing requirements
Visitors from San Francisco are not required to present a negative COVID-19 PCR test or antigen result upon entering London.

Quarantine requirements
Visitors from San Francisco are not required to quarantine after entering London.

Hide COVID Travel Restrictions for San Francisco, CA

Alternative routes for London to San Francisco

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

Destination information for San Francisco

Things to know before you go - useful duration and weather info for your trip from London to San Francisco.
Today's exchange rate
£1 = $1.23
Flight duration from London to SFO
10h 47m
Average temperature for June in San Francisco
23.0 °C
Avg rainfall for June in San Francisco
1.0 mm

Airports servicing London

Gatwick (LGW)
Stansted (STN)
London City (LCY)
Luton (LTN)
Southend (SEN)

Airports servicing San Francisco

Top 10 airlines flying from London to San Francisco

The chart below displays the airlines Cheapflights users travelling from London to San Francisco choose most often. Cheapest and average prices are based on aggregated data from the past 12 months.
Airline Cheapest Average Flexibility On-time COVID-19 safety
TAP AIR PORTUGAL
£212 £341 No cancel fee N/A
Search TAP AIR PORTUGAL flights
Norwegian
£289 £430 No cancel fee 74%
Search Norwegian flights
United Airlines
£290 £499 No cancel fee 69%
Search United Airlines flights
Norwegian Air UK
£292 £524 No cancel fee N/A
Search Norwegian Air UK flights
Delta
£323 £547 No cancel fee N/A
Search Delta flights
Lufthansa
£326 £525 No cancel fee 76%
Search Lufthansa flights
Finnair
£363 £504 No cancel fee 76%
Search Finnair flights
Virgin Atlantic
£366 £537 No cancel fee 72%
Search Virgin Atlantic flights
Iberia
£373 £484 No cancel fee 77%
Search Iberia flights
KLM
£376 £532 No cancel fee 75%
Search KLM flights

Hourly flight availability from London to San Francisco

See what time of day planes typically take off from London towards San Francisco.
Morning 6 AM to midday 51% of LON to US-SFO departures
Afternoon Midday to 6 PM 48% of LON to US-SFO departures
Early morning Midnight to 6 AM 1% of LON to US-SFO departures
Evening 6 PM to midnight 0% of LON to US-SFO departures
Midnight
6 AM
Noon
6 PM
Weekly flight availability
from London to San Francisco
See how many times per day planes take to the skies headed from London to San Francisco.
Sunday
38 daily flights
Monday
43 daily flights
Tuesday
43 daily flights
Wednesday
38 daily flights
Thursday
43 daily flights
Friday
43 daily flights
Saturday
43 daily flights
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