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

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The best prices from San Francisco to London are usually found in February or January, booked 60 days in advance, depart on a Tuesday or Wednesday and return on a Thursday

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

SFO - LON
Price
$411 - $702
LON
Temperature
48.2 - 73.4 °F
LON
Rainfall
1.4 - 2.8 inches

Popular in

December

High demand for flights, 27% potential price rise

Cheapest in

February

Best time to find cheap flights, 19% potential price drop

Round-trip from

$411

From San Francisco to London

One-way from

$263

One-way flight from San Francisco to London

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 San Francisco to London?

Flights from San Francisco to London are found to be more expensive on Friday. 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.

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

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 76% on flights from San Francisco to London 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 $602. For sooner than that we have options available in the next 3 days from $805.

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

Due to multiple factors, expect to potentially pay more when booking in December. For low rates, March can be a great choice for travel to London. Flights to London from San Francisco in March are about $453 on average during March, but can be found for as low as $327.

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

It’s typically best to fly out from San Francisco to London in the evening. Doing so could potentially save you 11% on the flight price compared to flying in the morning, which is usually more expensive.

Cheap flights from San Francisco to London in November, December 2020

The best prices found for SFO to LON flights for November, December
27 Dec - 18 Jan
$531pp
SFO
San Francisco
Multiple Airlines
     
3 STOPS
LHR
London Heathrow
LHR
London Heathrow
Multiple Airlines
   
2 STOPS
SFO
San Francisco
3 Dec - 7 Jan
$534pp
SFO
San Francisco
Multiple Airlines
     
3 STOPS
LHR
London Heathrow
LHR
London Heathrow
Multiple Airlines
   
2 STOPS
SFO
San Francisco
8 Dec - 23 Feb
$536pp
SFO
San Francisco
Multiple Airlines
     
3 STOPS
LHR
London Heathrow
LHR
London Heathrow
Multiple Airlines
   
2 STOPS
SFO
San Francisco

San Francisco to London 2021 flight deals

Cheap flights to London from San Francisco found for next year
27 Dec - 18 Jan
$531pp
SFO
San Francisco
Multiple Airlines
     
3 STOPS
LHR
London Heathrow
LHR
London Heathrow
Multiple Airlines
   
2 STOPS
SFO
San Francisco
3 Dec - 7 Jan
$534pp
SFO
San Francisco
Multiple Airlines
     
3 STOPS
LHR
London Heathrow
LHR
London Heathrow
Multiple Airlines
   
2 STOPS
SFO
San Francisco
8 Dec - 23 Feb
$536pp
SFO
San Francisco
Multiple Airlines
     
3 STOPS
LHR
London Heathrow
LHR
London Heathrow
Multiple Airlines
   
2 STOPS
SFO
San Francisco

Non-stop flights to London from San Francisco

Save time with San Francisco to London direct flight deals
17 May - 25 May
$435pp
SFO
San Francisco
Norwegian
Non-Stop
LGW
London Gatwick
LGW
London Gatwick
Norwegian
Non-Stop
SFO
San Francisco
5 Apr - 2 May
$455pp
SFO
San Francisco
Norwegian
Non-Stop
LGW
London Gatwick
LGW
London Gatwick
Norwegian
Non-Stop
SFO
San Francisco
26 May - 2 Jun
$495pp
SFO
San Francisco
Norwegian
Non-Stop
LGW
London Gatwick
LGW
London Gatwick
Norwegian
Non-Stop
SFO
San Francisco

Last minute flights from San Francisco to London

Late deals on round-trip flights to London from San Francisco, departing today and this week
3 Dec - 7 Jan
$534pp
SFO
San Francisco
Multiple Airlines
     
3 STOPS
LHR
London Heathrow
LHR
London Heathrow
Multiple Airlines
   
2 STOPS
SFO
San Francisco
8 Dec - 23 Feb
$536pp
SFO
San Francisco
Multiple Airlines
     
3 STOPS
LHR
London Heathrow
LHR
London Heathrow
Multiple Airlines
   
2 STOPS
SFO
San Francisco
6 Dec - 25 Dec
$545pp
SFO
San Francisco
Multiple Airlines
     
3 STOPS
LHR
London Heathrow
LHR
London Heathrow
Multiple Airlines
   
2 STOPS
SFO
San Francisco

One-way flights to London from San Francisco

The cheapest one-way flights from San Francisco to London
11:10 am - 5:35 am
Iberia
Nonstop
10h 25m
SFO - LHR
Iberia
$263
Flights by SU
3:35 am - 7:40 am
Multiple Airlines
2 Stops
20h 05m
SFO - LHR
Multiple Airlines
$266
FlyFar
2:25 am - 12:30 pm
Multiple Airlines
2 Stops
26h 05m
SFO - LHR
Multiple Airlines
$272
FlyFar

Related info for your journey

Useful info, stats and facts about San Francisco to London flights.

Flight FAQs

From San Francisco to London

Are flight prices decreasing from San Francisco to London due to COVID-19 (coronavirus)?

At this time, Cheapflights has noticed price decreases for many domestic flights due to COVID-19. Travel is not necessarily recommended at this time, and flights may be prone to cancellation: please check with local authorities in both San Francisco and London for travel alerts, and be sure to review the airline's cancellation policy and travel advisories before booking. For more information, please view our post on what to know about COVID-19 (coronavirus) and travel.

What safety measures are being taken by airlines flying from San Francisco to London to control the spread of COVID-19?

New policies can now be found on Delta to help keep travelers safe while flying. New policies for travelers booking flights from San Francisco to London include masks being provided and required on board, daily cleaning and sanitization, use of HEPA filters, pre-flight testing for antibodies and symptoms, and socially distanced seating (for a limited time). Keep in mind that policies will vary by airline.

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

Some of the carriers operating flights from San Francisco to London that may be offering flexible cancellation policies are United Airlines, Virgin Atlantic, and British Airways. Our site will let you filter for all airlines offering greater flexibility due to COVID-19.

Can I find flights from San Francisco to London for under $500 on Cheapflights?

Yes, there are multiple flights from San Francisco to London for under $500. The cheapest flight booked recently is on Multiple Airlines for just $406, but on average you can expect to pay $451.

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

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 $538.

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

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

What days are nonstop flights available from San Francisco to London?

Days when nonstop flights are available for this flight are: Wednesday.

How many flights depart from San Francisco to London on average per day?

1 flight departure from San Francisco to London per day on average.
Afternoon (Noon - 6pm) - 100% of flight departures

Is San Francisco weather warmer or cooler than London?

You can imagine temperatures to be in the 77 °F range in September. The weather in London is generally colder than San Francisco's. As flight availability is subject to become more limited as peak season approaches it is ideal to book in a timely manner.

How long is the flight from San Francisco to London?

A quick flight from San Francisco to London can take about 10h 25m. Iberia provides one of the quickest options available for as low as $513. Airlines will cover a distance of 5383 mi. Most flights are nonstop.

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

Our cheapest airline available from San Francisco to London is Norwegian. Our recent data shows that you can find tickets from as low as $435 on this airline. An additional option worth looking into is TAP AIR PORTUGAL, starting at $449. Users have found that Norwegian is 14% cheaper than the other options available to this destination.

What are the cheapest airlines to fly from San Francisco to London one-way?

The cheapest airline for a one-way flight from San Francisco to London is Iberia ($263).

Alternative routes for San Francisco to London

Destination information for London

Things to know before you go. Useful info for your trip from San Francisco to London
Today's exchange rate
$1 = £0.75
Flight duration
10h 42m
Average temperature for November in London
53.6 °F
Avg rainfall for November in London
2.5 ″

Airports servicing San Francisco

Airports servicing London

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

Top 10 airlines from San Francisco to London

The chart below displays the airlines Cheapflights users traveling from San Francisco to London 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
$223 $447 No change fee N/A
SWISS
$411 $575 No change fee 79%
Brussels Airlines
$327 $596 No change fee N/A
Finnair
$347 $601 No change fee 76%
Air Canada
$374 $680 No cancel fee 67%
Norwegian
$364 $759 No cancel fee 74%
Austrian Airlines
$379 $792 No change fee 78%
WestJet
$467 $819 No cancel fee 60%
Aer Lingus
$586 $936 No change fee N/A
Icelandair
$353 $936 No cancel fee 76%

Hourly flight availability from San Francisco to London

Afternoon Noon to 6 PM 100% of SFO to LON departures
Early morning Midnight to 6 AM 0% of SFO to LON departures
Morning 6 AM to noon 0% of SFO to LON departures
Evening 6 PM to midnight 0% of SFO to LON departures
Midnight
6 AM
Noon
6 PM
Weekly flight availability
from San Francisco to London
Sunday
7 daily flights
Monday
7 daily flights
Tuesday
2 daily flights
Wednesday
0 flights
Thursday
0 flights
Friday
7 daily flights
Saturday
7 daily flights
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