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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 October or November, booked 60 days in advance, depart on a Tuesday or Monday and return on a Thursday

SFO - LON
Price
$427 - $854
LON
Temperature
48.2 - 73.4 °F
LON
Rainfall
1.4 - 2.8 inches
Popular in June High demand for flights, 34% potential price rise
Cheapest in October Best time to find cheap flights, 25% potential price drop
Average price $477 Average for round-trip flights in April 2020
Round-trip from $427 From San Francisco to London

Cheap flights from San Francisco to London in April 2020

The best prices found for SFO to LGW flights for April
30 Apr - 6 May
$350pp
SFO
San Francisco
Multiple Airlines
 
1 STOP
LHR
London Heathrow
LHR
London Heathrow
Multiple Airlines
 
1 STOP
SFO
San Francisco
27 Apr - 4 May
$351pp
SFO
San Francisco
Multiple Airlines
 
1 STOP
LHR
London Heathrow
LHR
London Heathrow
Multiple Airlines
 
1 STOP
SFO
San Francisco
28 Apr - 3 May
$372pp
SFO
San Francisco
Multiple Airlines
 
1 STOP
LHR
London Heathrow
LHR
London Heathrow
Multiple Airlines
 
1 STOP
SFO
San Francisco

San Francisco to London 2020 flight deals

Cheap flights to London from San Francisco found for this year
2 Nov - 18 Nov
$291pp
SFO
San Francisco
TAP AIR PORTUGAL
 
1 STOP
LGW
London Gatwick
LGW
London Gatwick
TAP AIR PORTUGAL
 
1 STOP
SFO
San Francisco
17 Oct - 31 Oct
$292pp
SFO
San Francisco
TAP AIR PORTUGAL
 
1 STOP
LHR
London Heathrow
LHR
London Heathrow
TAP AIR PORTUGAL
 
1 STOP
SFO
San Francisco
11 Oct - 22 Oct
$297pp
SFO
San Francisco
TAP AIR PORTUGAL
 
1 STOP
LHR
London Heathrow
LHR
London Heathrow
TAP AIR PORTUGAL
 
1 STOP
SFO
San Francisco

Non-stop flights to London from San Francisco

Save time with San Francisco to London direct flight deals
4 May - 4 Nov
$320pp
SFO
San Francisco
Delta
Non-Stop
LHR
London Heathrow
LHR
London Heathrow
Delta
Non-Stop
SFO
San Francisco
6 May - 13 May
$349pp
SFO
San Francisco
Aer Lingus
Non-Stop
LHR
London Heathrow
LHR
London Heathrow
Aer Lingus
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
14 Apr - 22 Apr
$373pp
SFO
San Francisco
Multiple Airlines
 
1 STOP
LHR
London Heathrow
LHR
London Heathrow
Multiple Airlines
 
1 STOP
SFO
San Francisco
13 Apr - 22 Apr
$374pp
SFO
San Francisco
Multiple Airlines
 
1 STOP
LHR
London Heathrow
LHR
London Heathrow
Multiple Airlines
 
1 STOP
SFO
San Francisco
11 Apr - 15 Apr
$400pp
SFO
San Francisco
British Airways
 
1 STOP
LHR
London Heathrow
LHR
London Heathrow
British Airways
 
1 STOP
SFO
San Francisco

One-way flights to London from San Francisco

The cheapest one-way flights from San Francisco to London
8:15 am - 2:55 am
Brussels Airlines
Nonstop
10h 40m
SFO - LHR
Brussels Airlines
$195
StudentUniverse
3:30 pm - 10:10 am
Austrian Airlines
Nonstop
10h 40m
SFO - LHR
Austrian Airlines
$218
StudentUniverse
3:35 pm - 10:05 am
Aer Lingus
Nonstop
10h 30m
SFO - LHR
Aer Lingus
$262
Fareboom

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 = £0.82
Flight duration
10h 45m
Average temperature for April in London
59.0 °F
Avg rainfall for April in London
1.7 ″

Airports servicing San Francisco

Airports servicing London

Stansted (STN)
City (LCY)
Gatwick (LGW)
Heathrow (LHR)
Luton (LTN)
Weekly flight availability
from San Francisco to London
Sunday
5 daily flights
Monday
5 daily flights
Tuesday
7 daily flights
Wednesday
7 daily flights
Thursday
5 daily flights
Friday
4 daily flights
Saturday
5 daily flights

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.

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

There are no nonstop flights from San Francisco to London, but Cheapflights can provide you with all the information you need to find the fastest route with the fewest stops.

Are there last-minute flights available from San Francisco to London for under $400?

There are currently just 3 open flights from San Francisco to London within the next 7 days for less than $400.

How popular is this flight route?

The San Francisco to London flight path was viewed by 21 users in the past month. Keep an eye out for changes in search interest prior to high and low season.

What percent of flights are delayed?

When booking remember that flights San Francisco to London are typically delayed by 36min. so prepare as needed.

What is the cheapest airline for this route?

When searching, try setting your filters to view flights for British Airways, as currently they have the cheapest options available from San Francisco to London. On average you can find 52 flights for this flight path daily.

How long does the flight from San Francisco to London take?

For nonstop trips expect to fly for about 11 hours. The travel distance is approximately 3,345 miles.

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

16 flight departures from San Francisco to London per day on average.
Afternoon (Noon - 6pm) - 56% of flight departures
Evening (6pm - Midnight) - 44% 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.