Menu

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

Know your dates, get live prices in seconds:

From
To
Depart
Return
Any month
Compare vs. Cheapflights |
From
To
Depart
Depart
Time
Anytime
From
To
Depart
Depart
Time
Anytime
From
To
Depart
Depart
Time
Anytime
From
To
Depart
Depart
Time
Anytime
From
To
Depart
Depart
Time
Anytime
From
To
Depart
Depart
Time
Anytime

We work with more than 300 partners to bring you better travel deals

The best prices from San Francisco International to London are usually found in October or November, 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 International (SFO) to London (LGW)

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
Round-trip from $427 From San Francisco International to London
One-way from $237 One-way flight from San Francisco International to London
Flight route prices based on searches on Cheapflights within the last 3 days, monthly prices based on aggregated historical data.

Cheap flights from San Francisco International to London in June, July 2020

The best prices found for SFO to LGW flights for June, July
19 Jun - 22 Sep
$457pp
SFO
San Francisco
Multiple Airlines
   
2 STOPS
LGW
London Gatwick
LGW
London Gatwick
Norwegian
Non-Stop
SFO
San Francisco
15 Jun - 15 Sep
$464pp
SFO
San Francisco
Multiple Airlines
   
2 STOPS
LGW
London Gatwick
LGW
London Gatwick
Norwegian
Non-Stop
SFO
San Francisco
15 Jun - 21 Sep
$478pp
SFO
San Francisco
Multiple Airlines
   
2 STOPS
LGW
London Gatwick
LGW
London Gatwick
Norwegian
Non-Stop
SFO
San Francisco

San Francisco International to London 2020 flight deals

Cheap flights to London from San Francisco International found for this year
2 Nov - 18 Nov
$292pp
SFO
San Francisco
TAP AIR PORTUGAL
 
1 STOP
LHR
London Heathrow
LHR
London Heathrow
TAP AIR PORTUGAL
 
1 STOP
SFO
San Francisco
2 Nov - 18 Nov
$292pp
SFO
San Francisco
TAP AIR PORTUGAL
 
1 STOP
LGW
London Gatwick
LGW
London Gatwick
TAP AIR PORTUGAL
 
1 STOP
SFO
San Francisco
26 Oct - 6 Nov
$295pp
SFO
San Francisco
TAP AIR PORTUGAL
   
2 STOPS
LGW
London Gatwick
LGW
London Gatwick
TAP AIR PORTUGAL
 
1 STOP
SFO
San Francisco

Non-stop flights to London from San Francisco International

Save time with San Francisco International to London direct flight deals
15 Nov - 22 Nov
$399pp
SFO
San Francisco
Norwegian Air UK
Non-Stop
LGW
London Gatwick
LGW
London Gatwick
Norwegian Air UK
Non-Stop
SFO
San Francisco
17 Sep - 10 Nov
$422pp
SFO
San Francisco
Norwegian Air UK
Non-Stop
LGW
London Gatwick
LGW
London Gatwick
Norwegian Air UK
Non-Stop
SFO
San Francisco
11 Sep - 23 Sep
$430pp
SFO
San Francisco
Norwegian Air UK
Non-Stop
LGW
London Gatwick
LGW
London Gatwick
Norwegian Air UK
Non-Stop
SFO
San Francisco

Last minute flights from San Francisco International to London

Late deals on round-trip flights to London from San Francisco International, departing today and this week
25 May - 2 Jul
$769pp
SFO
San Francisco
Multiple Airlines
 
1 STOP
LHR
London Heathrow
LHR
London Heathrow
Iberia
 
1 STOP
SFO
San Francisco
25 May - 30 Jun
$775pp
SFO
San Francisco
British Airways
 
1 STOP
LHR
London Heathrow
LHR
London Heathrow
British Airways
Non-Stop
SFO
San Francisco
27 May - 12 Jun
$781pp
SFO
San Francisco
British Airways
 
1 STOP
LHR
London Heathrow
LHR
London Heathrow
British Airways
Non-Stop
SFO
San Francisco

One-way flights to London from San Francisco International

The cheapest one-way flights from San Francisco International to London
12:30 pm - 1:45 pm
TAP AIR PORTUGAL
1 Stop
17h 15m
SFO - LHR
TAP AIR PORTUGAL
$237
Travelgenio
11:50 am - 6:30 am
Major Airline
1 Stop
34h 40m
SFO - LGW
Major Airline
$257
Flyus
8:43 am - 8:40 am
Multiple Airlines
1 Stop
15h 57m
SFO - LGW
Multiple Airlines
$299
FlightNetwork

Related info for your journey

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

Flight FAQs

From San Francisco International 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.

Can I find flights from San Francisco International to London for under $300 on Cheapflights?

Yes, there are multiple flights from San Francisco International to London for under $300. The cheapest flight booked recently is on TAP AIR PORTUGAL for just $292, but on average you can expect to pay $309.

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

Cheapflights has at least 6 direct flights from San Francisco International to London under $400. A good price for a nonstop flight from San Francisco International to London is less than $508.

Are there last-minute flights available from San Francisco International to London for under $800?

There are currently 7+ open flights from San Francisco International to London within the next 7 days for less than $800.

How popular is this flight route?

The San Francisco to London flight path was viewed by 28 users in the past month. Keep an eye out for changes in search interest prior to high and low season.

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.

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.

Alternative routes for San Francisco International to London

Destination information for London

Things to know before you go. Useful info for your trip from San Francisco International to London
Today's exchange rate
$1 = £0.80
Average temperature for June in London
69.8 °F
Avg rainfall for June in London
1.7 ″

Airports servicing San Francisco

Airports servicing London

Heathrow (LHR)
Luton (LTN)
Stansted (STN)
City (LCY)
Southend (SEN)