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

SFO — LON
Feb 7 — Feb 141

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

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

All the information you need to plan the best SFO to LON flight in 2023: compare San Francisco to London flight prices with the expected peak season, weather and rainfall in London.

SFO - LON

Price

$621 - $1,124

LON

Temperature

39.2 - 62.6 °F

LON

Rainfall

1.6 - 2.8 inches

Popular inJulyHigh demand for flights, 28% potential price rise
Cheapest inFebruaryBest time to find cheap flights, 23% potential price drop
Round-trip from$621From San Francisco to London (LON)
One-way from$190One-way flight from San Francisco to London (LON)

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

Leaving on a Sunday is a viable option for saving on travel. Heavily demanded days of the week can typically drive up the prices you see. Booking your travel for a less competitive day can save up to 14% on the overall cost on flights from San Francisco to London.

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

Find a great deal and save up to 11% by booking at least 56 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 $949.

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

February is one of the best times of the year to fly to London from San Francisco. Prices for February average $812 per person but you can even find prices for as low as $529. The most expensive prices can be found in the month of July. Opting for a February flight can save you 38% on your journey compared to booking in July

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

One of the essential ways to save on airfare from San Francisco to London is to remain as flexible as possible. Flights that are at noon tend to be the most expensive. A flight in the afternoon could potentially save you up to 12% on airfare.

Cheap flights from San Francisco to London in February, March 2023

The best prices found for SFO to LON flights for February, March
Mar 20 - Apr 19
SFO

San Francisco

LHR

London Heathrow

1 stop

16h 50m
LHR

London Heathrow

SFO

San Francisco

1 stop

16h 35m
$484

TAP AIR PORTUGAL

Pick Dates

Deal found 1/31

Mar 20 - Apr 19
SFO

San Francisco

LHR

London Heathrow

1 stop

16h 50m
LHR

London Heathrow

SFO

San Francisco

1 stop

16h 35m
$488

TAP AIR PORTUGAL

Pick Dates

Deal found 1/31

Feb 27 - Mar 6
SFO

San Francisco

LHR

London Heathrow

1 stop

20h 55m
LHR

London Heathrow

SFO

San Francisco

1 stop

16h 55m
$512

TAP AIR PORTUGAL

Pick Dates

Deal found 1/31

San Francisco to London 2023 flight deals

Cheap flights to London from San Francisco found for this year
Oct 1 - Oct 23
SFO

San Francisco

LHR

London Heathrow

1 stop

21h 40m
LHR

London Heathrow

SFO

San Francisco

1 stop

32h 50m
$307

TAP AIR PORTUGAL

Pick Dates

Deal found 2/1

Oct 18 - Nov 1
SFO

San Francisco

LHR

London Heathrow

1 stop

15h 15m
LHR

London Heathrow

SFO

San Francisco

1 stop

28h 25m
$480

TAP AIR PORTUGAL

Pick Dates

Deal found 1/30

Mar 20 - Apr 19
SFO

San Francisco

LHR

London Heathrow

1 stop

16h 50m
LHR

London Heathrow

SFO

San Francisco

1 stop

16h 35m
$484

TAP AIR PORTUGAL

Pick Dates

Deal found 1/31

Cheap TAP AIR PORTUGAL flights from San Francisco to London

Mar 20 - Apr 19
SFO

San Francisco

LHR

London Heathrow

1 stop

16h 50m
LHR

London Heathrow

SFO

San Francisco

1 stop

16h 35m
$484

TAP AIR PORTUGAL

Pick Dates

Deal found 1/31

Mar 20 - Apr 19
SFO

San Francisco

LHR

London Heathrow

1 stop

16h 50m
LHR

London Heathrow

SFO

San Francisco

1 stop

16h 35m
$488

TAP AIR PORTUGAL

Pick Dates

Deal found 1/31

Feb 27 - Mar 6
SFO

San Francisco

LHR

London Heathrow

1 stop

20h 55m
LHR

London Heathrow

SFO

San Francisco

1 stop

16h 55m
$512

TAP AIR PORTUGAL

Pick Dates

Deal found 1/31

  • One of the most popular airlines traveling from San Francisco to London is TAP AIR PORTUGAL. Flights from TAP AIR PORTUGAL traveling this route typically cost $952.68 RT. This price is typically 51% more expensive than other airlines that offer San Francisco to London flights. When booking this route, the cheapest RT price found was $656. The most popular departure airport in San Francisco when flying to London is San Francisco Airport. The most popular airport to fly into when visiting London is London Heathrow Airport. When flying from San Francisco to London, TAP AIR PORTUGAL flights are 9% more popular than any other airline flying that same route.

Cheap Scandinavian Airlines flights from San Francisco to London

Feb 20 - Feb 27
SFO

San Francisco

LHR

London Heathrow

1 stop

15h 10m
LHR

London Heathrow

SFO

San Francisco

1 stop

16h 35m
$520

Scandinavian Airlines

Pick Dates

Deal found 1/30

Apr 19 - Apr 25
SFO

San Francisco

LHR

London Heathrow

1 stop

15h 05m
LHR

London Heathrow

SFO

San Francisco

1 stop

19h 50m
$524

Scandinavian Airlines

Pick Dates

Deal found 1/31

Apr 21 - Apr 24
SFO

San Francisco

LHR

London Heathrow

2 stops

28h 55m
LHR

London Heathrow

SFO

San Francisco

1 stop

19h 50m
$551

Scandinavian Airlines

Pick Dates

Deal found 1/30

  • If you’re traveling from San Francisco to London, one of the more common airlines traveling that route is Scandinavian Airlines. Flights from Scandinavian Airlines traveling this route typically cost $1,840.18 RT. This price is typically 28% more expensive than other airlines that offer San Francisco to London flights. When booking this route, the cheapest RT price found was $491. When traveling from San Francisco to London on Scandinavian 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, Scandinavian Airlines flights are 5% more popular than any other airline flying that same route.

Non-stop flights to London from San Francisco

Save time with San Francisco to London direct flight deals
Mar 1 - Mar 8
SFO

San Francisco

LHR

London Heathrow

Nonstop

10h 30m
LHR

London Heathrow

SFO

San Francisco

Nonstop

11h 15m
$618

Finnair

Pick Dates

Deal found 1/30

Mar 1 - Mar 8
SFO

San Francisco

LHR

London Heathrow

Nonstop

10h 30m
LHR

London Heathrow

SFO

San Francisco

Nonstop

11h 15m
$619

Finnair

Pick Dates

Deal found 2/1

Mar 9 - Mar 20
SFO

San Francisco

LHR

London Heathrow

Nonstop

10h 25m
LHR

London Heathrow

SFO

San Francisco

Nonstop

11h 15m
$623

British Airways

Pick Dates

Deal found 2/1

Last minute flights from San Francisco to London

Late deals on return flights to London from San Francisco, departing today and this week
Feb 9 - Feb 13
SFO

San Francisco

LHR

London Heathrow

1 stop

17h 20m
LHR

London Heathrow

SFO

San Francisco

1 stop

16h 35m
$520

Scandinavian Airlines

Pick Dates

Deal found 1/31

Feb 7 - Feb 14
SFO

San Francisco

LGW

London Gatwick

1 stop

12h 45m
LGW

London Gatwick

SFO

San Francisco

1 stop

15h 05m
$563

Aer Lingus

Pick Dates

Deal found 1/31

Feb 7 - Feb 13
SFO

San Francisco

LGW

London Gatwick

1 stop

12h 45m
LGW

London Gatwick

SFO

San Francisco

1 stop

15h 05m
$568

Aer Lingus

Pick Dates

Deal found 2/2

One-way flights to London from San Francisco

The cheapest one-way flights from San Francisco to London
Mar 20
SFO

San Francisco

LHR

London Heathrow

1 stop

20h 55m
$190

TAP AIR PORTUGAL

Pick Dates

Deal found 1/31

Mar 26
SFO

San Francisco

LHR

London Heathrow

1 stop

17h 25m
$191

TAP AIR PORTUGAL

Pick Dates

Deal found 1/30

Mar 13
SFO

San Francisco

LGW

London Gatwick

1 stop

15h 05m
$195

TAP AIR PORTUGAL

Pick Dates

Deal found 1/31

Reviews of Airlines Servicing London

Air France
7.7
Good
117 reviews

Food

7.0

Boarding

7.5

Comfort

7.6

Crew

8.5

Overall

7.7

Entertainment

7.1

Reviews

1 / 10

My flight got delayed as soon as we landed , were stuck in the airplane for more than 1 hour and a half And i missed my connection because of this And had to stay in paris for 12 hours to get a flight

Air France
7.7
Good
117 reviews
Air France
7.7
Good
117 reviews

Food

7.0

Boarding

7.5

Comfort

7.6

Crew

8.5

Overall

7.7

Entertainment

7.1

Reviews

1 / 10

My flight got delayed as soon as we landed , were stuck in the airplane for more than 1 hour and a half And i missed my connection because of this And had to stay in paris for 12 hours to get a flight

SWISS
7.7
Good
317 reviews
Air France
7.7
Good
117 reviews

Food

7.0

Boarding

7.5

Comfort

7.6

Crew

8.5

Overall

7.7

Entertainment

7.1

Reviews

1 / 10

My flight got delayed as soon as we landed , were stuck in the airplane for more than 1 hour and a half And i missed my connection because of this And had to stay in paris for 12 hours to get a flight

American Airlines
7.4
Good
1,668 reviews
Air France
7.7
Good
117 reviews

Food

7.0

Boarding

7.5

Comfort

7.6

Crew

8.5

Overall

7.7

Entertainment

7.1

Reviews

1 / 10

My flight got delayed as soon as we landed , were stuck in the airplane for more than 1 hour and a half And i missed my connection because of this And had to stay in paris for 12 hours to get a flight

WestJet
7.0
Good
479 reviews
Air France
7.7
Good
117 reviews

Food

7.0

Boarding

7.5

Comfort

7.6

Crew

8.5

Overall

7.7

Entertainment

7.1

Reviews

1 / 10

My flight got delayed as soon as we landed , were stuck in the airplane for more than 1 hour and a half And i missed my connection because of this And had to stay in paris for 12 hours to get a flight

Scandinavian Airlines
6.9
Okay
103 reviews
Air France
7.7
Good
117 reviews

Food

7.0

Boarding

7.5

Comfort

7.6

Crew

8.5

Overall

7.7

Entertainment

7.1

Reviews

1 / 10

My flight got delayed as soon as we landed , were stuck in the airplane for more than 1 hour and a half And i missed my connection because of this And had to stay in paris for 12 hours to get a flight

Related info for your journey

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

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

Most people fly from San Francisco (SFO) if they book a flight from San Francisco to London. On average, San Francisco has 24 outbound flights to London per day from 27 airlines. San Francisco is conveniently located just 11.8 mi from San Francisco’s city center.

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, British Airways, and Lufthansa. 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 TAP AIR PORTUGAL for just $484, but on average you can expect to pay $527.

Are there nonstop flights from San Francisco to London for under $700 on Cheapflights?

Cheapflights has at least 20 direct flights from San Francisco to London under $700. A good price for a nonstop flight from San Francisco to London is less than $642.

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

Currently priced at $484, TAP AIR PORTUGAL will fly you from San Francisco to London and back. In addition to TAP AIR PORTUGAL, many other airlines offer competitively priced options for your trip. Search Cheapflights for deals from Scandinavian Airlines and Aer Lingus - these airlines can fly you to your destination from $520 and $555, respectively. You may be able to fly from San Francisco to London for 40% less than the average price by searching for these airlines.

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

The most popular route from San Francisco to London is San Francisco - London Heathrow. You may also consider San Francisco - London Gatwick or San Francisco - London City.

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

Before booking your flight from San Francisco to London check out the most popular airlines for this route: Undisclosed Carrier, American Airlines or Air Canada.

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

Looking for the most reliable airlines to get you to your destination on time? Our data shows these are most likely to get you from San Francisco to London on time: KLM (85%), Air France (85%), Delta (85%).

What are the cheapest flights from San Francisco to London?

On average you can expect to pay $2,891 for a flight from San Francisco to London. The cheapest flight overall is $453 while the most popular route, (San Francisco - London Heathrow) is currently priced at $520.

Alternative routes for San Francisco to London

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

Top 10 airlines flying 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.
AirlineCheapestAverageFlexibilityOn-timeCOVID-19 safety
Juneyao AirlinesCheapest$10Average$20FlexibilityNo cancel feeOn-time66%COVID-19 safety
Search Juneyao Airlines flights
TAP AIR PORTUGALCheapest$352Average$546FlexibilityNo cancel feeOn-timeN/ACOVID-19 safety
Search TAP AIR PORTUGAL flights
Norwegian Air UKCheapest$364Average$694FlexibilityNo cancel feeOn-timeN/ACOVID-19 safety
Search Norwegian Air UK flights
NorwegianCheapest$364Average$759FlexibilityNo cancel feeOn-time74%COVID-19 safety
Search Norwegian flights
Singapore AirlinesCheapest$491Average$1,840FlexibilityNo cancel feeOn-time81%COVID-19 safety
Search Singapore Airlines flights
WestJetCheapest$535Average$938FlexibilityNo cancel feeOn-time60%COVID-19 safety
Search WestJet flights
IberiaCheapest$539Average$811FlexibilityNo cancel feeOn-time77%COVID-19 safety
Search Iberia flights
FinnairCheapest$567Average$779FlexibilityNo cancel feeOn-time76%COVID-19 safety
Search Finnair flights
Aer LingusCheapest$573Average$770FlexibilityNo cancel feeOn-timeN/ACOVID-19 safety
Search Aer Lingus flights
Alaska AirlinesCheapest$617Average$882FlexibilityNo cancel feeOn-time75%COVID-19 safety
Search Alaska Airlines flights

Hourly flight availability from San Francisco to London

See what time of day planes typically take off from San Francisco to London
1%of flight departuresEarly morningMidnight to 6 am
0%of flight departuresMorning6 am to noon
55%of flight departuresAfternoonNoon to 6 pm
44%of flight departuresEvening6 pm to midnight
Midnight
6 AM
Noon
6 PM

Weekly flight availability from San Francisco to London

See how many times per day planes take to the skies headed from San Francisco to London
Sunday26daily flights
Monday21daily flights
Tuesday21daily flights
Wednesday26daily flights
Thursday26daily flights
Friday26daily flights
Saturday26daily flights
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