Find Cheap Flights from San Francisco to London (SFO - LON)

Flights overview

Useful information for finding cheap flights from San Francisco to London and booking your next trip

Cheapest round-trip flights	$829	SWISS 1 stop 29 hr Sun, May 3 — Tue, May 19	The cheapest round-trip flight from San Francisco to London is currently $829
Cheapest one-way flight	$429	LOT 1 stop 28 hr Wed, May 6	The cheapest one-way flight from San Francisco to London is currently $429
Cheapest nonstop flights	$881	Virgin Atlantic Nonstop 11 hr Sun, May 3 — Tue, May 19	The cheapest nonstop round-trip flight from San Francisco to London is currently $881
Last-minute weekend getaway	$856	Delta, Virgin Atlantic 1 stop 17 hr Fri, May 8 — Sun, May 10	The cheapest last-minute weekend getaway from San Francisco to London is currently $856
Cheapest business class flights	$4,215	JetBlue, Icelandair 2 stops 23 hr Thu, Jul 30 — Wed, Aug 12	The cheapest business class round-trip flight from San Francisco to London is currently $4,215

Fastest flight	10 hr 15 min	The fastest nonstop flight from San Francisco to London takes 10 hr 15 min
Nonstop flights	Every day	There are direct flights on this route every day.

When is the cheapest time to fly?

The cheapest month to fly from San Francisco to London is typically August. The most expensive month to fly is typically June.

August Cheapest	Typical prices: $500–640
June Most expensive	Typical prices: $850–1,300

Popular airlines from San Francisco to London

United

Nonstop

from $852

Typical price: $610–1,350

21 weekly nonstop flights

SFO - LHR Every day

48 weekly connecting flights

SFO - LHR Every day
Virgin Atlantic

Nonstop

from $853

Typical price: $620–1,300

14 weekly nonstop flights

SFO - LHR Every day
British Airways

Nonstop

from $886

Typical price: $630–1,500

14 weekly nonstop flights

SFO - LHR Every day
Turkish Airlines

from $936

Typical price: $800–1,900

72 weekly connecting flights

SFO - LGW, LHR, STN Every day
KLM

from $853

Typical price: $630–1,400

32 weekly connecting flights

SFO - LCY, LHR Every day
SWISS

from $877

Typical price: $640–1,450

31 weekly connecting flights

SFO - LCY, LGW, LHR Every Mon, Wed, Thu, Fri, Sat, Sun

Popular airports near San Francisco

San Francisco International Airport (SFO)

San Francisco United States 19 min 11 mi
Oakland San Francisco Bay Airport (OAK)

Oakland United States 27 min 11 mi
Sacramento International Airport (SMF)

Sacramento United States 1 hr 34 min 78 mi
San Jose Mineta International Airport (SJC)

San Jose United States 51 min 39 mi

Popular airports near London

Heathrow Airport (LHR)

London United Kingdom 46 min 14 mi
London Stansted Airport (STN)

London United Kingdom 1 hr 4 min 30 mi
London Gatwick Airport (LGW)

London United Kingdom 1 hr 24 min 25 mi
London Luton Airport (LTN)

London United Kingdom 1 hr 7 min 27 mi

Frequently asked questions about flying from San Francisco to London

The cheapest flights from San Francisco to London are usually in August. Typical ticket prices in August range from $500 to $640.

The cheapest round-trip flight from San Francisco to London recently found on Google Flights was with SWISS from $829. The cheapest one-way flight was with LOT from $429.

Some of the cheapest round-trip deals we found with different airlines:

The cheapest United flight from San Francisco to London is $852, flying from May 3 to May 19.
The cheapest Virgin Atlantic flight from San Francisco to London is $853, flying from May 3 to May 19.
The cheapest British Airways flight from San Francisco to London is $886, flying from May 3 to May 19.
The cheapest Turkish Airlines flight from San Francisco to London is $936, flying from May 7 to May 20.
The cheapest KLM flight from San Francisco to London is $853, flying from May 3 to May 19.
The cheapest SWISS flight from San Francisco to London is $877, flying from May 7 to May 21.

The cheapest round-trip flight from San Francisco to London starts at $829 from Sun, May 3 to Tue, May 19. The cheapest one-way flight starts at $429 and departs on Wed, May 6.

10 hr 15 min is the shortest flight time from San Francisco to London.

London is a year-round destination, getting busiest Jun–Sep and in the run-up to Christmas and New Year (Dec). Jul–Aug is when many Europeans take holidays, so visitors may face more crowds and limited availability of hotel rooms. Key events include the London Marathon (Apr), Notting Hill Carnival (Aug) and Frieze London art fair (Oct). Sep–May is the city's primary season for theatre, opera, ballet and classical music. Summer’s warmer weather brings many free outdoor music and theatre festivals.

It's easy to use Google Flights to find the cheapest days to fly from San Francisco to London.
Just click the Departure label near the top of the page to open the calendar. Choose a start date and a return date to see how the round-trip fare changes on those specific days.
Adjust the trip type to see one-way fares. The cheapest available flights are highlighted and easy to spot. Once you settle on dates, click the Search button to see flight options and book the deal.

You can also turn on price tracking to get alerts if the price changes for a route or flight.

What counts as the best airline for your flights from San Francisco to London really depends on your individual needs. You may have a favorite carrier or a loyalty program you like, but price, convenience, and airports served also come into play. Flexibility and booking terms – Can you change flights if you want to stay longer or get a refund if you have to postpone your trip? – are also factors that help determine which airline is best to fly from San Francisco to London.

In terms of nonstop flights, United is the most popular. United offers 21 nonstop flights and 48 connecting flights per week. United flies from San Francisco International Airport (SFO) to Heathrow Airport (LHR) .

In terms of flights, Turkish Airlines is the most popular. Turkish Airlines offers 72 connecting flights per week. Turkish Airlines flies from San Francisco International Airport (SFO) to London Gatwick Airport (LGW) , Heathrow Airport (LHR) , London Stansted Airport (STN) .

Other popular airlines flying from San Francisco to London are:

Virgin Atlantic offers 14 nonstop flights per week. Virgin Atlantic flies from San Francisco International Airport (SFO) to Heathrow Airport (LHR) .
British Airways offers 14 nonstop flights per week. British Airways flies from San Francisco International Airport (SFO) to Heathrow Airport (LHR) .
KLM offers 32 connecting flights per week. KLM flies from San Francisco International Airport (SFO) to London City Airport (LCY) , Heathrow Airport (LHR) .
SWISS offers 31 connecting flights per week. SWISS flies from San Francisco International Airport (SFO) to London City Airport (LCY) , London Gatwick Airport (LGW) , Heathrow Airport (LHR) .

The number of connecting flights refers to distinct flights with at least one stop between San Francisco and London.

The cheapest round-trip flight from San Francisco to London recently found on Google Flights was with SWISS from $829. The cheapest one-way flight was with LOT from $429.

Some of the cheapest round-trip deals we found with different airlines:

The cheapest United flight from San Francisco to London is $852, flying from May 3 to May 19.
The cheapest Virgin Atlantic flight from San Francisco to London is $853, flying from May 3 to May 19.
The cheapest British Airways flight from San Francisco to London is $886, flying from May 3 to May 19.
The cheapest Turkish Airlines flight from San Francisco to London is $936, flying from May 7 to May 20.
The cheapest KLM flight from San Francisco to London is $853, flying from May 3 to May 19.
The cheapest SWISS flight from San Francisco to London is $877, flying from May 7 to May 21.

United, British Airways and Virgin Atlantic fly direct from San Francisco to London.

There are 21 United direct flights from San Francisco to London per week. Flights are available every day.
There are 14 Virgin Atlantic direct flights from San Francisco to London per week. Flights are available every day.
There are 14 British Airways direct flights from San Francisco to London per week. Flights are available every day.

Use the Stops filter while searching for flights, to see only nonstop options in your results.

The cheapest last-minute deal between San Francisco and London at price $856 is offered by Delta, Virgin Atlantic from Fri, May 8 to Sun, May 10.

United, British Airways and Virgin Atlantic fly direct from San Francisco to London.

There are 21 United direct flights from San Francisco to London per week. Flights are available every day.
There are 14 Virgin Atlantic direct flights from San Francisco to London per week. Flights are available every day.
There are 14 British Airways direct flights from San Francisco to London per week. Flights are available every day.

Use the Stops filter while searching for flights, to see only nonstop options in your results.

There are direct flights from San Francisco to London on a daily basis.

The cheapest direct (nonstop) round-trip flights between San Francisco and London start at $881 from Sun, May 3 to Tue, May 19 with Virgin Atlantic.

It's easy to find nonstop flights with Google Flights! Once you've searched for flights from San Francisco to London, just select the nonstop flights only option in the 'Stops’ filter in the search form and view all available direct flights and their prices.

The cheapest business class round-trip flights between San Francisco and London start at $4,215 from Thu, Jul 30 to Wed, Aug 12 with JetBlue, Icelandair.

The cheapest economy class round-trip flights between San Francisco and London start at $829 from Sun, May 3 to Tue, May 19.

To book business class trips from San Francisco to London, look for the default Economy selection at the top, and change it to your desired cabin class such as Premium Economy, Business Class, or First Class. You can then select your departure and arrival dates, consider available options, and book your business travel.

You can also adjust the trip type to view one-way fares.

The best last-minute getaway deal for the next weekend between San Francisco and London starts at $856 from Fri, May 8 to Sun, May 10 with Delta, Virgin Atlantic.

The cheapest last-minute deal between San Francisco and London at price $856 is offered by Delta, Virgin Atlantic from Fri, May 8 to Sun, May 10.

To find last-minute flight deals from San Francisco to London, start by entering the city names, select the desired departure and return dates, and hit the Search button to view flight options.

You can check for last-minute flights for the same day or adjust the trip type to see one-way fares.