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	$497	Tap Air Portugal 1 stop 30 hr Thu, Apr 30 — Wed, May 13	The cheapest round-trip flight from San Francisco to London is currently $497
Cheapest one-way flight	$285	LEVEL, Vueling 1 stop 33 hr Thu, Apr 16	The cheapest one-way flight from San Francisco to London is currently $285
Cheapest nonstop flights	$648	British Airways Nonstop 11 hr Thu, Feb 26 — Wed, Mar 11	The cheapest nonstop round-trip flight from San Francisco to London is currently $648
Last-minute weekend getaway	$646	SWISS 1 stop 15 hr Fri, Feb 6 — Mon, Feb 9	The cheapest last-minute weekend getaway from San Francisco to London is currently $646
Cheapest business class flights	$2,973	Alaska, Icelandair 2 stops 16 hr Fri, Apr 17 — Thu, Apr 30	The cheapest business class round-trip flight from San Francisco to London is currently $2,973

Fastest flight	10 hr 10 min	The fastest nonstop flight from San Francisco to London takes 10 hr 10 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: $840–1,100

Popular airlines from San Francisco to London

United

Nonstop

from $619

Typical price: $610–1,250

13 weekly nonstop flights

SFO - LHR Every day

63 weekly connecting flights

SFO - LHR Every day
British Airways

Nonstop

from $648

Typical price: $630–1,400

11 weekly nonstop flights

SFO - LHR Every day
Virgin Atlantic

Nonstop

from $620

Typical price: $620–1,200

7 weekly nonstop flights

SFO - LHR Every day
SWISS

from $618

Typical price: $640–1,350

50 weekly connecting flights

SFO - LCY, LGW, LHR Every day
Turkish Airlines

from $754

Typical price: $810–1,950

42 weekly connecting flights

SFO - LGW, LHR Every day
KLM

from $620

Typical price: $630–1,350

22 weekly connecting flights

SFO - LCY, LHR Every Tue, Wed, Thu, Fri, Sat, Sun

Popular airports near San Francisco

San Francisco International Airport (SFO)

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

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

Sacramento United States 1 hr 33 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 48 min 14 mi
London Gatwick Airport (LGW)

London United Kingdom 1 hr 26 min 25 mi
London Stansted Airport (STN)

London United Kingdom 1 hr 5 min 30 mi
London Luton Airport (LTN)

London United Kingdom 1 hr 9 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 Tap Air Portugal from $497. The cheapest one-way flight was with LEVEL, Vueling from $285.

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

The cheapest United flight from San Francisco to London is $619, flying from Feb 26 to Mar 11.
The cheapest British Airways flight from San Francisco to London is $648, flying from Feb 26 to Mar 11.
The cheapest Virgin Atlantic flight from San Francisco to London is $620, flying from Feb 26 to Mar 11.
The cheapest SWISS flight from San Francisco to London is $618, flying from Feb 8 to Feb 23.
The cheapest Turkish Airlines flight from San Francisco to London is $754, flying from Apr 30 to May 13.
The cheapest KLM flight from San Francisco to London is $620, flying from Feb 26 to Mar 11.

The cheapest round-trip flight from San Francisco to London starts at $497 from Thu, Apr 30 to Wed, May 13. The cheapest one-way flight starts at $285 and departs on Thu, Apr 16.

10 hr 10 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 13 nonstop flights and 63 connecting flights per week. United flies from San Francisco International Airport (SFO) to Heathrow Airport (LHR) .

Other popular airlines flying from San Francisco to London are:

British Airways offers 11 nonstop flights per week. British Airways flies from San Francisco International Airport (SFO) to Heathrow Airport (LHR) .
Virgin Atlantic offers 7 nonstop flights per week. Virgin Atlantic flies from San Francisco International Airport (SFO) to Heathrow Airport (LHR) .
SWISS offers 50 connecting flights per week. SWISS flies from San Francisco International Airport (SFO) to London City Airport (LCY) , London Gatwick Airport (LGW) , Heathrow Airport (LHR) .
Turkish Airlines offers 42 connecting flights per week. Turkish Airlines flies from San Francisco International Airport (SFO) to London Gatwick Airport (LGW) , Heathrow Airport (LHR) .
KLM offers 22 connecting flights per week. KLM flies from San Francisco International Airport (SFO) to London City Airport (LCY) , 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 Tap Air Portugal from $497. The cheapest one-way flight was with LEVEL, Vueling from $285.

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

The cheapest United flight from San Francisco to London is $619, flying from Feb 26 to Mar 11.
The cheapest British Airways flight from San Francisco to London is $648, flying from Feb 26 to Mar 11.
The cheapest Virgin Atlantic flight from San Francisco to London is $620, flying from Feb 26 to Mar 11.
The cheapest SWISS flight from San Francisco to London is $618, flying from Feb 8 to Feb 23.
The cheapest Turkish Airlines flight from San Francisco to London is $754, flying from Apr 30 to May 13.
The cheapest KLM flight from San Francisco to London is $620, flying from Feb 26 to Mar 11.

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

There are 13 United direct flights from San Francisco to London per week. Flights are available every day.
There are 11 British Airways direct flights from San Francisco to London per week. Flights are available every day.
There are 7 Virgin Atlantic 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 $646 is offered by SWISS from Fri, Feb 6 to Mon, Feb 9.

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

There are 13 United direct flights from San Francisco to London per week. Flights are available every day.
There are 11 British Airways direct flights from San Francisco to London per week. Flights are available every day.
There are 7 Virgin Atlantic 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 $648 from Thu, Feb 26 to Wed, Mar 11 with British Airways.

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 $2,973 from Fri, Apr 17 to Thu, Apr 30 with Alaska, Icelandair.

The cheapest economy class round-trip flights between San Francisco and London start at $497 from Thu, Apr 30 to Wed, May 13.

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 $646 from Fri, Feb 6 to Mon, Feb 9 with SWISS.

The cheapest last-minute deal between San Francisco and London at price $646 is offered by SWISS from Fri, Feb 6 to Mon, Feb 9.

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.