Can I fly direct from London to San Francisco?

Yes, direct flights from London to San Francisco are available, though they represent a smaller portion of the total routes. Historically, approximately 19.6% of flights on this route have been direct. For flights that include stopovers, the median number of stopovers across the trailing 90 days was 2. Travelers seeking direct options should be aware of this historical distribution.

How many hours is the flight from London to San Francisco?

The typical direct flight from London to San Francisco has a median duration of 11 hours and 10 minutes. This route covers an approximate distance of 8616 kilometers. For flights with one stop, the median travel time increases significantly to 18 hours and 20 minutes. Travelers should account for these differences when planning their journey.

Should I set a price alert for London to San Francisco flights?

Historically, deals for flights from London to San Francisco are classified as frequent. This suggests that price fluctuations and opportunities for savings occur regularly. Setting a price alert can be beneficial to track these frequent changes and potentially secure a more favorable fare. This route often sees various pricing adjustments, making alerts a useful tool for travelers.

Flights From London

To San Francisco

Cheap Flights from London to San Francisco

Browse current best options from London. Become a member to unlock all deals and get alerts when new deals appear.

Deals from

London

RatePunk searches hundreds of travel sites at once for deals on flights to San Francisco

Prices updated today

485 airlines compared

80%+ AI score for best value

Fares are subject to change and may not be available for all dates. (Data last updated Nov 2, 2026.)

Today’s best flight deals from London to San Francisco

Explore current cheapest deals departing from London to San Francisco

2026-12-11 – 2026-12-25
LON - San Francisco
92% AI deal score
£609
£406
Round trip
2026-11-13 – 2026-11-17
LON - San Francisco
92% AI deal score
£554
£408
Round trip
2026-11-06 – 2026-11-11
LON - San Francisco
92% AI deal score
£564
£408
Round trip
2026-11-05 – 2026-11-14
LON - San Francisco
91% AI deal score
£522
£408
Round trip
2026-11-05 – 2026-11-13
LON - San Francisco
91% AI deal score
£524
£408
Round trip
2026-11-03 – 2026-11-17
LON - San Francisco
91% AI deal score
£519
£408
Round trip
2027-01-15 – 2027-01-29
LON - San Francisco
82% AI deal score
£453
£411
Round trip
2027-01-10 – 2027-01-17
LON - San Francisco
83% AI deal score
£458
£411
Round trip
2027-01-10 – 2027-01-21
LON - San Francisco
82% AI deal score
£446
£411
Round trip
2027-01-14 – 2027-01-23
LON - San Francisco
82% AI deal score
£453
£411
Round trip

London to San Francisco: Overview

Insights for flights from London to San Francisco

A typical journey from London to San Francisco takes about 11h 10m, including connections. For itineraries that involve connecting flights, the median journey time extends to approximately 26h 55m. This route is classified as long-haul, covering a substantial distance of 8616 kilometers.

If you are looking for cheap flights from London to San Francisco, right now fares typically range from $692–$1315, with a median price of $991. Current fares are near the typical level for this route. Approximately 7% of recent fares were classified as a good price, and new deals appear almost daily.

When considering the cheapest time to fly from London to San Francisco, March stands out with a median fare of $569. February also offers competitive prices, with a median of $646, followed by April at a median of $769.

Most itineraries for flights from London to San Francisco connect at least once, with only 19.6% of recent fares being non-stop. For connecting itineraries, the typical number of connections is 2.

How much is a round trip from London to San Francisco

Regular price: £537 - £1,205

Prices for flights from London to San Francisco are currently below the regular range.

The regular price range for flights from London to San Francisco is between 537 GBP and 1205 GBP. The current lowest deal is 405 GBP with Alaska Airlines, Inc. for travel from Dec 3-Dec 8.

now £405

Low £537

High £1,205

The cheapest time to fly from London to San Francisco

The cheapest month to fly from London to San Francisco is March, with a median price of $569. The most expensive month is July, with a median price of $1783. Generally, prices are lower from February to December.

March

Cheapest

Flights from £569

July

Most Expensive

Flights from £1,783

Jan

Feb

Mar

Apr

Jun

Jul

Aug

Sep

Oct

Nov

Dec

Direct flights from London to San Francisco

Air France

Last-minute flights going from London to San Francisco

Sun, Nov 1

⌛ Last-Minute

LHR - San Francisco

London (LHR) - San Francisco (SFO)

Alaska Airlines, Inc.

£537

£450

One-way

Mon, Nov 2

⌛ Last-Minute

LHR - San Francisco

London (LHR) - San Francisco (SFO)

Alaska Airlines, Inc.

£556

£429

One-way

Mon, Nov 2

⌛ Last-Minute

LHR - San Francisco

London (LHR) - San Francisco (SFO)

Alaska Airlines, Inc.

£524

£429

One-way

Mon, Nov 2

⌛ Last-Minute

LHR - San Francisco

London (LHR) - San Francisco (SFO)

Alaska Airlines, Inc.

£520

£444

One-way

Mon, Nov 2

⌛ Last-Minute

LHR - San Francisco

London (LHR) - San Francisco (SFO)

Alaska Airlines, Inc.

£531

£450

One-way

Mon, Nov 2

⌛ Last-Minute

LHR - San Francisco

London (LHR) - San Francisco (SFO)

Alaska Airlines, Inc.

£557

£453

One-way

Biggest price drops on these dates for flights from London to San Francisco

4 nights

Nov 6 - Nov 10

£591 → £408

31%

4 nights

Nov 5 - Nov 9

£595 → £429

28%

3 nights

Nov 6 - Nov 9

£595 → £429

28%

27 nights

Dec 10 - Jan 6

£589 → £429

27%

Popular Airports to fly from London to San Francisco

London - San Francisco route insights

💸 Price insights

Recent fares near the typical level

Recent fares for London to San Francisco are near the typical level, with a median of $991.

📅 Best time to fly

March is historically cheapest at $569

Historically, March offers the lowest median prices at $569, followed by February at $646.

⏱️ Flight duration

Direct flights average 11h 10m

The typical direct flight from London to San Francisco takes 11 hours and 10 minutes.

✈️ Airlines & availability

Connecting flights are dominant

Connecting flights are dominant for this route, with 19.6% of recent flights being direct.

🏆 Airline highlight

Air France offers direct deals

Air France has offered direct deals on this route, providing a nonstop option for travelers.

🎯 Booking tip

Deals appear frequently

Deals for flights from London to San Francisco appear frequently, typically within a 30-day window.

London main airports to depart from

Heathrow (LHR)

Cheapest

Heathrow Airport is a major international hub, offering many flight options to San Francisco.

📍 ~23 km from city center (reachable by car or train)

💸 Flights from ~£408

San Francisco main airports to arrive at

San Francisco International (SFO)

Cheapest

San Francisco International is a convenient arrival airport for your trip to San Francisco.

📍 ~18 km from city center (reachable by car)

💸 Flights from ~£408

Airports nearby San Francisco used as alternative

Oakland International (OAK)

Oakland International is a useful alternative, offering extensive domestic options and direct BART rail access.

📍 ~18 km from San Francisco (reachable by car or train)

💸 Flights from ~£411

Business & First Class Flight Deals to San Francisco

Discover luxury on the budget with premium cabin class on flights from London to San Francisco.

Elite

Scandinavian Airlines, +1

Business Class

From LHR

Elite

Mar 06

San Francisco, United States

89% AI deal score

$1,913

$1,629

Save $284

TAP Portugal

Business Class

From LHR

Elite

Mar 05

San Francisco, United States

89% AI deal score

$1,929

$1,634

Save $295

TAP Portugal

Business Class

From LHR

Elite

Apr 07

San Francisco, United States

88% AI deal score

$4,027

$3,429

Save $598

Scandinavian Airlines, +1

Business Class

From LGW

Elite

Dec 11

San Francisco, United States

85% AI deal score

$18,476

$13,608

Save $4,868

Swiss International Air Lines, +1

Business Class

From LHR

Elite

Nov 23

San Francisco, United States

84% AI deal score

$13,332

$11,090

Save $2,242

Swiss International Air Lines

Business Class

From LCY

Elite

Nov 25

San Francisco, United States

84% AI deal score

$14,923

$12,068

Save $2,855

Swiss International Air Lines, +1

Business Class

From LHR

Elite

Mar 06

San Francisco, United States

84% AI deal score

$1,976

$1,706

Save $270

KLM

Business Class

From LHR

Elite

Apr 01

San Francisco, United States

83% AI deal score

$4,072

$3,519

Save $553

Scandinavian Airlines

Business Class

From LHR

Elite

Nov 20

San Francisco, United States

83% AI deal score

$13,318

$11,090

Save $2,228

Swiss International Air Lines

Business Class

Frequently Asked Questions About Flights to San Francisco

Historically, booking your flight 60+ days in advance typically yields the lowest prices for flights from London to San Francisco. Across the trailing quarter, the average price for tickets booked within this window was $1182. In contrast, booking 0-6 days before departure saw average prices rise to $1955. For those booking 28-59 days out, the average price was $1262, demonstrating a clear advantage to planning ahead.

Based on historical data from the trailing 90 days, a good price for a flight from London to San Francisco is considered to be around $692 or less. The median price for this route was $991. Prices tend to increase significantly beyond this threshold, with 75% of fares being $1315 or higher. Aiming for a fare below $692 would put you in the lowest 25% of prices observed.

Historically, March has been the cheapest month to fly from London to San Francisco, with a median price of $569. February also offered competitive fares, with a median price of $646. While April had a median price of $769, it was still considerably lower than the annual median price of $991. These months typically offer better value compared to other times of the year.

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London to San Francisco: Overview

Insights for flights from London to San Francisco

How much is a round trip from London to San Francisco

Regular price: £537 - £1,205

Prices for flights from London to San Francisco are currently below the regular range.

The regular price range for flights from London to San Francisco is between 537 GBP and 1205 GBP. The current lowest deal is 405 GBP with Alaska Airlines, Inc. for travel from Dec 3-Dec 8.

now £405

Low £537

High £1,205

The cheapest time to fly from London to San Francisco

March

Cheapest

Flights from £569

July

Most Expensive

Flights from £1,783

Jan

Feb

Mar

Apr

Jun

Jul

Aug

Sep

Oct

Nov

Dec

Direct flights from London to San Francisco

Air France

Last-minute flights going from London to San Francisco

Sun, Nov 1

⌛ Last-Minute

LHR - San Francisco

London (LHR) - San Francisco (SFO)

Alaska Airlines, Inc.

£537

£450

One-way

Mon, Nov 2

⌛ Last-Minute

LHR - San Francisco

London (LHR) - San Francisco (SFO)

Alaska Airlines, Inc.

£556

£429

One-way

Mon, Nov 2

⌛ Last-Minute

LHR - San Francisco

London (LHR) - San Francisco (SFO)

Alaska Airlines, Inc.

£524

£429

One-way

Mon, Nov 2

⌛ Last-Minute

LHR - San Francisco

London (LHR) - San Francisco (SFO)

Alaska Airlines, Inc.

£520

£444

One-way

Mon, Nov 2

⌛ Last-Minute

LHR - San Francisco

London (LHR) - San Francisco (SFO)

Alaska Airlines, Inc.

£531

£450

One-way

Mon, Nov 2

⌛ Last-Minute

LHR - San Francisco

London (LHR) - San Francisco (SFO)

Alaska Airlines, Inc.

£557

£453

One-way

Biggest price drops on these dates for flights from London to San Francisco

4 nights

Nov 6 - Nov 10

£591 → £408

31%

4 nights

Nov 5 - Nov 9

£595 → £429

28%

3 nights

Nov 6 - Nov 9

£595 → £429

28%

27 nights

Dec 10 - Jan 6

£589 → £429

27%

Popular Airports to fly from London to San Francisco

London - San Francisco route insights

💸 Price insights

Recent fares near the typical level

Recent fares for London to San Francisco are near the typical level, with a median of $991.

📅 Best time to fly

March is historically cheapest at $569

Historically, March offers the lowest median prices at $569, followed by February at $646.

⏱️ Flight duration

Direct flights average 11h 10m

The typical direct flight from London to San Francisco takes 11 hours and 10 minutes.

✈️ Airlines & availability

Connecting flights are dominant

Connecting flights are dominant for this route, with 19.6% of recent flights being direct.

🏆 Airline highlight

Air France offers direct deals

Air France has offered direct deals on this route, providing a nonstop option for travelers.

🎯 Booking tip

Deals appear frequently

Deals for flights from London to San Francisco appear frequently, typically within a 30-day window.

London main airports to depart from

Heathrow (LHR)

Cheapest

Heathrow Airport is a major international hub, offering many flight options to San Francisco.

📍 ~23 km from city center (reachable by car or train)

💸 Flights from ~£408

San Francisco main airports to arrive at

San Francisco International (SFO)

Cheapest

San Francisco International is a convenient arrival airport for your trip to San Francisco.

📍 ~18 km from city center (reachable by car)

💸 Flights from ~£408

Airports nearby San Francisco used as alternative

Oakland International (OAK)

Oakland International is a useful alternative, offering extensive domestic options and direct BART rail access.

San Francisco, United States

83% AI deal score

$13,318

$11,090

Save $2,228

Swiss International Air Lines

Business Class

Frequently Asked Questions About Flights to San Francisco

Cheap Flights from London to San Francisco

Today’s best flight deals from London to San Francisco

London to San Francisco: Overview

Insights for flights from London to San Francisco

How much is a round trip from London to San Francisco

The cheapest time to fly from London to San Francisco

Direct flights from London to San Francisco

Last-minute flights going from London to San Francisco

Biggest price drops on these dates for flights from London to San Francisco

Popular Airports to fly from London to San Francisco

London - San Francisco route insights

Recent fares near the typical level

March is historically cheapest at $569

Direct flights average 11h 10m

Connecting flights are dominant

Air France offers direct deals

Deals appear frequently

London main airports to depart from

San Francisco main airports to arrive at

Airports nearby San Francisco used as alternative

Business & First Class Flight Deals to San Francisco

Best Elite deals to San Francisco

Jan 16

Mar 31

Apr 12

Mar 06

Mar 05

Apr 07

Dec 11

Nov 23

Nov 25

Mar 06

Apr 01

Nov 20

Frequently Asked Questions About Flights to San Francisco

How early should I book London to San Francisco flights to get the cheapest price?

What's a cheap fare from London to San Francisco?

What's the best month to fly from London to San Francisco?

Can I fly direct from London to San Francisco?

How many hours is the flight from London to San Francisco?

Should I set a price alert for London to San Francisco flights?

Related routes

More routes from London

Flights to San Francisco from other cities

London to San Francisco: Overview

Insights for flights from London to San Francisco

How much is a round trip from London to San Francisco

The cheapest time to fly from London to San Francisco

Direct flights from London to San Francisco

Last-minute flights going from London to San Francisco

Biggest price drops on these dates for flights from London to San Francisco

Popular Airports to fly from London to San Francisco

London - San Francisco route insights

Recent fares near the typical level

March is historically cheapest at $569

Direct flights average 11h 10m

Connecting flights are dominant

Air France offers direct deals

Deals appear frequently

London main airports to depart from

San Francisco main airports to arrive at

Airports nearby San Francisco used as alternative

Business & First Class Flight Deals to San Francisco

Best Elite deals to San Francisco

Jan 16

Mar 31

Apr 12

Mar 06

Mar 05

Apr 07

Dec 11

Nov 23

Nov 25

Mar 06

Apr 01

Nov 20

Frequently Asked Questions About Flights to San Francisco

How early should I book London to San Francisco flights to get the cheapest price?

What's a cheap fare from London to San Francisco?

What's the best month to fly from London to San Francisco?