Can I fly direct from London to San Francisco?

Yes, direct flights from London to San Francisco are available. Historically, approximately 25.4% of all flights on this route have been direct. For journeys involving a stopover, travelers typically experience one stop. This indicates that while direct options exist, a significant portion of flights include at least one connection.

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

A direct flight from London to San Francisco typically takes about 11 hours and 0 minutes. For flights with one stop, the median duration extends to approximately 16 hours and 47 minutes. The total air distance covered on this route is 8616 kilometers. Travelers should account for these differences in flight time when planning their journey.

Are non-stop flights from London to San Francisco worth the extra cost?

Historically, direct flights from London to San Francisco have had a median price of $850, while connecting flights had a median price of $841. This represents a premium of approximately 1% for direct flights. Direct flights constitute about 32.1% of the available options. The minimal price difference suggests that the convenience of a non-stop journey may be available without a significant increase in cost.

Flights From London

To San Francisco

Cheap Flights from London to San Francisco

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Deals from

London

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

Prices updated 1 day ago

461 airlines compared

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Fares are subject to change and may not be available for all dates. (Data last updated Sep 14, 2026.)

Today’s best flight deals from London to San Francisco

Explore current cheapest deals departing from London to San Francisco

2026-10-07 – 2026-10-11
LON - San Francisco
95% AI deal score
£602
£356
Round trip
2026-09-23 – 2026-09-29
LON - San Francisco
92% AI deal score
£517
£358
Round trip
2026-09-22 – 2026-09-28
LON - San Francisco
92% AI deal score
£513
£360
Round trip
2026-09-23 – 2026-09-28
LON - San Francisco
93% AI deal score
£537
£365
Round trip
2026-11-19 – 2026-11-30
LON - San Francisco
92% AI deal score
£503
£365
Round trip
2026-11-18 – 2026-11-30
LON - San Francisco
92% AI deal score
£501
£366
Round trip
2027-01-12 – 2027-01-26
LON - San Francisco
93% AI deal score
£535
£366
Round trip
2027-01-19 – 2027-01-26
LON - San Francisco
93% AI deal score
£548
£366
Round trip
2027-01-19 – 2027-01-30
LON - San Francisco
93% AI deal score
£533
£366
Round trip
2026-11-19 – 2026-11-27
LON - San Francisco
92% AI deal score
£507
£367
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 0m, including connections. Since most itineraries for this route involve at least one stop, the median connecting flight time is significantly longer at 18h 41m, compared to 11h 0m for non-stop options. This route is classified as long-haul, covering a substantial distance of 8616 km.

For those seeking cheap flights from London to San Francisco, right now fares are above the typical level. Prices typically range from $726–$1117, with a median of $890. Only 10% of recent fares were classified as a good price, indicating that finding lower fares can be challenging.

When is the cheapest time to fly from London to San Francisco? The data indicates that February is typically the most affordable month, with a median fare of $626. Other relatively inexpensive months include October, with a median fare of $768, and April, where the median fare is $774.

Most itineraries for flights from London to San Francisco connect at least once, with only 25.4% of recent fares being non-stop. For the majority of flights that do include connections, the typical number of stopovers is 1. New deals for this route appear almost daily, suggesting frequent opportunities to find fares.

How much is a round trip from London to San Francisco

Regular price: £527 - £785

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 typically between 527 GBP and 785 GBP. The current lowest deal is 344 GBP with Swiss International Air Lines, for travel from Oct 7-Oct 11.

now £344

Low £527

High £785

The cheapest time to fly from London to San Francisco

The cheapest month to fly from London to San Francisco is February, with a median price of $627. The most expensive month is July, with a median price of $1193. Prices are generally lower from January to November.

February

Cheapest

Flights from £627

July

Most Expensive

Flights from £1,193

Jan

Feb

Mar

Apr

May

Jun

Jul

Aug

Sep

Oct

Nov

Dec

Direct flights from London to San Francisco

British Airways

Last-minute flights going from London to San Francisco

Fri, Sep 18

⌛ Last-Minute

LHR - San Francisco

London (LHR) - San Francisco (SFO)

Swiss International Air Lines

£656

£372

One-way

Mon, Sep 21

⌛ Last-Minute

LHR - San Francisco

London (LHR) - San Francisco (SFO)

Swiss International Air Lines

£517

£372

One-way

Tue, Sep 22

⌛ Last-Minute

LHR - San Francisco

London (LHR) - San Francisco (SFO)

Swiss International Air Lines

£513

£360

One-way

Tue, Sep 22

⌛ Last-Minute

LHR - San Francisco

London (LHR) - San Francisco (SFO)

Swiss International Air Lines

£534

£371

One-way

Tue, Sep 22

⌛ Last-Minute

LHR - San Francisco

London (LHR) - San Francisco (SFO)

Swiss International Air Lines

£513

£372

One-way

Wed, Sep 23

⌛ Last-Minute

LHR - San Francisco

London (LHR) - San Francisco (SFO)

Swiss International Air Lines

£517

£358

One-way

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

4 nights

Dec 3 - Dec 7

£647 → £371

43%

4 nights

Dec 5 - Dec 9

£651 → £375

42%

3 nights

Mar 18 - Mar 21

£652 → £376

42%

3 nights

Dec 5 - Dec 8

£651 → £376

42%

Popular Airports to fly from London to San Francisco

London - San Francisco route insights

💸 Price insights

Recent fares are above the typical level.

Recent fares for London to San Francisco are above the typical level for this route.

📅 Best time to fly

February is historically the cheapest month to fly.

Historically, February is the cheapest month to fly from London to San Francisco, with a median price of $626.

⏱️ Flight duration

Direct flights take 11h 0m.

The median flight time for direct flights from London to San Francisco is 11h 0m.

✈️ Airlines & availability

Connecting flights are dominant on this route.

Connecting flights are dominant for London to San Francisco, with a median of 1 stopover.

🏆 Airline highlight

British Airways offers direct flights.

British Airways is one airline offering direct flights from London to San Francisco.

🎯 Booking tip

Deals are frequent for this route.

Deals for flights from London to San Francisco are frequent, appearing within a 30-day window.

London main airports to depart from

Heathrow (LHR)

Cheapest

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

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

💸 Flights from ~£361

San Francisco main airports to arrive at

San Francisco International (SFO)

Cheapest

San Francisco International Airport is a good arrival choice for flights from London to San Francisco.

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

💸 Flights from ~£374

Airports nearby San Francisco used as alternative

Oakland International (OAK)

Cheapest

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

📍 ~19 km from San Francisco (reachable by BART rail system)

💸 Flights from ~£429

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

Best Elite deals to San Francisco

Exclusive daily First Class, Business Class, and Premium Economy flight deals, refreshed every 24 hours.

From LGW

Elite

Oct 30

San Francisco, United States

92% AI deal score

$5,199

$3,342

Save $1,857

Icelandair, +1

Business Class

From LGW

Elite

Oct 30

San Francisco, United States

92% AI deal score

$5,265

$3,342

Save $1,923

Icelandair, +1

Business Class

From LGW

Elite

Oct 30

San Francisco, United States

91% AI deal score

$4,881

$3,342

Save $1,539

Icelandair, +1

Business Class

From LGW

Elite

Oct 30

San Francisco, United States

91% AI deal score

$5,041

$3,342

Save $1,699

Icelandair, +1

Business Class

From LGW

Elite

Oct 30

San Francisco, United States

91% AI deal score

$4,952

$3,342

Save $1,610

Icelandair, +1

Business Class

From LGW

Elite

Oct 30

San Francisco, United States

91% AI deal score

$4,943

$3,342

Save $1,601

Icelandair, +1

Business Class

From LGW

Elite

Dec 15

San Francisco, United States

91% AI deal score

$2,238

$1,700

Save $538

TAP Portugal

Business Class

From LHR

Elite

Oct 07

San Francisco, United States

90% AI deal score

$2,240

$1,726

Save $514

Austrian Airlines

Business Class

From LHR

Elite

Dec 12

San Francisco, United States

89% AI deal score

$2,101

$1,701

Save $400

TAP Portugal

Business Class

From LHR

Elite

Dec 13

San Francisco, United States

89% AI deal score

$2,102

$1,701

Save $401

TAP Portugal

Business Class

From LHR

Elite

Dec 25

San Francisco, United States

89% AI deal score

$2,094

$1,701

Save $393

TAP Portugal

Business Class

From LHR

Elite

Sep 29

San Francisco, United States

89% AI deal score

$2,203

$1,723

Save $480

United Airlines

Business Class

Frequently Asked Questions About Flights to San Francisco

Historically, the lowest prices for flights from London to San Francisco are found when booking 7-13 days in advance. During this period, the average price is typically around $823. Booking within 0-6 days of departure sees the average price increase to approximately $1062. For those booking 60+ days out, the average price observed is about $1023, indicating that last-minute bookings can sometimes be more expensive than very early bookings.

Across the trailing quarter, a good price for a flight from London to San Francisco is considered to be $726 or less. The median price for this route has been observed at $890. Prices can go higher, with 75% of fares being $1117 or less. Travelers aiming for a budget-friendly trip should target fares around the $726 mark.

Historically, February has been the cheapest month to fly from London to San Francisco, with a median price of $626. Other relatively inexpensive months include October, with a median price of $768, and April, with a median price of $774. The annual median price for this route is $890. Travelers looking for the best value should consider flying in February.

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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: £527 - £785

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

now £344

Low £527

High £785

The cheapest time to fly from London to San Francisco

February

Cheapest

Flights from £627

July

Most Expensive

Flights from £1,193

Jan

Feb

Mar

Apr

May

Jun

Jul

Aug

Sep

Oct

Nov

Dec

Direct flights from London to San Francisco

British Airways

Last-minute flights going from London to San Francisco

Fri, Sep 18

⌛ Last-Minute

LHR - San Francisco

London (LHR) - San Francisco (SFO)

Swiss International Air Lines

£656

£372

One-way

Mon, Sep 21

⌛ Last-Minute

LHR - San Francisco

London (LHR) - San Francisco (SFO)

Swiss International Air Lines

£517

£372

One-way

Tue, Sep 22

⌛ Last-Minute

LHR - San Francisco

London (LHR) - San Francisco (SFO)

Swiss International Air Lines

£513

£360

One-way

Tue, Sep 22

⌛ Last-Minute

LHR - San Francisco

London (LHR) - San Francisco (SFO)

Swiss International Air Lines

£534

£371

One-way

Tue, Sep 22

⌛ Last-Minute

LHR - San Francisco

London (LHR) - San Francisco (SFO)

Swiss International Air Lines

£513

£372

One-way

Wed, Sep 23

⌛ Last-Minute

LHR - San Francisco

London (LHR) - San Francisco (SFO)

Swiss International Air Lines

£517

£358

One-way

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

4 nights

Dec 3 - Dec 7

£647 → £371

43%

4 nights

Dec 5 - Dec 9

£651 → £375

42%

3 nights

Mar 18 - Mar 21

£652 → £376

42%

3 nights

Dec 5 - Dec 8

£651 → £376

42%

Popular Airports to fly from London to San Francisco

London - San Francisco route insights

💸 Price insights

Recent fares are above the typical level.

Recent fares for London to San Francisco are above the typical level for this route.

📅 Best time to fly

February is historically the cheapest month to fly.

Historically, February is the cheapest month to fly from London to San Francisco, with a median price of $626.

⏱️ Flight duration

Direct flights take 11h 0m.

The median flight time for direct flights from London to San Francisco is 11h 0m.

✈️ Airlines & availability

Connecting flights are dominant on this route.

Connecting flights are dominant for London to San Francisco, with a median of 1 stopover.

🏆 Airline highlight

British Airways offers direct flights.

British Airways is one airline offering direct flights from London to San Francisco.

🎯 Booking tip

Deals are frequent for this route.

Deals for flights from London to San Francisco are frequent, appearing within a 30-day window.

London main airports to depart from

Heathrow (LHR)

Cheapest

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

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

💸 Flights from ~£361

San Francisco main airports to arrive at

San Francisco International (SFO)

Cheapest

San Francisco International Airport is a good arrival choice for flights from London to San Francisco.

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

💸 Flights from ~£374

Airports nearby San Francisco used as alternative

Oakland International (OAK)

Cheapest

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

San Francisco, United States

89% AI deal score

$2,203

$1,723

Save $480

United Airlines

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 are above the typical level.

February is historically the cheapest month to fly.

Direct flights take 11h 0m.

Connecting flights are dominant on this route.

British Airways offers direct flights.

Deals are frequent for this route.

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

Oct 30

Oct 30

Oct 30

Oct 30

Oct 30

Oct 30

Dec 15

Oct 07

Dec 12

Dec 13

Dec 25

Sep 29

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?

Are non-stop flights from London to San Francisco worth the extra cost?

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 are above the typical level.

February is historically the cheapest month to fly.

Direct flights take 11h 0m.

Connecting flights are dominant on this route.

British Airways offers direct flights.

Deals are frequent for this route.

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

Oct 30

Oct 30

Oct 30

Oct 30

Oct 30

Oct 30

Dec 15

Oct 07

Dec 12

Dec 13

Dec 25

Sep 29

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?