How long is the flight from London to San Francisco?

Airlines like United Airlines, Delta, and TAP AIR PORTUGAL fly from London to San Francisco in about 11h. The time it takes to get you to your destination can typically vary by up to 19h 05m. The distance from London to San Francisco is about 8610 km. Both multi-stop and direct flights can be found to your destination and back. Find deals

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

Our cheapest airline available from London to San Francisco is British Airways. Our recent data shows that you can find tickets from as low as ₹ 46,260 on this airline. An additional option worth looking into is Virgin Atlantic, starting at ₹ 51,583. Users have found that British Airways is 21% cheaper than the other options available to this destination. Find deals

What are the cheapest airlines to fly from London to San Francisco one-way?

The cheapet airlines for a one-way flight from London to San Francisco are British Airways (₹ 42,284), Delta (₹ 43,344), and KLM (₹ 44,138). Find deals

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

Travellers seeking maximum savings on their London to San Francisco flight should consider departing on Friday afternoons when fares are most often at their lowest. Monday mornings flights should be avoided if possible as fares are typically the most expensive at this time.

In terms of precipitation, rainfall in San Francisco ranges from 0.0 - 112.0 inches per month. January is typically the wettest month, when rainfall can reach 112.0 mm. July is typically the driest time to visit San Francisco when rainfall is around 0.0 mm.

If weather is an important factor for your trip to San Francisco, use this chart to help with planning. For those seeking warmer temperatures, September is the ideal time of year to visit, when temperatures reach an average of 17.0 C. Travellers hoping to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 11.0 C).

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

No one likes to see their flight delayed. When booking a flight from London to San Francisco consider choosing KLM(86%), Air France(86%) or Delta(86%), as they are the most reliable in getting you off to your destination on time.

What is the cheapest day to fly return from London to San Francisco?

Travellers have found that booking a Wednesday departure is the best way to save up to 39% on the cost of booking your flights compared to booking on days of the week where this route is of high demand.

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

To save up to 19% on this flight, we recommend booking at least 46 days prior to travel. The price may fluctuate and will likely increase closer to your departure date. Users on Cheapflights have found tickets from London to San Francisco from ₹ 52,789 1-2 weeks out and tickets from ₹ 64,618 for flights departing within the next 72 hours.

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

The best pricing can be found in the month of February. Prices to San Francisco from London average ₹ 58,630. You can even find prices in February for less than ₹ 58,630, as users have found deals to San Francisco from as low as ₹ 39,901. The month of July appears to be one of the more expensive times to travel to San Francisco from London. Flying in the targeted month can save you up to 31%.

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

San Francisco (SFO), located 19.0 km from the city centre, is the airport you fly into when you book flights from London to San Francisco. 2 airlines have flights to San Francisco from London on a regular basis. Booking flights from London to San Francisco should not be difficult; the airport handles an average of 42 inbound flights from London per day.

Can I find deals for flights from London to San Francisco that include hotel bookings?

Yes. In addition to deals on London to San Francisco flights, Cheapflights offers holiday packages that include both flights and hotel.

How can I find direct flights from London to San Francisco?

After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from London to San Francisco.

Can I find deals for business class flights from London to San Francisco?

Yes. Cheapflights offers flight deals from London to San Francisco by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

₹ 41,755+ Flights from London to San Francisco

Cheapflights Tip: The best prices from London to San Francisco are usually found in February or September, booked 86 days in advance, depart on a Wednesday or Saturday and return on a Thursday

Cheap flight deals from London to San Francisco

Round-trip from	₹ 47,051
One-way from	₹ 41,755
Popular in	July
Cheapest in	February
Average price	₹ 50,759

Delta
9/10-5/3
2 total stops
32h 20m total
London to San Francisco

Search Deals

22/2
1 total stop
35h 40m total
London to San Francisco

Search Deals

Highest demand for flights based on searches. 15% potential increase in price (₹ 925,888 potential increase over avg. return price).

Search Deals

Cheapest flight prices on average. 2% potential price decrease (₹ 146,668 potential savings vs. average return price).

Search Deals

Average for round-trip flights in September 2025

Search Deals

Find flight deals from London to San Francisco

Cheapest flights from London to San Francisco
Explore the most affordable flight options available from London to San Francisco. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 14 September 2025.

Thu 9/1006:15LHR - SFO

1 stop14h 35mDelta

Fri 6/316:30SFO - LHR

Nonstop10h 10mDelta

Deal found 13/9₹ 47,051

Sat 27/916:15LHR - SFO

Nonstop11h 05mUnited Airlines

Sat 4/1008:25SFO - LHR

1 stop13h 55mUnited Airlines

Deal found 12/9₹ 47,140

Fri 3/1010:35LHR - SFO

Nonstop11h 05mUnited Airlines

Mon 13/1013:05SFO - LHR

Nonstop10h 20mUnited Airlines

Deal found 13/9₹ 47,228

Sat 20/910:35LHR - SFO

Nonstop11h 05mUnited Airlines

Fri 3/1005:05SFO - LHR

1 stop20h 35mUnited Airlines

Deal found 13/9₹ 47,316

Sun 21/912:20LHR - SFO

Nonstop11h 05mUnited Airlines

Sat 4/1016:05SFO - LHR

Nonstop10h 20mUnited Airlines

Deal found 14/9₹ 47,404

Fri 19/909:30LHR - SFO

1 stop18h 21mUnited Airlines

Thu 2/1011:19SFO - LHR

1 stop14h 21mUnited Airlines

Deal found 12/9₹ 47,493

Wed 24/906:30LHR - SFO

1 stop13h 15mDelta

Mon 6/1016:05SFO - LHR

Nonstop10h 20mDelta

Deal found 12/9₹ 47,581

Sat 27/912:15LHR - SFO

1 stop18h 39mBritish Airways

Wed 8/1014:17SFO - LHR

1 stop16h 08mBritish Airways

Deal found 12/9₹ 47,669

Sat 20/916:55LHR - SFO

1 stop14h 21mBritish Airways

Sat 4/1010:14SFO - LHR

1 stop13h 06mBritish Airways

Deal found 13/9₹ 47,757

Tue 30/911:15LHR - SFO

Nonstop11h 00mDelta

Thu 9/1015:00SFO - LHR

1 stop14h 30mDelta

Deal found 12/9₹ 48,111

Tue 30/916:25LHR - SFO

Nonstop11h 05mDelta

Mon 6/1013:45SFO - LHR

1 stop13h 35mDelta

Deal found 13/9₹ 48,199

Fri 12/1216:40LGW - SFO

1 stop30h 05mTAP AIR PORTUGAL

Sat 27/1216:35SFO - LGW

1 stop33h 15mTAP AIR PORTUGAL

Deal found 12/9₹ 53,937

Best flights from London to San Francisco
Discover carefully curated flight deals from London to San Francisco that have cost, travel time, and stopovers in mind to ensure you get the best travel experience. Data last updated 14 September 2025.

Sat 1/1113:45LHR - SFO

Nonstop11h 15mMultiple Airlines

Sat 15/1112:50SFO - LHR

Nonstop10h 35mMultiple Airlines

Deal found 12/9₹ 47,140

Wed 12/1110:05LHR - SFO

Nonstop11h 15mUnited Airlines

Mon 24/1112:50SFO - LHR

Nonstop10h 35mUnited Airlines

Deal found 13/9₹ 47,228

Thu 13/1111:40LHR - SFO

Nonstop11h 00mDelta

Tue 25/1116:30SFO - LHR

Nonstop10h 10mDelta

Deal found 13/9₹ 47,228

Sun 28/919:05LHR - SFO

1 stop22h 19mBritish Airways

Wed 8/1006:51SFO - LHR

1 stop15h 29mBritish Airways

Deal found 13/9₹ 47,669

Fri 12/1216:40LGW - SFO

1 stop30h 05mTAP AIR PORTUGAL

Sat 27/1216:35SFO - LGW

1 stop33h 15mTAP AIR PORTUGAL

Deal found 12/9₹ 53,937

Tue 28/1018:40LGW - SFO

1 stop29h 50mSWISS

Mon 3/1119:25SFO - LGW

1 stop14h 25mSWISS

Deal found 12/9₹ 54,996

Thu 5/313:45LHR - SFO

Nonstop11h 15mUnited Airlines

Mon 9/313:50SFO - LHR

Nonstop10h 35mUnited Airlines

Deal found 13/9₹ 47,228

Sat 1/1106:30LHR - SFO

1 stop13h 20mDelta

Tue 25/1100:45SFO - LHR

1 stop22h 20mDelta

Deal found 12/9₹ 47,581

Sun 28/912:20LHR - SFO

Nonstop11h 05mUnited Airlines

Sun 5/1005:15SFO - LHR

1 stop17h 05mUnited Airlines

Deal found 13/9₹ 47,228

Fri 3/1008:40LHR - SFO

2 stops20h 47mDelta

Wed 15/1010:40SFO - LHR

2 stops15h 10mDelta

Deal found 13/9₹ 48,111

Mon 12/111:35LHR - SFO

2 stops16h 32mUnited Airlines

Mon 19/122:50SFO - LHR

1 stop13h 45mUnited Airlines

Deal found 13/9₹ 47,757

Fri 14/1111:40LHR - SFO

Nonstop11h 00mDelta

Sat 15/1100:45SFO - LHR

1 stop22h 20mDelta

Deal found 11/9₹ 48,111

Direct flights from London to San Francisco
Explore direct flight options from London to San Francisco based on user searches, and compare prices and availability for your desired travel dates. Data last updated 14 September 2025.

Sat 27/916:15LHR - SFO

Nonstop11h 05mUnited Airlines

Sat 4/1016:05SFO - LHR

Nonstop10h 20mUnited Airlines

Deal found 12/9₹ 47,140

Fri 3/1010:35LHR - SFO

Nonstop11h 05mUnited Airlines

Wed 8/1013:05SFO - LHR

Nonstop10h 20mUnited Airlines

Deal found 13/9₹ 47,228

Sat 21/210:05LHR - SFO

Nonstop11h 15mUnited Airlines

Sun 1/317:25SFO - LHR

Nonstop10h 35mUnited Airlines

Deal found 13/9₹ 47,316

Tue 10/311:40LHR - SFO

Nonstop11h 00mDelta

Fri 27/317:30SFO - LHR

Nonstop10h 10mDelta

Deal found 13/9₹ 47,934

Sun 5/1011:15LHR - SFO

Nonstop11h 00mDelta

Fri 6/316:30SFO - LHR

Nonstop10h 10mDelta

Deal found 13/9₹ 48,199

Sat 27/916:25LHR - SFO

Nonstop11h 05mDelta

Wed 8/1016:05SFO - LHR

Nonstop10h 20mDelta

Deal found 12/9₹ 49,258

Sun 5/1011:15LHR - SFO

Nonstop11h 00mDelta

Sat 7/316:30SFO - LHR

Nonstop10h 10mDelta

Deal found 13/9₹ 50,317

Sun 12/1010:35LHR - SFO

Nonstop11h 05mUnited Airlines

Fri 7/1112:50SFO - LHR

Nonstop10h 35mUnited Airlines

Deal found 12/9₹ 52,083

Sun 12/1012:20LHR - SFO

Nonstop11h 05mUnited Airlines

Mon 20/1013:05SFO - LHR

Nonstop10h 20mUnited Airlines

Deal found 13/9₹ 52,171

Fri 10/1016:25LHR - SFO

Nonstop11h 05mDelta

Tue 3/316:30SFO - LHR

Nonstop10h 10mDelta

Deal found 13/9₹ 53,054

Last-minute flights from London to San Francisco
Discover last-minute flight deals from London to San Francisco. Data last updated 14 September 2025 and is based on user searches.

Fri 19/909:30LHR - SFO

1 stop18h 21mUnited Airlines

Thu 2/1011:19SFO - LHR

1 stop14h 21mUnited Airlines

Deal found 12/9₹ 47,493

Sat 20/916:15LHR - SFO

Nonstop11h 00mUnited Airlines

Fri 3/1011:40SFO - LHR

1 stop13h 55mUnited Airlines

Deal found 13/9₹ 47,316

Sat 20/916:55LHR - SFO

1 stop14h 21mBritish Airways

Sat 4/1010:14SFO - LHR

1 stop13h 06mBritish Airways

Deal found 13/9₹ 47,757

Sun 21/912:20LHR - SFO

Nonstop11h 05mUnited Airlines

Sat 4/1016:05SFO - LHR

Nonstop10h 20mUnited Airlines

Deal found 14/9₹ 47,404

Mon 22/909:50LGW - SFO

1 stop14h 44mMultiple Airlines

Tue 7/1015:10SFO - LGW

1 stop35h 45mMultiple Airlines

Deal found 14/9₹ 54,290

Wed 24/906:30LHR - SFO

1 stop13h 15mDelta

Mon 6/1016:05SFO - LHR

Nonstop10h 20mDelta

Deal found 12/9₹ 47,581

Sat 27/916:15LHR - SFO

Nonstop11h 05mUnited Airlines

Sat 4/1008:25SFO - LHR

1 stop13h 55mUnited Airlines

Deal found 12/9₹ 47,140

Sat 27/908:20LHR - SFO

1 stop18h 15mBritish Airways

Fri 10/1021:35SFO - LHR

1 stop28h 45mBritish Airways

Deal found 12/9₹ 47,669

Tue 30/911:15LHR - SFO

Nonstop11h 00mDelta

Wed 8/1018:59SFO - LHR

1 stop14h 16mDelta

Deal found 12/9₹ 48,111

Tue 30/911:15LHR - SFO

Nonstop11h 00mDelta

Sat 4/1022:45SFO - LHR

1 stop24h 30mDelta

Deal found 13/9₹ 48,199

Fri 3/1010:35LHR - SFO

Nonstop11h 05mUnited Airlines

Fri 17/1016:35SFO - LHR

1 stop12h 45mUnited Airlines

Deal found 13/9₹ 47,228

Thu 9/1009:55LHR - SFO

2 stops22h 10mDelta

Thu 5/316:30SFO - LHR

Nonstop10h 10mDelta

Deal found 13/9₹ 47,051

One-way flights from London to San Francisco
Search for one-way flight options from London to San Francisco. Find affordable one-way fares based on user searches. Data last updated 14 September 2025.

Sun 22/213:00LGW - SFO

1 stop35h 40mMultiple Airlines

Deal found 12/9₹ 41,755

Sat 21/219:40LGW - SFO

2 stops36h 19mBritish Airways

Deal found 12/9₹ 42,284

Sat 21/219:40LHR - SFO

2 stops36h 19mBritish Airways

Deal found 12/9₹ 42,637

Thu 2/1013:05LGW - SFO

1 stop18h 44mMultiple Airlines

Deal found 12/9₹ 43,079

Sat 1/1106:30LHR - SFO

1 stop13h 20mKLM

Deal found 12/9₹ 43,344

Sat 1/1106:30LHR - SFO

1 stop13h 20mDelta

Deal found 12/9₹ 43,432

Fri 28/1106:30LHR - SFO

2 stops23h 55mDelta

Deal found 11/9₹ 43,873

Mon 29/1206:30LHR - SFO

1 stop13h 20mKLM

Deal found 12/9₹ 44,138

Wed 24/1206:30LHR - SFO

1 stop13h 20mKLM

Deal found 13/9₹ 44,226

Tue 7/1013:05LGW - SFO

1 stop18h 39mMultiple Airlines

Deal found 12/9₹ 44,315

Sun 2/1105:20LHR - SFO

2 stops25h 13mDelta

Deal found 12/9₹ 44,403

Sat 15/1119:40LGW - SFO

2 stops35h 17mBritish Airways

Deal found 12/9₹ 44,756

Cheapflights Fare Finder

Use the filters below to find and compare flights from London to San Francisco that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

LondonSan Francisco

LHR - SFO

LHRSFO

London Heathrow

Sat 1/11

13:45-18:00

Nonstop11h 15m

San Francisco

Sat 15/11

12:50-07:25

Nonstop10h 35m

₹ 47,140

LondonSan Francisco

LHR - SFO

LHRSFO

London Heathrow

Wed 12/11

10:05-13:20

Nonstop11h 15m

San Francisco

Mon 24/11

12:50-07:25

Nonstop10h 35m

₹ 47,228

LondonSan Francisco

LHR - SFO

LHRSFO

London Heathrow

Thu 13/11

11:40-14:40

Nonstop11h 00m

San Francisco

Tue 25/11

16:30-10:40

Nonstop10h 10m

₹ 47,228

LondonSan Francisco

LHR - SFO

LHRSFO

London Heathrow

Thu 5/3

13:45-17:00

Nonstop11h 15m

San Francisco

Mon 9/3

13:50-07:25

Nonstop10h 35m

₹ 47,228

LondonSan Francisco

LHR - SFO

LHRSFO

London Heathrow

Sun 28/9

12:20-15:25

Nonstop11h 05m

San Francisco

Sun 5/10

05:15-06:20

1 stop17h 05m

₹ 47,228

LondonSan Francisco

LHR - SFO

LHRSFO

London Heathrow

Sat 1/11

06:30-12:50

1 stop13h 20m

San Francisco

Tue 25/11

00:45-07:05

1 stop22h 20m

₹ 47,581

LondonSan Francisco

LHR - SFO

LHRSFO

London Heathrow

Sun 28/9

19:05-09:24

1 stop22h 19m

San Francisco

Wed 8/10

06:51-06:20

1 stop15h 29m

₹ 47,669

LondonSan Francisco

LHR - SFO

LHRSFO

London Heathrow

Mon 12/1

11:35-20:07

2 stops16h 32m

San Francisco

Mon 19/1

22:50-20:35

1 stop13h 45m

₹ 47,757

LondonSan Francisco

LHR - SFO

LHRSFO

London Heathrow

Fri 3/10

08:40-21:27

2 stops20h 47m

San Francisco

Wed 15/10

10:40-09:50

2 stops15h 10m

₹ 48,111

LondonSan Francisco

LHR - SFO

LHRSFO

London Heathrow

Fri 14/11

11:40-14:40

Nonstop11h 00m

San Francisco

Sat 15/11

00:45-07:05

1 stop22h 20m

₹ 48,111

Flights are sorted by cheapest return flights first.

Deals found on 12/9

Showing 1-10 of 41 results

...

Best time to book a flight from London to San Francisco

Have a flexible travel schedule? Discover the best time to fly to San Francisco from London with our price prediction graph.

Estimated return price

Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Cheapflights Insights

Everything you need to know about your flight from London to San Francisco

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

To ensure you get the cheapest price possible for a flight from London to San Francisco, you should look to book at least 86 days in advance of your intended travel date. The price of your flight may increase if you delay and leave booking until a week or so before departure.

What is the cheapest month to book a flight from London to San Francisco?

Currently, October is the cheapest month in which you can book a flight from London to San Francisco (average of ₹ 982). Flying from London to San Francisco in July is currently the most expensive (average of ₹ 1,187). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

What is the cheapest time of day to fly from LON to SFO?

A simple way to save on the total cost of your ticket is to fly from London to San Francisco at midday. If you’re flexible enough to do this you can expect to save up to 14% on your trip compared to booking a flight in the morning.

Weekly flight availability from London to San Francisco

The most flights from LON to SFO are scheduled on a Monday (42 on average). You will have fewer flight options on Monday, which is when the least amount of flights are scheduled (42 on average).

Reviews of airlines servicing San Francisco

Read through reviews of airlines operating flights from London to San Francisco, such as United Airlines. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.

United Airlines

7.4

Good

8,931 reviews

Check prices

Reviews

1 / 20

10.0

Excellent

Anonymous,Sept 2025

FRA - SFO

Lufthansa was amazing, I wish United States based airlines operated like them.

United Airlines

7.4

Good

8,931 reviews

United Airlines

7.4

Good

8,931 reviews

Check prices

Reviews

1 / 20

10.0

Excellent

Anonymous,Sept 2025

FRA - SFO

Lufthansa was amazing, I wish United States based airlines operated like them.

Related info for your journey

What airport do you fly into for flights to San Francisco from London?
San Francisco (SFO), located 19.0 km from the city centre, is the airport you fly into when you book flights from London to San Francisco. 2 airlines have flights to San Francisco from London on a regular basis. Booking flights from London to San Francisco should not be difficult; the airport handles an average of 42 inbound flights from London per day.
How long is the flight from London to San Francisco?
Airlines like United Airlines, Delta, and TAP AIR PORTUGAL fly from London to San Francisco in about 11h. The time it takes to get you to your destination can typically vary by up to 19h 05m. The distance from London to San Francisco is about 8610 km. Both multi-stop and direct flights can be found to your destination and back.
What are the cheapest airlines flying from London to San Francisco round-trip?
Our cheapest airline available from London to San Francisco is British Airways. Our recent data shows that you can find tickets from as low as ₹ 46,260 on this airline. An additional option worth looking into is Virgin Atlantic, starting at ₹ 51,583. Users have found that British Airways is 21% cheaper than the other options available to this destination.
What are the cheapest airlines to fly from London to San Francisco one-way?
The cheapet airlines for a one-way flight from London to San Francisco are British Airways (₹ 42,284), Delta (₹ 43,344), and KLM (₹ 44,138).
What are the most reliable airlines from London to San Francisco?
No one likes to see their flight delayed. When booking a flight from London to San Francisco consider choosing KLM(86%), Air France(86%) or Delta(86%), as they are the most reliable in getting you off to your destination on time.
Can I find deals for flights from London to San Francisco that include hotel bookings?
Yes. In addition to deals on London to San Francisco flights, Cheapflights offers holiday packages that include both flights and hotel.
How can I find direct flights from London to San Francisco?
After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from London to San Francisco.
Can I find deals for business class flights from London to San Francisco?
Yes. Cheapflights offers flight deals from London to San Francisco by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.
What is the cheapest month to book a flight from London to San Francisco?
Currently, October is the cheapest month in which you can book a flight from London to San Francisco (average of ₹ 982). Flying from London to San Francisco in July is currently the most expensive (average of ₹ 1,187). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

See more FAQs

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Top 2 airlines flying from London to San Francisco

Airline	Cheapest	Average	Flexibility	On-time
British Airways	Cheapest₹ 46,260	Average₹ 54,246	FlexibilityNo cancel fee	On-time70%	Search British Airways flights
Virgin Atlantic	Cheapest₹ 51,583	Average₹ 53,833	FlexibilityNo cancel fee	On-time72%	Search Virgin Atlantic flights

Fly with Cheapflights

How does Cheapflights help users find flights from London to San Francisco?

Deals for London to San Francisco flights are sourced from 900+ travel sites when you use Cheapflights. When all flight results come back, Cheapflights lets you sort and filter flights using different criteria to choose better, like price, airport, cabin class, and plenty of other options.

Why should you use Cheapflights to find cheap flight tickets from London to San Francisco?

It’s simple! Cheapflights, which is free to use for everyone, saves millions of users time and money every year by helping them find the cheapest and most suitable flights from London to San Francisco.

Can Cheapflights find flights from London to San Francisco with no change fees?

Certainly. Search results for flights to San Francisco from London shown to you on Cheapflights can be narrowed down with different useful search filters, which includes flexible booking options.

Can Cheapflights notify me if prices for flights from London to San Francisco become cheaper?

Of course! You can now track prices for flights from London to San Francisco and get an alert from Cheapflights when they change. Have a valid email address ready and click the bell icon next to the flight deals above to set up your price alerts.

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Cheap flights from London to San Francisco from ₹ 41,755

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 22/2. Fares are subject to change and may not be available on all flights or dates of travel.

Cheapflights Tip: The best prices from London to San Francisco are usually found in February or September, booked 86 days in advance, depart on a Wednesday or Saturday and return on a Thursday

Cheap flight deals from London to San Francisco

Round-trip from

One-way from

Popular in

Cheapest in

Average price

Find flight deals from London to San Francisco

Cheapest flights from London to San FranciscoExplore the most affordable flight options available from London to San Francisco. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 14 September 2025.

Explore the most affordable flight options available from London to San Francisco. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 14 September 2025.

Cheapflights Fare Finder

Use the filters below to find and compare flights from London to San Francisco that are best for you.

Best time to book a flight from London to San Francisco

Have a flexible travel schedule? Discover the best time to fly to San Francisco from London with our price prediction graph.

Cheapflights Insights

Everything you need to know about your flight from London to San Francisco

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

Use this chart to determine the optimal time to book a return flight from London to San Francisco. Price data was last updated on 12 September 2025.

What is the cheapest month to book a flight from London to San Francisco?

What is the cheapest time of day to fly from LON to SFO?

Find hourly flight availability from London to San Francisco. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated 14 September 2025.

Weekly flight availability from London to San Francisco

Reviews of airlines servicing San Francisco

Read through reviews of airlines operating flights from London to San Francisco, such as United Airlines. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.

Related info for your journey

Find useful and relevant information for your journey from London to San Francisco. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

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

How long is the flight from London to San Francisco?

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

What are the cheapest airlines to fly from London to San Francisco one-way?

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

Can I find deals for flights from London to San Francisco that include hotel bookings?

How can I find direct flights from London to San Francisco?

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Cheapest flights from London to San Francisco
Explore the most affordable flight options available from London to San Francisco. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 14 September 2025.