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Cheap flights from London to San Francisco from $796

This is the cheapest retur flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 2/2. Fares are subject to change and may not be available on all flights or dates of travel.
LON — SFO
8 Dec — 15 Dec1
1 adult

The best prices from London to San Francisco are usually found in February or November, booked 86 days in advance, depart on a Wednesday or Monday and return on a Monday

Find flights from London to San Francisco within your budget

Customise your flight search to find flights from London to San Francisco that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, Cheapflights users made 705,290 searches. Data last updated 3 December 2024.

Fly from

Any airport

Fly to

Any airport

Route

Depart

Return

Price

LondonSan Francisco

LHR - SFO

LHRSFO

London Heathrow

Sun 2/2

21:05-15:40

2 stops26h 35m

San Francisco

Sun 16/2

17:30-21:35

2 stops20h 05m

$796

LondonSan Francisco

LGW - SFO

LGWSFO

London Gatwick

Fri 17/1

16:40-14:55

1 stop30h 15m

San Francisco

Fri 24/1

19:15-08:20

2 stops29h 05m

$807

LondonSan Francisco

LHR - SFO

LHRSFO

London Heathrow

Mon 13/1

13:00-20:46

1 stop15h 46m

San Francisco

Mon 27/1

12:50-07:25

Nonstop10h 35m

$841

LondonSan Francisco

LHR - SFO

LHRSFO

London Heathrow

Mon 13/1

07:40-14:50

1 stop15h 10m

San Francisco

Mon 27/1

15:20-13:30

1 stop14h 10m

$853

LondonSan Francisco

LGW - SFO

LGWSFO

London Gatwick

Wed 5/2

07:55-20:10

1 stop20h 15m

San Francisco

Mon 17/2

19:55-07:10

1 stop27h 15m

$854

LondonSan Francisco

LHR - SFO

LHRSFO

London Heathrow

Mon 13/1

13:45-16:55

Nonstop11h 10m

San Francisco

Mon 27/1

12:50-07:25

Nonstop10h 35m

$864

LondonSan Francisco

LGW - SFO

LGWSFO

London Gatwick

Tue 11/2

18:45-16:25

1 stop29h 40m

San Francisco

Tue 18/2

19:25-17:50

1 stop14h 25m

$887

LondonSan Francisco

LHR - SFO

LHRSFO

London Heathrow

Wed 15/1

08:55-16:25

1 stop15h 30m

San Francisco

Thu 30/1

19:25-17:50

1 stop14h 25m

$893

LondonSan Francisco

LHR - SFO

LHRSFO

London Heathrow

Thu 16/1

08:55-16:25

1 stop15h 30m

San Francisco

Wed 29/1

12:50-07:25

Nonstop10h 35m

$907

LondonSan Francisco

LHR - SFO

LHRSFO

London Heathrow

Fri 9/5

19:50-14:20

1 stop26h 30m

San Francisco

Sat 24/5

16:20-22:00

1 stop21h 40m

$915

Flights are sorted by cheapest return flights first.

Deals found on 1/12

Showing 1-10 of 58 results
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Cheap flight deals from London to San Francisco

Discover tips and strategies to find the most affordable flight options for your journey from London (LON) to San Francisco (SFO). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated 3 December 2024.

Round-trip from

$796

Popular in

July

Cheapest in

February

Average price

$1,121
Scandinavian Airlines
  • Scandinavian Airlines
  • 2/2-16/2
  • 4 total stops
  • 46h 40m total
  • London to San Francisco
High demand for flights, 26% potential price rise
Best time to find cheap flights, 20% potential price drop
Average for round-trip flights in December 2024

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 3 December 2024.

Mon 9/1221:30LGW - SFO
2 stops49h 10mTAP AIR PORTUGAL
Mon 3/216:40SFO - LGW
1 stop15h 05mTAP AIR PORTUGAL
Deal found 2/12$807
Sun 8/1219:55LHR - SFO
1 stop26h 50mTAP AIR PORTUGAL
Sat 8/216:40SFO - LHR
1 stop16h 50mTAP AIR PORTUGAL
Deal found 2/12$858
Sun 15/1219:30LHR - SFO
1 stop28h 10mScandinavian Airlines
Thu 9/117:30SFO - LHR
1 stop17h 00mScandinavian Airlines
Deal found 2/12$878
Sun 8/1206:30LHR - SFO
1 stop13h 20mDelta
Sat 8/216:40SFO - LHR
Nonstop10h 15mDelta
Deal found 2/12$939
Sat 7/1206:30LHR - SFO
1 stop13h 20mKLM
Fri 7/212:09SFO - LHR
1 stop14h 26mKLM
Deal found 2/12$955
Sun 8/1211:45LHR - SFO
Nonstop11h 15mBritish Airways
Mon 10/217:30SFO - LHR
Nonstop10h 30mBritish Airways
Deal found 2/12$956
Sat 7/1210:05LHR - SFO
Nonstop11h 10mUnited Airlines
Wed 5/217:25SFO - LHR
Nonstop10h 35mUnited Airlines
Deal found 2/12$965
Tue 10/1215:35LHR - SFO
1 stop16h 40mFinnair
Wed 5/217:30SFO - LHR
Nonstop10h 30mFinnair
Deal found 2/12$975
Wed 25/1210:05LHR - SFO
Nonstop11h 10mAustrian Airlines
Sun 12/112:50SFO - LHR
Nonstop10h 35mAustrian Airlines
Deal found 2/12$1,002
Sun 8/1206:30LHR - SFO
1 stop14h 05mLufthansa
Wed 5/212:50SFO - LHR
Nonstop10h 35mLufthansa
Deal found 2/12$1,016
Sat 7/1218:45LGW - SFO
1 stop29h 40mSWISS
Mon 13/119:25SFO - LGW
1 stop14h 25mSWISS
Deal found 2/12$1,039
Mon 9/1217:05LCY - SFO
1 stop26h 45mVirgin Atlantic
Thu 6/213:50SFO - LCY
1 stop20h 35mVirgin Atlantic
Deal found 2/12$1,039

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.

Travel insights for flights from London to San Francisco

Get recent, data-driven insights about flights from London to San Francisco including ideal travel times, pricing trends, and more.

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 22 November 2024.

The best time to book flights from London to San Francisco is 86 days before your desired departure date. The cost of your flight will likely increase significantly if you book two weeks in advance of your flight.

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

Currently, March is the cheapest month in which you can book a flight from London to San Francisco (average of $876). Flying from London to San Francisco in December is currently the most expensive (average of $1,183). 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?

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 3 December 2024.

Unlike in the afternoon, when flights are generally more expensive, you can save up to 12% on flights from London to San Francisco by exploring options for tickets at midday.

Weekly flight availability from London to San Francisco

Explore weekly flight availability from London to San Francisco. Discover flights operating on different days of the week, giving you the flexibility to choose a travel day that best fits your plans. Compare info to find the most convenient option for your journey. Data last updated 3 December 2024.

The most flights from LON to SFO are scheduled on a Monday (31 on average). You will have fewer flight options on Monday, which is when the least amount of flights are scheduled (31 on average).

Rainfall in San Francisco by month

Plan your trip to San Francisco by taking into account the average rainfall totals by month.

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.

Temperature in San Francisco by month

Plan your trip to San Francisco by taking into account the average temperature totals by month.

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).

Reviews of airlines servicing San Francisco

Get insights into the airlines that provide service to San Francisco. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to San Francisco. Reviews last updated 3 December 2024.
Peruse reviews from past customers who have flown with Finnair, Delta and SWISS from London to San Francisco to help guide your decision. You can also see how each airline stacks up in terms of entertainment options, comfort, food, crew/service, and boarding process.
8.0
Very Good
8,698 reviews

Comfort

7.9

Entertainment

7.9

Food

7.3

Crew

8.6

Boarding

8.2

Overall

8.0

Reviews

1 / 10

Delta has consistently been the best U.S. airline for my travels and this flight was no exception

8.0
Very Good
8,698 reviews
8.0
Very Good
8,698 reviews

Comfort

7.9

Entertainment

7.9

Food

7.3

Crew

8.6

Boarding

8.2

Overall

8.0

Reviews

1 / 10

Delta has consistently been the best U.S. airline for my travels and this flight was no exception

7.8
Good
1,343 reviews
8.0
Very Good
8,698 reviews

Comfort

7.9

Entertainment

7.9

Food

7.3

Crew

8.6

Boarding

8.2

Overall

8.0

Reviews

1 / 10

Delta has consistently been the best U.S. airline for my travels and this flight was no exception

7.8
Good
391 reviews
8.0
Very Good
8,698 reviews

Comfort

7.9

Entertainment

7.9

Food

7.3

Crew

8.6

Boarding

8.2

Overall

8.0

Reviews

1 / 10

Delta has consistently been the best U.S. airline for my travels and this flight was no exception

7.7
Good
1,297 reviews
8.0
Very Good
8,698 reviews

Comfort

7.9

Entertainment

7.9

Food

7.3

Crew

8.6

Boarding

8.2

Overall

8.0

Reviews

1 / 10

Delta has consistently been the best U.S. airline for my travels and this flight was no exception

7.6
Good
1,628 reviews
8.0
Very Good
8,698 reviews

Comfort

7.9

Entertainment

7.9

Food

7.3

Crew

8.6

Boarding

8.2

Overall

8.0

Reviews

1 / 10

Delta has consistently been the best U.S. airline for my travels and this flight was no exception

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?

    Located just 19.0 km from the city centre, San Francisco is the airport most travellers will use when flying to San Francisco from London. Booking flights from London to San Francisco (SFO) should be relatively easy as there are 31 daily inbound flights from London from 0 different airlines.

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

    Cheapflights users have booked flights from London to San Francisco round-trip from $796. Other airlines that can offer you cheap pricing are TAP AIR PORTUGAL, from $807, and United Airlines, from $841. Scandinavian Airlines is 22% cheaper than the average price of flights available within the next 90 days 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 TAP AIR PORTUGAL ($862), WestJet ($1,112), and JetBlue ($1,147).

  • What are the most popular routes from London to San Francisco?

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

    Before booking your flight to San Francisco from London, have a look at the most reliable airlines to get you to your destination on time: Air Canada (73%), Austrian Airlines (73%), United Airlines( 73%).

  • What are the cheapest flights from London to San Francisco?

    Looking for the cheapest flight from London to San Francisco? While on average our users pay $984, our data indicates the cheapest price to be $970. The most popular route (London Stansted - San Francisco), is priced around $677.

  • 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, March is the cheapest month in which you can book a flight from London to San Francisco (average of $876). Flying from London to San Francisco in December is currently the most expensive (average of $1,183). 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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Alternative routes for London to San Francisco

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

Cheapflights goes through 900+ travel sites to look for the best flight deals for flights from London to San Francisco. Too many options? Cheapflights also provides filters for things like airlines, price ranges, and number of stops to help you make a decision easily.

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

By finding flights from multiple airlines and providers at completely no cost, Cheapflights helps millions of users like you annually find the best flights to San Francisco from London.

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?

Yes, Cheapflights has a feature called Price Alert, which notifies users when flight prices change. Track prices for your flight to San Francisco from London today and book when prices fit your budget.

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