San Francisco

$280+ Cheap flights from London (LON) to San Francisco (SFO)

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 3/31. Fares are subject to change and may not be available on all flights or dates of travel.
LON — SFO
Nov 5 — Nov 121
1 adult
Tue 11/5
Tue 11/12
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Find cheap flights from London to San Francisco with Cheapflights

1. Tell us where you want to go
Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”
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The best prices from London to San Francisco are usually found in February or November, booked 24 days in advance, depart on a Thursday or Tuesday and return on a Wednesday

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 October 31, 2024.

Most accurate provider

AranGrant
3 stars

Most trusted provider

AranGrant
3 stars

Popular in

August

Cheapest in

February

Round-trip from

$441
(Fly & Visit Rome)

One-way from

$280
(Booking.com)
Provider with most accurate pricing for London (LON)-San Francisco flight deals.
Provider most trusted by Cheapflights users for London (LON)-San Francisco flights.
High demand for flights, 27% potential price rise
Best time to find cheap flights, 19% potential price drop
From London (LON) to San Francisco
One-way flight from London (LON) to San Francisco

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 October 31, 2024.

This Air Canada deal was found by Cheapflights users on 10/31. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/109:30 amLHR - SFO
2 stops19h 29mMultiple Airlines
Tue 1/146:38 amSFO - LHR
2 stops15h 52mMultiple Airlines
Deal found 10/31$494
This Gotogate deal was found by Cheapflights users on 10/30. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Gotogate is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/141:45 pmLHR - SFO
Nonstop11h 10mAustrian Airlines
Fri 11/2912:50 pmSFO - LHR
Nonstop10h 35mAustrian Airlines
Deal found 10/30$495
This Delta deal was found by Cheapflights users on 10/31. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 12/711:40 amLHR - SFO
Nonstop11h 05mDelta
Sun 12/812:38 amSFO - LHR
1 stop23h 17mDelta
Deal found 10/31$496
This Lufthansa deal was found by Cheapflights users on 10/30. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Lufthansa is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/69:30 amLHR - SFO
1 stop14h 30mLufthansa
Wed 11/1312:50 pmSFO - LHR
Nonstop10h 35mLufthansa
Deal found 10/30$499
This United Airlines deal was found by Cheapflights users on 10/30. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/61:00 pmLHR - SFO
1 stop15h 11mUnited Airlines
Sun 11/1710:45 pmSFO - LHR
1 stop13h 50mUnited Airlines
Deal found 10/30$501
This Gotogate deal was found by Cheapflights users on 10/31. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Gotogate is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 11/249:25 pmLGW - SFO
2 stops25h 20mTAP AIR PORTUGAL
Mon 12/94:40 pmSFO - LGW
1 stop15h 05mTAP AIR PORTUGAL
Deal found 10/31$501
This Air Canada deal was found by Cheapflights users on 10/30. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/61:00 pmLHR - SFO
1 stop15h 11mAir Canada
Wed 11/138:30 amSFO - LHR
2 stops19h 20mAir Canada
Deal found 10/30$506
This SWISS deal was found by Cheapflights users on 10/30. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure SWISS is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 11/186:45 pmLGW - SFO
1 stop29h 40mSWISS
Sun 12/17:25 pmSFO - LGW
1 stop14h 25mSWISS
Deal found 10/30$511
This Kiwi.com deal was found by Cheapflights users on 10/31. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 12/69:25 amLCY - SFO
1 stop15h 00mSWISS
Sun 12/87:25 pmSFO - LCY
1 stop13h 40mSWISS
Deal found 10/31$512
This Netflights deal was found by Cheapflights users on 10/29. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Netflights is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/278:40 amLCY - SFO
2 stops22h 52mVirgin Atlantic
Sun 12/81:50 pmSFO - LCY
1 stop18h 45mVirgin Atlantic
Deal found 10/29$513
This SWISS deal was found by Cheapflights users on 10/31. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure SWISS is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 11/238:55 amLHR - SFO
1 stop15h 30mSWISS
Sun 12/17:25 pmSFO - LHR
1 stop15h 50mSWISS
Deal found 10/31$514
This oojo deal was found by Cheapflights users on 10/30. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/410:05 amLHR - SFO
Nonstop11h 10mBrussels Airlines
Wed 12/115:25 pmSFO - LHR
Nonstop10h 35mBrussels Airlines
Deal found 10/30$515

Find flights from London to San Francisco within your budget

Customize 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 2,570,725 searches. Data last updated October 31, 2024.

Fly from

Any airport

Fly to

Any airport

Route

Depart

Return

Price

LondonSan Francisco

STN - SFO

STNSFO

London Stansted

Sun 12/15

6:00 am-2:45 pm

2 stops40h 45m

$558

LondonSan Francisco

LCY - SFO

LCYSFO

London City

Sat 11/23

8:40 am-8:33 pm

2 stops19h 53m

$558

LondonSan Francisco

LHR - SFO

LHRSFO

London Heathrow

Tue 11/12

11:40 am-2:45 pm

Nonstop11h 05m

$559

LondonSan Francisco

LGW - SFO

LGWSFO

London Gatwick

Thu 11/7

10:10 am-2:15 pm

2 stops36h 05m

$563

LondonSan Francisco

LHR - SFO

LHRSFO

London Heathrow

Wed 11/20

11:05 am-2:15 pm

Nonstop11h 10m

$565

LondonSan Francisco

LHR - SFO

LHRSFO

London Heathrow

Sun 11/10

11:40 am-2:45 pm

Nonstop11h 05m

$568

LondonSan Francisco

LHR - SFO

LHRSFO

London Heathrow

Sat 12/14

6:40 am-3:40 pm

2 stops41h 00m

$569

LondonSan Francisco

LCY - SFO

LCYSFO

London City

Mon 11/25

9:15 am-4:25 pm

1 stop15h 10m

$569

LondonSan Francisco

LHR - SFO

LHRSFO

London Heathrow

Tue 12/3

11:45 am-3:00 pm

Nonstop11h 15m

$572

LondonSan Francisco

LHR - SFO

LHRSFO

London Heathrow

Wed 11/20

1:45 pm-4:55 pm

Nonstop11h 10m

$608

Flights are sorted by cheapest first

Deals found on 10/31

Showing 1-10 of 60 results
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Compare providers for flights from London to San Francisco

Provider information is updated monthly. Please note that these providers often have deals for this flight, but the availability may vary on a day-by-day basis on Cheapflights.
Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from London to San Francisco in October.
ProviderPrice AccuracyTrust Score*Cancellation Policy
ExpediaPrice Accuracy1 starTrust Score*3 starsCancellation PolicyAirline Policy
eDreamsPrice Accuracy3 starsTrust Score*3 starsCancellation PolicyAirline Policy
AranGrantPrice Accuracy3 starsTrust Score*3 starsCancellation PolicyAirline Policy
FlightHubPrice Accuracy3 starsTrust Score*3 starsCancellation PolicyAirline Policy
CheapflightsfaresPrice Accuracy3 starsTrust Score*1 starCancellation PolicyAirline Policy
ScholarTripPrice Accuracy3 starsTrust Score*3 starsCancellation PolicyAirline Policy
KAYAKPrice Accuracy1 starTrust Score*3 starsCancellation PolicyAirline Policy
PricelinePrice Accuracy1 starTrust Score*3 starsCancellation PolicyAirline Policy
CombigoPrice Accuracy3 starsTrust Score*3 starsCancellation PolicyNo Information

*The Trust Score is based on feedback from users after their booking experience. It measures overall satisfaction, helping us identify issues like hidden fees, problems during the ticketing process, and the quality of customer service. This score is our best indicator of the provider's quality and reliability.

  • Most accurate provider: When it comes to deals on London-San Francisco flights, users find the pricing of AranGrant to be most consistent on Cheapflights vs. AranGrant Users can find the same prices on London-San Francisco flight deals on Cheapflights vs. AranGrant >95% of the time. Price accuracy is based on data collected from London-San Francisco flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on London-San Francisco flights, Cheapflights users trust AranGrant the most. AranGrant has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for London-San Francisco flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.

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 round-trip 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 round-trip flight from London to San Francisco. Price data was last updated on October 25, 2024.

The price you pay for your flight from London to San Francisco may vary depending on when you book. For the best chance of a lower fare, look to book 24 days in advance of your trip. Fares are likely to increase a fortnight or so before your departure date.

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

Currently, January is the cheapest month in which you can book a flight from London to San Francisco (average of $276). Flying from London to San Francisco in June is currently the most expensive (average of $382). 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 October 31, 2024.

It’s optimal to fly from London to San Francisco at noon. By choosing this option you can save up to 5% on the cost of your flight, compared to a flight in the afternoon.

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

Use this chart to determine the cheapest time to fly round-trip from London to San Francisco. Price data was last updated on April 28, 2024.

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

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 - 4.4 inches per month. January is typically the wettest month, when rainfall can reach 4.4 in. July is typically the driest time to visit San Francisco when rainfall is around 0.0 in.

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 62.6 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 51.8 F).

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 October 31, 2024.
See what other customers who have flown with KLM, ITA Airways and SWISS from London to San Francisco have to say. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.
8.1
Very good
535 reviews

Boarding

8.3

Crew

8.6

Comfort

8.0

Food

7.5

Overall

8.1

Entertainment

7.6

Reviews

1 / 10

Nice unfortunately food sucks especially when you require a vegetarian with dairy and get a vegan meal- they need improvement in that area.

8.1
Very good
535 reviews
8.1
Very good
535 reviews

Boarding

8.3

Crew

8.6

Comfort

8.0

Food

7.5

Overall

8.1

Entertainment

7.6

Reviews

1 / 10

Nice unfortunately food sucks especially when you require a vegetarian with dairy and get a vegan meal- they need improvement in that area.

8.0
Very good
8,835 reviews
8.1
Very good
535 reviews

Boarding

8.3

Crew

8.6

Comfort

8.0

Food

7.5

Overall

8.1

Entertainment

7.6

Reviews

1 / 10

Nice unfortunately food sucks especially when you require a vegetarian with dairy and get a vegan meal- they need improvement in that area.

7.8
Good
1,352 reviews
8.1
Very good
535 reviews

Boarding

8.3

Crew

8.6

Comfort

8.0

Food

7.5

Overall

8.1

Entertainment

7.6

Reviews

1 / 10

Nice unfortunately food sucks especially when you require a vegetarian with dairy and get a vegan meal- they need improvement in that area.

7.7
Good
1,318 reviews
8.1
Very good
535 reviews

Boarding

8.3

Crew

8.6

Comfort

8.0

Food

7.5

Overall

8.1

Entertainment

7.6

Reviews

1 / 10

Nice unfortunately food sucks especially when you require a vegetarian with dairy and get a vegan meal- they need improvement in that area.

7.7
Good
831 reviews
8.1
Very good
535 reviews

Boarding

8.3

Crew

8.6

Comfort

8.0

Food

7.5

Overall

8.1

Entertainment

7.6

Reviews

1 / 10

Nice unfortunately food sucks especially when you require a vegetarian with dairy and get a vegan meal- they need improvement in that area.

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 11.8 mi from the city center, San Francisco is the airport most travelers will use when flying to San Francisco from London. Booking flights from London to San Francisco (SFO) should be relatively easy as there are 26 daily inbound flights from London from 12 different airlines.

  • Can I find flights from London to San Francisco for under $500 on Cheapflights?

    Yes, there are multiple flights from London to San Francisco for under $500. The cheapest flight booked recently is on TAP AIR PORTUGAL for just $441, but on average you can expect to pay $482.

  • Are there nonstop flights from London to San Francisco for under $500 on Cheapflights?

    Cheapflights has at least 13 direct flights from London to San Francisco under $500. A good price for a nonstop flight from London to San Francisco is less than $490.

  • Are there last-minute flights available from London to San Francisco for under $500?

    There are currently 20+ open flights from London to San Francisco within the next 7 days for less than $500.

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

    TAP AIR PORTUGAL, at $441, was found to be the cheapest airline from London to San Francisco.Alternate airlines to your destination round-trip include KLM and Virgin Atlantic. You may be able to fly from London to San Francisco for 33% less than the average price by searching for these airlines.

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

    The cheapest airline one-way is Vueling, with whom users have recently found tickets for as low as $280. However, be on the lookout for offers from WestJet and TAP AIR PORTUGAL, as they are both options that can get you from London to San Francisco for a low price.

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

  • 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 Air Canada (70%), Austrian Airlines (70%) or United Airlines (70%) as they are the most reliable in getting you off to your destination on time.

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

    While on average a flight from London to San Francisco is generally $1,431, our data shows the cheapest flight currently is $537. When looking at the most popular route, (London Heathrow - San Francisco), you can expect to pay $418 for that flight.

  • What does LHR to SFO mean?

    Great question - LHR to SFO just means London Heathrow Airport to San Francisco Airport. Now you’ll know what these unique codes when you look for flights! London Gatwick Airport (LGW), London Stansted Airport (STN), London Luton Airport (LTN), London City Airport (LCY), London Southend Airport (SEN) are some additional IATA codes for airports related to your trip.

  • Can I find deals for flights from London to San Francisco that include extra baggage allowance?

    The amount of baggage you can bring on your London to San Francisco flight depends on the airline and the type of fare you've chosen. After entering your flight details, you'll be able to view the specific baggage policies for each deal in the search results. Keep in mind that certain deals may offer additional baggage allowance.

  • Can I find deals on flights from London to San Francisco with specific airlines?

    Yes, Cheapflights allows you to browse and filter London to San Francisco flight deals by airline. After entering your origin and destination, use the available filters to view flights offered by airlines.

  • 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 vacation 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.

  • Can I find deals for flights from London to San Francisco that allow pets onboard?

    Many airlines flying from London to San Francisco offer the option to travel with pets. After selecting a flight deal, you can find more information about the airline's pet policy on their official website or by contacting the airline directly. Please note that additional fees and restrictions may apply.

  • Can I find deals on last-minute flights from London to San Francisco?

    Yes, you can often find last-minute deals on London to San Francisco flights on Cheapflights. However, these deals can vary and may not always be available. We recommend checking back frequently or signing up for price alerts for the most up-to-date deals.

  • How recently were the London to San Francisco flight deals updated?

    The London to San Francisco flight deals you see on this page were last updated on 10/31.

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

    Currently, January is the cheapest month in which you can book a flight from London to San Francisco (average of $276). Flying from London to San Francisco in June is currently the most expensive (average of $382). 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

Browse thousands of different options on Cheapflights for your next trip

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Top 10 airlines flying from London to San Francisco

Discover the top 10 airlines that operate flights from London to San Francisco. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 2,570,725 searches. Data last updated October 31, 2024.
AirlineCheapestAverageFlexibilityOn-time
Scandinavian AirlinesCheapest$415Average$634FlexibilityNo cancel feeOn-time77%
FinnairCheapest$415Average$571FlexibilityNo cancel feeOn-time76%
British AirwaysCheapest$498Average$688FlexibilityNo cancel feeOn-time70%
LufthansaCheapest$500Average$639FlexibilityNo cancel feeOn-time76%
IberiaCheapest$508Average$717FlexibilityNo cancel feeOn-time77%
DeltaCheapest$519Average$712FlexibilityNo cancel feeOn-timeN/A
Virgin AtlanticCheapest$537Average$732FlexibilityNo cancel feeOn-time72%
United AirlinesCheapest$547Average$724FlexibilityNo cancel feeOn-time69%
American AirlinesCheapest$552Average$682FlexibilityNo cancel feeOn-time71%
Austrian AirlinesCheapest$567Average$667FlexibilityNo cancel feeOn-time78%
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