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Cheap flights from London to San Francisco from £247

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 13/1. Fares are subject to change and may not be available on all flights or dates of travel.
LON — SFO
27 Oct — 3 Nov1
1 adult

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 Sunday

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 22 October 2024.

Round-trip from

£327

One-way from

£247

Popular in

August

Cheapest in

February
TAP AIR PORTUGAL
  • TAP AIR PORTUGAL
  • 18/2-28/2
  • 2 total stops
  • 52h 25m total
  • London to San Francisco
13/1
  • 13/1
  • 3 total stops
  • 48h 29m total
  • London to San Francisco
High demand for flights, 27% potential price rise
Best time to find cheap flights, 19% potential price drop

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 22 October 2024.

Thu 5/1206:40LHR - SFO
1 stop17h 00mScandinavian Airlines
Mon 9/1217:30SFO - LHR
2 stops20h 05mScandinavian Airlines
Deal found 20/10£380
Tue 19/1118:30LHR - SFO
1 stop28h 10mTAP AIR PORTUGAL
Wed 27/1116:35SFO - LHR
1 stop21h 00mTAP AIR PORTUGAL
Deal found 20/10£382
Thu 21/1115:55LGW - SFO
1 stop30h 20mTAP AIR PORTUGAL
Wed 4/1216:35SFO - LGW
1 stop33h 15mTAP AIR PORTUGAL
Deal found 21/10£383
Mon 4/1106:30LHR - SFO
1 stop13h 20mVirgin Atlantic
Sun 10/1113:50SFO - LHR
1 stop13h 50mVirgin Atlantic
Deal found 21/10£399
Tue 5/1111:40LHR - SFO
Nonstop11h 05mAir France
Tue 19/1111:59SFO - LHR
1 stop14h 36mAir France
Deal found 21/10£403
Wed 6/1115:35LHR - SFO
1 stop16h 16mFinnair
Thu 14/1113:22SFO - LHR
1 stop14h 18mFinnair
Deal found 21/10£406
Thu 7/1106:30LHR - SFO
1 stop13h 20mDelta
Sun 17/1116:40SFO - LHR
Nonstop10h 15mDelta
Deal found 21/10£418
Wed 4/1211:45LHR - SFO
Nonstop11h 15mBritish Airways
Mon 9/1217:30SFO - LHR
Nonstop10h 30mBritish Airways
Deal found 21/10£419
Tue 5/1115:00LGW - SFO
1 stop16h 51mAmerican Airlines
Tue 12/1110:25SFO - LGW
1 stop13h 40mAmerican Airlines
Deal found 21/10£422
Tue 5/1111:45LHR - SFO
Nonstop11h 15mAmerican Airlines
Wed 13/1111:48SFO - LHR
1 stop13h 32mAmerican Airlines
Deal found 21/10£425
Sat 7/1208:40LCY - SFO
2 stops19h 49mVirgin Atlantic
Wed 11/1206:00SFO - LCY
2 stops27h 40mVirgin Atlantic
Deal found 21/10£438
Wed 4/1208:30LHR - SFO
1 stop15h 30mLufthansa
Wed 11/1217:25SFO - LHR
Nonstop10h 35mLufthansa
Deal found 20/10£439

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 1,032,068 searches. Data last updated 22 October 2024.

Fly from

Any airport

Fly to

Any airport

Budget

£327 - £465

Route

Depart

Return

Price

London HeathrowSan Francisco

LHR - SFO

LHRSFO

London Heathrow

Tue 18/2

1 stop33h 00m

San Francisco

Fri 28/2

1 stop19h 25m

£327

London HeathrowSan Francisco

LHR - SFO

LHRSFO

London Heathrow

Wed 4/12

1 stop27h 10m

San Francisco

Mon 9/12

1 stop14h 30m

£369

London HeathrowSan Francisco

LHR - SFO

LHRSFO

London Heathrow

Wed 4/12

1 stop23h 25m

San Francisco

Mon 9/12

Nonstop10h 15m

£396

London HeathrowSan Francisco

LHR - SFO

LHRSFO

London Heathrow

Sun 12/1

2 stops40h 50m

San Francisco

Tue 21/1

Nonstop10h 30m

£397

London HeathrowSan Francisco

LHR - SFO

LHRSFO

London Heathrow

Mon 4/11

1 stop13h 20m

San Francisco

Sun 10/11

1 stop13h 50m

£399

London HeathrowSan Francisco

LHR - SFO

LHRSFO

London Heathrow

Tue 5/11

Nonstop11h 05m

San Francisco

Tue 19/11

1 stop14h 36m

£403

London HeathrowSan Francisco

LHR - SFO

LHRSFO

London Heathrow

Fri 6/12

1 stop13h 20m

San Francisco

Thu 12/12

1 stop22h 40m

£414

London HeathrowSan Francisco

LHR - SFO

LHRSFO

London Heathrow

Sun 24/11

Nonstop11h 15m

San Francisco

Tue 10/12

Nonstop10h 30m

£415

London GatwickSan Francisco

LGW - SFO

LGWSFO

London Gatwick

Tue 5/11

1 stop16h 51m

San Francisco

Wed 13/11

1 stop13h 40m

£422

London HeathrowSan Francisco

LHR - SFO

LHRSFO

London Heathrow

Wed 20/11

1 stop14h 30m

San Francisco

Wed 27/11

Nonstop10h 35m

£442

London GatwickSan Francisco

LGW - SFO

LGWSFO

London Gatwick

Thu 21/11

2 stops31h 20m

San Francisco

Sat 30/11

2 stops21h 55m

£443

London HeathrowSan Francisco

LHR - SFO

LHRSFO

London Heathrow

Wed 6/11

Nonstop11h 10m

San Francisco

Wed 13/11

Nonstop10h 35m

£465

Flights are sorted by cheapest first

Deals found on 21/10

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 18 October 2024.

To ensure you get the cheapest price possible for a flight from London to San Francisco, you should look to book at least 24 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, February is the cheapest month in which you can book a flight from London to San Francisco (average of £531). Flying from London to San Francisco in July is currently the most expensive (average of £734). 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 22 October 2024.

Unlike in the afternoon, when flights are generally more expensive, you can save up to 11% on flights from London to San Francisco by exploring options for tickets at midday.

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

Use this chart to determine the cheapest time to fly return from London to San Francisco. Price data was last updated on 13 October 2024.

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

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 22 October 2024.

The most flights from LON to SFO are scheduled on a Monday (45 on average). You will have fewer flight options on Monday, which is when the least amount of flights are scheduled (45 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 22 October 2024.
Get a feel of what it's like to fly with Scandinavian Airlines, Lufthansa and Brussels Airlines from London to San Francisco by reading reviews from past customers. Users can see the overall rating for each airline as well as how each is rated in terms of entertainment options, comfort, food, crew/service, and boarding process.
8.1
Very Good
1,332 reviews

Entertainment

8.0

Comfort

8.0

Food

7.7

Boarding

8.3

Overall

8.1

Crew

8.6

Reviews

1 / 10

Everything was poor and I had asked for some food and they told me to go to the serving place and get it . They weren’t very friendly and again I wanted upgrade to business and seats were empty and they said it was full . Will never fly with Singapore airlines

8.1
Very Good
1,332 reviews
8.1
Very Good
1,332 reviews

Entertainment

8.0

Comfort

8.0

Food

7.7

Boarding

8.3

Overall

8.1

Crew

8.6

Reviews

1 / 10

Everything was poor and I had asked for some food and they told me to go to the serving place and get it . They weren’t very friendly and again I wanted upgrade to business and seats were empty and they said it was full . Will never fly with Singapore airlines

8.1
Very Good
541 reviews
8.1
Very Good
1,332 reviews

Entertainment

8.0

Comfort

8.0

Food

7.7

Boarding

8.3

Overall

8.1

Crew

8.6

Reviews

1 / 10

Everything was poor and I had asked for some food and they told me to go to the serving place and get it . They weren’t very friendly and again I wanted upgrade to business and seats were empty and they said it was full . Will never fly with Singapore airlines

8.0
Very Good
8,892 reviews
8.1
Very Good
1,332 reviews

Entertainment

8.0

Comfort

8.0

Food

7.7

Boarding

8.3

Overall

8.1

Crew

8.6

Reviews

1 / 10

Everything was poor and I had asked for some food and they told me to go to the serving place and get it . They weren’t very friendly and again I wanted upgrade to business and seats were empty and they said it was full . Will never fly with Singapore airlines

7.8
Good
1,360 reviews
8.1
Very Good
1,332 reviews

Entertainment

8.0

Comfort

8.0

Food

7.7

Boarding

8.3

Overall

8.1

Crew

8.6

Reviews

1 / 10

Everything was poor and I had asked for some food and they told me to go to the serving place and get it . They weren’t very friendly and again I wanted upgrade to business and seats were empty and they said it was full . Will never fly with Singapore airlines

7.8
Good
389 reviews
8.1
Very Good
1,332 reviews

Entertainment

8.0

Comfort

8.0

Food

7.7

Boarding

8.3

Overall

8.1

Crew

8.6

Reviews

1 / 10

Everything was poor and I had asked for some food and they told me to go to the serving place and get it . They weren’t very friendly and again I wanted upgrade to business and seats were empty and they said it was full . Will never fly with Singapore airlines

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?

    San Francisco (SFO) is the airport you will fly into if you book a flight from London to San Francisco. You should not have trouble finding flights to San Francisco from London; the airport handles an average of 45 inbound flights from London per day. You should also have plenty of airline options to choose from since 19 airlines have flights to the San Francisco airport from London. It is only a 11.8 mi journey from San Francisco (SFO) to San Francisco’s city center.

  • Can I find flights from London to San Francisco for under £400 on Cheapflights?

    Yes, there are multiple flights from London to San Francisco for under £400. The cheapest flight booked recently is on TAP AIR PORTUGAL for just £327, but on average you can expect to pay £421.

  • Are there nonstop flights from London to San Francisco for under £400 on Cheapflights?

    Cheapflights has at least 13 direct flights from London to San Francisco under £400. A good price for a nonstop flight from London to San Francisco is less than £436.

  • 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 days are direct flights available from London to San Francisco?

    Days when direct flights are available for this flight are: Tuesday, Wednesday, Thursday.

  • How many flights depart from London to San Francisco on average per day?

    14 flight departures from London to San Francisco per day on average.
    Afternoon (Midday - 6pm) - 100% of flight departures

  • How long is the flight from London to San Francisco?

    There are many flights that can get you from London to San Francisco in 23h 25m. Fly via TAP AIR PORTUGAL, Scandinavian Airlines, or KLM to get the fastest option. London and San Francisco are separated by a distance of 5383 mi. This flight may include one or multiple stops.

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

    Flying on TAP AIR PORTUGAL is currently your cheapest option to San Francisco, with prices starting at £327. Additional return tickets that might be worth considering are offered by Scandinavian Airlines and KLM, with the lowest prices starting at £369 and £396, respectively. TAP AIR PORTUGAL is priced at 35% lower than the current average price of a flight leaving 3 months from now.

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

    To fly one-way, consider booking your trip with WestJet, which is currently one of the cheapest options available, starting at £272. TAP AIR PORTUGAL flights start at £388 while deals on Virgin Atlantic start at £407 one-way.

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

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

    Consider Air Canada (70%), Austrian Airlines (70%) or United Airlines (70%) when booking your flight. These represent the most reliable airlines when flying from London to San Francisco.

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

    The cheapest flight price from London to San Francisco is £374. On average you can expect to pay £1,786. The most popular route, (London Heathrow - San Francisco), can usually be booked for £339.

  • What does LHR to SFO mean?

    London Heathrow Airport is LHR and San Francisco Airport is SFO. These codes are created by the International Air Transport Association (IATA) and airlines use them to identify the departing and arrival airports in the flight routes they service. While you’re still figuring out your travel plans, it’s not a bad idea to learn the names and codes of other airports around these areas: London Gatwick Airport (LGW), London Stansted Airport (STN), London Luton Airport (LTN), London City Airport (LCY), London Southend Airport (SEN).

  • Where are the most common stopover locations when flying from London to San Francisco?

  • What are some popular things to do or see while on a stopover in Dublin?

    Bord Gáis Energy Theatre, Olympia Theatre, and Vicar Street are currently the most popular points of interest in Dublin at the moment. Bord Gáis Energy Theatre, Olympia Theatre, and Vicar Street can be accessed by travelling approximately 5.7 mi, 5.7 mi, and 5.9 mi, respectively from Dublin. Travellers can book a car hire at Dublin for about £19 per day to make their sightseeing more efficient.

  • What are some popular points of interest to see during a stopover in Copenhagen?

    Tivoli, Opera House, and Nytorv are the most popular attractions in Copenhagen if you're in need of something to do during your stopover. Tivoli, Opera House, and Nytorv can be accessed by travelling approximately 5.3 mi, 4.9 mi, and 5.2 mi, respectively from Kastrup Copenhagen. Those looking to explore during their stopover in Copenhagen can hire a car from Kastrup Copenhagen for about £27 per day.

  • Where are the least popular stopover locations for London to San Francisco flights?

  • 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 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.

  • 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 21/10.

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

    Currently, February is the cheapest month in which you can book a flight from London to San Francisco (average of £531). Flying from London to San Francisco in July is currently the most expensive (average of £734). 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 are the most eco-friendly airlines from London to San Francisco?

    If you are looking for flights to San Francisco from London that are eco-friendly, there are a couple of airlines that we can recommend. The recommended airlines are Brussels Airlines, Finnair, Jetblue and Singapore Airlines. If you choose to fly with Brussels Airlines, you will be flying with an airline that trains its pilots only to use one engine during taxiing and limited flaps while landing. This saves a lot of fuel. The fleet of aircraft for long-haul flights has also been replaced with models consuming 3.1% less fuel. Finnair is another great option for sustainable travel. They plan to cut their carbon emissions by 2025 by 50% from 2019’s level. This airline is also working on sustainable catering. Jetblue uses Airbus A320neos which improve fuel economy by 15%. This airline also uses Sharklets, which are wing tip devices that improve aerodynamics and reduce carbon emissions by 4%. Singapore Airlines is another great airline to fly with for eco-friendly travel. This airline is working on sustainable fuel and regularly replaces its planes with newer models that consume less fuel.

  • How to fly more sustainably from London to San Francisco?

    There are many great ways to travel more sustainably to San Francisco from London. One of the best ways you can do this is by taking a direct flight. Taking a direct flight uses less fuel than taking a flight route with more than one stopover. If you can, you should also fly in economy class. The economy class takes up less room in the aircraft and therefore can hold more passengers. Another great eco-friendly way to travel is by packing light. The lighter you pack, the less fuel the aircraft will use. Flying with an airline that has sustainable travel methods in place is super beneficial for the planet. If you have the option, try to fly with Brussels Airlines, Finnair, Jetblue or Singapore Airlines.

See more FAQs

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Fly from London to San Francisco on these airlines
Choose from the following airlines for your flight from London to San Francisco. Flights are based on user searches made on Cheapflights and were last updated on 22 October 2024.

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 1,032,068 searches. Data last updated 22 October 2024.
AirlineCheapestAverageFlexibilityOn-time
Scandinavian AirlinesCheapest£247Average£513FlexibilityNo cancel feeOn-time77%
Search Scandinavian Airlines flights
DeltaCheapest£314Average£527FlexibilityNo cancel feeOn-timeN/A
Search Delta flights
Air CanadaCheapest£319Average£475FlexibilityNo cancel feeOn-time67%
Search Air Canada flights
Brussels AirlinesCheapest£339Average£452FlexibilityNo cancel feeOn-timeN/A
Search Brussels Airlines flights
TAP AIR PORTUGALCheapest£349Average£453FlexibilityNo cancel feeOn-timeN/A
Search TAP AIR PORTUGAL flights
American AirlinesCheapest£351Average£551FlexibilityNo cancel feeOn-time71%
Search American Airlines flights
Virgin AtlanticCheapest£353Average£504FlexibilityNo cancel feeOn-time72%
Search Virgin Atlantic flights
British AirwaysCheapest£365Average£451FlexibilityNo cancel feeOn-time70%
Search British Airways flights
Aer LingusCheapest£370Average£521FlexibilityNo cancel feeOn-timeN/A
Search Aer Lingus flights
LufthansaCheapest£373Average£546FlexibilityNo cancel feeOn-time76%
Search Lufthansa flights

Fly with Cheapflights

Find the best flight deals on Cheapflights, where travellers can enjoy low prices and a wide availability of flights to their desired destinations.

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?

Cheapflights taps into our reliable network of hundreds of airlines and travel agencies to find the best deals for flights from London to San Francisco for you. Better yet — we are completely free to use.

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

Users can book flights with no change fees policies with our dedicated filters. Book flights from London to San Francisco flexibly with Cheapflights today.

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

Yes, and it’s super simple to set up. Click the bell icon next to the flight deals above and provide a valid email address to enable Price Alerts. That’s it!

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