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$504+ Cheap flights from London (LON) to San Francisco (SFO)

This is the cheapest round-trip flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 11/28. Fares are subject to change and may not be available on all flights or dates of travel.
LON — SFO
Nov 25 — Dec 21
Mon 11/25
Mon 12/2
1 adult, Economy
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Find cheap flights from London to San Francisco with Cheapflights

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The best prices from London to San Francisco are usually found in February or November, booked 86 days in advance, depart on a Thursday or Wednesday 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 November 20, 2024.

Most accurate provider

AranGrant
3 stars

Most trusted provider

AranGrant
3 stars

Popular in

July

Cheapest in

February

Average price

$571

Round-trip from

$505
(Voliamo)
Provider with most accurate pricing for London (LON)-San Francisco flight deals.
Search Deals
Provider most trusted by Cheapflights users for London (LON)-San Francisco flights.
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High demand for flights, 26% potential price rise
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Best time to find cheap flights, 20% potential price drop
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Average for round-trip flights in November 2024
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From London (LON) to San Francisco
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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 November 20, 2024.

This Expedia deal was found by Cheapflights users on 11/20. 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/2811:45 amLHR - SFO
Nonstop11h 15mMultiple Airlines
Mon 12/24:05 pmSFO - LHR
1 stop15h 55mMultiple Airlines
Deal found 11/20$504
This Gotogate deal was found by Cheapflights users on 11/19. 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 12/53:55 pmLGW - SFO
1 stop30h 35mTAP AIR PORTUGAL
Mon 12/94:40 pmSFO - LGW
1 stop15h 05mTAP AIR PORTUGAL
Deal found 11/19$508
This Gotogate deal was found by Cheapflights users on 11/19. 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 12/57:55 pmLHR - SFO
1 stop26h 35mTAP AIR PORTUGAL
Mon 12/94:40 pmSFO - LHR
1 stop20h 55mTAP AIR PORTUGAL
Deal found 11/19$509
This Delta deal was found by Cheapflights users on 11/19. 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.
Mon 11/256:30 amLHR - SFO
1 stop13h 20mDelta
Tue 12/104:40 pmSFO - LHR
Nonstop10h 15mDelta
Deal found 11/19$528
This Kiwi.com deal was found by Cheapflights users on 11/20. 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 12/62:30 pmLHR - SFO
1 stop40h 29mFinnair
Thu 12/128:00 amSFO - LHR
1 stop20h 20mFinnair
Deal found 11/20$564
This Scandinavian Airlines deal was found by Cheapflights users on 11/20. 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 Scandinavian Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/47:30 pmLHR - SFO
1 stop28h 10mScandinavian Airlines
Sun 12/295:30 pmSFO - LHR
1 stop14h 30mScandinavian Airlines
Deal found 11/20$566
This ChecknFly deal was found by Cheapflights users on 11/19. 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 ChecknFly is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 11/241:45 pmLHR - SFO
Nonstop11h 10mLufthansa
Sun 12/15:25 pmSFO - LHR
Nonstop10h 35mLufthansa
Deal found 11/19$585
This Gotogate deal was found by Cheapflights users on 11/20. 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.
Mon 11/255:05 pmLHR - SFO
1 stop26h 45mVirgin Atlantic
Tue 12/104:40 pmSFO - LHR
Nonstop10h 15mVirgin Atlantic
Deal found 11/20$595
This Kiwi.com deal was found by Cheapflights users on 11/20. 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.
Tue 11/2612:00 pmLGW - SFO
1 stop27h 45mMultiple Airlines
Thu 1/3010:54 amSFO - LGW
1 stop15h 41mMultiple Airlines
Deal found 11/20$600
This Cheapflightsfares deal was found by Cheapflights users on 11/19. 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 Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 12/611:45 amLHR - SFO
Nonstop11h 15mBritish Airways
Thu 1/165:30 pmSFO - LHR
Nonstop10h 30mBritish Airways
Deal found 11/19$606
This United Airlines deal was found by Cheapflights users on 11/19. 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.
Mon 12/21:00 pmLHR - SFO
1 stop34h 35mUnited Airlines
Mon 12/910:45 pmSFO - LHR
1 stop13h 50mUnited Airlines
Deal found 11/19$625
This Brussels Airlines deal was found by Cheapflights users on 11/19. 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 Brussels Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/251:45 pmLHR - SFO
Nonstop11h 10mBrussels Airlines
Fri 1/1712:50 pmSFO - LHR
Nonstop10h 35mBrussels Airlines
Deal found 11/19$628

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 2,629,791 searches. Data last updated November 20, 2024.

Fly from

Any airport

Fly to

Any airport

Route

Depart

Return

Price

LondonSan Francisco

LGW - SFO

LGWSFO

London Gatwick

Sun 2/16

10:40 am-2:45 pm

1 stop36h 05m

San Francisco

Fri 3/7

7:15 pm-8:20 am

2 stops29h 05m

$505

LondonSan Francisco

LHR - SFO

LHRSFO

London Heathrow

Thu 12/5

7:55 pm-2:30 pm

1 stop26h 35m

San Francisco

Mon 12/9

4:40 pm-9:35 pm

1 stop20h 55m

$509

LondonSan Francisco

LHR - SFO

LHRSFO

London Heathrow

Sun 2/2

6:40 pm-3:40 pm

1 stop29h 00m

San Francisco

Sun 2/9

5:30 pm-4:00 pm

1 stop14h 30m

$515

LondonSan Francisco

LGW - SFO

LGWSFO

London Gatwick

Tue 1/14

12:00 pm-7:14 am

1 stop27h 14m

San Francisco

Tue 1/21

8:06 am-10:35 am

1 stop18h 29m

$522

LondonSan Francisco

LHR - SFO

LHRSFO

London Heathrow

Sat 12/7

6:30 am-11:50 am

1 stop13h 20m

San Francisco

Mon 12/9

4:40 pm-10:55 am

Nonstop10h 15m

$528

LondonSan Francisco

LHR - SFO

LHRSFO

London Heathrow

Fri 5/9

6:15 am-6:00 pm

1 stop19h 45m

San Francisco

Sat 5/17

10:15 pm-4:35 pm

Nonstop10h 20m

$552

LondonSan Francisco

LHR - SFO

LHRSFO

London Heathrow

Wed 12/25

1:45 pm-4:55 pm

Nonstop11h 10m

San Francisco

Sat 1/11

4:35 pm-1:30 pm

1 stop12h 55m

$585

LondonSan Francisco

LHR - SFO

LHRSFO

London Heathrow

Tue 1/14

6:00 am-4:25 pm

1 stop18h 25m

San Francisco

Tue 1/21

7:15 am-6:20 am

1 stop15h 05m

$592

LondonSan Francisco

LHR - SFO

LHRSFO

London Heathrow

Sat 1/25

3:20 pm-6:45 pm

Nonstop11h 25m

San Francisco

Mon 4/7

3:30 pm-10:00 am

Nonstop10h 30m

$603

LondonSan Francisco

LHR - SFO

LHRSFO

London Heathrow

Mon 3/3

1:00 pm-8:11 pm

1 stop15h 11m

San Francisco

Thu 3/20

1:50 pm-7:25 am

Nonstop10h 35m

$607

Flights are sorted by cheapest round-trip flights first.

Deals found on 11/20

Showing 1-10 of 57 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 November.
ProviderPrice AccuracyTrust Score*
ExpediaPrice Accuracy1 starTrust Score*3 stars
eDreamsPrice Accuracy3 starsTrust Score*3 stars
AranGrantPrice Accuracy3 starsTrust Score*3 stars
FlightHubPrice Accuracy3 starsTrust Score*3 stars
CheapflightsfaresPrice Accuracy3 starsTrust Score*1 star
ScholarTripPrice Accuracy3 starsTrust Score*3 stars
KAYAKPrice Accuracy1 starTrust Score*3 stars
PricelinePrice Accuracy1 starTrust Score*3 stars
CombigoPrice Accuracy3 starsTrust Score*3 stars

*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 November 15, 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 86 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 $381). 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 November 20, 2024.

It’s optimal to fly from London to San Francisco in the evening. By choosing this option you can save up to 6% 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.

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 November 20, 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 - 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 November 20, 2024.
See what other customers who have flown with Scandinavian Airlines, Lufthansa and United Airlines 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.
Air New Zealand
8.1
Very good
529 reviews

Comfort

8.0

Crew

8.6

Entertainment

7.6

Boarding

8.2

Food

7.4

Overall

8.1

Reviews

1 / 10

The crew was great, the seats were comfy but in need of better lumbar support. I was disappointed in the movie selection. No classics, a lot of sci-fi/fantasy that hold no interest for me. All in all, B+ rating.

Air New Zealand
8.1
Very good
529 reviews
Air New Zealand
8.1
Very good
529 reviews

Comfort

8.0

Crew

8.6

Entertainment

7.6

Boarding

8.2

Food

7.4

Overall

8.1

Reviews

1 / 10

The crew was great, the seats were comfy but in need of better lumbar support. I was disappointed in the movie selection. No classics, a lot of sci-fi/fantasy that hold no interest for me. All in all, B+ rating.

Delta
8.0
Very good
8,756 reviews
Air New Zealand
8.1
Very good
529 reviews

Comfort

8.0

Crew

8.6

Entertainment

7.6

Boarding

8.2

Food

7.4

Overall

8.1

Reviews

1 / 10

The crew was great, the seats were comfy but in need of better lumbar support. I was disappointed in the movie selection. No classics, a lot of sci-fi/fantasy that hold no interest for me. All in all, B+ rating.

KLM
7.8
Good
1,350 reviews
Air New Zealand
8.1
Very good
529 reviews

Comfort

8.0

Crew

8.6

Entertainment

7.6

Boarding

8.2

Food

7.4

Overall

8.1

Reviews

1 / 10

The crew was great, the seats were comfy but in need of better lumbar support. I was disappointed in the movie selection. No classics, a lot of sci-fi/fantasy that hold no interest for me. All in all, B+ rating.

Air Transat
7.8
Good
389 reviews
Air New Zealand
8.1
Very good
529 reviews

Comfort

8.0

Crew

8.6

Entertainment

7.6

Boarding

8.2

Food

7.4

Overall

8.1

Reviews

1 / 10

The crew was great, the seats were comfy but in need of better lumbar support. I was disappointed in the movie selection. No classics, a lot of sci-fi/fantasy that hold no interest for me. All in all, B+ rating.

Finnair
7.7
Good
1,300 reviews
Air New Zealand
8.1
Very good
529 reviews

Comfort

8.0

Crew

8.6

Entertainment

7.6

Boarding

8.2

Food

7.4

Overall

8.1

Reviews

1 / 10

The crew was great, the seats were comfy but in need of better lumbar support. I was disappointed in the movie selection. No classics, a lot of sci-fi/fantasy that hold no interest for me. All in all, B+ rating.

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 31 daily inbound flights from London from 12 different airlines.

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

    TAP AIR PORTUGAL, at $505, was found to be the cheapest airline from London to San Francisco.Alternate airlines to your destination round-trip include Scandinavian Airlines and Delta. You may be able to fly from London to San Francisco for 24% 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 TAP AIR PORTUGAL, with whom users have recently found tickets for as low as $548. However, be on the lookout for offers from Air New Zealand and Vueling, 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?

    When deciding which route to take from London to San Francisco consider London Heathrow - San Francisco, London Gatwick - San Francisco or London City - San Francisco as they are the most popular.

  • 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 (73%), Austrian Airlines (73%) or United Airlines (73%) 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 $1,447, our data shows the cheapest flight currently is $499. When looking at the most popular route, (London Heathrow - San Francisco), you can expect to pay $463 for that flight.

  • 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.

  • 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 $381). 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.

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Alternative routes for London to San Francisco

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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 2,629,791 searches. Data last updated November 20, 2024.
AirlineCheapestAverageFlexibilityOn-time
Scandinavian AirlinesCheapest$415Average$634FlexibilityNo cancel feeOn-time77%
Austrian AirlinesCheapest$476Average$650FlexibilityNo cancel feeOn-time78%
LufthansaCheapest$507Average$648FlexibilityNo cancel feeOn-time76%
British AirwaysCheapest$514Average$808FlexibilityNo cancel feeOn-time70%
DeltaCheapest$519Average$739FlexibilityNo cancel feeOn-timeN/A
FinnairCheapest$525Average$571FlexibilityNo cancel feeOn-time76%
Virgin AtlanticCheapest$527Average$745FlexibilityNo cancel feeOn-time72%
American AirlinesCheapest$544Average$709FlexibilityNo cancel feeOn-time71%
United AirlinesCheapest$549Average$712FlexibilityNo cancel feeOn-time69%
Brussels AirlinesCheapest$562Average$650FlexibilityNo cancel feeOn-timeN/A
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