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Cheap flights from London to San Francisco from £398

This is the cheapest retur flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 28/11. Fares are subject to change and may not be available on all flights or dates of travel.
LON — SFO
25 Nov — 2 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 Tuesday or Wednesday and return on a Sunday

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 953,013 searches. Data last updated 20 November 2024.

Fly from

Any airport

Fly to

Any airport

Route

Depart

Return

Price

LondonSan Francisco

LGW - SFO

LGWSFO

London Gatwick

Tue 11/3

16:35-15:40

1 stop30h 05m

San Francisco

Mon 24/3

17:40-15:45

1 stop15h 05m

£400

LondonSan Francisco

LHR - SFO

LHRSFO

London Heathrow

Thu 5/12

19:55-14:30

1 stop26h 35m

San Francisco

Mon 9/12

16:40-21:35

1 stop20h 55m

£402

LondonSan Francisco

LHR - SFO

LHRSFO

London Heathrow

Sun 2/2

18:40-15:40

1 stop29h 00m

San Francisco

Sun 9/2

17:30-16:00

1 stop14h 30m

£407

LondonSan Francisco

LHR - SFO

LHRSFO

London Heathrow

Sat 7/12

06:30-11:50

1 stop13h 20m

San Francisco

Mon 9/12

16:40-10:55

Nonstop10h 15m

£417

LondonSan Francisco

LHR - SFO

LHRSFO

London Heathrow

Mon 21/4

06:30-12:40

1 stop14h 10m

San Francisco

Mon 28/4

12:55-07:25

Nonstop10h 30m

£433

LondonSan Francisco

LGW - SFO

LGWSFO

London Gatwick

Wed 12/2

07:55-20:10

1 stop20h 15m

San Francisco

Mon 17/2

19:55-07:10

1 stop27h 15m

£435

LondonSan Francisco

LHR - SFO

LHRSFO

London Heathrow

Mon 3/3

06:30-15:35

2 stops17h 05m

San Francisco

Wed 19/3

13:00-10:10

1 stop14h 10m

£477

LondonSan Francisco

LHR - SFO

LHRSFO

London Heathrow

Mon 3/3

13:00-20:11

1 stop15h 11m

San Francisco

Wed 19/3

18:25-12:00

Nonstop10h 35m

£479

LondonSan Francisco

LHR - SFO

LHRSFO

London Heathrow

Sun 9/3

11:45-16:00

Nonstop11h 15m

San Francisco

Thu 27/3

18:30-12:00

Nonstop10h 30m

£486

LondonSan Francisco

LGW - SFO

LGWSFO

London Gatwick

Wed 4/12

18:45-16:25

1 stop29h 40m

San Francisco

Sun 8/12

19:25-17:50

1 stop14h 25m

£493

Flights are sorted by cheapest return flights first.

Deals found on 19/11

Showing 1-10 of 56 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 20 November 2024.

Round-trip from

£400

Popular in

July

Cheapest in

February

Average price

£451
TAP AIR PORTUGAL
  • TAP AIR PORTUGAL
  • 11/3-24/3
  • 2 total stops
  • 45h 10m 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 November 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 20 November 2024.

Thu 5/1215:55LGW - SFO
1 stop30h 35mTAP AIR PORTUGAL
Mon 9/1216:40SFO - LGW
1 stop15h 05mTAP AIR PORTUGAL
Deal found 19/11£401
Thu 5/1219:55LHR - SFO
1 stop26h 35mTAP AIR PORTUGAL
Mon 9/1216:40SFO - LHR
1 stop20h 55mTAP AIR PORTUGAL
Deal found 19/11£402
Mon 25/1106:30LHR - SFO
1 stop13h 20mDelta
Tue 10/1216:40SFO - LHR
Nonstop10h 15mDelta
Deal found 19/11£417
Wed 4/1207:40LHR - SFO
1 stop15h 10mLufthansa
Sun 8/1217:25SFO - LHR
Nonstop10h 35mLufthansa
Deal found 19/11£440
Wed 4/1219:30LHR - SFO
1 stop28h 10mScandinavian Airlines
Sun 29/1217:30SFO - LHR
1 stop16h 10mScandinavian Airlines
Deal found 19/11£445
Thu 5/1211:40LHR - SFO
Nonstop11h 05mVirgin Atlantic
Mon 9/1216:40SFO - LHR
Nonstop10h 15mVirgin Atlantic
Deal found 19/11£475
Fri 6/1211:45LHR - SFO
Nonstop11h 15mBritish Airways
Thu 16/117:30SFO - LHR
Nonstop10h 30mBritish Airways
Deal found 19/11£478
Tue 10/1209:30LHR - SFO
2 stops19h 29mMultiple Airlines
Tue 14/113:00SFO - LHR
1 stop13h 10mMultiple Airlines
Deal found 19/11£482
Tue 10/1207:40LHR - SFO
1 stop15h 10mUnited Airlines
Tue 14/117:25SFO - LHR
Nonstop10h 35mUnited Airlines
Deal found 19/11£485
Wed 25/1213:45LHR - SFO
Nonstop11h 10mAustrian Airlines
Fri 17/112:50SFO - LHR
Nonstop10h 35mAustrian Airlines
Deal found 19/11£496
Wed 4/1213:55LGW - SFO
2 stops34h 30mMultiple Airlines
Sun 8/1219:25SFO - LGW
2 stops19h 25mMultiple Airlines
Deal found 19/11£497
Fri 22/1114:30LHR - SFO
1 stop15h 21mAir Canada
Thu 28/1108:30SFO - LHR
2 stops19h 20mAir Canada
Deal found 19/11£498

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 15 November 2024.

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, February is the cheapest month in which you can book a flight from London to San Francisco (average of £538). Flying from London to San Francisco in July is currently the most expensive (average of £741). 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 20 November 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 18 November 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. Sunday afternoons 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 20 November 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 20 November 2024.
Get a feel of what it's like to fly with TAP AIR PORTUGAL, Scandinavian Airlines and Lufthansa 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
3,487 reviews

Entertainment

8.2

Crew

8.3

Food

7.9

Boarding

8.1

Comfort

8.0

Overall

8.1

Reviews

1 / 10

It was not a good experience the seats were small and uncomfortable the food was not good and they forgot to serve me my breakfast - there were 5 us in 2 rows that they just completely skipped us. Very disappointed.

8.1
Very Good
3,487 reviews
8.1
Very Good
3,487 reviews

Entertainment

8.2

Crew

8.3

Food

7.9

Boarding

8.1

Comfort

8.0

Overall

8.1

Reviews

1 / 10

It was not a good experience the seats were small and uncomfortable the food was not good and they forgot to serve me my breakfast - there were 5 us in 2 rows that they just completely skipped us. Very disappointed.

8.1
Very Good
531 reviews
8.1
Very Good
3,487 reviews

Entertainment

8.2

Crew

8.3

Food

7.9

Boarding

8.1

Comfort

8.0

Overall

8.1

Reviews

1 / 10

It was not a good experience the seats were small and uncomfortable the food was not good and they forgot to serve me my breakfast - there were 5 us in 2 rows that they just completely skipped us. Very disappointed.

8.0
Very Good
8,765 reviews
8.1
Very Good
3,487 reviews

Entertainment

8.2

Crew

8.3

Food

7.9

Boarding

8.1

Comfort

8.0

Overall

8.1

Reviews

1 / 10

It was not a good experience the seats were small and uncomfortable the food was not good and they forgot to serve me my breakfast - there were 5 us in 2 rows that they just completely skipped us. Very disappointed.

7.8
Good
1,350 reviews
8.1
Very Good
3,487 reviews

Entertainment

8.2

Crew

8.3

Food

7.9

Boarding

8.1

Comfort

8.0

Overall

8.1

Reviews

1 / 10

It was not a good experience the seats were small and uncomfortable the food was not good and they forgot to serve me my breakfast - there were 5 us in 2 rows that they just completely skipped us. Very disappointed.

7.8
Good
389 reviews
8.1
Very Good
3,487 reviews

Entertainment

8.2

Crew

8.3

Food

7.9

Boarding

8.1

Comfort

8.0

Overall

8.1

Reviews

1 / 10

It was not a good experience the seats were small and uncomfortable the food was not good and they forgot to serve me my breakfast - there were 5 us in 2 rows that they just completely skipped us. Very disappointed.

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 31 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.

  • 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 £400. Additional return tickets that might be worth considering are offered by Scandinavian Airlines and Delta, with the lowest prices starting at £407 and £417, respectively. TAP AIR PORTUGAL is priced at 23% 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 TAP AIR PORTUGAL, which is currently one of the cheapest options available, starting at £433. Air New Zealand flights start at £441 while deals on Vueling start at £453 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 (73%), Austrian Airlines (73%) or United Airlines (73%) 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 £385. On average you can expect to pay £1,905. The most popular route, (London Heathrow - San Francisco), can usually be booked for £366.

  • 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 Copenhagen?

    Tivoli, Opera House, and Højbro Plads are currently the most popular points of interest in Copenhagen at the moment. Tivoli, Opera House, and Højbro Plads can be accessed by travelling approximately 5.3 mi, 4.9 mi, and 5.1 mi, respectively from Kastrup Copenhagen. Travellers can book a car hire at Kastrup Copenhagen for about £30 per day to make their sightseeing more efficient.

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

    Times Square, New York City Center, and August Wilson Theater are the most popular attractions in New York if you're in need of something to do during your stopover. Times Square, New York City Center, and August Wilson Theater can be accessed by travelling approximately 13.6 mi, 13.6 mi, and 13.7 mi, respectively from New York John F Kennedy Intl. Those looking to explore during their stopover in New York can hire a car from New York John F Kennedy Intl for about £45 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 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, February is the cheapest month in which you can book a flight from London to San Francisco (average of £538). Flying from London to San Francisco in July is currently the most expensive (average of £741). 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 20 November 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 953,013 searches. Data last updated 20 November 2024.
AirlineCheapestAverageFlexibilityOn-time
Scandinavian AirlinesCheapest£253Average£535FlexibilityNo cancel feeOn-time77%
Search Scandinavian Airlines flights
DeltaCheapest£281Average£536FlexibilityNo cancel feeOn-timeN/A
Search Delta flights
Air CanadaCheapest£328Average£481FlexibilityNo cancel feeOn-time67%
Search Air Canada flights
Brussels AirlinesCheapest£349Average£465FlexibilityNo cancel feeOn-timeN/A
Search Brussels Airlines flights
TAP AIR PORTUGALCheapest£364Average£478FlexibilityNo cancel feeOn-timeN/A
Search TAP AIR PORTUGAL flights
Virgin AtlanticCheapest£370Average£524FlexibilityNo cancel feeOn-time72%
Search Virgin Atlantic flights
British AirwaysCheapest£375Average£490FlexibilityNo cancel feeOn-time70%
Search British Airways flights
FinnairCheapest£392Average£574FlexibilityNo cancel feeOn-time76%
Search Finnair flights
KLMCheapest£399Average£590FlexibilityNo cancel feeOn-time75%
Search KLM flights
Austrian AirlinesCheapest£400Average£497FlexibilityNo cancel feeOn-time78%
Search Austrian Airlines flights

Fly with Cheapflights

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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?

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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