Cheap flights from London to San Francisco from £387
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 23/10. Fares are subject to change and may not be available on all flights or dates of travel.
LON — SFO
3 Sep — 10 Sep1
Return
1 adult
Economy
Cheapflights Tip: 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 Thursday 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 29 August 2025.
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 29 August 2025.
Mon 29/916:55LHR - SFO
1 stop15h 04mMultiple Airlines
Mon 13/1008:08SFO - LHR
1 stop14h 17mMultiple Airlines
Deal found 28/8£414
Thu 11/915:05LGW - SFO
1 stop16h 54mAmerican Airlines
Tue 23/906:00SFO - LGW
2 stops18h 10mAmerican Airlines
Deal found 28/8£414
Sun 7/920:45LCY - SFO
1 stop23h 00mVirgin Atlantic
Tue 30/913:45SFO - LCY
1 stop21h 55mVirgin Atlantic
Deal found 27/8£414
Mon 15/906:55LHR - SFO
1 stop15h 35mUnited Airlines
Fri 26/923:56SFO - LHR
1 stop22h 59mUnited Airlines
Deal found 26/8£415
Thu 11/915:05LGW - SFO
1 stop16h 54mAmerican Airlines
Fri 26/922:43SFO - LGW
1 stop25h 27mAmerican Airlines
Deal found 27/8£415
Mon 22/918:40LHR - SFO
1 stop29h 50mScandinavian Airlines
Thu 25/919:40SFO - LHR
1 stop14h 50mScandinavian Airlines
Deal found 28/8£416
Wed 24/909:20LCY - SFO
2 stops18h 45mVirgin Atlantic
Thu 2/1013:45SFO - LCY
1 stop19h 35mVirgin Atlantic
Deal found 28/8£416
Sun 21/908:30LHR - SFO
1 stop15h 30mUnited Airlines
Sat 11/1011:40SFO - LHR
1 stop13h 55mUnited Airlines
Deal found 27/8£417
Thu 25/909:25LCY - SFO
1 stop14h 45mSWISS
Thu 9/1019:30SFO - LCY
1 stop13h 45mSWISS
Deal found 27/8£417
Tue 14/1010:30LHR - SFO
2 stops19h 10mMultiple Airlines
Tue 9/1207:30SFO - LHR
2 stops19h 50mMultiple Airlines
Deal found 28/8£417
Sun 7/910:55LGW - SFO
2 stops42h 26mMultiple Airlines
Tue 30/914:22SFO - LGW
1 stop36h 33mMultiple Airlines
Deal found 27/8£417
Thu 18/909:25LCY - SFO
1 stop14h 45mSWISS
Wed 1/1019:30SFO - LCY
1 stop13h 45mSWISS
Deal found 27/8£417
Best flights from London to San Francisco
Discover carefully curated flight deals from London to San Francisco that have cost, travel time, and stopovers in mind to ensure you get the best travel experience. Data last updated 29 August 2025.
Sun 16/1107:40LHR - SFO
1 stop15h 10mLufthansa
Sun 23/1117:25SFO - LHR
Nonstop10h 35mLufthansa
Deal found 27/8£414
Thu 11/915:05LGW - SFO
1 stop16h 54mAmerican Airlines
Tue 23/906:00SFO - LGW
2 stops18h 10mAmerican Airlines
Deal found 28/8£414
Wed 1/1015:05LGW - SFO
1 stop16h 54mBritish Airways
Sun 5/1022:45SFO - LGW
1 stop25h 25mBritish Airways
Deal found 28/8£414
Mon 6/1020:10LCY - SFO
1 stop23h 35mVirgin Atlantic
Mon 20/1013:45SFO - LCY
1 stop18h 55mVirgin Atlantic
Deal found 28/8£414
Mon 15/911:15LHR - SFO
1 stop19h 09mFinnair
Fri 26/905:45SFO - LHR
2 stops16h 35mFinnair
Deal found 28/8£415
Thu 11/906:55LHR - SFO
1 stop20h 05mUnited Airlines
Tue 23/913:05SFO - LHR
Nonstop10h 20mUnited Airlines
Deal found 27/8£415
Thu 23/1010:20LHR - SFO
1 stop14h 10mScandinavian Airlines
Thu 6/1116:40SFO - LHR
2 stops18h 10mScandinavian Airlines
Deal found 27/8£416
Mon 29/909:25LCY - SFO
1 stop15h 10mSWISS
Mon 6/1019:40SFO - LCY
1 stop15h 05mSWISS
Deal found 28/8£416
Thu 18/906:30LHR - SFO
1 stop14h 10mMultiple Airlines
Wed 1/1019:50SFO - LHR
Nonstop10h 20mMultiple Airlines
Deal found 27/8£417
Wed 28/109:35LGW - SFO
2 stops62h 30mTAP AIR PORTUGAL
Mon 9/216:35SFO - LGW
1 stop15h 10mTAP AIR PORTUGAL
Deal found 27/8£420
Mon 15/910:35LHR - SFO
Nonstop11h 05mUnited Airlines
Fri 26/908:25SFO - LHR
1 stop14h 30mUnited Airlines
Deal found 28/8£415
Fri 26/906:40LHR - SFO
1 stop17h 50mScandinavian Airlines
Mon 1/1216:40SFO - LHR
2 stops15h 45mScandinavian Airlines
Deal found 28/8£416
Direct flights from London to San Francisco
Explore direct flight options from London to San Francisco based on user searches, and compare prices and availability for your desired travel dates. Data last updated 29 August 2025.
Mon 15/916:25LHR - SFO
Nonstop11h 05mVirgin Atlantic
Fri 26/916:05SFO - LHR
Nonstop10h 20mVirgin Atlantic
Deal found 28/8£414
Fri 26/916:25LHR - SFO
Nonstop11h 05mVirgin Atlantic
Sat 4/1016:05SFO - LHR
Nonstop10h 20mVirgin Atlantic
Deal found 28/8£417
Sat 15/1115:25LHR - SFO
Nonstop11h 20mBritish Airways
Sat 29/1117:30SFO - LHR
Nonstop10h 30mBritish Airways
Deal found 27/8£417
Mon 13/1010:45LHR - SFO
Nonstop11h 05mBritish Airways
Tue 18/1120:40SFO - LHR
Nonstop10h 30mBritish Airways
Deal found 28/8£418
Tue 9/910:45LHR - SFO
Nonstop11h 05mBritish Airways
Wed 17/916:30SFO - LHR
Nonstop10h 25mBritish Airways
Deal found 27/8£420
Thu 18/910:45LHR - SFO
Nonstop11h 05mBritish Airways
Thu 2/1019:20SFO - LHR
Nonstop10h 25mBritish Airways
Deal found 27/8£421
Mon 13/1011:15LHR - SFO
Nonstop11h 00mVirgin Atlantic
Wed 12/1116:30SFO - LHR
Nonstop10h 10mVirgin Atlantic
Deal found 28/8£422
Fri 26/910:45LHR - SFO
Nonstop11h 05mBritish Airways
Mon 1/1220:40SFO - LHR
Nonstop10h 30mBritish Airways
Deal found 28/8£423
Sat 13/916:25LHR - SFO
Nonstop11h 05mVirgin Atlantic
Sat 20/921:20SFO - LHR
Nonstop10h 20mVirgin Atlantic
Deal found 27/8£424
Thu 11/911:15LHR - SFO
Nonstop11h 00mVirgin Atlantic
Wed 24/921:20SFO - LHR
Nonstop10h 20mVirgin Atlantic
Deal found 26/8£425
Sat 27/916:25LHR - SFO
Nonstop11h 05mVirgin Atlantic
Sat 4/1016:05SFO - LHR
Nonstop10h 20mVirgin Atlantic
Deal found 28/8£426
Last-minute flights from London to San Francisco
Discover last-minute flight deals from London to San Francisco. Data last updated 29 August 2025 and is based on user searches.
Sun 7/920:45LCY - SFO
1 stop23h 00mVirgin Atlantic
Tue 30/913:45SFO - LCY
1 stop21h 55mVirgin Atlantic
Deal found 27/8£414
Sun 7/910:55LGW - SFO
2 stops42h 26mMultiple Airlines
Tue 30/914:22SFO - LGW
1 stop36h 33mMultiple Airlines
Deal found 27/8£417
Thu 11/915:05LGW - SFO
1 stop16h 54mAmerican Airlines
Tue 23/906:00SFO - LGW
2 stops18h 10mAmerican Airlines
Deal found 28/8£414
Thu 11/915:05LGW - SFO
1 stop16h 54mAmerican Airlines
Fri 26/922:43SFO - LGW
1 stop25h 27mAmerican Airlines
Deal found 27/8£415
Mon 15/906:55LHR - SFO
1 stop15h 35mUnited Airlines
Fri 26/923:56SFO - LHR
1 stop22h 59mUnited Airlines
Deal found 26/8£415
Thu 18/909:25LCY - SFO
1 stop14h 45mSWISS
Wed 1/1019:30SFO - LCY
1 stop13h 45mSWISS
Deal found 27/8£417
Sun 21/908:30LHR - SFO
1 stop15h 30mUnited Airlines
Sat 11/1011:40SFO - LHR
1 stop13h 55mUnited Airlines
Deal found 27/8£417
Mon 22/918:40LHR - SFO
1 stop29h 50mScandinavian Airlines
Thu 25/919:40SFO - LHR
1 stop14h 50mScandinavian Airlines
Deal found 28/8£416
Wed 24/909:20LCY - SFO
2 stops18h 45mVirgin Atlantic
Thu 2/1013:45SFO - LCY
1 stop19h 35mVirgin Atlantic
Deal found 28/8£416
Thu 25/909:25LCY - SFO
1 stop14h 45mSWISS
Thu 9/1019:30SFO - LCY
1 stop13h 45mSWISS
Deal found 27/8£417
Thu 25/910:45LHR - SFO
Nonstop11h 05mBritish Airways
Wed 15/1019:20SFO - LHR
Nonstop10h 25mBritish Airways
Deal found 27/8£417
Mon 29/916:55LHR - SFO
1 stop15h 04mMultiple Airlines
Mon 13/1008:08SFO - LHR
1 stop14h 17mMultiple Airlines
Deal found 28/8£414
One-way flights from London to San Francisco
Search for one-way flight options from London to San Francisco. Find affordable one-way fares based on user searches. Data last updated 29 August 2025.
Thu 23/1014:10LTN - SFO
2 stops54h 35mMultiple Airlines
Deal found 28/8£387
Thu 15/114:50LHR - SFO
2 stops16h 53mMultiple Airlines
Deal found 28/8£387
Sat 6/921:10STN - SFO
2 stops49h 20mMultiple Airlines
Deal found 27/8£387
Thu 4/916:35LHR - SFO
2 stops33h 38mMultiple Airlines
Deal found 28/8£388
Mon 22/916:25LGW - SFO
1 stop29h 10mTAP AIR PORTUGAL
Deal found 28/8£388
Sat 4/1006:10STN - SFO
3 stops35h 20mMultiple Airlines
Deal found 27/8£388
Sun 7/907:30LHR - SFO
1 stop16h 30mUnited Airlines
Deal found 28/8£389
Mon 10/1111:40LGW - SFO
2 stops32h 32mMultiple Airlines
Deal found 28/8£389
Sat 18/1011:15STN - SFO
3 stops30h 01mMultiple Airlines
Deal found 27/8£389
Fri 10/1010:45LGW - SFO
3 stops35h 12mWestJet
Deal found 28/8£389
Sat 4/1009:50LHR - SFO
1 stop14h 05mBritish Airways
Deal found 27/8£390
Sun 15/218:05SEN - SFO
3 stops47h 25mMultiple Airlines
Deal found 28/8£390
Cheapflights Fare Finder
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 858,174 searches. Data last updated 29 August 2025.
Use the filters below to find and compare flights from London to San Francisco that are best for you.
Fly from
London
Fly to
San Francisco
Route
Depart
Return
Price
LondonSan Francisco
LHR - SFO
LHRSFO
London Heathrow
Sun 16/11
07:40-14:50
1 stop15h 10m
San Francisco
Sun 23/11
17:25-12:00
Nonstop10h 35m
£414
LondonSan Francisco
LGW - SFO
LGWSFO
London Gatwick
Thu 11/9
15:05-23:59
1 stop16h 54m
San Francisco
Tue 23/9
06:00-08:10
2 stops18h 10m
£414
LondonSan Francisco
LGW - SFO
LGWSFO
London Gatwick
Wed 1/10
15:05-23:59
1 stop16h 54m
San Francisco
Sun 5/10
22:45-08:10
1 stop25h 25m
£414
LondonSan Francisco
LCY - SFO
LCYSFO
London City
Mon 6/10
20:10-11:45
1 stop23h 35m
San Francisco
Mon 20/10
13:45-16:40
1 stop18h 55m
£414
LondonSan Francisco
LHR - SFO
LHRSFO
London Heathrow
Mon 15/9
11:15-22:24
1 stop19h 09m
San Francisco
Fri 26/9
05:45-06:20
2 stops16h 35m
£415
LondonSan Francisco
LHR - SFO
LHRSFO
London Heathrow
Thu 11/9
06:55-19:00
1 stop20h 05m
San Francisco
Tue 23/9
13:05-07:25
Nonstop10h 20m
£415
LondonSan Francisco
LHR - SFO
LHRSFO
London Heathrow
Mon 15/9
10:35-13:40
Nonstop11h 05m
San Francisco
Fri 26/9
08:25-06:55
1 stop14h 30m
£415
LondonSan Francisco
LHR - SFO
LHRSFO
London Heathrow
Thu 23/10
10:20-16:30
1 stop14h 10m
San Francisco
Thu 6/11
16:40-18:50
2 stops18h 10m
£416
LondonSan Francisco
LCY - SFO
LCYSFO
London City
Mon 29/9
09:25-16:35
1 stop15h 10m
San Francisco
Mon 6/10
19:40-18:45
1 stop15h 05m
£416
LondonSan Francisco
LHR - SFO
LHRSFO
London Heathrow
Fri 26/9
06:40-16:30
1 stop17h 50m
San Francisco
Mon 1/12
16:40-16:25
2 stops15h 45m
£416
Flights are sorted by cheapest return flights first.
Deals found on 28/8
Showing 1-10 of 60 results
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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.
Cheapflights Insights
Everything you need to know about your flight from London to San Francisco
How far ahead should I book a flight from London to San Francisco?
Use this chart to determine the optimal time to book a return flight from London to San Francisco. Price data was last updated on 22 August 2025.
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 £803). 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 29 August 2025.
Unlike at midday, when flights are generally more expensive, you can save up to 49% on flights from London to San Francisco by exploring options for tickets in the evening.
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 16 December 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 at midday 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 29 August 2025.
The most flights from LON to SFO are scheduled on a Wednesday (42 on average). You will have fewer flight options on Monday, which is when the least amount of flights are scheduled (22 on average).
How much does it cost for a return flight from London to San Francisco?
What’s the top stopover airport for flights from London to San Francisco?
Share of one-stop return flights from London to San Francisco chosen by Cheapflights users in the past 12 months, using the same stopover each way.
Copenhagen (CPH) – chosen by Cheapflights users on 36% of one-stop itineraries from London to San Francisco on Cheapflights.
What’s the cheapest stopover airport for flights from London to San Francisco?
Average return fare for one-stop flights from London to San Francisco, chosen by Cheapflights users in the past 12 months, with the same stopover each way.
Toronto (YYZ) is the most affordable one-stop option, with an average return flight price of £401.
What’s the fastest stopover option from London to San Francisco?
Shortest average travel time for one-stop one-way flights from London to San Francisco, based on itineraries clicked by Cheapflights users over the past 12 months, grouped by stopover airport.
Flights via Amsterdam (AMS) have the shortest average one-way travel time for one-stop routes: 13h 17m.
Which airport typically offers the quickest stopover for flights from London to San Francisco?
Average stopover duration for one-stop one-way flights from London to San Francisco, chosen by Cheapflights users in the last 12 months, grouped by stopover airport.
Flights via Amsterdam (AMS) offer the fastest connection on this route, with an average stopover time of 1h 06m.
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 29 August 2025.
Read reviews from past customers who have flown with KLM, United Airlines, andVirgin Atlantic
from London to San Francisco. 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.
A two and half hour delay caused havoc with all connections. Otherwise on board service was great.
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 35 inbound flights from London per day. You should also have plenty of airline options to choose from since 17 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.
How long is the flight from London to San Francisco?
There are many flights that can get you from London to San Francisco in 15h 10m. Fly via Lufthansa, American Airlines, or British Airways to get the fastest option. London and San Francisco are separated by a distance of 5350 mi. This flight may include one or multiple stops.
What are the cheapest airlines flying from London to San Francisco round-trip?
Flying on Delta is currently your cheapest option to San Francisco, with prices starting at £236. Additional return tickets that might be worth considering are offered by Scandinavian Airlines and TAP AIR PORTUGAL, with the lowest prices starting at £347 and £348, respectively. Delta is priced at 52% 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 £388. United Airlines flights start at £389 while deals on WestJet start at £389 one-way.
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?
Consider KLM (85%), Air France (85%) or Delta (85%) 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 £408. On average you can expect to pay £1,931. The most popular route, (London Heathrow - San Francisco), can usually be booked for £309.
Where are the most common stopover locations when flying from London to San Francisco?
Most of the time, London to San Francisco flights that have stopovers will stop in Copenhagen. Copenhagen is followed by Lisbon in terms of the most popular stopover location on flights 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 £44 per day to make their sightseeing more efficient.
What are some popular points of interest to see during a stopover in Lisbon?
Chiado, Sé de Lisboa, and Londres are the most popular attractions in Lisbon if you're in need of something to do during your stopover. Chiado, Sé de Lisboa, and Londres can be accessed by travelling approximately 4.5 mi, 4.6 mi, and 2.3 mi, respectively from Lisbon Humberto Delgado. Those looking to explore during their stopover in Lisbon can hire a car from Lisbon Humberto Delgado for about £20 per day.
Where are the least popular stopover locations for London to San Francisco flights?
The least popular stopover on flights from London to San Francisco is Dublin.
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 £803). 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
Travelling to a place near San Francisco?
Book flights to San Francisco if you plan to visit one of these locations
Santa Cruz
Newark
South San Francisco
Bodega Bay
Pacific Grove
Union City
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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 29 August 2025.
Explore flights to San Francisco departing from other origins. Flights are based on user searches made on Cheapflights and were last updated on 29 August 2025.
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 858,174 searches. Data last updated 29 August 2025.
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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