Cheap flights from London to San Francisco from £376
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 6/12. Fares are subject to change and may not be available on all flights or dates of travel.
LON — SFO
27 Dec — 3 Jan1
Return
1 adult
Economy
Return
1 adult, Economy, 0 bags
Cheapflights Tip: The best prices from London to San Francisco are usually found in September or February, booked 51 days in advance, depart on a Thursday or Tuesday and return on a Wednesday
Cheap flight deals from London to San Francisco
Discover tips and strategies to find the most affordable flight options for your journey from London (LON) to San Francisco (SFO). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated 27 November 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 27 November 2025.
Thu 4/1217:55LHR - SFO
2 stops29h 40mBritish Airways
Tue 9/1217:20SFO - LHR
1 stop14h 15mBritish Airways
Deal found 24/11£453
Thu 25/1208:20LHR - SFO
1 stop16h 44mBritish Airways
Sat 10/120:40SFO - LHR
Nonstop10h 30mBritish Airways
Deal found 24/11£455
Tue 2/1211:50LHR - SFO
1 stop14h 34mBritish Airways
Thu 19/321:40SFO - LHR
Nonstop10h 30mBritish Airways
Deal found 25/11£458
Sat 6/1215:35LHR - SFO
2 stops31h 00mScandinavian Airlines
Mon 12/116:40SFO - LHR
1 stop17h 50mScandinavian Airlines
Deal found 25/11£461
Mon 1/1216:05LHR - SFO
2 stops31h 30mBritish Airways
Wed 10/1217:20SFO - LHR
1 stop14h 15mBritish Airways
Deal found 25/11£462
Fri 12/1211:45LHR - SFO
Nonstop11h 15mBritish Airways
Sun 11/120:40SFO - LHR
Nonstop10h 30mBritish Airways
Deal found 25/11£463
Wed 3/1206:50LCY - SFO
1 stop16h 45mBritish Airways
Wed 10/1217:20SFO - LCY
1 stop20h 10mBritish Airways
Deal found 25/11£463
Thu 4/1217:55LHR - SFO
2 stops29h 40mBritish Airways
Thu 11/1206:00SFO - LHR
1 stop18h 35mBritish Airways
Deal found 24/11£464
Tue 2/1206:50LCY - SFO
1 stop16h 45mBritish Airways
Tue 9/1217:20SFO - LCY
1 stop16h 10mBritish Airways
Deal found 24/11£464
Fri 12/1211:40LHR - SFO
Nonstop11h 00mDelta
Wed 24/1209:53SFO - LHR
1 stop16h 07mDelta
Deal found 26/11£464
Wed 3/1206:30LHR - SFO
1 stop17h 05mBritish Airways
Fri 12/1217:20SFO - LHR
1 stop15h 15mBritish Airways
Deal found 25/11£465
Tue 2/1208:50LHR - SFO
1 stop14h 45mBritish Airways
Fri 12/1217:20SFO - LHR
1 stop13h 15mBritish Airways
Deal found 25/11£467
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 27 November 2025.
Mon 12/121:25LGW - SFO
2 stops49h 05mTAP AIR PORTUGAL
Mon 26/116:35SFO - LGW
1 stop15h 10mTAP AIR PORTUGAL
Deal found 24/11£449
Mon 27/406:45LCY - SFO
1 stop17h 00mBritish Airways
Mon 4/517:45SFO - LCY
1 stop19h 05mBritish Airways
Deal found 24/11£460
Wed 4/318:40LGW - SFO
1 stop29h 50mSWISS
Tue 10/320:25SFO - LGW
1 stop14h 25mSWISS
Deal found 24/11£461
Mon 19/109:00LHR - SFO
1 stop15h 30mUnited Airlines
Mon 2/222:50SFO - LHR
1 stop13h 45mUnited Airlines
Deal found 26/11£465
Thu 15/106:30LHR - SFO
1 stop13h 20mMultiple Airlines
Wed 21/116:30SFO - LHR
Nonstop10h 10mMultiple Airlines
Deal found 26/11£466
Thu 15/106:30LHR - SFO
1 stop13h 20mKLM
Tue 20/113:20SFO - LHR
1 stop12h 40mKLM
Deal found 26/11£466
Sun 15/318:55LCY - SFO
1 stop24h 55mVirgin Atlantic
Tue 31/313:45SFO - LCY
1 stop18h 55mVirgin Atlantic
Deal found 26/11£468
Mon 15/1208:55LHR - SFO
1 stop20h 04mDelta
Mon 5/122:54SFO - LHR
1 stop25h 51mDelta
Deal found 26/11£475
Tue 28/406:45LCY - SFO
1 stop17h 00mBritish Airways
Tue 5/517:45SFO - LCY
1 stop19h 55mBritish Airways
Deal found 25/11£460
Thu 15/106:30LHR - SFO
1 stop13h 20mMultiple Airlines
Thu 22/116:30SFO - LHR
Nonstop10h 10mMultiple Airlines
Deal found 26/11£466
Tue 13/120:05LHR - SFO
1 stop28h 25mSWISS
Wed 21/111:45SFO - LHR
2 stops20h 35mSWISS
Deal found 26/11£467
Wed 25/209:00LHR - SFO
1 stop15h 30mUnited Airlines
Tue 3/300:43SFO - LHR
1 stop22h 47mUnited Airlines
Deal found 26/11£467
Thu 15/110:10LGW - SFO
2 stops37h 55mTAP AIR PORTUGAL
Wed 28/116:35SFO - LGW
1 stop33h 15mTAP AIR PORTUGAL
Deal found 24/11£473
Tue 16/1211:40LHR - SFO
Nonstop11h 00mDelta
Mon 5/122:54SFO - LHR
1 stop25h 51mDelta
Deal found 26/11£475
Tue 28/406:45LCY - SFO
1 stop17h 00mBritish Airways
Tue 19/517:45SFO - LCY
1 stop19h 55mBritish Airways
Deal found 25/11£461
Thu 9/419:00LCY - SFO
1 stop24h 45mVirgin Atlantic
Mon 13/415:00SFO - LCY
2 stops19h 30mVirgin Atlantic
Deal found 26/11£515
Sun 7/1211:40LHR - SFO
Nonstop11h 00mDelta
Sun 14/1221:41SFO - LHR
1 stop25h 09mDelta
Deal found 26/11£476
Wed 4/209:35LGW - SFO
2 stops62h 30mTAP AIR PORTUGAL
Wed 18/216:35SFO - LGW
1 stop33h 15mTAP AIR PORTUGAL
Deal found 26/11£476
Fri 16/112:40LTN - SFO
2 stops33h 55mMultiple Airlines
Sat 24/116:40SFO - LTN
2 stops21h 35mMultiple Airlines
Deal found 24/11£482
Wed 4/218:40LGW - SFO
1 stop29h 50mSWISS
Sun 8/219:25SFO - LGW
1 stop14h 25mSWISS
Deal found 23/11£491
Tue 24/206:50LCY - SFO
1 stop16h 45mBritish Airways
Tue 3/317:20SFO - LCY
1 stop20h 10mBritish Airways
Deal found 25/11£467
Mon 16/320:05LCY - SFO
1 stop23h 45mVirgin Atlantic
Sun 5/407:25SFO - LCY
2 stops17h 25mVirgin Atlantic
Deal found 26/11£539
Thu 12/213:45STN - SFO
2 stops32h 50mMultiple Airlines
Thu 19/216:40SFO - STN
3 stops22h 40mMultiple Airlines
Deal found 25/11£491
Wed 28/118:40LGW - SFO
1 stop29h 50mSWISS
Thu 5/219:25SFO - LGW
2 stops31h 15mSWISS
Deal found 26/11£494
Wed 14/109:35LGW - SFO
2 stops62h 30mTAP AIR PORTUGAL
Wed 28/116:35SFO - LGW
1 stop33h 15mTAP AIR PORTUGAL
Deal found 26/11£508
Tue 28/410:45LHR - SFO
Nonstop11h 05mBritish Airways
Tue 5/519:30SFO - LHR
Nonstop10h 25mBritish Airways
Deal found 25/11£470
Wed 21/117:05LCY - SFO
1 stop26h 45mVirgin Atlantic
Mon 26/108:00SFO - LCY
2 stops17h 30mVirgin Atlantic
Deal found 25/11£546
Sun 18/111:35STN - SFO
2 stops35h 00mMultiple Airlines
Sun 25/116:40SFO - STN
2 stops24h 10mMultiple Airlines
Deal found 25/11£498
Sat 13/1210:10LGW - SFO
2 stops60h 25mTAP AIR PORTUGAL
Sat 10/116:35SFO - LGW
1 stop33h 15mTAP AIR PORTUGAL
Deal found 26/11£511
Fri 26/1209:10LCY - SFO
1 stop14h 25mBritish Airways
Tue 6/117:20SFO - LCY
1 stop19h 20mBritish Airways
Deal found 25/11£472
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 27 November 2025.
Fri 20/211:45LHR - SFO
Nonstop11h 15mIberia
Wed 25/217:30SFO - LHR
Nonstop10h 30mIberia
Deal found 23/11£451
Sat 14/211:45LHR - SFO
Nonstop11h 15mBritish Airways
Fri 13/318:30SFO - LHR
Nonstop10h 30mBritish Airways
Deal found 25/11£454
Wed 15/410:45LHR - SFO
Nonstop11h 05mBritish Airways
Thu 30/416:35SFO - LHR
Nonstop10h 25mBritish Airways
Deal found 25/11£455
Fri 13/215:25LHR - SFO
Nonstop11h 20mBritish Airways
Tue 17/220:40SFO - LHR
Nonstop10h 30mBritish Airways
Deal found 24/11£455
Wed 21/111:45LHR - SFO
Nonstop11h 15mBritish Airways
Mon 26/120:40SFO - LHR
Nonstop10h 30mBritish Airways
Deal found 25/11£456
Thu 25/1211:45LHR - SFO
Nonstop11h 15mBritish Airways
Sat 10/120:40SFO - LHR
Nonstop10h 30mBritish Airways
Deal found 24/11£457
Wed 14/111:45LHR - SFO
Nonstop11h 15mBritish Airways
Wed 21/117:30SFO - LHR
Nonstop10h 30mBritish Airways
Deal found 24/11£458
Fri 27/211:45LHR - SFO
Nonstop11h 15mAmerican Airlines
Fri 13/321:40SFO - LHR
Nonstop10h 30mAmerican Airlines
Deal found 24/11£458
Thu 11/1215:25LHR - SFO
Nonstop11h 20mBritish Airways
Sat 27/1220:40SFO - LHR
Nonstop10h 30mBritish Airways
Deal found 24/11£462
Fri 12/1211:45LHR - SFO
Nonstop11h 15mBritish Airways
Sun 11/120:40SFO - LHR
Nonstop10h 30mBritish Airways
Deal found 25/11£463
Sat 17/111:45LHR - SFO
Nonstop11h 15mBritish Airways
Sun 18/120:40SFO - LHR
Nonstop10h 30mBritish Airways
Deal found 24/11£464
Last-minute flights from London to San Francisco
Discover last-minute flight deals from London to San Francisco. Data last updated 27 November 2025 and is based on user searches.
Tue 2/1211:50LHR - SFO
1 stop14h 34mBritish Airways
Thu 19/321:40SFO - LHR
Nonstop10h 30mBritish Airways
Deal found 25/11£458
Tue 2/1206:50LCY - SFO
1 stop16h 45mBritish Airways
Tue 9/1217:20SFO - LCY
1 stop16h 10mBritish Airways
Deal found 24/11£464
Wed 3/1206:50LCY - SFO
1 stop16h 45mBritish Airways
Wed 10/1217:20SFO - LCY
1 stop20h 10mBritish Airways
Deal found 25/11£463
Thu 4/1217:55LHR - SFO
2 stops29h 40mBritish Airways
Tue 9/1217:20SFO - LHR
1 stop14h 15mBritish Airways
Deal found 24/11£453
Fri 5/1208:20LHR - SFO
1 stop17h 00mFinnair
Sat 13/1200:25SFO - LHR
1 stop22h 55mFinnair
Deal found 24/11£457
Wed 10/1219:30LHR - SFO
1 stop27h 05mScandinavian Airlines
Fri 9/116:40SFO - LHR
2 stops17h 50mScandinavian Airlines
Deal found 24/11£445
Thu 11/1215:35LHR - SFO
1 stop16h 36mFinnair
Sat 27/1220:40SFO - LHR
Nonstop10h 30mFinnair
Deal found 24/11£454
Fri 12/1214:10LHR - SFO
2 stops27h 32mAmerican Airlines
Wed 7/107:00SFO - LHR
1 stop18h 15mAmerican Airlines
Deal found 24/11£455
Fri 12/1206:05LHR - SFO
2 stops24h 23mFinnair
Tue 6/117:05SFO - LHR
2 stops29h 45mFinnair
Deal found 24/11£458
Fri 12/1220:45LHR - SFO
1 stop26h 50mBritish Airways
Wed 7/120:40SFO - LHR
Nonstop10h 30mBritish Airways
Deal found 24/11£459
Mon 15/1207:50LHR - SFO
1 stop15h 45mBritish Airways
Thu 8/117:30SFO - LHR
Nonstop10h 30mBritish Airways
Deal found 24/11£443
Thu 25/1208:20LHR - SFO
1 stop16h 44mBritish Airways
Sat 10/120:40SFO - LHR
Nonstop10h 30mBritish Airways
Deal found 24/11£455
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 27 November 2025.
Sat 6/1220:15LGW - SFO
1 stop31h 55mMultiple Airlines
Deal found 24/11£376
Thu 4/1217:00LTN - SFO
2 stops31h 05mMultiple Airlines
Deal found 24/11£377
Tue 5/521:10LHR - SFO
3 stops32h 14mMultiple Airlines
Deal found 26/11£377
Wed 18/307:10SEN - SFO
1 stop21h 00mMultiple Airlines
Deal found 26/11£377
Thu 12/321:40LTN - SFO
3 stops31h 21mMultiple Airlines
Deal found 26/11£378
Wed 25/310:05LHR - SFO
Nonstop11h 15mAustrian Airlines
Deal found 26/11£378
Wed 10/1206:50LTN - SFO
3 stops25h 33mMultiple Airlines
Deal found 25/11£379
Wed 17/1207:50LHR - SFO
1 stop15h 45mAer Lingus
Deal found 25/11£379
Thu 4/1217:25LGW - SFO
2 stops30h 40mMultiple Airlines
Deal found 24/11£379
Fri 8/509:15LCY - SFO
1 stop14h 50mLufthansa
Deal found 26/11£379
Sat 7/313:45LHR - SFO
Nonstop11h 15mAustrian Airlines
Deal found 24/11£380
Wed 10/1206:05LGW - SFO
3 stops26h 18mMultiple Airlines
Deal found 25/11£380
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 27 November 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
LGW - SFO
LGWSFO
London Gatwick
Mon 12/1
21:25-14:30
2 stops49h 05m
San Francisco
Mon 26/1
16:35-15:45
1 stop15h 10m
£449
LondonSan Francisco
LCY - SFO
LCYSFO
London City
Mon 27/4
06:45-15:45
1 stop17h 00m
San Francisco
Mon 4/5
17:45-20:50
1 stop19h 05m
£460
LondonSan Francisco
LCY - SFO
LCYSFO
London City
Tue 28/4
06:45-15:45
1 stop17h 00m
San Francisco
Tue 5/5
17:45-21:40
1 stop19h 55m
£460
LondonSan Francisco
LCY - SFO
LCYSFO
London City
Tue 28/4
06:45-15:45
1 stop17h 00m
San Francisco
Tue 19/5
17:45-21:40
1 stop19h 55m
£461
LondonSan Francisco
LGW - SFO
LGWSFO
London Gatwick
Wed 4/3
18:40-16:30
1 stop29h 50m
San Francisco
Tue 10/3
20:25-17:50
1 stop14h 25m
£461
LondonSan Francisco
LHR - SFO
LHRSFO
London Heathrow
Mon 19/1
09:00-16:30
1 stop15h 30m
San Francisco
Mon 2/2
22:50-20:35
1 stop13h 45m
£465
LondonSan Francisco
LHR - SFO
LHRSFO
London Heathrow
Thu 15/1
06:30-11:50
1 stop13h 20m
San Francisco
Wed 21/1
16:30-10:40
Nonstop10h 10m
£466
LondonSan Francisco
LHR - SFO
LHRSFO
London Heathrow
Thu 15/1
06:30-11:50
1 stop13h 20m
San Francisco
Tue 20/1
13:20-10:00
1 stop12h 40m
£466
LondonSan Francisco
LHR - SFO
LHRSFO
London Heathrow
Thu 15/1
06:30-11:50
1 stop13h 20m
San Francisco
Thu 22/1
16:30-10:40
Nonstop10h 10m
£466
LondonSan Francisco
LHR - SFO
LHRSFO
London Heathrow
Tue 13/1
20:05-16:30
1 stop28h 25m
San Francisco
Wed 21/1
11:45-16:20
2 stops20h 35m
£467
Flights are sorted by cheapest return flights first.
Deals found on 24/11
Showing 1-10 of 60 results
1
2
3
...
6
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 21 November 2025.
To ensure you get the cheapest price possible for a flight from London to San Francisco, you should look to book at least 51 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, April is the cheapest month in which you can book a flight from London to San Francisco (average of £345). Flying from London to San Francisco in July is currently the most expensive (average of £464). 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 27 November 2025.
Unlike at midday, when flights are generally more expensive, you can save up to 9% on flights from London to San Francisco by exploring options for tickets 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 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 Friday evenings when fares are most often at their lowest. Sunday 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 27 November 2025.
The most flights from LON to SFO are scheduled on a Monday (31 on average). You will have fewer flight options on Thursday, which is when the least amount of flights are scheduled (25 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 31% 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.
Lisbon (LIS) is the most affordable one-stop option, with an average return flight price of £383.
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.
How often are flights from London to San Francisco delayed?
About 13% of weekly flights between London and San Francisco have experienced delays in the past year, with the average delay time being 140 minutes.
What is the most punctual flight time for London to San Francisco flights?
Historically, flights departing in the morning are less likely to be delayed, whereas flights leaving in the evening tend to experience delays more often.
What day of the week experiences the fewest flight delays on this route?
Tuesday tends to have the lowest number of delays on this route, whereas Sunday has historically faced a higher average of delays compared to other days of the week.
Which airline has the best punctuality record on London to San Francisco flights?
Over the past year, Virgin Atlantic have had the lowest number of delays on this route, with just 12% of flights being delayed.
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 27 November 2025.
Read reviews from past customers who have flown with KLM, Virgin Atlantic, andUnited Airlines
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.
The food option was finished and what wa left was vegan pasta so I had to go without food for an 8 hour flight without any sort of empathy from crew that was mean.
The food option was finished and what wa left was vegan pasta so I had to go without food for an 8 hour flight without any sort of empathy from crew that was mean.
The food option was finished and what wa left was vegan pasta so I had to go without food for an 8 hour flight without any sort of empathy from crew that was mean.
The food option was finished and what wa left was vegan pasta so I had to go without food for an 8 hour flight without any sort of empathy from crew that was mean.
The food option was finished and what wa left was vegan pasta so I had to go without food for an 8 hour flight without any sort of empathy from crew that was mean.
The food option was finished and what wa left was vegan pasta so I had to go without food for an 8 hour flight without any sort of empathy from crew that was mean.
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 30 inbound flights from London per day. You should also have plenty of airline options to choose from since 18 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 17h. Fly via TAP AIR PORTUGAL, British Airways, or SWISS to get the fastest option. London and San Francisco are separated by a distance of 5363 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 £242. Additional return tickets that might be worth considering are offered by Air Canada and Aer Lingus, with the lowest prices starting at £341 and £358, 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 British Airways, which is currently one of the cheapest options available, starting at £379. United Airlines flights start at £380 while deals on Iberia 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 Air New Zealand (84%), Air France (82%) or Delta (82%) 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 £337. On average you can expect to pay £2,149. The most popular route, (London Heathrow - San Francisco), can usually be booked for £361.
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, Rådhuspladsen, and Opera House are currently the most popular points of interest in Copenhagen at the moment. Tivoli, Rådhuspladsen, and Opera House can be accessed by travelling approximately 5.3 mi, 5.2 mi, and 4.9 mi, respectively from Kastrup Copenhagen. Travellers can book a car hire at Kastrup Copenhagen for about £25 per day to make their sightseeing more efficient.
What are some popular points of interest to see during a stopover in Lisbon?
Chiado, Londres, and Sé de Lisboa are the most popular attractions in Lisbon if you're in need of something to do during your stopover. Chiado, Londres, and Sé de Lisboa can be accessed by travelling approximately 4.5 mi, 2.3 mi, and 4.6 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 £11 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, April is the cheapest month in which you can book a flight from London to San Francisco (average of £345). Flying from London to San Francisco in July is currently the most expensive (average of £464). 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
San Bruno
South San Francisco
Bodega Bay
Pacific Grove
Browse thousands of different options on Cheapflights for your next trip
Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.
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 27 November 2025.
Explore flights to San Francisco departing from other origins. Flights are based on user searches made on Cheapflights and were last updated on 27 November 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 27 November 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!
100% Free
Cheapflights is completely free to use, so you can start saving the moment you arrive.
Book with Flexibility
Our users can plan ahead with confidence and find flights with no change fees
Travel Smart
Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.
We value your privacy
Cheapflights and its partners wish to use cookies or similar technologies to store and/or access information on and about your device and process personal data such as your IP address, device identifiers etc., in order to improve your experience on the site, to analyse navigation, to offer and measure personalised advertising, and to facilitate sharing on social networks. We also allow the use of third-party cookies (including those from our advertising partners) on our sites.
By clicking 'Accept', you consent to your data being processed by 0 vendors on this web site for the purposes described in this notice. You can review the vendors and their individual processing purposes on the .
To review individual processing purposes and cookie categories, please click ’Select individual purposes’. You can review your choices and withdraw your consent at any time by clicking the ’Privacy Preferences’ link in the page side navigation.