Cheap flights from London to San Francisco from £331
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 7/12. Fares are subject to change and may not be available on all flights or dates of travel.
LON — SFO
11 Nov — 18 Nov1
Return
1 adult
Economy
Return
1 adult, Economy
Cheapflights Tip: The best prices from London to San Francisco are usually found in February or September, booked 51 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 12 October 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 12 October 2025.
Wed 12/1106:00LHR - SFO
1 stop16h 30mTAP AIR PORTUGAL
Fri 5/1219:10SFO - LHR
1 stop15h 45mTAP AIR PORTUGAL
Deal found 11/10£381
Thu 20/1116:00LGW - SFO
1 stop32h 05mTAP AIR PORTUGAL
Fri 28/1119:10SFO - LGW
1 stop30h 40mTAP AIR PORTUGAL
Deal found 10/10£392
Wed 19/1106:00LHR - SFO
1 stop16h 30mTAP AIR PORTUGAL
Fri 28/1119:10SFO - LHR
1 stop15h 45mTAP AIR PORTUGAL
Deal found 10/10£397
Sat 8/1106:40LHR - SFO
1 stop15h 55mScandinavian Airlines
Sat 15/1116:40SFO - LHR
1 stop15h 20mScandinavian Airlines
Deal found 12/10£403
Fri 14/1106:40LHR - SFO
1 stop15h 55mScandinavian Airlines
Sun 16/1116:40SFO - LHR
1 stop15h 20mScandinavian Airlines
Deal found 11/10£404
Fri 7/1119:30LHR - SFO
1 stop27h 05mScandinavian Airlines
Fri 28/1116:40SFO - LHR
1 stop15h 20mScandinavian Airlines
Deal found 11/10£405
Tue 18/1116:35LGW - SFO
1 stop29h 55mTAP AIR PORTUGAL
Sat 6/1216:35SFO - LGW
2 stops20h 05mTAP AIR PORTUGAL
Deal found 10/10£405
Thu 13/1106:40LHR - SFO
1 stop15h 55mScandinavian Airlines
Sat 6/1216:40SFO - LHR
1 stop15h 20mScandinavian Airlines
Deal found 10/10£406
Sun 9/1118:40LHR - SFO
1 stop27h 55mScandinavian Airlines
Sun 16/1116:40SFO - LHR
1 stop17h 00mScandinavian Airlines
Deal found 11/10£407
Wed 5/1115:35LHR - SFO
2 stops31h 00mScandinavian Airlines
Mon 10/1116:40SFO - LHR
1 stop17h 50mScandinavian Airlines
Deal found 10/10£408
Tue 11/1116:35LGW - SFO
1 stop29h 55mTAP AIR PORTUGAL
Wed 10/1216:35SFO - LGW
1 stop33h 15mTAP AIR PORTUGAL
Deal found 10/10£409
Wed 12/1119:30LHR - SFO
1 stop27h 05mScandinavian Airlines
Sun 16/1116:40SFO - LHR
2 stops15h 45mScandinavian Airlines
Deal found 12/10£409
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 12 October 2025.
Mon 24/1106:40LHR - SFO
1 stop15h 55mScandinavian Airlines
Mon 1/1216:40SFO - LHR
2 stops19h 15mScandinavian Airlines
Deal found 10/10£428
Wed 4/209:35LGW - SFO
2 stops62h 30mTAP AIR PORTUGAL
Wed 18/216:35SFO - LGW
1 stop33h 15mTAP AIR PORTUGAL
Deal found 10/10£441
Mon 3/1111:55STN - SFO
2 stops33h 30mMultiple Airlines
Mon 10/1113:55SFO - STN
2 stops22h 05mMultiple Airlines
Deal found 11/10£450
Tue 25/1109:00LHR - SFO
1 stop15h 30mUnited Airlines
Mon 1/1200:43SFO - LHR
1 stop22h 47mUnited Airlines
Deal found 10/10£459
Mon 17/1106:30LHR - SFO
1 stop14h 10mLufthansa
Mon 1/1217:25SFO - LHR
Nonstop10h 35mLufthansa
Deal found 11/10£463
Fri 21/1116:45LCY - SFO
1 stop28h 20mITA Airways
Mon 24/1115:05SFO - LCY
1 stop17h 05mITA Airways
Deal found 10/10£521
Wed 12/1108:40LCY - SFO
2 stops17h 29mDelta
Mon 17/1113:55SFO - LCY
1 stop18h 40mDelta
Deal found 11/10£528
Thu 4/1221:05LHR - SFO
2 stops25h 30mScandinavian Airlines
Mon 8/1216:40SFO - LHR
2 stops19h 15mScandinavian Airlines
Deal found 12/10£432
Mon 17/1121:25LGW - SFO
2 stops49h 05mTAP AIR PORTUGAL
Mon 1/1216:35SFO - LGW
1 stop15h 10mTAP AIR PORTUGAL
Deal found 11/10£449
Tue 25/1109:00LTN - SFO
1 stop14h 35mMultiple Airlines
Sun 30/1118:20SFO - LTN
1 stop19h 40mMultiple Airlines
Deal found 11/10£451
Mon 3/1109:00LHR - SFO
1 stop15h 30mUnited Airlines
Tue 9/1217:25SFO - LHR
Nonstop10h 35mUnited Airlines
Deal found 10/10£459
Sun 11/119:50LHR - SFO
2 stops26h 45mScandinavian Airlines
Sun 18/116:40SFO - LHR
2 stops18h 10mScandinavian Airlines
Deal found 10/10£442
Mon 17/1109:50LCY - SFO
1 stop14h 05mLufthansa
Mon 1/1218:50SFO - LCY
1 stop13h 50mLufthansa
Deal found 11/10£488
Mon 24/1121:25LGW - SFO
2 stops49h 05mTAP AIR PORTUGAL
Mon 1/1216:35SFO - LGW
1 stop15h 10mTAP AIR PORTUGAL
Deal found 10/10£456
Mon 17/1109:00LHR - SFO
1 stop15h 30mMultiple Airlines
Mon 1/1208:25SFO - LHR
2 stops28h 10mMultiple Airlines
Deal found 11/10£460
Mon 17/1109:00LHR - SFO
1 stop15h 30mUnited Airlines
Mon 1/1212:50SFO - LHR
Nonstop10h 35mUnited Airlines
Deal found 10/10£461
Wed 12/1109:50LCY - SFO
1 stop14h 05mLufthansa
Mon 17/1118:50SFO - LCY
1 stop13h 50mLufthansa
Deal found 11/10£488
Tue 10/309:00LHR - SFO
1 stop15h 30mUnited Airlines
Tue 17/318:25SFO - LHR
Nonstop10h 35mUnited Airlines
Deal found 11/10£462
Mon 12/108:30STN - SFO
1 stop15h 05mMultiple Airlines
Mon 19/117:20SFO - STN
1 stop17h 00mMultiple Airlines
Deal found 11/10£471
Tue 11/1109:50LCY - SFO
1 stop14h 05mLufthansa
Mon 17/1118:50SFO - LCY
1 stop13h 50mLufthansa
Deal found 11/10£488
Sat 13/1210:10LGW - SFO
2 stops60h 25mTAP AIR PORTUGAL
Sat 10/116:35SFO - LGW
1 stop33h 15mTAP AIR PORTUGAL
Deal found 10/10£498
Wed 28/109:00LHR - SFO
1 stop15h 30mUnited Airlines
Mon 9/217:25SFO - LHR
Nonstop10h 35mUnited Airlines
Deal found 11/10£462
Tue 25/1109:00LTN - SFO
1 stop14h 35mMultiple Airlines
Tue 2/1217:20SFO - LTN
1 stop18h 45mMultiple Airlines
Deal found 11/10£478
Mon 17/1109:50LCY - SFO
1 stop14h 05mLufthansa
Tue 2/1218:50SFO - LCY
1 stop13h 50mLufthansa
Deal found 12/10£489
Sun 14/1210:40LGW - SFO
1 stop35h 55mTAP AIR PORTUGAL
Fri 23/119:10SFO - LGW
1 stop30h 40mTAP AIR PORTUGAL
Deal found 11/10£507
Wed 4/209:00LHR - SFO
1 stop15h 30mUnited Airlines
Wed 18/217:25SFO - LHR
Nonstop10h 35mUnited Airlines
Deal found 10/10£464
Tue 25/1108:30STN - SFO
1 stop15h 05mMultiple Airlines
Tue 2/1217:20SFO - STN
1 stop13h 00mMultiple Airlines
Deal found 10/10£480
Wed 11/309:50LCY - SFO
1 stop14h 05mLufthansa
Wed 18/319:55SFO - LCY
1 stop13h 45mLufthansa
Deal found 12/10£492
Tue 11/1116:35LGW - SFO
1 stop29h 55mTAP AIR PORTUGAL
Sat 15/1116:35SFO - LGW
1 stop33h 15mTAP AIR PORTUGAL
Deal found 11/10£512
Tue 18/1109:50LCY - SFO
1 stop14h 05mMultiple Airlines
Tue 9/1211:19SFO - LCY
2 stops17h 31mMultiple Airlines
Deal found 10/10£484
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 12 October 2025.
Tue 11/1110:05LHR - SFO
Nonstop11h 15mLufthansa
Mon 17/1117:25SFO - LHR
Nonstop10h 35mLufthansa
Deal found 11/10£450
Mon 24/1110:05LHR - SFO
Nonstop11h 15mLufthansa
Mon 1/1212:50SFO - LHR
Nonstop10h 35mLufthansa
Deal found 10/10£451
Mon 17/1110:05LHR - SFO
Nonstop11h 15mLufthansa
Mon 1/1212:50SFO - LHR
Nonstop10h 35mLufthansa
Deal found 10/10£456
Mon 3/1110:05LHR - SFO
Nonstop11h 15mLufthansa
Mon 10/1112:50SFO - LHR
Nonstop10h 35mLufthansa
Deal found 11/10£457
Tue 25/1111:40LHR - SFO
Nonstop11h 00mVirgin Atlantic
Tue 2/1216:30SFO - LHR
Nonstop10h 10mVirgin Atlantic
Deal found 11/10£459
Mon 17/1111:40LHR - SFO
Nonstop11h 00mVirgin Atlantic
Tue 2/1216:30SFO - LHR
Nonstop10h 10mVirgin Atlantic
Deal found 12/10£460
Tue 25/1110:05LHR - SFO
Nonstop11h 15mLufthansa
Tue 2/1217:25SFO - LHR
Nonstop10h 35mLufthansa
Deal found 10/10£462
Tue 18/1110:05LHR - SFO
Nonstop11h 15mLufthansa
Tue 9/1212:50SFO - LHR
Nonstop10h 35mLufthansa
Deal found 10/10£464
Wed 4/213:45LHR - SFO
Nonstop11h 15mLufthansa
Wed 18/212:50SFO - LHR
Nonstop10h 35mLufthansa
Deal found 11/10£466
Tue 18/1115:25LHR - SFO
Nonstop11h 20mBritish Airways
Tue 2/1217:30SFO - LHR
Nonstop10h 30mBritish Airways
Deal found 10/10£468
Tue 18/1115:25LHR - SFO
Nonstop11h 20mBritish Airways
Wed 3/1217:30SFO - LHR
Nonstop10h 30mBritish Airways
Deal found 10/10£469
Last-minute flights from London to San Francisco
Discover last-minute flight deals from London to San Francisco. Data last updated 12 October 2025 and is based on user searches.
Mon 3/1111:55STN - SFO
2 stops33h 30mMultiple Airlines
Mon 10/1113:55SFO - STN
2 stops22h 05mMultiple Airlines
Deal found 11/10£450
Mon 3/1109:15LCY - SFO
1 stop15h 15mSWISS
Mon 10/1119:25SFO - LCY
1 stop13h 40mSWISS
Deal found 12/10£462
Mon 10/1109:15LCY - SFO
1 stop15h 15mSWISS
Mon 24/1119:25SFO - LCY
1 stop13h 40mSWISS
Deal found 10/10£465
Tue 11/1109:50LCY - SFO
1 stop14h 05mMultiple Airlines
Mon 17/1119:25SFO - LCY
1 stop15h 15mMultiple Airlines
Deal found 11/10£448
Wed 12/1114:45STN - SFO
2 stops31h 50mMultiple Airlines
Mon 17/1116:40SFO - STN
2 stops20h 40mMultiple Airlines
Deal found 11/10£440
Thu 20/1117:50STN - SFO
2 stops30h 15mMultiple Airlines
Wed 26/1116:35SFO - STN
2 stops22h 05mMultiple Airlines
Deal found 10/10£462
Fri 21/1120:10STN - SFO
2 stops26h 35mMultiple Airlines
Sat 29/1116:35SFO - STN
2 stops20h 40mMultiple Airlines
Deal found 10/10£451
Mon 24/1109:50LCY - SFO
1 stop14h 05mMultiple Airlines
Mon 1/1219:25SFO - LCY
1 stop15h 15mMultiple Airlines
Deal found 10/10£450
Mon 24/1119:10LCY - SFO
1 stop29h 20mSWISS
Mon 1/1219:25SFO - LCY
1 stop29h 20mSWISS
Deal found 10/10£464
Tue 25/1108:30STN - SFO
1 stop15h 05mMultiple Airlines
Sun 30/1118:20SFO - STN
1 stop14h 15mMultiple Airlines
Deal found 11/10£445
Tue 25/1109:00LTN - SFO
1 stop14h 35mMultiple Airlines
Sun 30/1118:20SFO - LTN
1 stop19h 40mMultiple Airlines
Deal found 11/10£451
Tue 25/1109:15LCY - SFO
1 stop15h 15mSWISS
Tue 2/1219:25SFO - LCY
1 stop13h 40mSWISS
Deal found 11/10£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 12 October 2025.
Mon 23/219:40LHR - SFO
2 stops35h 48mBritish Airways
Deal found 12/10£331
Sun 7/1215:15SEN - SFO
2 stops31h 20mMultiple Airlines
Deal found 11/10£331
Fri 14/1118:30LHR - SFO
1 stop28h 15mTAP AIR PORTUGAL
Deal found 11/10£331
Thu 13/1119:55LHR - SFO
1 stop28h 10mTAP AIR PORTUGAL
Deal found 10/10£332
Wed 25/307:55LGW - SFO
1 stop20h 15mMultiple Airlines
Deal found 10/10£332
Sun 7/1220:05LCY - SFO
2 stops29h 35mVirgin Atlantic
Deal found 11/10£332
Wed 4/321:05LHR - SFO
3 stops33h 54mMultiple Airlines
Deal found 9/10£333
Fri 14/1116:40LGW - SFO
1 stop30h 05mTAP AIR PORTUGAL
Deal found 10/10£333
Mon 26/107:15SEN - SFO
3 stops37h 05mMultiple Airlines
Deal found 12/10£333
Tue 18/1119:40LHR - SFO
2 stops26h 50mMultiple Airlines
Deal found 12/10£334
Sun 9/1108:30LGW - SFO
1 stop19h 40mMultiple Airlines
Deal found 11/10£334
Thu 5/321:20STN - SFO
2 stops26h 45mMultiple Airlines
Deal found 9/10£334
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 12 October 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
Mon 24/11
06:40-14:35
1 stop15h 55m
San Francisco
Mon 1/12
16:40-19:55
2 stops19h 15m
£428
LondonSan Francisco
LHR - SFO
LHRSFO
London Heathrow
Thu 4/12
21:05-14:35
2 stops25h 30m
San Francisco
Mon 8/12
16:40-19:55
2 stops19h 15m
£432
LondonSan Francisco
LGW - SFO
LGWSFO
London Gatwick
Wed 4/2
09:35-16:05
2 stops62h 30m
San Francisco
Wed 18/2
16:35-09:50
1 stop33h 15m
£441
LondonSan Francisco
LHR - SFO
LHRSFO
London Heathrow
Sun 11/1
19:50-14:35
2 stops26h 45m
San Francisco
Sun 18/1
16:40-18:50
2 stops18h 10m
£442
LondonSan Francisco
LGW - SFO
LGWSFO
London Gatwick
Mon 17/11
21:25-14:30
2 stops49h 05m
San Francisco
Mon 1/12
16:35-15:45
1 stop15h 10m
£449
LondonSan Francisco
STN - SFO
STNSFO
London Stansted
Mon 3/11
11:55-13:25
2 stops33h 30m
San Francisco
Mon 10/11
13:55-20:00
2 stops22h 05m
£450
LondonSan Francisco
LTN - SFO
LTNSFO
London Luton
Tue 25/11
09:00-15:35
1 stop14h 35m
San Francisco
Sun 30/11
18:20-22:00
1 stop19h 40m
£451
LondonSan Francisco
LGW - SFO
LGWSFO
London Gatwick
Mon 24/11
21:25-14:30
2 stops49h 05m
San Francisco
Mon 1/12
16:35-15:45
1 stop15h 10m
£456
LondonSan Francisco
LHR - SFO
LHRSFO
London Heathrow
Tue 25/11
09:00-16:30
1 stop15h 30m
San Francisco
Mon 1/12
00:43-07:30
1 stop22h 47m
£459
LondonSan Francisco
LHR - SFO
LHRSFO
London Heathrow
Mon 3/11
09:00-16:30
1 stop15h 30m
San Francisco
Tue 9/12
17:25-12:00
Nonstop10h 35m
£459
Flights are sorted by cheapest return flights first.
Deals found on 11/10
Showing 1-10 of 60 results
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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 10 October 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, December is the cheapest month in which you can book a flight from London to San Francisco (average of £339). Flying from London to San Francisco in July is currently the most expensive (average of £459). 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 12 October 2025.
Unlike at midday, when flights are generally more expensive, you can save up to 14% 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 12 October 2025.
The most flights from LON to SFO are scheduled on a Friday (42 on average). You will have fewer flight options on Sunday, which is when the least amount of flights are scheduled (36 on average).
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 34% 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 £379.
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 12 October 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.
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 38 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 15h 30m. Fly via Scandinavian Airlines, TAP AIR PORTUGAL, or United Airlines 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 £239. Additional return tickets that might be worth considering are offered by Air Canada and Aer Lingus, with the lowest prices starting at £337 and £352, 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 Virgin Atlantic, which is currently one of the cheapest options available, starting at £332. TAP AIR PORTUGAL flights start at £335 while deals on Delta start at £339 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 Aeromexico (100%), KLM (86%) or Air France (86%) 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 £370. On average you can expect to pay £1,884. The most popular route, (London Heathrow - San Francisco), can usually be booked for £359.
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 £29 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 £12 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, December is the cheapest month in which you can book a flight from London to San Francisco (average of £339). Flying from London to San Francisco in July is currently the most expensive (average of £459). 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.
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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
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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 12 October 2025.
Explore flights to San Francisco departing from other origins. Flights are based on user searches made on Cheapflights and were last updated on 12 October 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 12 October 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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