Cheap flights from London to San Francisco from £354
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 12/3. Fares are subject to change and may not be available on all flights or dates of travel.
LON — SFO
14 Mar — 21 Mar1
Return
1 adult
Economy
Return
1 adult, Economy, 0 bags
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 Thursday or Wednesday and return on a Wednesday
Cheap flight deals from London to San Francisco
Enter your travel dates to find the best prices.
Cheapest
Best
Direct
Last-minute
One-way
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 12 February 2026.
Wed 15/408:40
LHR
-
SFO
1 stop15h 35m
United Airlines
Thu 30/412:50
SFO
-
LHR
Nonstop10h 35m
United Airlines
Deal found 9/2£365
Thu 9/409:25
LGW
-
SFO
1 stop14h 50m
SWISS
Sun 10/519:35
SFO
-
LGW
1 stop14h 15m
SWISS
Deal found 10/2£366
Sat 28/209:00
LHR
-
SFO
1 stop15h 30m
Multiple Airlines
Wed 1/412:50
SFO
-
LHR
Nonstop10h 35m
Multiple Airlines
Deal found 10/2£367
Thu 19/209:15
LCY
-
SFO
1 stop15h 15m
SWISS
Wed 4/319:25
SFO
-
LCY
1 stop13h 40m
SWISS
Deal found 11/2£367
Tue 22/908:45
LHR
-
SFO
2 stops17h 56m
Air Canada
Tue 29/911:10
SFO
-
LHR
1 stop14h 50m
Air Canada
Deal found 10/2£368
Wed 15/418:35
LGW
-
SFO
1 stop29h 40m
SWISS
Thu 30/414:00
SFO
-
LGW
1 stop19h 50m
SWISS
Deal found 11/2£368
Sat 18/407:25
LHR
-
SFO
1 stop15h 05m
United Airlines
Fri 24/405:00
SFO
-
LHR
1 stop20h 40m
United Airlines
Deal found 9/2£368
Thu 26/218:40
LGW
-
SFO
1 stop29h 50m
SWISS
Sun 1/319:25
SFO
-
LGW
1 stop14h 25m
SWISS
Deal found 9/2£368
Wed 22/406:30
LHR
-
SFO
1 stop14h 10m
Multiple Airlines
Tue 28/412:50
SFO
-
LHR
Nonstop10h 35m
Multiple Airlines
Deal found 9/2£369
Mon 20/406:30
LHR
-
SFO
1 stop14h 10m
Multiple Airlines
Tue 28/419:30
SFO
-
LHR
Nonstop10h 40m
Multiple Airlines
Deal found 10/2£370
Mon 9/318:40
LGW
-
SFO
1 stop29h 50m
SWISS
Mon 16/320:25
SFO
-
LGW
1 stop14h 25m
SWISS
Deal found 9/2£370
Thu 22/1008:40
LHR
-
SFO
1 stop15h 35m
United Airlines
Wed 4/1113:55
SFO
-
LHR
1 stop15h 35m
United Airlines
Deal found 9/2£370
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 February 2026.
Tue 12/508:45
LHR
-
SFO
1 stop15h 40m
United Airlines
Tue 19/519:40
SFO
-
LHR
Nonstop10h 30m
United Airlines
Deal found 10/2£365
Wed 8/408:40
LHR
-
SFO
1 stop15h 35m
Multiple Airlines
Mon 20/412:50
SFO
-
LHR
Nonstop10h 35m
Multiple Airlines
Deal found 11/2£365
Mon 20/406:30
LHR
-
SFO
1 stop14h 10m
Lufthansa
Tue 28/413:50
SFO
-
LHR
1 stop13h 55m
Lufthansa
Deal found 9/2£369
Wed 8/409:15
LGW
-
SFO
1 stop15h 00m
SWISS
Mon 20/419:35
SFO
-
LGW
1 stop14h 15m
SWISS
Deal found 11/2£387
Wed 25/217:05
LCY
-
SFO
1 stop26h 45m
Virgin Atlantic
Wed 4/305:45
SFO
-
LCY
2 stops19h 05m
Virgin Atlantic
Deal found 11/2£415
Fri 6/306:50
LCY
-
SFO
1 stop16h 45m
British Airways
Mon 9/318:20
SFO
-
LCY
1 stop19h 20m
British Airways
Deal found 10/2£432
Mon 20/410:25
LGW
-
SFO
1 stop15h 35m
Delta
Thu 7/515:05
SFO
-
LGW
1 stop16h 55m
Delta
Deal found 9/2£461
Tue 24/216:35
LGW
-
SFO
1 stop29h 55m
TAP AIR PORTUGAL
Sat 28/216:35
SFO
-
LGW
2 stops33h 30m
TAP AIR PORTUGAL
Deal found 11/2£473
Mon 20/410:50
STN
-
SFO
1 stop37h 50m
Turkish Airlines
Thu 7/518:45
SFO
-
STN
1 stop31h 10m
Turkish Airlines
Deal found 9/2£690
Wed 15/408:40
LHR
-
SFO
1 stop15h 35m
United Airlines
Fri 8/522:35
SFO
-
LHR
1 stop24h 20m
United Airlines
Deal found 10/2£365
Mon 23/307:40
LHR
-
SFO
1 stop19h 55m
Multiple Airlines
Sat 4/413:20
SFO
-
LHR
1 stop16h 00m
Multiple Airlines
Deal found 11/2£367
Mon 20/406:30
LHR
-
SFO
1 stop14h 10m
Lufthansa
Mon 27/419:30
SFO
-
LHR
Nonstop10h 40m
Lufthansa
Deal found 10/2£370
Wed 15/408:40
LHR
-
SFO
1 stop15h 35m
United Airlines
Fri 24/416:35
SFO
-
LHR
Nonstop10h 35m
United Airlines
Deal found 11/2£365
Thu 26/219:10
LCY
-
SFO
1 stop29h 20m
SWISS
Thu 5/319:25
SFO
-
LCY
1 stop15h 20m
SWISS
Deal found 11/2£406
Wed 22/406:30
LHR
-
SFO
1 stop14h 10m
Multiple Airlines
Tue 28/412:50
SFO
-
LHR
Nonstop10h 35m
Multiple Airlines
Deal found 10/2£370
Tue 10/308:40
LCY
-
SFO
2 stops20h 56m
Virgin Atlantic
Tue 17/305:50
SFO
-
LCY
2 stops18h 25m
Virgin Atlantic
Deal found 10/2£434
Mon 11/506:55
LHR
-
SFO
1 stop15h 35m
United Airlines
Mon 18/522:35
SFO
-
LHR
1 stop24h 20m
United Airlines
Deal found 9/2£368
Thu 5/307:15
LCY
-
SFO
2 stops23h 34m
British Airways
Thu 12/306:21
SFO
-
LCY
2 stops27h 04m
British Airways
Deal found 11/2£450
Wed 1/410:25
LGW
-
SFO
1 stop15h 35m
Delta
Thu 9/415:05
SFO
-
LGW
1 stop16h 55m
Delta
Deal found 11/2£465
Mon 13/407:25
LHR
-
SFO
1 stop15h 05m
United Airlines
Fri 8/516:35
SFO
-
LHR
Nonstop10h 35m
United Airlines
Deal found 10/2£368
Tue 26/520:15
LCY
-
SFO
1 stop23h 30m
Virgin Atlantic
Tue 2/613:45
SFO
-
LCY
1 stop18h 55m
Virgin Atlantic
Deal found 11/2£452
Sun 22/218:55
LCY
-
SFO
2 stops35h 54m
British Airways
Sun 1/318:20
SFO
-
LCY
1 stop15h 10m
British Airways
Deal found 11/2£454
Wed 8/418:35
LGW
-
SFO
2 stops34h 46m
Multiple Airlines
Mon 20/419:35
SFO
-
LGW
1 stop14h 15m
Multiple Airlines
Deal found 11/2£414
Mon 23/221:25
LGW
-
SFO
2 stops49h 05m
TAP AIR PORTUGAL
Sat 28/216:35
SFO
-
LGW
2 stops20h 05m
TAP AIR PORTUGAL
Deal found 10/2£515
Wed 8/410:25
LGW
-
SFO
2 stops20h 35m
Delta
Mon 20/411:00
SFO
-
LGW
2 stops20h 45m
Delta
Deal found 11/2£469
Mon 13/407:25
LHR
-
SFO
1 stop15h 05m
United Airlines
Thu 30/412:05
SFO
-
LHR
1 stop14h 05m
United Airlines
Deal found 10/2£368
Tue 17/318:40
LGW
-
SFO
1 stop29h 50m
SWISS
Tue 31/314:30
SFO
-
LGW
2 stops19h 20m
SWISS
Deal found 11/2£493
Wed 4/307:45
LCY
-
SFO
2 stops20h 11m
Virgin Atlantic
Tue 10/307:00
SFO
-
LCY
2 stops17h 15m
Virgin Atlantic
Deal found 9/2£462
Mon 2/313:50
LTN
-
SFO
2 stops32h 45m
Multiple Airlines
Sun 8/317:40
SFO
-
LTN
2 stops21h 20m
Multiple Airlines
Deal found 12/2£432
Sun 22/221:25
LGW
-
SFO
2 stops25h 10m
TAP AIR PORTUGAL
Mon 2/316:35
SFO
-
LGW
1 stop15h 10m
TAP AIR PORTUGAL
Deal found 9/2£524
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 February 2026.
Fri 27/213:45
LHR
-
SFO
Nonstop11h 15m
Multiple Airlines
Fri 6/312:50
SFO
-
LHR
Nonstop10h 35m
Multiple Airlines
Deal found 11/2£368
Mon 2/310:05
LHR
-
SFO
Nonstop11h 15m
Multiple Airlines
Sun 8/318:25
SFO
-
LHR
Nonstop10h 35m
Multiple Airlines
Deal found 9/2£369
Sat 28/213:45
LHR
-
SFO
Nonstop11h 15m
Lufthansa
Sat 21/313:50
SFO
-
LHR
Nonstop10h 35m
Lufthansa
Deal found 12/2£370
Wed 25/213:45
LHR
-
SFO
Nonstop11h 15m
Austrian Airlines
Wed 11/318:25
SFO
-
LHR
Nonstop10h 35m
Austrian Airlines
Deal found 9/2£371
Wed 25/210:05
LHR
-
SFO
Nonstop11h 15m
Austrian Airlines
Wed 4/312:50
SFO
-
LHR
Nonstop10h 35m
Austrian Airlines
Deal found 9/2£372
Wed 4/315:25
LHR
-
SFO
Nonstop11h 20m
British Airways
Wed 25/318:30
SFO
-
LHR
Nonstop10h 30m
British Airways
Deal found 10/2£373
Tue 17/310:05
LHR
-
SFO
Nonstop11h 15m
Multiple Airlines
Tue 24/313:50
SFO
-
LHR
Nonstop10h 35m
Multiple Airlines
Deal found 9/2£373
Thu 26/213:45
LHR
-
SFO
Nonstop11h 15m
Multiple Airlines
Thu 5/312:50
SFO
-
LHR
Nonstop10h 35m
Multiple Airlines
Deal found 10/2£374
Sat 14/310:05
LHR
-
SFO
Nonstop11h 15m
Multiple Airlines
Sat 28/312:50
SFO
-
LHR
Nonstop10h 35m
Multiple Airlines
Deal found 9/2£375
Sat 28/210:05
LHR
-
SFO
Nonstop11h 15m
Lufthansa
Sat 28/312:50
SFO
-
LHR
Nonstop10h 35m
Lufthansa
Deal found 9/2£378
Fri 27/213:45
LHR
-
SFO
Nonstop11h 15m
Multiple Airlines
Thu 5/312:50
SFO
-
LHR
Nonstop10h 35m
Multiple Airlines
Deal found 10/2£379
Last-minute flights from London to San Francisco
Discover last-minute flight deals from London to San Francisco. Data last updated 12 February 2026 and is based on user searches.
Wed 18/213:45
LHR
-
SFO
Nonstop11h 15m
Brussels Airlines
Sat 7/312:50
SFO
-
LHR
Nonstop10h 35m
Brussels Airlines
Deal found 9/2£369
Wed 18/210:05
LHR
-
SFO
Nonstop11h 15m
Multiple Airlines
Sat 7/312:50
SFO
-
LHR
Nonstop10h 35m
Multiple Airlines
Deal found 10/2£370
Thu 19/209:15
LCY
-
SFO
1 stop15h 15m
SWISS
Wed 4/319:25
SFO
-
LCY
1 stop13h 40m
SWISS
Deal found 11/2£367
Fri 20/206:00
LHR
-
SFO
1 stop18h 30m
Multiple Airlines
Thu 5/312:50
SFO
-
LHR
Nonstop10h 35m
Multiple Airlines
Deal found 9/2£370
Wed 25/213:45
LHR
-
SFO
Nonstop11h 15m
Austrian Airlines
Wed 11/318:25
SFO
-
LHR
Nonstop10h 35m
Austrian Airlines
Deal found 9/2£371
Thu 26/218:40
LGW
-
SFO
1 stop29h 50m
SWISS
Sun 1/319:25
SFO
-
LGW
1 stop14h 25m
SWISS
Deal found 9/2£368
Fri 27/218:40
LGW
-
SFO
1 stop29h 50m
SWISS
Thu 5/319:25
SFO
-
LGW
1 stop14h 25m
SWISS
Deal found 10/2£370
Sat 28/209:00
LHR
-
SFO
1 stop15h 30m
Multiple Airlines
Thu 2/412:50
SFO
-
LHR
Nonstop10h 35m
Multiple Airlines
Deal found 10/2£367
Fri 6/306:50
LHR
-
SFO
2 stops22h 32m
Multiple Airlines
Wed 11/315:40
SFO
-
LHR
1 stop18h 10m
Multiple Airlines
Deal found 10/2£368
Mon 9/318:40
LGW
-
SFO
1 stop29h 50m
SWISS
Mon 16/320:25
SFO
-
LGW
1 stop14h 25m
SWISS
Deal found 9/2£370
Fri 20/309:00
LHR
-
SFO
1 stop15h 30m
United Airlines
Tue 7/416:35
SFO
-
LHR
Nonstop10h 35m
United Airlines
Deal found 11/2£366
Mon 23/311:10
LHR
-
SFO
1 stop16h 25m
Lufthansa
Mon 30/316:35
SFO
-
LHR
Nonstop10h 35m
Lufthansa
Deal found 11/2£365
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 February 2026.
Thu 12/315:30
LHR
-
SFO
3 stops32h 35m
Multiple Airlines
Deal found 11/2£354
Thu 19/220:45
LHR
-
SFO
1 stop26h 50m
Aer Lingus
Deal found 11/2£355
Mon 23/306:35
LHR
-
SFO
1 stop21h 00m
Lufthansa
Deal found 11/2£356
Tue 17/317:20
STN
-
SFO
3 stops37h 35m
Multiple Airlines
Deal found 11/2£356
Mon 13/419:15
LCY
-
SFO
2 stops32h 30m
SWISS
Deal found 11/2£356
Mon 16/219:45
LHR
-
SFO
1 stop27h 50m
Aer Lingus
Deal found 11/2£357
Wed 8/409:15
LGW
-
SFO
1 stop15h 00m
SWISS
Deal found 11/2£357
Sun 15/321:40
STN
-
SFO
2 stops24h 55m
Multiple Airlines
Deal found 10/2£357
Thu 23/409:15
LCY
-
SFO
1 stop15h 00m
SWISS
Deal found 11/2£357
Fri 3/421:50
LTN
-
SFO
3 stops43h 40m
Multiple Airlines
Deal found 11/2£357
Wed 27/506:55
LHR
-
SFO
1 stop15h 25m
Lufthansa
Deal found 9/2£357
Tue 9/620:40
LGW
-
SFO
2 stops25h 55m
Multiple Airlines
Deal found 10/2£357
Find 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 February 2026.
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 February 2026.
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
Tue 12/5
08:45-16:25
1 stop15h 40m
San Francisco
Tue 19/5
19:40-14:10
Nonstop10h 30m
£365
LondonSan Francisco
LHR - SFO
LHRSFO
London Heathrow
Wed 8/4
08:40-16:15
1 stop15h 35m
San Francisco
Mon 20/4
12:50-07:25
Nonstop10h 35m
£365
LondonSan Francisco
LHR - SFO
LHRSFO
London Heathrow
Wed 15/4
08:40-16:15
1 stop15h 35m
San Francisco
Fri 8/5
22:35-06:55
1 stop24h 20m
£365
LondonSan Francisco
LHR - SFO
LHRSFO
London Heathrow
Wed 15/4
08:40-16:15
1 stop15h 35m
San Francisco
Fri 24/4
16:35-11:10
Nonstop10h 35m
£365
LondonSan Francisco
LHR - SFO
LHRSFO
London Heathrow
Mon 23/3
07:40-20:35
1 stop19h 55m
San Francisco
Sat 4/4
13:20-13:20
1 stop16h 00m
£367
LondonSan Francisco
LHR - SFO
LHRSFO
London Heathrow
Mon 11/5
06:55-14:30
1 stop15h 35m
San Francisco
Mon 18/5
22:35-06:55
1 stop24h 20m
£368
LondonSan Francisco
LHR - SFO
LHRSFO
London Heathrow
Mon 13/4
07:25-14:30
1 stop15h 05m
San Francisco
Fri 8/5
16:35-11:10
Nonstop10h 35m
£368
LondonSan Francisco
LHR - SFO
LHRSFO
London Heathrow
Mon 13/4
07:25-14:30
1 stop15h 05m
San Francisco
Thu 30/4
12:05-10:10
1 stop14h 05m
£368
LondonSan Francisco
LHR - SFO
LHRSFO
London Heathrow
Mon 20/4
06:30-12:40
1 stop14h 10m
San Francisco
Tue 28/4
13:50-11:45
1 stop13h 55m
£369
LondonSan Francisco
LHR - SFO
LHRSFO
London Heathrow
Mon 20/4
06:30-12:40
1 stop14h 10m
San Francisco
Mon 27/4
19:30-14:10
Nonstop10h 40m
£370
Flights are sorted by cheapest return flights first.
Deals found on 11/2
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.
LON-SFO
LHR-SFO
LCY-SFO
LGW-SFO
STN-SFO
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
LON-SFO
LHR-SFO
LCY-SFO
LGW-SFO
STN-SFO
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 6 February 2026.
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, February 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 £436). 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 February 2026.
Regardless of the time of day you decide to fly, the ticket price will remain around the same. Book flights from London to San Francisco as you normally would.
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 February 2026.
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).
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 £382.
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 15m.
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 07m.
How often are flights from London to San Francisco delayed?
About 12% of weekly flights between London and San Francisco have experienced delays in the past year, with the average delay time being 147 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 Wednesday 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 10% 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 12 February 2026.
Read reviews from past customers who have flown with Austrian Airlines, 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.
Awful . Flight was overbooked. The boarding cards could not be printed, you had to wait more than one hour in a line that only two kiosks were working, staff was leaving and inside the plane they had the same seats in 3 cases at least winter twice!! I’ve never experienced such a disorganization! Awful
Awful . Flight was overbooked. The boarding cards could not be printed, you had to wait more than one hour in a line that only two kiosks were working, staff was leaving and inside the plane they had the same seats in 3 cases at least winter twice!! I’ve never experienced such a disorganization! Awful
Awful . Flight was overbooked. The boarding cards could not be printed, you had to wait more than one hour in a line that only two kiosks were working, staff was leaving and inside the plane they had the same seats in 3 cases at least winter twice!! I’ve never experienced such a disorganization! Awful
Awful . Flight was overbooked. The boarding cards could not be printed, you had to wait more than one hour in a line that only two kiosks were working, staff was leaving and inside the plane they had the same seats in 3 cases at least winter twice!! I’ve never experienced such a disorganization! Awful
Awful . Flight was overbooked. The boarding cards could not be printed, you had to wait more than one hour in a line that only two kiosks were working, staff was leaving and inside the plane they had the same seats in 3 cases at least winter twice!! I’ve never experienced such a disorganization! Awful
Awful . Flight was overbooked. The boarding cards could not be printed, you had to wait more than one hour in a line that only two kiosks were working, staff was leaving and inside the plane they had the same seats in 3 cases at least winter twice!! I’ve never experienced such a disorganization! Awful
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 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. Fly via United Airlines, SWISS, or Virgin Atlantic to get the fastest option. London and San Francisco are separated by a distance of 5374 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 £233. Additional return tickets that might be worth considering are offered by Air Canada and United Airlines, with the lowest prices starting at £330 and £341, 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 £266. WestJet flights start at £295 while deals on Scandinavian Airlines start at £298 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 (82%), 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 £336. On average you can expect to pay £1,934. The most popular route, (London Heathrow - San Francisco), can usually be booked for £279.
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 £339). Flying from London to San Francisco in July is currently the most expensive (average of £436). 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
Bodega Bay
South San Francisco
Sunnyvale
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.
Airlines
Alternative routes
Complete your trip
Direct flights to California
Flights by cabin class
Other flight options
Other flights from London
Popular flights
San Francisco flight routes
Top destinations
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 February 2026.
Explore flights to San Francisco departing from other origins. Flights are based on user searches made on Cheapflights and were last updated on 12 February 2026.
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 February 2026.
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.