Cheap flights from San Francisco (SFO) to London (LON) from $217
This is the cheapest one-way flight price, found on 9/27. Prices may vary by date and flight preferences.
The best prices from San Francisco to London are usually found in March or February, booked 60 days in advance, depart on a Tuesday or Thursday and return on a Thursday
How to find the cheapest flight from San Francisco (SFO) to London (LON)
All the information you need to plan the best SFO to LON flight in 2023: compare San Francisco to London flight prices with the expected peak season, weather and rainfall in London.
Popular in | July |
|---|---|
Cheapest in | March |
Round-trip from | $618 |
One-way from | $284 |
SFO - LON Price | $618 - $1,177 |
|---|---|
LON Temperature | 39.2 - 62.6 °F |
LON Rainfall | 1.6 - 2.8 inches |
What is the cheapest day to fly round-trip from San Francisco to London?
Leaving on a Monday is a viable option for saving on travel. Heavily demanded days of the week can typically drive up the prices you see. Booking your travel for a less competitive day can save up to 14% on the overall cost on flights from San Francisco to London.
How far in advance should I book a flight from San Francisco to London?
Find a great deal and save up to 19% by booking at least 60 days prior to your desired departure date, rather than waiting until the week of travel. According to our data, there are a number of flights available from San Francisco to London within the next two weeks, with the cheapest ticket starting at $988.
What is the cheapest month to fly from San Francisco to London?
March is one of the best times of the year to fly to London from San Francisco. Prices for March average $821 per person but you can even find prices for as low as $580. The most expensive prices can be found in the month of July. Opting for a March flight can save you 36% on your journey compared to booking in July
When is the cheapest time to fly from San Francisco to London (SFO - LON)?
One of the essential ways to save on airfare from San Francisco to London is to remain as flexible as possible. Flights that are at noon tend to be the most expensive. A flight in the afternoon could potentially save you up to 7% on airfare.
Cheap United Airlines flights from San Francisco to London
Take a peek at the cheapest United Airlines flights we've detected traveling from San Francisco to London. Make sure to double check the flight details before booking.
If you’re traveling from San Francisco to London, one of the more common airlines traveling that route is United Airlines. Flights from United Airlines traveling this route typically cost $825.25 RT. This price is typically 78% more expensive than other airlines that offer San Francisco to London flights. When booking this route, the cheapest RT price found was $583. The most popular departure airport in San Francisco when flying to London is San Francisco Airport. The most popular airport to fly into when visiting London is London Heathrow Airport. When flying from San Francisco to London, United Airlines flights are 5% more popular than any other airline flying that same route.
Cheap Delta flights from San Francisco to London
Some of the lowest-priced Delta flights we've found at this time heading from San Francisco to London. Check back soon if you're not seeing flights that suit your needs.
One of the most popular airlines traveling from San Francisco to London is Delta. Flights from Delta traveling this route typically cost $1,071.10 RT. This price is typically 61% cheaper than other airlines that offer San Francisco to London flights. When booking this route, the cheapest RT price found was $604. San Francisco Airport is the most common San Francisco airport to take off from when flying to London. London Heathrow Airport is the most popular arrival airport in London. When flying from San Francisco to London, Delta flights are 1% more popular than any other airline flying that same route.
Cheap San Francisco to London flights in September & October 2023
The best prices found for SFO to LON flights for September, October
The lowest fares we've come across on flights traveling from San Francisco to London in September and October 2023. For more flight deals, be sure to check back very soon.
San Francisco to London 2023 flight deals
Cheap flights to London from San Francisco found for this year
The lowest fares we've come across on flights traveling from San Francisco to London in September and October 2023. For more flight deals, be sure to check back very soon.
Non-stop flights to London from San Francisco
Save time with San Francisco to London direct flight deals
For a shorter flight, select one of these non-stop flights from San Francisco to London. Users seeking other options on flights from San Francisco to London should update the search form at the top of the page.
San Francisco to London flights leaving soon
Late deals on return flights to London from San Francisco, departing today and this week
Have a look at some of the last-minute flights available departing from San Francisco to London. To prevent any unwanted surprises, users should verify their flight info before booking.
One-way flights to London from San Francisco
The cheapest one-way flights from San Francisco to London
If you're seeking multiple options on one-way flights from San Francisco to London, be sure to check out these deals, which are updated often. Users needing a return flight from San Francisco to London should utilize the search form above.
Find flights from San Francisco to London within your budget
Use the slider to find flights from San Francisco to London that fit your budget.
Fly from
Fly to
Budget
$469 - $615
Route
Depart
Return
Price
San FranciscoLondon Gatwick
SFO - LGW
SFOLGW
San Francisco
Sat 2/10
2 stops20h 15m
London Gatwick
Mon 2/12
1 stop29h 40m
San FranciscoLondon Heathrow
SFO - LHR
SFOLHR
San Francisco
Wed 11/1
1 stop15h 25m
London Heathrow
Wed 11/8
1 stop16h 10m
San FranciscoLondon Gatwick
SFO - LGW
SFOLGW
San Francisco
Wed 10/25
2 stops18h 35m
London Gatwick
Tue 10/31
2 stops35h 49m
San FranciscoLondon Gatwick
SFO - LGW
SFOLGW
San Francisco
Tue 12/5
1 stop27h 00m
London Gatwick
Wed 4/24
1 stop28h 50m
San FranciscoLondon Heathrow
SFO - LHR
SFOLHR
San Francisco
Wed 10/11
Nonstop10h 25m
London Heathrow
Wed 10/18
2 stops22h 00m
San FranciscoLondon Gatwick
SFO - LGW
SFOLGW
San Francisco
Tue 10/31
1 stop13h 05m
London Gatwick
Sat 11/11
1 stop14h 40m
San FranciscoLondon Heathrow
SFO - LHR
SFOLHR
San Francisco
Thu 10/26
1 stop14h 55m
London Heathrow
Thu 11/2
Nonstop11h 10m
San FranciscoLondon Heathrow
SFO - LHR
SFOLHR
San Francisco
Tue 10/31
Nonstop10h 25m
London Heathrow
Tue 11/7
Nonstop11h 20m
San FranciscoLondon Gatwick
SFO - LGW
SFOLGW
San Francisco
Thu 10/19
1 stop15h 10m
London Gatwick
Thu 10/26
1 stop19h 37m
Reviews of airlines servicing London
To help decide which airline to fly from San Francisco to London, see what other customers have to say about United Airlines, Delta and TAP AIR PORTUGAL. In addition to providing an overall rating, users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
Boarding
Overall
Entertainment
Food
Comfort
Crew
Reviews
Most importantly it was on time, then great crew, great service and comfortable.
Boarding
Overall
Entertainment
Food
Comfort
Crew
Reviews
Most importantly it was on time, then great crew, great service and comfortable.
Boarding
Overall
Entertainment
Food
Comfort
Crew
Reviews
Most importantly it was on time, then great crew, great service and comfortable.
Boarding
Overall
Entertainment
Food
Comfort
Crew
Reviews
Most importantly it was on time, then great crew, great service and comfortable.
Boarding
Overall
Entertainment
Food
Comfort
Crew
Reviews
Most importantly it was on time, then great crew, great service and comfortable.
Boarding
Overall
Entertainment
Food
Comfort
Crew
Reviews
Most importantly it was on time, then great crew, great service and comfortable.
Related info for your journey
Useful info, stats and facts about San Francisco to London flights.
What airport do you fly from for flights from San Francisco to London?
Most people fly from San Francisco (SFO) if they book a flight from San Francisco to London. On average, San Francisco has 28 outbound flights to London per day from 22 airlines. San Francisco is conveniently located just 11.8 mi from San Francisco’s city center.
Can I find flights from San Francisco to London for under $500 on Cheapflights?
Yes, there are multiple flights from San Francisco to London for under $500. The cheapest flight booked recently is on TAP AIR PORTUGAL for just $469, but on average you can expect to pay $517.
Are there nonstop flights from San Francisco to London for under $600 on Cheapflights?
Cheapflights has at least 20 direct flights from San Francisco to London under $600. A good price for a nonstop flight from San Francisco to London is less than $632.
Are there last-minute flights available from San Francisco to London for under $600?
There are currently 20+ open flights from San Francisco to London within the next 7 days for less than $600.
What days are nonstop flights available from San Francisco to London?
Nonstop flights are available for this route on the following days: Monday, Saturday.
How many flights depart from San Francisco to London on average per day?
On average 1 flight departs from San Francisco to London per day.
Afternoon (Noon - 6pm) - 100% of flight departures
How long is the flight from San Francisco to London?
A quick flight from San Francisco to London can take about 15h 25m. TAP AIR PORTUGAL provides one of the quickest options available for as low as $469. The distance between San Francisco and London is about 5383 mi. When browsing for deals, the options you’ll see will be for both nonstop flights and flights with stops.
What are the cheapest airlines flying from San Francisco to London round-trip?
Currently priced at $469, TAP AIR PORTUGAL will fly you from San Francisco to London and back. In addition to TAP AIR PORTUGAL, many other airlines offer competitively priced options for your trip. Check Cheapflights for deals on Scandinavian Airlines for as low as $526. You may be able to fly from San Francisco to London for 42% less than the average price by searching for these airlines.
What are the most popular routes from San Francisco to London?
The most popular route from San Francisco to London is San Francisco - London Heathrow. You may also consider San Francisco - London Gatwick or San Francisco - London City.
What are the most popular airlines that fly from San Francisco to London?
Before booking your flight from San Francisco to London check out the most popular airlines for this route: American Airlines, Air Canada or Air France.
What are the most reliable airlines from San Francisco to London?
Looking for the most reliable airlines to get you to your destination on time? Our data shows these are most likely to get you from San Francisco to London on time: Air Canada (76%), Austrian Airlines (76%), United Airlines (76%).
What are the cheapest flights from San Francisco to London?
On average you can expect to pay $1,575 for a flight from San Francisco to London. The cheapest flight overall is $299 while the most popular route, (San Francisco - London Heathrow) is currently priced at $505.
What does SFO to LHR mean?
Great question - SFO to LHR just means San Francisco Airport to London Heathrow Airport. Now you’ll know what these unique codes when you look for flights! London Gatwick Airport (LGW), London Stansted Airport (STN), London City Airport (LCY), London Luton Airport (LTN), London Southend Airport (SEN) are other airports near this flight route and their unique identifiers/IATA codes.
Other flights from San Francisco
Top 10 airlines flying from San Francisco to London
The chart below displays the airlines Cheapflights users traveling from San Francisco to London choose most often. Cheapest and average prices are based on aggregated data from the past 12 months.
Fly your favorite airline from San Francisco
Hourly flight availability from San Francisco to London
See what time of day planes typically take off from San Francisco to London
| 1%of flight departures | Early morningMidnight to 6 am |
|---|---|
| 17%of flight departures | Morning6 am to noon |
| 39%of flight departures | AfternoonNoon to 6 pm |
| 43%of flight departures | Evening6 pm to midnight |
Weekly flight availability from San Francisco to London
See how many times per day planes take to the skies headed from San Francisco to London
| Sunday | 26daily flights |
|---|---|
| Monday | 31daily flights |
| Tuesday | 26daily flights |
| Wednesday | 31daily flights |
| Thursday | 26daily flights |
| Friday | 31daily flights |
| Saturday | 31daily flights |
Fly with Cheapflights
What makes Cheapflights the go-to destination for all your flight needs
How does Cheapflights help users find flights from San Francisco to London?
900+ travel sites are searched through when a user searches for a flight using Cheapflights. From the search interface, users can use filters to choose airlines, airports, flight times, cabin classes and more to their preference. Book your flight to London from San Francisco today with Cheapflights!
Why should you use Cheapflights to find cheap flight tickets from San Francisco to London?
Cheapflights helps you find that perfect flight to London from San Francisco by searching from hundreds of airlines and agencies you know and love. We are also free to use, in case you were wondering!
Can Cheapflights find flights from San Francisco to London with no change fees?
Cheapflights does show flights with no change fees to all users. To see these options for flights from San Francisco to London, users can toggle the no change fees filter when performing a flight search.
Can Cheapflights notify me if prices for flights from San Francisco to London become cheaper?
Yes, Cheapflights does offer price alerts on San Francisco to London flights so you can book your travels when it’s right. The Price Alert feature is available after a flight search is performed above.