LON - SFO
Find cheap flights from London to San Francisco from $547
This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight from London to San Francisco departing on 18/9. Fares are subject to change and may not be available on all flights or dates of travel. Click the price to replicate the search for this deal.
Search hundreds of travel sites at once for deals on flights to San Francisco
Cheap flight deals from London to San Francisco (LON-SFO)
Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from London to San Francisco that are departing in the next months. While these flights were available on KAYAK in the last 72 hours, prices and availability are subject to change and deals may expire.Flights from London to San Francisco - Travel Insights & Trends
Get data-powered insights and trends into flights from London to San Francisco to help you find the cheapest flights, the best time to fly and much more.
What is the cheapest London to San Francisco flight route?
Our data shows that the cheapest route for a one-way flight from London to San Francisco cost $435 and was between London Gatwick Airport and San Francisco. On average, the best prices are found if you fly this route.
What’s the cheapest day of the week to fly from London to San Francisco?
For London to San Francisco, Tuesday is the cheapest day to fly on average and Saturday is the most expensive. Flying from San Francisco back to London, the best deals are generally found on Monday, with Wednesday being the most expensive.
What is the cheapest month to fly from London to San Francisco?
The cheapest month for flights from London to San Francisco is February, where tickets cost $757 on average. On the other hand, the most expensive months are July and August, where the average cost of tickets is $1,282 and $1,193 respectively.
How far in advance should I book a flight from London to San Francisco?
To get a below average price on the flight from London to San Francisco, you should book around 2 weeks before departure. For the absolute cheapest price, our data suggests you should book 42 days before departure.
Which airlines provide the cheapest flights from London to San Francisco?
In the last 3 days, WestJet offered the best one-way deal for that route, at $820. KAYAK users also found London to San Francisco return flights on Delta from $778 and on British Airways from $800.
Which airlines fly most frequently between London and San Francisco?
British Airways connects London to San Francisco with up to 4 flights per day. United Airlines also offers 3 flights per day, while Virgin Atlantic follows with 3 flights per day.
Which airlines fly direct between London and San Francisco?
There are 3 airlines that fly direct from London to San Francisco. They are: British Airways, United Airlines and Virgin Atlantic. The cheapest price of all airlines flying this route was found with Virgin Atlantic at $867 for a one-way flight. On average, the best prices for this route can be found at British Airways.
How many flights are there between London and San Francisco per day?
Each day, there are between 10 and 11 nonstop flights that take off from London and land in San Francisco, with an average flight time of 11h 01m. The most common departure time is 10:00 and most flights take off in the morning. Each week, there are 71 flights. The most frequent day of departure is Friday, when 15% of all weekly flights depart. The fewest flights depart on a Tuesday.
Which cabin class options are there for flights between London and San Francisco?
There is only one cabin class option available for the route, which is Economy. Perform a search on KAYAK to find the latest prices and availability for all cabin fares, which differ across airlines.
How long does a flight from London to San Francisco take?
Direct flights from London generally make it to San Francisco in 10h 55m. The flying distance between the two cities is 13,878 km.
What’s the earliest departure time from London to San Francisco?
Early birds can take the earliest flight from London at 10:10 and will be landing in San Francisco at 13:15.
What’s the latest departure time from London to San Francisco?
If you prefer to fly at night, the latest flight from London to San Francisco jets off at 17:20 and lands at 20:20.
When to book flights from London to San Francisco
FAQs for booking flights from London to San Francisco
Top tips for finding a cheap flight from London to San Francisco
Prefer to fly direct from London to San Francisco?
Find which airlines fly direct from London to San Francisco, which days they fly and book direct flights.
Direct departures
London to San Francisco
Monday
Aer Lingus, Aeromexico, Air Canada, +15 more
Aer Lingus, Aeromexico, +16 more
14
15
Tuesday
Aer Lingus, Aeromexico, Air Canada, +15 more
Aer Lingus, Aeromexico, +16 more
14
15
Wednesday
Aer Lingus, Aeromexico, Air Canada, +15 more
Aer Lingus, Aeromexico, +16 more
14
15
Thursday
Aer Lingus, Aeromexico, Air Canada, +15 more
Aer Lingus, Aeromexico, +16 more
14
15
Friday
Aer Lingus, Aeromexico, Air Canada, +15 more
Aer Lingus, Aeromexico, +16 more
14
15
Saturday
Aer Lingus, Aeromexico, Air Canada, +15 more
Aer Lingus, Aeromexico, +16 more
14
15
Sunday
Aer Lingus, Aeromexico, Air Canada, +15 more
Aer Lingus, Aeromexico, +16 more
14
15
Direct returns
San Francisco to London
Monday
Aer Lingus, Aeromexico, Air Canada, +15 more
Aer Lingus, Aeromexico, +16 more
14
15
Tuesday
Aer Lingus, Aeromexico, Air Canada, +15 more
Aer Lingus, Aeromexico, +16 more
14
15
Wednesday
Aer Lingus, Aeromexico, Air Canada, +15 more
Aer Lingus, Aeromexico, +16 more
14
15
Thursday
Aer Lingus, Aeromexico, Air Canada, +15 more
Aer Lingus, Aeromexico, +16 more
14
15
Friday
Aer Lingus, Aeromexico, Air Canada, +15 more
Aer Lingus, Aeromexico, +16 more
14
15
Saturday
Aer Lingus, Aeromexico, Air Canada, +15 more
Aer Lingus, Aeromexico, +16 more
14
15
Sunday
Aer Lingus, Aeromexico, Air Canada, +15 more
Aer Lingus, Aeromexico, +16 more
14
15
Top airlines flying from London to San Francisco
Cabin crew on our flight showed lack of any customer service gruff and acting annoyed if you asked anything and I mean anything Example a man on the seat over dropped his beer on my husbands blanket We asked if we could switch out blankets cabin crew Said. No we don’t have any extras OK well can you take the wet one Cabin crew looked disgusted and annoyed Took it no OK or yes just a growl
Cabin crew on our flight showed lack of any customer service gruff and acting annoyed if you asked anything and I mean anything Example a man on the seat over dropped his beer on my husbands blanket We asked if we could switch out blankets cabin crew Said. No we don’t have any extras OK well can you take the wet one Cabin crew looked disgusted and annoyed Took it no OK or yes just a growl
Quick flight. But cabin crew were very noisy and talking too much, especially when we were seated at the back of the plane trying to sleep through the night .
My ticket was for Premium Economy and all the seats were taken, I was placed in Economy class and I’m looking for a refund.
Unfortunately delayed 2 hrs due to faulty tyre.. which had to be changed, but better safe than sorry.
The delay was an issue. Other than that. Every thing good
Staff didn’t check cabin well for landing seemed more interested in chatting to each other. Food was poor and differed from pre order.
Very good. Glad we had Premium for the flight out.
We flew Upper Class from London to The Turks and Caicos. Check in was amazing. Our ldriver too us directly to a special entrance to terminal 3. It took 10 minutes to check in and clear customs. Amazing! The VA lounge is large and comfortable. Boarding the flight was easy and without a wait. The crew was excellent. But the seats were awful, strange and uncomfortable. Having a comfortable flat bed seat is the reason we pays 1000s extra. The VA 787 uses a reverse herringbone configuration. Look it up. You have your back to the window and are facing the aisle with no privacy. Turning the seat into a bed requires assistance from the crew so not very spontaneous. . The food was ok. A bit tasteless and meager portions. Had to pay for WiFi. I believe VA has other configuration on their dream airbus flights. Lots of stuff about all this on YouTube where you can see what I have been describing. I can not recommend taking VA on a long flight with these seats.
From the start everything was perfectly fine. First meal was fantastic. Breakfast needs a lot of work and food was overcooked and not very nice for breakfast. Staff for a fantastic friendly nice we came round and check we need anything else to eat or drink
From the start everything was perfectly fine. First meeting was fantastic. Breakfast needs a lot of work and food was overcooked and not very nice for breakfast.
my original flight was cancelled the previous day, and i was rescheduled onto this flight, which left much earlier in the morning, impacting my previous evening and requiring me to get up much earlier in the morning to get to the airport online. This practice happens way way way too much, and it seems on every airline, though AA is probably the worst.
The crew was very attentive and kept busy serving a variety of treats!
Offered vegetable curry when it was actually tofu which I don’t care for.
The flight was good the crew excellent…but take off delayed three hours!!!
Both mine and my husband's chairs were broken. Also it took 2 hours to get our bags after our flight which was wild.
perhaps eye contact with the cabin crew, instead of abruptness and an impatience to serve.
Not enough trash pickups throughout the flight. Everything else was great.
Overall good, the gluten free food is very hit/miss though and you must tell them you have an allergy days in advance.
All was good. The headphones they supply are of poor quality. The food is good but too much dairy.
Seating space was crowded and I am a very small woman.
Book cheap flights from London to San Francisco
Recent one-way flight deals
Search by stops
Search by airline
Search by price
Last minute flights from London to San Francisco
Last minute flight, train and bus deals
Search by stops
Search by airline
Search by price
Flights to San Francisco
Browse origins:
- Flights »
- London