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Not ready to book? to track prices.Find the cheapest flights from London to San Francisco
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Scandinavian Airlines flights from London to San Francisco
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TAP AIR PORTUGAL flights from London to San Francisco
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How to get the cheapest flight ticket from London to San Francisco
Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip
What is the typical price of a round-trip flight between London and San Francisco?
What is the cheapest month to fly to San Francisco?
If you aren’t able to travel during the month of February, then book flights to San Francisco from London during November instead. Flights to San Francisco in November, while not as cheap as those in February, still average around $893.
What is the cheapest day to depart on your flight to San Francisco?
According to our data, Wednesday is the cheapest day to fly to San Francisco from London. The lowest ticket price found for a Wednesday departure recently was $971. Keep in mind that prices can always vary depending on your route and whether or not you are flying domestic or international. When flying out on a Tuesday, the most expensive travel day of the week, you can expect to see flight prices from London to San Francisco for around $3,444.
What is the cheapest time of day to depart on your flight to San Francisco?
According to our data, the cheapest time of day to fly to San Francisco is in the morning. momondo users have found flights departing from London to San Francisco in the morning for as low as $1,673. Keep in mind that these prices may fluctuate based on what airline you choose and the time of year you plan to travel. If you have a flexible travel schedule, then try to avoid flying at midday when prices are $2,270 on average. Flights to San Francisco from London at midday are generally more expensive because this time of day is more convenient for travellers’ schedules.
What is the cheapest London to San Francisco flight route?
Fly from London Heathrow to San Francisco for the best London - San Francisco flight prices
How far in advance should I book a flight to San Francisco?
You are more likely to see cheaper flights to San Francisco from London when booking weeks ahead of your departure date. In general, you can expect to find flights to San Francisco for around $1,043 when searching weeks before you fly. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to San Francisco from London for as low as $950 on momondo.
What cabin class options are available on London to San Francisco flights?
There are 2 cabin classes available to choose from on London to San Francisco flights. Cabin price and availability will vary by airline so perform a search above to find the right deals for you.
Can stopping save me money on London to San Francisco flights?
No. A direct flight is the cheapest option for a flight between London to San Francisco.
How have London to San Francisco flight prices changed over time?
As of July 2025, prices for London to San Francisco flights are approximately 25% more expensive when compared to flights at the same time last year.
How many flights depart from London to San Francisco on average per day?
As of July 2025, there are 41 flights per day flying from London to San Francisco. The most common time of day flights depart is 10:00, with 59% of flights taking off in the afternoon.
How many flights depart from London to San Francisco on average per week?
As of July 2025, 288 flights take off from London and land in San Francisco each week. The most common flight departure day for this route is Mon, with 15% of weekly flights taking off on this day.
When to book flights from London to San Francisco
Cheap London to San Francisco (LON to SFO) flight deals and tips
Find info about flight duration, direct flights, and airports for your flight from London to San Francisco
Best price found | $491 |
|---|---|
Fastest flight time | 10h 55m |
Direct flights | Every day |
Airports in San Francisco | 1 airport |
How far is London to San Francisco by plane?
The straight-line distance from London to San Francisco is 8609.4 km. Typically, this will take 10h 55m by plane in normal conditions.
When did momondo last update prices for flights from London to San Francisco Airport?
Prices for flights from London to San Francisco Airport refresh daily.
How old do you have to be to fly from London to San Francisco Airport?
The minimum age for a child to fly alone is five, but airlines offering an unaccompanied minor (UNMR) service may have their age restrictions, such as regulations concerning flight duration, timing, and stopovers. It is recommended that you verify with the airline you are booking with for travel from London to San Francisco Airport.
What documentation or ID do you need to fly to San Francisco Airport?
The travel and health documents required for your trip to San Francisco Airport can vary based on your itinerary and personal situation. As a rule, consider having multiple documents such as a national ID card or driver’s licence, and a passport valid for six-months after you plan to arrive at San Francisco Airport. We always recommend checking with your airline or a trusted third party such as IATA to get advice.
What is the most popular plane model from London to San Francisco?
momondo data reveals that the most frequently booked plane model on the route from London to San Francisco is Boeing 777, representing 36.42% of all bookings. The subsequent popular models are Boeing 787-9 Dreamliner at 29.12%, Airbus A380-800 at 15.30%, and Boeing 787 Dreamliner at 6.89%.
Travelling to a place near San Francisco?
Book flights to San Francisco if you plan to visit one of these locationsWhy use momondo?
Why should I use momondo to find a flight deal from London to San Francisco?
To find the flight that best suits your needs, momondo gathers a range of flights from a large pool of different airlines and agents; you can then use our insights and filters to find and book the right flight to San Francisco from London.
Can I find flights from London to San Francisco with flexible booking policies on momondo?
Yes. All flights to San Francisco from London on momondo can be compared and filtered by various policies on offer, including flexible booking.
How can momondo help me find flights from London to San Francisco?
Once you have performed a search for London to San Francisco flights, momondo helps you find the right one by offering useful filters to narrow down your flight selection. Flights can be filtered by multiple factors such as airline, airport and price; but also by other criteria like aircraft type and payment method.
I’m not ready to book a flight from London to San Francisco right now. Can momondo alert me if prices change?
Price alerts on flights to San Francisco from London are quick and easy to set up on momondo. Simply perform a search and select the price alert feature. It is as simple as that.