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Not ready to book? to track prices.Find the cheapest flights from London Heathrow Airport to San Francisco
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Lufthansa flights from London Heathrow Airport to San Francisco
Our best Lufthansa deals on London Heathrow Airport to San Francisco flight tickets
Austrian Airlines flights from London Heathrow Airport to San Francisco
Our best Austrian Airlines deals on London Heathrow Airport to San Francisco flight tickets
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How to get the cheapest flight ticket from London Heathrow Airport 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 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 Heathrow Airport during November instead. Flights to San Francisco in November, while not as cheap as those in February, still average around $909.
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 Heathrow Airport. The lowest ticket price found for a Wednesday departure recently was $981. 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 Heathrow Airport to San Francisco for around $4,489.
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 Heathrow Airport to San Francisco in the morning for as low as $1,784. 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 $2,293 on average. Flights to San Francisco from London Heathrow Airport at midday are generally more expensive because this time of day is more convenient for travellers’ schedules.
What is the cheapest London Heathrow to San Francisco flight route?
Fly from London Heathrow to San Francisco for the best London Heathrow - 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 Heathrow Airport when booking 15 weeks ahead of your departure date. In general, you can expect to find flights to San Francisco for around $1,058 when searching 15 weeks out.However, flight prices might be lower outside of this timeframe. For example, people recently found flights to San Francisco from London Heathrow Airport for as low as $961 on momondo.
What cabin class options are available on London Heathrow to San Francisco flights?
There are 2 cabin classes available to choose from on London Heathrow 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 Heathrow Airport to San Francisco flights?
You could potentially save up to 7% on your flight if you consider stops on a London Heathrow Airport to San Francisco flight.
How have London Heathrow Airport to San Francisco flight prices changed over time?
As of June 2025, prices for London Heathrow Airport to San Francisco flights are approximately 14% more expensive when compared to flights at the same time last year.
How many flights depart from London Heathrow Airport to San Francisco on average per day?
The number of flights available between London Heathrow Airport and San Francisco is 41 per day as of June 2025. The most frequent departure time is 10:00, with 59% of daily flights leaving in the afternoon.
How many flights depart from London Heathrow Airport to San Francisco on average per week?
As of June 2025, 288 flights take off from London Heathrow Airport 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 Heathrow Airport to San Francisco
Cheap London Heathrow Airport to San Francisco (LHR to SFO) flight deals and tips
Find info about flight duration, direct flights, and airports for your flight from London Heathrow Airport to San Francisco
Best price found | $916 |
|---|---|
Fastest flight time | 10h 20m |
Direct flights | Every day |
Airports in San Francisco | 1 airport |
How far is London Heathrow to San Francisco by plane?
A flight from London Heathrow to San Francisco will travel around 8596.0 km. 10h 20m is a normal flight duration for this route.
When did momondo last update prices for flights from London Heathrow Airport to San Francisco Airport?
Prices for flights from London Heathrow Airport to San Francisco Airport are refreshed on a daily basis.
How old do you have to be to fly from London Heathrow Airport to San Francisco Airport?
Although the minimum age for a child to fly alone is five, airlines that offer an unaccompanied minor (UMNR) service may have their own age limits, which could be impacted by factors such as flight length, timing, and stopovers. It is recommended that you verify with the airline you are booking with for travel from London Heathrow Airport to San Francisco Airport.
What documentation or ID do you need to fly to San Francisco Airport?
The travel and health documents you'll need for your trip to San Francisco Airport may differ based on your itinerary and personal situation. Typically, you should have several documents on hand, such as a national ID card or driver's licence and a passport that is valid for six months after your intended arrival at San Francisco Airport. It is always advisable to seek advice from your airline or a trusted third party, such as IATA.
What is the most popular plane model from London Heathrow Airport to San Francisco?
momondo data reveals that the most frequently booked plane model on the route from London Heathrow Airport to San Francisco is Boeing 777, representing 36.42% of all bookings. The subsequent popular models are Boeing 787-9 Dreamliner at 27.72%, Airbus A380-800 at 16.94%, and Boeing 777-300ER at 6.68%.
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?
It is quick and easy to find London to San Francisco flights on momondo. We search and return numerous flight options from various airlines and agents. You can then use our filters to narrow your search until you have found the most convenient flight to San Francisco that suits you.
Can I find flights from London to San Francisco with flexible booking policies on momondo?
Yes. momondo allows you to filter the results for London to San Francisco flights to just show those with flexible booking policies.
How can momondo help me find flights from London to San Francisco?
momondo helps you find the best flight between London and San Francisco by providing filters to narrow your choice of flights to those matching your criteria. You can select flights based on numerous factors such as price, departure and landing times, airport and airline.
I’m not ready to book a flight from London to San Francisco right now. Can momondo alert me if prices change?
Of course. momondo tracks the price of London to San Francisco flights. All you need is a valid email address and we will do the rest; it is that quick and easy.