Fastest flight time
Airports in San Francisco
The cheapest time of year to fly to San Francisco from London Heathrow Airport is February. The most expensive is December.
51 days before
The cheapest time to buy a flight from London Heathrow Airport to San Francisco is approximately 51 days to departure
When you’re planning your trip from London to San Francisco, the most popular airport-to-airport route is London Heathrow Airport to San Francisco Airport. The cheapest route from London to San Francisco is LHR — SFO with an average price of $2,938 RT during the month of June.
Due to the global impact of COVID-19, some of our airline partners operating flights from London Heathrow to San Francisco, such as American Airlines may have flexible change policies in place. Use our site to search for all of the airlines offering this flexibility to you.
There are 8596.0 km between London Heathrow and San Francisco. In terms of flight time, this usually takes a little over 10h 55m.
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.
momondo does allow users to show only those flights to San Francisco from London which offer a flexible booking policy as well as other useful filters and features.
momondo provides multiple filters to help you find the best flight to San Francisco from London. Filter by price, airline, airports, cabin, aircraft, payment method, number of stops and more.
If you are simply researching potential flights to San Francisco, momondo offers a useful price alert feature which will track prices for flights to San Francisco from London and alert you when they change.