SFO - LON

Find Cheap Flights from San Francisco to London

Round-trip
Economy
San Francisco (SFO)
London All airports
Sat 7/20
Sat 7/27
Any month
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Good to Know

Low Season:
February
Best time to beat the crowds
4%
expected price decrease
High Season:
June
Most popular time to fly
17%
expected price increase
Average Price:
$660
(avg. price over the last 2 weeks)
Good Deal:
$437
or less (round trip)

When to Book Flights from San Francisco to London

Estimated round-trip price
Average price per month
Flight prices as travel date approaches
-1 day
-2 days

Top Tips for Finding a Cheap Flight

Looking for a cheap flight? 25% of our users found flights on this route for $436 or less.
The cheapest flight from San Francisco to London was found 77 days before departure, on average.
Book at least 4 weeks before departure in order to get a below-average price.
High season is considered to be May, June and July. The cheapest month to fly is February.
Morning departure is around 11% cheaper than an evening flight, on average*.
*Average of the lowest prices shown in KAYAK’s search results for departures within the next 30 days
Interested in flights from San Francisco to London? If so, there are three different airports that you can choose to depart from. While San Francisco International Airport is the primary airport in the region and offers a diverse selection of flights, Oakland International Airport is a smaller and quieter choice. San Jose Mineta International Airport is also an option that is practical for travelers leaving from the southern region of San Francisco.
When flying to London, there are five different airports that you can choose from. London Heathrow is the largest and is most convenient for those flying direct, while London City, London Stansted, and London Luton are best for travelers who prefer small and quiet airports. Finally, London Gatwick is a practical option for anyone planning on staying in the suburbs.
To get a direct flight from San Francisco to London, consider flying with either British Airways or American Airlines. Both companies are known for having a diverse selection of flights between these two locations, plus they offer affordable tickets and provide amenities such as free checked bags, food, and drinks.
If you’re interested in having a comfortable place to pass the time before your flight takes off, book your ticket with an airline that has a private lounge in San Francisco International Airport. American, Delta, and United Airlines all have private lounges in San Francisco, and they often offer access passes that are complimentary or reduced price for their customers.
For those who will be traveling with children, make sure to stop by one of the Stay and Play areas located in London Heathrow Airport. These play areas contain a variety of games, toys, and activities, making them the perfect way for children to burn off some energy after sitting for a long flight.
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