Cheap Flights from London to San Francisco starting at S$ 390

We've found these cheap flights for you. You can book one-way or return flight tickets.

Round-trip
One way

Crossed out prices are calculated based on the average price of the corresponding route on Trip.com.

Cheapest time to fly from London to San Francisco

We monitor flight fares to help you find the best deals effortlessly

Cheapest flights

From price

Mar

23 2
2 9
9 16
16 23
23 30
Apr

30 6
6 13
13 20
20 27
May

27 4
4 11
11 18

Displayed prices are calculated based on the lowest average weekly prices of the corresponding route on Trip.com.

Frequently Asked Questions

When to buy flight tickets from London (LON) to San Francisco (SFO) the cheapest?

Airlines adjust prices for flights from London to San Francisco based on the date and time of your booking. By analyzing data from all airlines, on Trip.com, you can find the cheapest flight prices on Tuesdays, Wednesdays, and Saturdays.
How much is a flight from London (LON) to San Francisco (SFO) cost?

According to Trip.com's data, the lowest price is around S$ 1,851.
How long is a flight from London (LON) to San Francisco (SFO)?

It takes about 11 hours 4 minutes to fly from London (LON) to San Francisco (SFO).
What is the transportation method from the main airport to downtown in San Francisco?
- The distance from San Francisco International Airport to downtown is about 17km, by taxi about 30 minutes.
What time does the earliest flight from London to San Francisco depart?

The earliest flight departs from London (LHR) at 09:55 and arrives in San Francisco (SFO) at 13:00.
What time does the latest flight from London to San Francisco depart?

The latest flight departs from London (LHR) at 17:20 and arrives in San Francisco (SFO) at 20:20.
What are the most popular airlines that fly from London (LON) to San Francisco (SFO)?

Airlines with flights from London (LON) to San Francisco (SFO): Delta Air Lines, IBERIA, Alaska Airlines, Lufthansa, Finnair, British Airways, American Airlines, Swiss Airlines, Air Canada, United Airlines, Brussels Airlines, Air New Zealand, Singapore Airlines and Aer Lingus.
What's the most popular airline for direct flights from London (LON) to San Francisco (SFO)?

Austrian Airlines operates 18 direct flights from London (LON) to San Francisco (SFO).
How many airports in San Francisco?

There are 1 airports near San Francisco: San Francisco International Airport.

How to find a cheap flight from London to San Francisco

Wait until the last minute and flight costs are often sky-high. Plan ahead, book the right way, and your savings can soar. We have loads of saving tips to help you find a cheap flight from London to San Francisco. Book your flights at the right time and save more.

Book Early

Once prices are gone, they're gone. Lock in deals while you can!

Compare Flight Prices

Compare prices on travel agency and airline websites.

Look Out for Deals

Check airline and travel agency websites for latest flight deals

Check One-way Fares

Buying two cheap one-way flights can sometimes be a better deal than a round-trip.

Try Different Dates

Flying during the week, early in the morning, or late at night can help save money.

Use the Trip.com App

Save up to £10 per person when booking your flights on Trip.com

Find cheapest flight ticket from London to San Francisco

Cheapest direct flight price	S$ 390
Cheapest return ticket price	S$ 685
Off-season for travel	May
Peak season for travel	November
Flight distance	8,628.48km
Average flight time	11 hours 4 minutes
Popular airline	Finnair