Cheap flights from London to San Francisco
The best prices from London to San Francisco are usually found in February or March, booked 60 days in advance, depart on a Wednesday or Tuesday and return on a Thursday
How to find the cheapest flight from
London (LON) to San Francisco (SFO)
All the information you need to plan the best LON to SFO flight in 2022: compare London to San Francisco flight prices with the expected peak season, weather and rainfall in San Francisco.
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LON - SFO Price
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£526 - £719
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SFO Temperature
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11 - 17 °C
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SFO Rainfall
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0 - 112 mm
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Popular in December High demand for flights, 14% potential price rise |
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Cheapest in February Best time to find cheap flights, 15% potential price drop |
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Round-trip from £442 From London (LON) to San Francisco |
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One-way from £223 One-way flight from London (LON) to San Francisco |
When is the cheapest time to fly from London to San Francisco (LON - SFO)?
Unlike in the afternoon, when flights are generally more expensive, you can save up to 6% on flights from London to San Francisco by exploring options for tickets in the morning.
How far in advance should I book a flight from London to San Francisco?
When searching for a good deal, it’s best to be prepared for potential fluctuations in price. We recommend booking at least 61 days in advance, which can save you up to 27% on flights from London to San Francisco compared to booking the week you need them. Waiting 61 days out may not be for everyone, so we have options available for flights within the next two weeks, with the lowest price starting at £603. For sooner than that we have options available in the next 3 days from £679.
What is the cheapest day to fly round-trip from London to San Francisco?
Saturday flights are generally found to be more expensive for flights from London to San Francisco. This shouldn’t discourage you from searching, as you can still find great deals by being flexible with your options. Use our search form to find deals on tickets to San Francisco.
What is the cheapest month to fly from London to San Francisco?
February can be a great time to fly to San Francisco from London with a flight ticket averaging about £519. Cheapflights users have found deals in the month of February for as cheap as £343. The most expensive prices can be found in the month of December.
Cheap flights from London to San Francisco in July, August 2022
The best prices found for LON to SFO flights in July, August
London to San Francisco 2022 flight deals
Cheap flights to San Francisco from London found for this year
Cheap Lufthansa flights from London to San Francisco
Cheap Air France flights from London to San Francisco
Direct flights to San Francisco from London
Save time with London to San Francisco direct flight deals
Last-minute flights from London to San Francisco
Late deals on return flights to San Francisco from London, departing today and this week
One-way flights to San Francisco from London
The cheapest one-way flights from London to San Francisco
Related info for your journey
Useful info, stats and facts about <span class="emphasized">London</span> to <span class="emphasized">San Francisco</span> flights.
COVID Restrictions
View COVID Travel Restrictions for San Francisco, CAAlternative routes for London to San Francisco
See prices for flight routes from nearby airports that may be better suited for you.
Top 10 airlines flying from London to San Francisco
The chart below displays the airlines Cheapflights users travelling from London to San Francisco choose most often. Cheapest and average prices are based on aggregated data from the past 12 months.
Popular flight searches
Check out other popular destinations found by fellow travellers in 2022.
Hourly flight availability from London to San Francisco
See what time of day planes typically take off from London towards San Francisco.
| Morning 6 AM to midday | 51% of LON to US-SFO departures |
| Afternoon Midday to 6 PM | 48% of LON to US-SFO departures |
| Early morning Midnight to 6 AM | 1% of LON to US-SFO departures |
| Evening 6 PM to midnight | 0% of LON to US-SFO departures |