Cheap flights from London Heathrow to San Francisco

from as little as £374

7 nights in San Francisco, departing London Heathrow on 16 / Jan / 2023 with TAP Air Portugal (price found 12 hours ago)

Subject to availability, prices correct of the last 24 hours
San Francisco

Cheap return flights from London Heathrow to San Francisco

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The London Heathrow / San Francisco route

All 8622 km of it

Cheap flight deals for this route

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San Francisco flight facts

What you need to know

Alternative flights from the UK to San Francisco

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San Francisco

Today alone, Netflights has searched over 37,788 flights. 16 / Jan / 2023 is currently the lowest priced day of the year to fly the London Heathrow/San Francisco route. There are around 1,301 flights on any given week from the UK to San Francisco and the cheapest month to fly right now is January.

Min / Max Temperature (°C)
LOWEST

8 °C

AVG

14 °C

HIGHEST

21 °C

Rainfall (mm)
LOWEST

0 mm

AVG

44.8 mm

HIGHEST

112 mm

Key facts about San Francisco

How to get cheap flights from London Heathrow to San Francisco

Tips and advice from our flight experts

Search for cheap flights and last-minute deals with Netflights. We've scanned all the flights from London Heathrow to San Francisco, across the 18 airlines that offer this route. We've found that 16 / Jan / 2023 is the cheapest date to travel at the moment, but it's best to go through the results to see which flight suits you.

There are 1,301 flights from London Heathrow to or via San Francisco every week. Out of the 18 available airlines, the most popular ones are Lufthansa, Virgin Atlantic & SWISS. But that doesn’t necessarily mean they’ll be the best option for your travel dates. To see as many flights as possible, try widening your search to include other departure airports.

Your flight from London Heathrow to San Francisco will take at least 11 hrs. On average, it takes 13 hrs 10 mins to fly the 8622 km distance. Take a look at flight times to see which one works best for you.

January is normally the cheapest month to fly to San Francisco, but it’s important to try different options when you search. Searching by month, for instance, will show you the best time of the week to fly. August is always the most expensive time to fly but, if you check regularly and book early, you have a better chance of getting a good deal.

Other popular destinations near San Francisco

Where other people are flying to

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