Cheap flights from Heathrow to San Francisco

Flight FAQs

From Heathrow to San Francisco

Are flight prices decreasing from Heathrow to San Francisco due to COVID-19 (coronavirus)?

At this time, Cheapflights has noticed price decreases for many domestic flights due to COVID-19. Travel is not necessarily recommended at this time, and flights may be prone to cancellation: please check with local authorities in both Heathrow and San Francisco for travel alerts, and be sure to review the airline's cancellation policy and travel advisories before booking. For more information, please view our post on what to know about COVID-19 (coronavirus) and travel.

Can I find flights from Heathrow to San Francisco for under £400 on Cheapflights?

Yes, there are multiple flights from Heathrow to San Francisco for under £400. The cheapest flight booked recently is on TAP AIR PORTUGAL for just £308, but on average you can expect to pay £339.

Are there direct flights from Heathrow to San Francisco for under £400 on Cheapflights?

Cheapflights has 3 direct flights from Heathrow to San Francisco under £400. A good price for a direct flight from Heathrow to San Francisco is less than £399.

Are there last-minute flights available from Heathrow to San Francisco for under £600?

There are currently 3+ open flights from Heathrow to San Francisco within the next 7 days for less than £600.

How popular is this flight route?

This flight path from London Heathrow to San Francisco was viewed by 445 users in the past month. Keep an eye out for changes in search interest prior to high and low season.

What is the cheapest airline for this route?

British Airways offers the cheapest flights from Heathrow to San Francisco. Per day you can find on average 52 flights for this route and airline.

Does it rain more in Heathrow or San Francisco?

When travelling, it's generally smart to pack in preparation for rain or any other conditions that may arise. The rainfall in Heathrow is roughly greater than that of San Francisco. You can assume this to be the case over the next 19 days.

Is Heathrow weather warmer or cooler than San Francisco?

Expect the weather to be around 25 °C on average in September. As the temperature peaks, try to get your plans done early, as flight price and availability will have an impact on your travels. The climate in San Francisco is generally hotter than in Heathrow.