Vuelos Desde Heathrow (LHR) a San Francisco Intl. (SFO) Empezando Desde $521

For information on any current SFO quarantine requirements and travel advice, go to the Covid-19 Travel Advisor. Check before you book your flight, so you don’t get caught out.

Multiple airlines offer nonstop flights from Heathrow Airport (LHR) to San Francisco Airport. These include British Airways and Virgin Atlantic — start with them if you want to touch down at your destination as quickly as possible.

For more info about changing your flight to San Francisco Airport, please visit our Customer Service Portal.

The flight from LHR to San Francisco Intl. Airport (SFO) lasts approximately 10 hours and 58 minutes. You’ll have more than enough time to catch up on some sleep on this long-haul flight, but remember to take an inflatable travel pillow if you really want to get comfortable.

You’ll have covered 5,400 mi by the time you’ve pulled away from the gate at Heathrow Airport (LHR) and touched down at San Francisco Airport. Don’t forget to bring plenty to pass the time — it’s going to be a long journey.

If you want to get to San Francisco from London, there are several airlines that advertise direct flights. One of the most well-known is British Airways (BA), which has 60 flights on this route every month. A popular alternative is Virgin Atlantic (VS), which offers 30 flights every month. The more airlines you take into account, the more likely you are to pick up a wonderful deal.

From the moment you enter the departure terminal to when you leave the arrivals terminal, if you’re flying with United Airlines, Alaska Airlines or Delta you can be sure that COVID-19 measures and social distancing rules have been adhered to. Many airlines have introduced capped capacity flights and keeping the middle seat empty.

This just in! Airfares offered on Thursdays tend to be the cheapest, according to flight demand on Travelocity in 2021. Tuesday and Wednesday prices are also good, but you may want to prepare your budget if booking during the weekend, as data shows that is when prices are generally at their highest.

Frequent travelers may already know this, but earlier in the week can be the cheapest time to fly. In 2021, flights departing on a Monday were generally the cheapest of the week, whereas you may pay a premium for weekend flights when demand is usually high. On average, tickets were most expensive for Saturday departures, so if you need to fly out on a weekend, you might look for deals ahead of time.

Trying to figure out how early you should book your flight? It’s possible to start comparing international airfares on Travelocity up to 12 months in advance. However, it does depend on the carrier as not all airlines release their prices that far out. According to our 2021 flight demand trends, last minute planners can still bag a bargain with some of the cheapest fares appearing 0-2 weeks prior to their travel dates.*According to flight demand on Travelocity.com from January to December 2021. Savings are subject to change based on departure location, date and destination.