$546 Find Cheap United Airlines Flights from London to San Francisco

When to Book Flights with United Airlines from London to San Francisco

• Is United Airlines the cheapest airline to fly with from London to San Francisco?

  With an average price of $704 return, United Airlines is not the cheapest airline to fly from London to San Francisco with. Instead, for the lowest price, our data suggests flying with Finnair, where a return flight costs $581 on average.

• What is the cheapest United Airlines flight from London to San Francisco?

  In the last 3 days, the lowest price for a flight with United Airlines from London to San Francisco was $560 for a return flight and $611 for a one-way flight.

• Does United Airlines fly direct to San Francisco from London?

  Yes, United Airlines does offer direct flights for the route, with around 21 flights per week.

• What’s the cheapest day of the week to fly from London to San Francisco with United Airlines?

  On average, the cheapest day of the week to fly from London to San Francisco with United Airlines is Sunday, when prices are around $658. The most expensive day is generally Saturday, where the average price is around $1,315.