£407 Find Cheap United Airlines Flights from London Heathrow Airport to San Francisco

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

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

  With an average price of £797 return, United Airlines is not the cheapest airline to fly from London Heathrow Airport to San Francisco with. Instead, for the lowest price, our data suggests flying with Air France, where a return flight costs £610 on average.

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

  In the last 3 days, the lowest price for a flight with United Airlines from London Heathrow Airport to San Francisco was £548 for a return flight and £598 for a one-way flight.

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

  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 Heathrow Airport to San Francisco with United Airlines?

  On average, the cheapest day of the week to fly from London Heathrow Airport to San Francisco with United Airlines is Monday, when prices are around £723. The most expensive day is generally Saturday, when the average price is around £1,234.

• What’s the cheapest month to fly from London Heathrow Airport to San Francisco with United Airlines?

  The cheapest month for United Airlines flights to San Francisco from London Heathrow Airport is generally November, where plane tickets cost £775 on average. If possible, try to avoid the most expensive months of January and September, when tickets cost £3,005 and £3,177 respectively.