London (UK) to San Francisco (USA) £ 276.74 Return Ticket June 21, 2019 ~ nextstamp London – UK (GTW) to San Francisco – USA (SFO) Return Ticket Price: £ 276.74 Average Fare: £ 670.00 Savings: £ 393.26 Airline: Swiss Airlines Date: 15.11.2019 to 25.11.2019 San Francisco Share this:TweetLike this:Like Loading... Related Published by nextstamp Hi, I'm Diego the Next Stamp author. Travel has been life-changing for me! But, I'm always asked how I can afford to travel so much. The secret is a really cheap flight ticket. Follow my blog and don't miss any deal. View all posts by nextstamp