Farecast

Farecast was a Seattle travel technology company founded in 2003 that used predictive data mining and machine learning to forecast future airline ticket prices, telling travelers whether to buy now or wait for a better fare. The site launched publicly in May 2007, was named among Time Magazine's top websites, and grew into a broader smart travel search engine covering airfare and hotel price predictions. Microsoft acquired Farecast for $115 million in April 2008, integrating its technology into Live Search and later Bing Travel before discontinuing the standalone price-prediction feature in 2014.