It seems that flight delays could turn into a big business. FlightCaster , the startup that helps predict flight delays long before the airlines themselves usually do, has just landed a $1.3 million funding round led by Tandem Entrepreneurs and Sherpalo Ventures. FlightCaster previously recieved money as part of the Y Combinator program. Today the company is also launching a new API, which developers can learn about here . FlightCaster's goal is simple: it wants to let you know when your flight is delayed as early as possible. Using a variety of data sources and complex algorithms, the service will alert you whenever it thinks one of your flights will be delayed, along with an explantation of the factors that contributed to its prediction.