Predicting your balloon’s flight path is a requirement in Spain and the results must be provided to ENAIRE before launch. Fortunately, there are many easy-to-use online calculators that can estimate your path.
The most popular online flight prediction tool is the Cambridge University Spaceflight Landing Predictor (CUSF). Given a few parameters this site spit out a predicted flight trajectory overlaid on a 2D interactive map, which can be exported in KML (Keyhole Markup Language) format and loaded into Google Earth, giving you the ability to dynamically navigate your entire flight path at every altitude over a detailed 3D representation of the planet.
Four hours before, here you are our flight prediction.