aerost.art is a web based hot air balloon flight simulator that uses real time wind data from global meteorological sources. Users can select any location on a world map and launch a virtual balloon that drifts according to actual wind speed, direction, and gusts at that exact point. The simulation aims to provide an authentic and unpredictable flying experience, as each flight is determined by current weather conditions rather than pre programmed or random wind patterns. The service is free to use, requires no registration for immediate flights, and contains no advertisements or tracking. To begin, a user clicks a point on the map and presses the start button. The balloon then moves across the map, with its position updating every few seconds based on live wind data. The simulated altitude is approximately 500 meters above ground level, where wind patterns differ from surface conditions. Guests can fly a single session that ends when the browser is closed, while optional free registration allows the flight to persist across sessions and continue drifting for days. No credit card is required for registration. The tool is designed for relaxation and exploration, with no competitive elements, scores, or timers. Typical use cases include virtually drifting over landscapes such as mountains, coastlines, deserts, or forests to observe how wind patterns vary by region and time of day. The wind data refreshes regularly from meteorological APIs, making each flight unique. The simulation is supported entirely by voluntary donations from users, which cover server costs and access to live weather data.