Drones and highly automated air taxis have the potential to enrich urban air transport with new possibilities. But what requirements must be met so that airborne urban mobility can be used in a few years? What demands on safety, efficiency, sustainability and affordability must be met to make these concepts feasible? In the HorizonUAM (Urban Air Mobility) research project, the German Aerospace Center (Deutsches Zentrum für Luft- und Raumfahrt; DLR) has sought answers to these questions with concepts for aircraft, flight corridors and stopping points (‘vertidromes’) that integrate into the existing infrastructure. The results are being presented to the public on 4 and 5 July 2023 at DLR’s National Experimental Test Center for Unmanned Aircraft Systems at the Cochstedt site. Here, the project’s central flight tests took place in a model city. Specific examples for the development of urban air transport were designed for the city of Hamburg. Feedback from citizens on the possible use of urban air transport was incorporated into the research.