Is there a database of radio-frequencies for airfields/airports in Europe? Is there something like a register of frequencies for airfields/airports in Europe? I am building a VFR flight planner and would be interested to autofill a form with the frequencies dependent on the given input data. Is there something like a database?
Try https://www.ead.eurocontrol.int/eadcms/eadsite/index.php.html . It is not a database but you have access to all AIPs from members of Eurocontrol .