Currently there are direct flights from Ibiza to Germany:

Ibiza to Hamburg
Ibiza to Berlin Tegel
Ibiza to Cologne
Ibiza to Stuttgart
Ibiza to Dusseldorf
Ibiza to Frankfurt
Ibiza to Munich
Ibiza to Bremen
Ibiza to Erfurt
Ibiza to Hannover
Ibiza to Paderborn
Ibiza to Nuremberg
Ibiza to Friedrichshafen
Ibiza to Dusseldorf Weeze
Ibiza to Leipzig
Ibiza to Munster