To find the return flight distance between Zurich to Heidelberg via Titisee-Neustadt, Freiburg, Appenweier, Durlach, start with entering the locations in the control and click on Return Flight Distance. You can also add multiple destinations in between while returning from a location. If you are not aware of the routes, you can check the
Zurich to Titisee-Neustadt Route via Titisee-Neustadt, Freiburg, Appenweier, Durlach.