To find the return flight distance between Zurich to Basel via Lucerne, Bern, Biel/Bienne, Belfort, 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 Lucerne Route via Lucerne, Bern, Biel/Bienne, Belfort.