You are looking for a gravity model diagram.
There is a video tutorial here:
And here is an article explaining how to build the view.
These both require a lot of data prep so make sure the data is structured right!
Best of luck!
You are unable to build this chart in tableau. You can place lines on top of maps but not entire sheets of lines. What I mean is you can connect points on a map with lines. But not place an entire line chart on the map. However you can put your spark lines off on the side or you can create a spark line per region and place it on the map via floating (please no), it will be painful and not great. Also a 3D map - It adds no value whatsoever.
Line on Map Mock.twbx 5.8 MB