How to navigate from Dialog to Fragment in Navigation Component?

You could use

view.getDialog().dismiss(); 

after navigate to B. But in that way, dialog won't be visible when you came back to A fragment.

If you really want it to be visible, maybe you should try to use Fragment and pretend it to be Dialog. Like in these example with activity link.

Thanks @musooff for filing this bug

This problem was fixed on Navigation 2.1.0-alpha06, along with others dialog inconsistencies like back button when Dialog is popped.

However, update to 2.1.0-beta02 or higher if you can.