The chance to go as a junior has passed, but the application for rising seniors isn’t even open yet (look for it in late summer).
Several schools have these by the way:
http://blog.■■■■■■■■■■■■■■■■■■■■■/blog/2015-college-fly-in-programs/#sthash.oxxin7O3.cZkfkCX0.dpbs