dxb auh
it costs 300aed to b exact from dxb,u can rent a car fron avis or hertz, if u ve a crew id avis will make a discount for u,it ll b 120 ish,for the bus u ve to go dubai station by taxi it ll cost u around 70 aed then 15 aed to get to auh bt bus or 50aed by taxi for one person,for etihad sometimes they do ask for the ticket to make sure that u ll travel with ey,the easiest way is to take a cab n the chipest way it the one montioned above ,it s take around 75 min by taxi ans 120 by bus good luck mate