I did this trip with no delays but I think it was more good luck than good management Lol
From Terminal 2 I went straight over the traffic lights, instead of going left, stay on that road and after about 1 mile you join another road at a Y junction (Bloody awkward in a RHD) but anyway bear right, follow that road for another mile and then pick up the sign for Ruse (Pyce) it joins the dual carriageway just before the OMV garage near their equivalent of Toys are us. Sorry I dont know the street names, but my sat nav had me taking the exit after Toys are Us to go about 6 miles to the airport when I was going to collect the wife, that little error on the way back saved 6 miles on the journey Lol