You can either take the motorway to Belfast straight on westlink onto motorway: take M12 on left for Armagh/ P'down then straight into Armagh at second roundabout take left Drumad road follow that road go straight and mile up the road you will see Armagh city hotel on your left and just past it take slip road on left for Keady and ground straight ahead. If you take left at that junction there's a car park on Keady Rd(300yds) on right at Bunscoil usually a fiver but plenty of space at Hotel or Eurospar opposite it behind St malachy's chapel only two minute walk from there.
or you can go via antrim - Moira roundabout onto motorway and follow above from there.