From Cairnryan, Post Office line 360 bus to Girvan, Elder Avenue (Opp 86 Elder Avenue) then bus to Ayr, Bus Station (Fullarton Street). 2 h 29 min £14. From Cairnryan, Post Office bus to Stranraer, Port Rodie, walk to Stranraer, then train to Ayr. 2 h 37 min £18. From Cairnryan taxi to Ayr. 59 min £124. From Cairnryan drive to Ayr. 59 min £9.