From Ayr train to Stranraer, walk to Stranraer, Port Rodie Ferry Terminal (Police Station), then bus to Cairnryan, Post Office. 2 h 22 min £18. From Ayr, Bus Station (Fullarton Street) bus to Girvan, Elder Avenue (Opp 86 Elder Avenue) then line 358 bus to Cairnryan, Post Office. 2 h 46 min £14. From Ayr taxi to Cairnryan. 58 min £124. From Ayr drive to Cairnryan. 58 min £9.