From Heuston Train Station train to Killarney Train Station. 3 h 10 min 62€. From Dublin City South, Burgh Quay bus to Killarney Coach Park. 4 h 20 min 19€. From Dublin bus to Cork Bus Station, Cork Parnell Place Bus Station then bus to Killarney, Killarney Bus Station. 5 h 35 min 33€. From Dublin drive to Killarney. 3 h 14 min 44€. From The 3Arena line 702 bus to Dublin airport, fly to Kerry airport, then line 14 bus to Killarney. 3 h 46 min 58€.