The calculated distance (air line) between Carrick-on-Suir and Tallaght is approximately 78 miles respectively 125 kilometers.
By car or train, the actual journey to Tallaght is certainly longer, as only the direct route (as the crow flies) between Carrick-on-Suir and Tallaght has been calculated here.
Air line (approximately)
125 kilometers
68 nautical miles