The calculated distance (air line) between Agios Ioannis Rentis and Lárisa is approximately 134 miles respectively 215 kilometers.
By car or train, the actual journey to Lárisa is certainly longer, as only the direct route (as the crow flies) between Agios Ioannis Rentis and Lárisa has been calculated here.
Air line (approximately)
215 kilometers
116 nautical miles