The calculated distance (air line) between Néa Kallikráteia and Ioánnina is approximately 125 miles respectively 202 kilometers.
By car or train, the actual journey to Ioánnina is certainly longer, as only the direct route (as the crow flies) between Néa Kallikráteia and Ioánnina has been calculated here.
Air line (approximately)
202 kilometers
109 nautical miles