The calculated distance (air line) between Oraiókastro and Ioánnina is approximately 132 miles respectively 212 kilometers.
By car or train, the actual journey to Ioánnina is certainly longer, as only the direct route (as the crow flies) between Oraiókastro and Ioánnina has been calculated here.
Air line (approximately)
212 kilometers
114 nautical miles