You can reach Kastamonu from all major cities of Turkey. Kastamonu bus terminal is near the city center, where you can also take buses to other locations, or nearby town and cities.. Kastamonu is 530 km from Istanbul and 240 km from Ankara.. Some major bus companies are Ozlem, Huzur & Unal. Bus Companies Phone Numbers (all these companies have their offices in the the bus station - otogar) Ozlem 215 48 48 , Huzur 215 49 49 , Unal 215 47 17