Facts about the bus from Istanbul to Kastamonu
| Cheapest Bus | $12 |
| Fastest Bus | 6h 15m |
| Earliest Bus | 12:15 AM |
| Latest Bus | 11:59 PM |
| Daily Bus Routes | 53 |
| Distance | 650 kilometers |
| Bus Companies | Aksakal Seyahat, Ali Osman Ulusoy, Boyabat Seyahat, Boyabat Tur, Cagdas Guven Turizm, Efe Tur, Gerze Guven Keklik, Kale Seyahat, Sinop Birlik Turizm, Soner Turizm |
