Facts about the bus from Kastamonu to Istanbul
| Cheapest Bus | $12 |
| Fastest Bus | 7h |
| Earliest Bus | 8:30 AM |
| Latest Bus | 11:20 PM |
| Daily Bus Routes | 42 |
| Distance | 350 kilometers |
| Bus Companies | Aksakal Seyahat, Ali Osman Ulusoy, Boyabat Tur, Cagdas Guven Turizm, Efe Tur, Kale Seyahat, Sinop Birlik Turizm, Soner Turizm |
