The average bus between Bolu and Istanbul takes 5h 23m and the fastest bus takes 4h 30m. There is a bus service every few hours from Bolu to Istanbul. The journey time may be longer on weekends and holidays; use the search form on this page to search for a specific travel date.
Buses run hourly between Bolu and Istanbul. The earliest departure is at 12:30 AM at night, and the last departure from Bolu is at 11:45 PM which arrives into Istanbul at 5:30 AM. All services require a transfer, and take on average 5h 23m. The schedules shown below are for the next available departures.

5h 25m • 1 change

5h • 1 change

5h 20m • 1 change

4h 45m • 1 change

5h 45m • 1 change

5h 55m • 1 change

6h 5m • 1 change

5h 45m • 1 change

5h 45m • 1 change

5h 44m • 1 change

6h 5m • 1 change

5h 45m • 1 change
Want to know about travelling from Bolu to Istanbul? We have put together a list of the most frequently asked questions from our users such as: What is the cheapest mode of transport? What is the quickest option? How much do tickets usually cost? and many more.
No, there is no direct bus from Bolu to Istanbul. However, there are services departing from Bolu station and arriving at Istanbul station via İstanbul Dudullu bus station station. The journey, including transfers, takes approximately 5h 23m.
Bolu to Istanbul bus services, operated by Kamil Koc, depart from Bolu bus station.
Bolu to Istanbul bus services, operated by Kamil Koc, arrive at İstanbul Esenler bus station.
Book your Bolu to Istanbul bus tickets online with Kamil Koc.
The distance between Bolu and Istanbul is 225.5 km. The road distance is 278 km.
You can take a bus from Bolu bus station to İstanbul Esenler bus station via İstanbul Dudullu bus station in around 4h 18m.