The average bus between Bolu and Istanbul takes 5h 37m and the fastest bus takes 4h 25m. The bus service runs several times per day 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 4 times a day between Bolu and Istanbul. The earliest departure is at 3:15 AM at night, and the last departure from Bolu is at 8:15 PM which arrives into Istanbul at 12:40 AM. All services require a transfer, and take on average 5h 37m. The schedules shown below are for the next available departures.

4h 35m • 1 change

5h 5m • 1 change

8h 49m • 1 change
Arrives next day

4h 25m • 1 change

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5h 5m • 1 change

8h 49m • 1 change
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4h 25m • 1 change

4h 35m • 1 change

5h 5m • 1 change

8h 49m • 1 change
Arrives next day

4h 25m • 1 change

4h 35m • 1 change

5h 5m • 1 change

8h 49m • 1 change
Arrives next day

4h 25m • 1 change

4h 35m • 1 change

5h 5m • 1 change

8h 49m • 1 change
Arrives next day

4h 25m • 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. The journey, including transfers, takes approximately 5h 37m.
Bolu to Istanbul bus services, operated by Mersin Turizm, depart from Bolu station.
Bolu to Istanbul bus services, operated by Mersin Turizm, arrive at İstanbul Esenler station.
Book your Bolu to Istanbul bus tickets online with Mersin Turizm, Varan Turizm and Ali Osman ULUSOY.
The distance between Bolu and Istanbul is 225.5 km. The road distance is 287 km.
You can take a bus from Bolu to İstanbul Esenler via İstanbul Dudullu in around 4h 42m.