How to get from Istanbul to Kastamonu
A real 2-leg route: bus. Door to door 10h 11m, from €25.
We compared the ways to travel from Istanbul to Kastamonu. The most useful door-to-door route takes 10h 11m by bus, 1 transfer. The two cities are about 404 km apart in a straight line. The price and operators below come from a real route search.
This is the lowest fare we have recorded for this route in the last 14 days.
This fare comes from a search on August 11, 2026 and has not been refreshed since. Run a live search for today's price.
Istanbul to Kastamonu: cheapest or fastest?
All from the same recent search. Pick a tab: the legs, the timing and the difference from the others all change with it.
- 1Istanbul → Araçbus
Kamil Koç·7h 07m - 2Araç → KastamonubusKarabük Doğuş·46m
The best balance of price and time we found on this route.
Istanbul to Kastamonu prices by travel date
Gold is the cheapest day we found. Tap a day and the panel and the button lock to that date.
2 ways from Istanbul to Kastamonu: flight, bus
How the trip from Istanbul to Kastamonu works
Start with a Kamil Koç bus from Istanbul to Araç, about 7h 7m. Transfer in Araç and continue by Karabük Doğuş bus on to Kastamonu (46 min). In total it's roughly €25 over 10h 11m, 1 transfer.
Along the way to Kastamonu
DepartureIstanbulWho runs Istanbul to Kastamonu
On this route you travel with Kamil Koç, Karabük Doğuş; Routavio does not add a booking fee.
Istanbul to Kastamonu: common questions
How long does it take to get from Istanbul to Kastamonu?+−
The most useful route takes about 10h 11m by bus, 1 transfer.
How far is Kastamonu from Istanbul?+−
About 404 km in a straight line. The real route on the ground or in the air is longer.
How much does Istanbul to Kastamonu cost?+−
The best price in our latest search was €25. The exact fare depends on your travel date.
Which operators run Istanbul to Kastamonu?+−
On this route you travel with Kamil Koç, Karabük Doğuş.
Can you get from Istanbul to Kastamonu without flying?+−
Yes. A ground route by bus takes about 10h 11m.
What is the cheapest way to get from Istanbul to Kastamonu?+−
Usually a flexible date, or leaving from a nearby airport. A live search puts every option for your dates side by side.
Can I book directly?+−
Yes. Routavio sends you straight to the operator or an independent third-party provider. We never add a booking fee. The final fare and availability are confirmed by that provider.
Where to next
Other ways people search Istanbul to Kastamonu
- how to get from Istanbul to Kastamonu
- Istanbul to Kastamonu travel time
- Istanbul to Kastamonu distance
- cheapest way from Istanbul to Kastamonu
- Istanbul to Kastamonu by bus