How to get from Kastamonu to Istanbul
Compare the train, bus and flight options. Then check them for your own date.
Start with the whole journey.
We compared the ways to travel from Kastamonu to Istanbul. The most useful option is a flight; the flight itself takes 1h 25m, not counting the trip to and from the airports. The two cities are about 404 km apart in a straight line. The price and operators below come from a real route search.
The lowest we recorded in the last 14 days was €25, on Thu, Aug 27.
This fare comes from a search on August 31, 2026 and has not been refreshed since. Run a live search for today's price.
404 km
Which way suits you?
| Transport | Observed fare | Duration and scope | Detail |
|---|---|---|---|
| Flight | €32Checked Sep 10 | 1h 25mdirect | See Flight details |
| Bus | €25Older observation | 8h 19mdirect | See Bus details |
- Flight€32Checked Sep 101h 25m · directSee Flight details
- Bus€25Older observation8h 19m · directSee Bus details
These figures were observed on different days. This table is not a live price ranking for your date.
Kastamonu to Istanbul: 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.
- 1Kastamonu Airport → Istanbul Airportflight
Turkish Airlines·1h 25m
The best balance of price and time we found on this route.
The observed fares belong to earlier dates.
Search my dateWhich date should you go?
The amounts on each day are fares seen earlier, not live offers. A day with no figure is one we have not priced, not one without a service.
Departures from Kastamonu to Istanbul
FlixBus runs 12 scheduled departures a day, the first at 06:00 and the last at 23:59.
| Operator | Departures a day | First | Last |
|---|---|---|---|
| FlixBusbus | 12 | 06:00 | 23:59 |
| Kamil Koçbus | 10 | 10:30 | 23:00 |
Departure times come from operator timetables and are local time at the origin. Where a row shows no times, the frequency is the operator's own and the timetable is not published to us. Times can change on holidays and at short notice; confirm with the operator before you travel.
Departure and arrival
Operators seen on these journeys
Turkish AirlinesKastamonu Airport-Istanbul AirportSee live options and dates →
Kamil KoçKastamonu-IstanbulBook →On this route you travel with Turkish Airlines, Kamil Koç; Routavio does not add a booking fee.
How the trip from Kastamonu to Istanbul works
Start with a Turkish Airlines flight from Kastamonu to Istanbul, about 1h 25m. In total it's roughly €49 over 1h 25m, direct, no transfers.
Kastamonu to Istanbul: common questions
How long does it take to get from Kastamonu to Istanbul?
The most useful option is a flight; the flight itself takes about 1h 25m. Getting to and from the airports is on top of that.
How far is Istanbul from Kastamonu?
About 404 km in a straight line. The real route on the ground or in the air is longer.
How much does Kastamonu to Istanbul cost?
Our latest search put the route we recommend at €49. Other options on this page can cost less, and the exact fare depends on your travel date.
Are there direct flights from Kastamonu to Istanbul?
Yes. The best option we found flies without a transfer and takes about 1h 25m.
How long is the flight from Kastamonu to Istanbul?
About 1h 25m, and that is the flight itself. Getting to and from the airports is on top of it.
What are the airport codes for Kastamonu and Istanbul?
Kastamonu is KFS and Istanbul is IST, so this route is usually written KFS to IST.
Which operators run Kastamonu to Istanbul?
On this route you travel with Turkish Airlines, Kamil Koç.
What is the cheapest way to get from Kastamonu to Istanbul?
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.
Other ways people search Kastamonu to Istanbul
- how to get from Kastamonu to Istanbul
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- Kastamonu to Istanbul distance
- cheapest way from Kastamonu to Istanbul
- Kastamonu to Istanbul flight time
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- KFS to IST