Flights from Kastamonu to Istanbul
Nonstop flights from Kastamonu (KFS) to Istanbul (IST) take about 1h 2m (423 km). Turkish Airlines flies it. Lowest fare seen: $40 one-way, nonstop (22 Oct 2026).
Photo of Istanbul: Julien Goettelmann on Pexels.
When you land in Istanbul
The airport transfer and the few things worth sorting before you fly.
Airport transfer
IST → Istanbul, booked before you fly
A private driver meets you in arrivals at a price agreed when you book. Book with Welcome Pickups.
See transfer prices
Find hotels in Istanbul
Hotels, hostels & more · Trip.com
Airlines flying Kastamonu to Istanbul
Carriers on KFS–IST according to our route data and nonstop fares seen as of 22 Oct 2026. Not a complete list.
Kastamonu to Istanbul fares by month
Cheapest month seen for a nonstop flight: Dec 2026, from $40 one-way. Lowest one-way fares seen for departures in each month, read 22 Oct 2026.
| Departing | Nonstop from | Cheaper with stops |
|---|---|---|
| Oct 2026 | $5225 Oct 2026 · Turkish Airlines | — |
| Nov 2026 | $821 Nov 2026 · Turkish Airlines | — |
| Dec 2026 | $4030 Dec 2026 · Turkish Airlines | — |
| Aug 2027 | $681 Aug 2027 · Turkish Airlines | — |
When to go for the lowest fare
Later departures were cheaper: from $40 in December 2026, against $52 for October 2026.
From Travelpayouts flight-search data, city to city (Kastamonu to Istanbul, any airport), USD, read 22 Oct 2026. These are fares that were on sale, not a guarantee of today's price; an airline is named only where we know it flies this route.
Best time to fly to Istanbul
Based on weather and travel conditions in Turkey
Turkey is a great destination year-round. Check local weather patterns before booking and consider shoulder seasons for lower prices and fewer crowds.
More for this trip
Frequently asked questions — Kastamonu to Istanbul flights
How long is the flight from Kastamonu to Istanbul?
How far is Kastamonu from Istanbul by air?
Which airlines fly from Kastamonu to Istanbul?
How much does a flight from Kastamonu to Istanbul cost?
What is the cheapest month to fly from Kastamonu to Istanbul?
Do I need a visa to travel from Kastamonu to Turkey?
What is the best time to visit Istanbul?
Sources: fares from Travelpayouts flight-search data, seen 22 Oct 2026; airlines from each carrier's published network and nonstop fares on sale; distance from OurAirports coordinates; flight time estimated from distance. Fares change daily.
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