Istanbul, TurkeyKastamonu

Flights from Istanbul to Kastamonu

Nonstop flights from Istanbul (IST) to Kastamonu (KFS) take about 1h 2m (423 km). Turkish Airlines flies it. Lowest fare seen: $39 one-way, nonstop (22 Oct 2026).

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When you land in Kastamonu

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Getting out of Kastamonu (KFS)

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Airlines flying Istanbul to Kastamonu

Carriers on IST–KFS according to our route data and nonstop fares seen as of 22 Oct 2026. Not a complete list.

✈ Turkish Airlinesnonstop fare seen

Istanbul to Kastamonu fares by month

Cheapest month seen for a nonstop flight: Dec 2026, from $39 one-way. Lowest one-way fares seen for departures in each month, read 22 Oct 2026.

DepartingNonstop fromCheaper with stops
Oct 2026$5225 Oct 2026 · Turkish Airlines—
Nov 2026$458 Nov 2026 · Turkish Airlines—
Dec 2026$3930 Dec 2026 · Turkish Airlines—
Jan 2027$391 Jan 2027 · Turkish Airlines—

When to go for the lowest fare

Later departures were cheaper: from $39 in December 2026, against $45 for November 2026.

From Travelpayouts flight-search data, city to city (Istanbul to Kastamonu, 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.

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Frequently asked questions — Istanbul to Kastamonu flights

How long is the flight from Istanbul to Kastamonu?
A nonstop flight from Istanbul (IST) to Kastamonu (KFS) takes about 1h 2m, covering 423 km. That is an estimate from the distance — actual time varies with the airline, aircraft and winds, and connecting itineraries take longer.
How far is Istanbul from Kastamonu by air?
The great-circle distance between İstanbul Airport and Kastamonu Airport is 423 km (263 miles), a short-haul route.
Which airlines fly from Istanbul to Kastamonu?
Airlines with flights or nonstop fares on the IST–KFS route include Turkish Airlines. This is not a complete list — schedules change by season, so check the current options before booking.
How much does a flight from Istanbul to Kastamonu cost?
The lowest one-way fare seen recently on IST–KFS was $39 USD with Turkish Airlines (nonstop), departing 1 Jan 2027, found in fare searches as of 22 Oct 2026. Fares change constantly and depend on the date, so check the current price before booking.
What is the cheapest month to fly from Istanbul to Kastamonu?
In fares seen on 22 Oct 2026, departures in December 2026 were cheapest, from $39 one-way, against $52 for October 2026, the dearest month. Fares change daily, so check your own dates.
Do I need a visa to travel from Turkey to Kastamonu?
It depends on your passport. Some nationalities can enter Kastamonu visa-free or get a visa on arrival; others must apply in advance. Use AirConnect's Visa Checker to see the rules for your passport.

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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