Direct (nonstop) flights from Kastamonu to Istanbul
1 airline flys nonstop from Kastamonu Airport (KFS) to Istanbul Airport (IST). It's 263 miles (423 km), about 1h 20m in the air. Operated by Turkish Airlines.
Turkish Airlines
Route data last updated: May 27, 2026
Airlines with non-stop flights
TK
Turkish Airlines
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IST → KFS: Flights from Istanbul to KastamonuDirect flights from Istanbul (IST)
Frequently Asked Questions
How long is the direct flight from Kastamonu to Istanbul?
A nonstop flight from Kastamonu (KFS) to Istanbul (IST) takes approximately 1 hours and 20 minutes. The distance is 263 miles (423 km).
Which airlines fly nonstop from Kastamonu to Istanbul?
Just Turkish Airlines.
Is there a nonstop flight from Kastamonu to Istanbul?
Yes. 1 airline: Turkish Airlines.
How far is Kastamonu from Istanbul?
The flight distance from Kastamonu to Istanbul is 263 miles (423 km), measured as the great-circle (shortest air) distance. That's roughly the same distance as London to Paris.
What type of aircraft flies from Kastamonu to Istanbul?
At 1h 20m, this route typically uses narrow-body aircraft — Boeing 737 or Airbus A320. Varies by airline.
What is the carbon footprint of a flight from Kastamonu to Istanbul?
Roughly 49 kg CO2 per passenger one-way. That's about the same as driving 245 km.
Is the return flight from Istanbul to Kastamonu also nonstop?
Yes — nonstop flights run both ways. Flight time may differ slightly due to wind patterns.
When is the cheapest time to fly from Kastamonu to Istanbul?
Midweek flights (Tue/Wed) outside holiday peaks are usually cheapest. For long-haul, booking 2-3 months out tends to help. Use "Check Prices" above to compare.
How early should I arrive at Kastamonu Airport for this flight?
1.5-2 hours for domestic. Add more time during holidays or busy travel weekends.