Istanbul to Kastamonu (IST-KFS): nonstop upgrade & award space

Turkish Airlines flies the IST to KFS nonstop about 4 times a week. Turkish Airlines sets the rhythm here, a few flights a day with a small premium cabin on each, so a date with open space is worth acting on the day you see it. 2LNR tracks award seats on Turkish Airlines across every IST to KFS date, so you can see whether a seat exists before you move points.

Schedule last confirmed September 6, 2026. Departure times come from 2LNR's schedule data; confirm with the airline before you book.

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Nonstop flights a week

259 mi

Nonstop distance

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Istanbul to Kastamonu flight schedule

Scheduled nonstop departures for IST to KFS, last checked against our schedule feed on September 6, 2026. Airlines retime and cancel flights, so confirm with the airline before you book.

Scheduled nonstop departures from Istanbul (IST) to Kastamonu (KFS)
Date	Flight	Airline	Departs IST	Arrives KFS	Duration	Aircraft
Wed, Sep 9	TK 2736	Turkish Airlines	08:20	09:40	1h 20m	319
Fri, Sep 11	TK 2738	Turkish Airlines	19:25	20:40	1h 15m	319
Sun, Sep 13	TK 2738	Turkish Airlines	19:25	20:40	1h 15m	319
Mon, Sep 14	TK 2736	Turkish Airlines	08:25	09:45	1h 20m	319
Wed, Sep 16	TK 2736	Turkish Airlines	08:25	09:45	1h 20m	319
Fri, Sep 18	TK 2738	Turkish Airlines	19:25	20:40	1h 15m	319
Sun, Sep 20	TK 2738	Turkish Airlines	19:25	20:40	1h 15m	319

Showing all 7 scheduled IST to KFS departures across the next 7 days with service. Later dates are on the interactive map.

Departure and arrival times are local at their own airport, so an arrival can fall on a different local date than the departure; the duration column is the true elapsed flying time. A dash means the airline has not filed that value in the schedule data we hold. Aircraft are IATA equipment codes as filed, and can change up to departure.

See every IST to KFS date on the interactive map

Award seats on IST to KFS departures

2LNR tracks award seats on Turkish Airlines, date by date. Open the calendar for Istanbul to Kastamonu to see whether a seat exists before you move points, the next 14 days free on every product and the full horizon on Pro.

See real availability

Confirmed upgrade and award seats on each IST to KFS departure, checked against live inventory so you know what is open before you book.

Set an alert

Premium inventory turns over fast. Watch this route and 2LNR notifies you when space appears on a date you are tracking.

Plan on the map

See IST to KFS on the interactive route map, with schedules, connections, and route statistics.

Airlines flying Istanbul to Kastamonu nonstop

Carriers operating IST to KFS nonstop in the current schedule. 2LNR tracks confirmed upgrade and award space on each of them.

Turkish Airlines (TK) route map

See IST to KFS on the interactive map →

Frequently asked questions about IST to KFS

How far is Kastamonu from Istanbul?

IST to KFS covers about 259 miles nonstop. Flight times vary by aircraft and season; the schedule table on this page lists each scheduled departure with its own times.

Which airlines fly nonstop from IST to KFS?

Turkish Airlines is currently the only airline flying IST to KFS nonstop. 2LNR tracks award seats on Turkish Airlines.

How many flights a week are there from IST to KFS?

About 4 nonstop flights a week run between Istanbul and Kastamonu in the current schedule, operated by Turkish Airlines. Frequency shifts by season, and the schedule table on this page shows what is scheduled next.

What time do flights from IST to KFS depart?

Scheduled IST to KFS nonstops in the next 7 days with service leave between 08:20 and 19:25, local time at Istanbul. The schedule table on this page lists every departure by date, with its arrival time and aircraft.

How do I check upgrade or award availability on IST to KFS?

Open the IST to KFS route on the interactive map or the matrix to see award seats by date on Turkish Airlines, the next 14 days free and the full horizon on Pro. On Pro you can also set an alert on the route and 2LNR notifies you when space opens.

Never miss IST to KFS upgrade or award space

See what is open by date on this route, the next 14 days free on every product and the full horizon on Pro.

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