Cheap flights from Istanbul to Kastamonu

Istanbul
IST
Kastamonu
KFS

Flight deals from Istanbul to Kastamonu

Below you can see the best deals on flights Istanbul — Kastamonu for upcoming dates. Direct and connecting flights from various airlines — compare prices and choose the right ticket.

The lowest price for the next 2 months is on 25 October, from $229.

Top 10 cheap flights from Istanbul to Kastamonu

About the Istanbul — Kastamonu flight

Looking for cheap flights from Istanbul to Kastamonu? Compare fares from different airlines, check the flight schedule and travel time — and book your Istanbul — Kastamonu ticket online at the best price.

The route has direct flights — around 10 flights per week, flights are operated by Turkish Airlines, a nonstop flight takes about 1 h, the distance between the cities is around 405 km.

Planning your trip? You may find our Kastamonu travel guide, how to get from the airport into town and Kastamonu weather forecast useful. To catch a low fare, use the low-price calendar and the monthly price chart on this page.

Facts about this route

from $229Min. price
OctoberCheapest
JunePeak season
YesDirect flights
405 kmDistance
1 hTravel time
1Airlines
10 / wkFlights

Flight schedule from Istanbul to Kastamonu

The table shows direct flights from Istanbul to Kastamonu on the selected date. The flight takes approximately 1 h. Regular flights are operated by Turkish Airlines. Departures from Istanbul Airport and Sabiha Gokcen International Airport airports, arrivals at Kastamonu.

For each flight, the following details are shown: departure time (local), arrival city and airport, flight number and airline, terminal or gate, and status. Click on a flight to open its details and go to ticket search. To view flights on a different day, change the date above the table.

Wed, 2 September
Any time
Last update: 01 Sep 2026

Flight ticket prices by day: Istanbul — Kastamonu

Below is a calendar of the lowest flight ticket prices for Istanbul — Kastamonu by day. Pick a convenient date and instantly see the fare. The cheapest flights on this route start from $229 in October, and the most expensive are around $265 in June. If your travel dates are flexible, the calendar will help you find the best price for your preferred period. To view round-trip fares, switch to the "Round trip" tab above the calendar, select your departure date — and the right-hand calendar will highlight the lowest prices for return flights on each day.

 
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Prices by month

Average one-way fares from Istanbul to Kastamonu by month. Tickets are usually cheapest in November (around $37) and priciest in August (about $60) — use the table and chart below to pick the best time to fly.

MonthAverage priceLevelMonthAverage priceLevelMonthAverage priceLevel
Jan$41lowMay$50highSep$52high
Feb$38lowJun$55highOct$46medium
Mar$42mediumJul$59highNov$37low
Apr$45mediumAug$60highDec$42medium

Some values are estimated based on seasonality.

When to fly

Weather in Kastamonu: it is warmest in August (up to 27 °C on average) and coolest in January (around 4 °C). The driest month is August.

Tickets are usually cheapest in October and most expensive in June. Compare prices and weather by month in the charts below to pick the best time to fly.

Temperature · Kastamonu

Dry and wet days · Kastamonu

Wind speed and direction · Kastamonu

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How to get the best deal on a Istanbul — Kastamonu ticket

  • Book ahead: fares for Istanbul — Kastamonu are usually lower 3–8 weeks before departure than at the last minute.
  • Play with your dates — Tuesday, Wednesday and Saturday departures are often cheaper than Friday and Sunday.
  • Istanbul is served by more than one airport — compare fares and travel time to each before you book.
  • Flights Istanbul — Kastamonu operate on Mondays, Wednesdays, Thursdays and Saturdays — keep that in mind when picking your travel dates.
  • The cheapest month to fly to Kastamonu is usually October — plan your trip around it if your dates are flexible.
  • Compare direct and connecting flights: nonstop is faster, while a connection is sometimes noticeably cheaper.
  • Watch the low-price calendar and the monthly price trend on this page — they make it easier to catch a good date.
  • Travelling light? Pick a cabin-baggage-only fare — tickets without checked luggage are noticeably cheaper.
  • Get to the airport in good time — about 2–3 hours before an international departure and roughly an hour before a domestic one.

Airlines

Flights on the Istanbul — Kastamonu route are operated by 1 airline; Turkish Airlines runs the most flights (around 100% of all flights). Compare carriers, flight shares and schedules below.

  • Turkish AirlinesTK
    3x/week
    WebsiteFleet: 49283.4M pax/year
    • Direct flight IST → KFS3x/week
      Duration
      1h 19m
      Days
      MTWTFSS
    100.0%Open →

Cities and airports on the Istanbul — Kastamonu route

Flights Istanbul — Kastamonu depart from Istanbul Airport and Sabiha Gokcen International Airport and arrive at Kastamonu. Below are pages for the cities, countries, and airports on the route: airlines, schedules, and travel guides.

Departure

Istanbul

IST
Turkey
About the cityHow to get thereWeatherAll about the country Turkey
Arrival

Kastamonu

KFS
Turkey
About the cityHow to get thereWeatherAll about the country Turkey
Departure airports
Arrival airports

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Frequently asked questions about the Istanbul — Kastamonu flight

How long is the flight from Istanbul to Kastamonu?

A nonstop Istanbul — Kastamonu flight takes about 1 h — the distance between the cities is around 405 km.

How far is it from Istanbul to Kastamonu?

The distance from Istanbul to Kastamonu is about 405 km, which a nonstop flight covers in around 1 h.

Are there direct flights from Istanbul to Kastamonu?

Yes, there are nonstop flights Istanbul — Kastamonu — around 10 flights per week.

Which airlines fly from Istanbul to Kastamonu?

Airlines operating Istanbul — Kastamonu include Turkish Airlines. See the full list with schedules in the "Airlines" section on this page.

Which airports do Istanbul — Kastamonu flights use?

Flights from Istanbul depart from Istanbul Airport, Sabiha Gokcen International Airport, and arrive at Kastamonu. If a city has more than one airport, check which one your ticket uses before you travel.

How much is a ticket from Istanbul to Kastamonu?

The price of a Istanbul — Kastamonu ticket depends on your travel date, season and demand: it is usually cheapest to fly in October, and most expensive in June. Tickets typically cost between $229 and $265. Check the current lowest fare and low-price calendar on this page.

When is the best time to book flights Istanbul — Kastamonu?

Flights Istanbul — Kastamonu are usually cheaper when booked in advance — a few weeks before departure and away from peak dates; the most budget-friendly month to fly is October. Compare prices by month in the price trend chart on this page.

How can I find the cheapest flights from Istanbul to Kastamonu?

To catch a low fare Istanbul — Kastamonu, book a few weeks in advance, keep your dates flexible, and compare airlines and connecting options. The low-price calendar and monthly price chart on this page show the cheapest days and months at a glance: the most budget-friendly month to fly is usually October.

How early should I arrive at the airport?

For international flights, plan to be at the airport about 2–3 hours before departure, and around an hour before a domestic flight. Allow extra time during busy travel seasons and at large hubs, where check-in and security lines can be longer.

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