Cheap Flights from Istanbul to Kastamonu

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Find the cheapest month or even day of the year to fly to Kastamonu

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Flight deals from Istanbul to Kastamonu

Looking for a cheap last-minute deal or the best round-trip flight from Istanbul to Kastamonu? Find the lowest prices on one-way and round-trip tickets right here.

Kastamonu.$67 per passenger.Departing Thu, Jun 12, returning Fri, Jun 13.Round-trip flight with Turkish Airlines.Outbound direct flight with Turkish Airlines departing from Istanbul on Thu, Jun 12, arriving in Kastamonu.Inbound direct flight with Turkish Airlines departing from Kastamonu on Fri, Jun 13, arriving in Istanbul.Price includes taxes and charges.From $67, select.

Kastamonu.$77 per passenger.Departing Mon, Jan 19, returning Sun, Jan 25.Round-trip flight with Turkish Airlines.Outbound direct flight with Turkish Airlines departing from Istanbul on Mon, Jan 19, arriving in Kastamonu.Inbound direct flight with Turkish Airlines departing from Kastamonu on Sun, Jan 25, arriving in Istanbul.Price includes taxes and charges.From $77, select.

Kastamonu.$77 per passenger.Departing Sun, Dec 28, returning Fri, Jan 2.Round-trip flight with Turkish Airlines.Outbound direct flight with Turkish Airlines departing from Istanbul on Sun, Dec 28, arriving in Kastamonu.Inbound direct flight with Turkish Airlines departing from Kastamonu on Fri, Jan 2, arriving in Istanbul.Price includes taxes and charges.From $77, select.

Kastamonu.$77 per passenger.Departing Fri, Oct 10, returning Sun, Oct 19.Round-trip flight with Turkish Airlines.Outbound direct flight with Turkish Airlines departing from Istanbul on Fri, Oct 10, arriving in Kastamonu.Inbound direct flight with Turkish Airlines departing from Kastamonu on Sun, Oct 19, arriving in Istanbul.Price includes taxes and charges.From $77, select.

Kastamonu.$83 per passenger.Departing Tue, Sep 23, returning Tue, Sep 30.Round-trip flight with Turkish Airlines.Outbound direct flight with Turkish Airlines departing from Istanbul on Tue, Sep 23, arriving in Kastamonu.Inbound direct flight with Turkish Airlines departing from Kastamonu on Tue, Sep 30, arriving in Istanbul.Price includes taxes and charges.From $83, select.

Kastamonu.$95 per passenger.Departing Thu, Mar 26, returning Mon, Mar 30.Round-trip flight with Turkish Airlines.Outbound direct flight with Turkish Airlines departing from Istanbul on Thu, Mar 26, arriving in Kastamonu.Inbound direct flight with Turkish Airlines departing from Kastamonu on Mon, Mar 30, arriving in Istanbul.Price includes taxes and charges.From $95, select.

Kastamonu.$95 per passenger.Departing Fri, Mar 27, returning Wed, Apr 1.Round-trip flight with Turkish Airlines.Outbound direct flight with Turkish Airlines departing from Istanbul on Fri, Mar 27, arriving in Kastamonu.Inbound direct flight with Turkish Airlines departing from Kastamonu on Wed, Apr 1, arriving in Istanbul.Price includes taxes and charges.From $95, select.

Kastamonu.$99 per passenger.Departing Tue, Jun 24, returning Tue, Jul 1.Round-trip flight with Turkish Airlines.Outbound direct flight with Turkish Airlines departing from Istanbul on Tue, Jun 24, arriving in Kastamonu.Inbound direct flight with Turkish Airlines departing from Kastamonu on Tue, Jul 1, arriving in Istanbul.Price includes taxes and charges.From $99, select.

Find the cheapest month to fly from Istanbul to Kastamonu

We’re always keeping an eye on fares, so you can find the best one in seconds. It looks like Istanbul to Kastamonu flights are currently cheapest in June.

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Direct flights from Istanbul to Kastamonu

Istanbul to Kastamonu: Alternative routes

Compare routes from Istanbul to Kastamonu below. You may find an airport to fly into that's cheaper, faster, or easier than Kastamonu.

Istanbul to Kastamonu: Flight information

The things to know before you go.

Cheapest flight found	$67
Cheapest month to fly	June
Average flight time	1 hr, 18 mins
Most popular airline	Turkish Airlines
Average flights per week	7

Finding cheap flights from Istanbul to Kastamonu: Frequently asked questions

How much are round-trip flights from Istanbul to Kastamonu?

The best price we found for a round-trip flight from Istanbul to Kastamonu is $67. This is an estimate based on information collected from different airlines and travel providers over the last 4 days and is subject to change and availability.

How long does it take to fly from Istanbul to Kastamonu?

1 hour and 18 minutes is the average flight time from Istanbul to Kastamonu.

Which airlines fly direct from Istanbul to Kastamonu?

Turkish Airlines flies direct from Istanbul to Kastamonu.

How many flights are there a week from Istanbul to Kastamonu?

There are 14 flights per week flying from Istanbul to Kastamonu, as of June 2025.

When is the cheapest time to fly from Istanbul to Kastamonu?

The cheapest month to fly from Istanbul to Kastamonu is usually June.

Which upcoming date is cheapest to fly from Istanbul to Kastamonu Airport on?

After crunching the numbers on our flight calendar, we found that it is currently cheapest to fly from Istanbul to Kastamonu Airport on Thursday, June 12, 2025.

Can I get a direct flight from Istanbul to Kastamonu Airport?

Yes – the average flight time is 1 hour and 18 minutes.

How can I find the best flight deal to Kastamonu?

We show every price from over 1,200 airlines and travel agents, comparing them all so you don’t have to. If you know you want to fly to Kastamonu but you’re not ready to book, set up a Price Alert. We’ll track prices for you, and let you know when they rise or fall.

When is the best time to book flights to Kastamonu?

We crunched all the numbers in our flight calendar, and it looks like the cheapest time to book a flight to Kastamonu is around 40 days in advance, so don’t leave your flight to the last minute.

Which is the cheapest airline to fly with from Istanbul to Kastamonu?

The cheapest airline that flies to Kastamonu is Turkish Airlines.

Traveling from Istanbul to Kastamonu Airport (KFS): what you need to know

Start your trip planning by checking out the ideal departure point for your flight from Istanbul to Kastamonu Airport (KFS). Explore your options for departing from Istanbul Ataturk Airport (IST) or Sabiha Gokcen International Airport (SAW), two of the city's main airports.
1 hour 17 minutes is the time it takes on average for a direct flight from Istanbul to Kastamonu Airport.
Kastamonu Airport is located in Kastamonu. The city's timezone is UTC+3 — the same as Istanbul.
The most popular route is from Istanbul Ataturk Airport (IST) to Kastamonu Airport (KFS), with 10 direct weekly services. If you'd like to get going as soon as possible, the earliest flight from IST to KFS is the 08:30 Turkish Airlines service. If you prefer traveling later, the last departure is at 18:50 with Turkish Airlines.
For stress-free travel, arrive at the airport two hours ahead of international flights and one hour before domestic departures. This will give you enough time to board your flight from Istanbul to KFS.
Flying over a peak time such as August? Major public holidays and other high seasons can mean longer queues at check-in and security. Play it safe and arrive up to four hours ahead of international flights and two hours before domestic departures.

Airports in Istanbul

Istanbul Ataturk Airport (IST)

Get there in one go from Istanbul Ataturk Airport (IST). Nonstop flights from Istanbul to Kastamonu Airport (KFS) can be booked from here.
When taking off from IST, you can catch a direct flight from Istanbul to Kastamonu Airport with Turkish Airlines.
From central Istanbul, IST is approximately 48 kilometers away. Use navigation apps or visit the official airport website to work out the best way to arrive at the terminal.
Have an early flight from Istanbul to Kastamonu Airport? Avoid the last-minute rush to the terminal (and sneak in some extra snooze time) by picking one of these stays close to Istanbul Ataturk Airport:

Sabiha Gokcen International Airport (SAW)

Looking to fly out of Sabiha Gokcen International Airport (SAW)? You can reserve a direct flight from Istanbul to Kastamonu Airport (KFS) out of this popular hub.
Using public transport, you can travel from central Istanbul to SAW in about 1 hour and 30 minutes. The airport is roughly 48 kilometers away, and making the trip by car takes approximately 57 minutes.
You're going on vacation, so why not book an extra night away? Think about staying at one of these hotels near Sabiha Gokcen International Airport the day before your flight from Istanbul to KFS:

About Kastamonu Airport (KFS)

Consider staying moments from the tarmac after your flight from Istanbul to Kastamonu Airport. Amorium Hotel is one option near KFS. Or check in and relax at Serife Baci Ogretmenevi Doga Kultur Koyu before heading to your final destination.

Getting from Kastamonu Airport (KFS) to central Kastamonu

Kastamonu Airport to central Kastamonu is around 14 minutes in a car. It's approximately 13 kilometers away. Find out what options are available, such as car rentals, cabs or ride-sharing services.

How to find the cheapest flights from Istanbul to Kastamonu Airport (KFS)

Book a one-way ticket from Istanbul to Kastamonu Airport from $34 or travel return from just $67. The prices shown are based on availability and could change when you book.
Book 7 months before you want to fly. After crunching the numbers on our calendar, this is how far you should book ahead to find cheap tickets from Istanbul to KFS.
April is the cheapest month for tickets from Istanbul to Kastamonu Airport. If you need to travel at a different time of year, use the 'Whole month' search feature to see the lowest prices for every month.
Create a Price Alert for cheap tickets from Istanbul to KFS. There's no need to check back in every day to see whether prices have dropped. We'll update you the moment there's a change in price.
Use the filters to tailor your flights from Istanbul to Kastamonu Airport. Simply enter your preferred arrival and departure times, number of stops and airlines. You can also sort your results by 'Cheapest' to find the best deals.

The best time to fly from Istanbul to Kastamonu Airport (KFS)

August is the busiest month for flights from Istanbul to Kastamonu Airport. To skip the crowds, travel to Kastamonu in February when it's quieter.
Think about the type of weather that'll work with your plans for Kastamonu. The warmest month is August. Book your flights from Istanbul to KFS sometime then and you can expect temperatures of between 11ºC and 31ºC.
January has average temperatures of between -8ºC and 7ºC. Search for cheap flights from Istanbul to Kastamonu Airport sometime then if you want to travel when it's cooler.

More about Kastamonu

Start your Kastamonu trip off on the right foot by choosing the ideal place to stay. As soon as you've booked your flight from Istanbul to Kastamonu Airport, explore our range of accommodation options including:
There are so many things to explore in this city it can be difficult to know where to begin. Nasrullah Mosque, Kastamonu Museum and Liva Pasa Mansion Ethnography Museum are top sights which should be on every Kastamonu itinerary.

Complete your Kastamonu trip with a car rental

Choose one of our car rentals in Kastamonu and explore the city at your own pace. Easily compare rates from trusted rental companies in one go after booking your hotel and cheap flights from Istanbul to Kastamonu Airport.