$282 Cheap Flights from Istanbul (IST) to Kastamonu (KFS)

View $282 flight on Mon, Apr 28, 2025Opens in a new window

Popular airlines from Istanbul Airport (IST) to Kastamonu (KFS)

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Find available prices by choosing your travel dates.

Cheap Flights from Istanbul to Kastamonu (IST-KFS)

Prices were available within the past 7 days and start at $282 for one-way flights and $537 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Turkish Airlines
Sun, Apr 27 - Mon, May 5
IST
Istanbul
KFS
Kastamonu
$537 Roundtrip, found 1 day ago
$537
Roundtrip
found 1 day ago
Select Turkish Airlines flight, departing Sun, Apr 27 from Istanbul to Kastamonu, returning Mon, May 5, priced at $537 found 1 day ago
Flights from Istanbul (IST) to Kastamonu (KFS)
Origin airport
Istanbul
Destination airport
Kastamonu
Roundtrip price
$537
Distance
262 mi

Istanbul to Kastamonu Flights

The cheapest times to fly from Istanbul to Kastamonu

On average, Thursday can be the cheapest time to fly, according to data from the Airlines Reporting Corporation (ARC), one of the world's biggest databases for global airline sales. The data reveals that you could save up to 16% by flying on a Thursday—the cheapest day to travel on average—instead of a Sunday—the most expensive. Some of the most affordable flights from Istanbul to Kastamonu are during the month of April. You can find some of the cheapest flights from Istanbul to Kastamonu with Expedia's search tool and vast selection of airlines.

 

The best time to book a flight from Istanbul to Kastamonu

Sunday is one of the best days to book for cheap flights from Istanbul to Kastamonu: Tickets reserved on a Sunday cost between 6% and 13% less than those reserved on a Friday, according to ARC data. The data also suggests booking early can also lead to cheaper airfares. You could save 24% by buying your tickets for domestic flights at least a month in advance and 10% by booking international flights 2 months in advance.

 

How to find cheap round-trip tickets from Istanbul to Kastamonu

Being flexible with your dates and using Expedia's Price Drop Protection and Price Tracking features are some of the best ways of finding a cheap ticket from Istanbul to Kastamonu in 2025. You can also book with separate airlines for your outbound and return journeys, from $282 one-way. Expedia also offers Price Drop Protection, so if the cost of your airfare goes down after booking, you'll receive a credit for the difference*. This is available for a small fee, and is free to One Key Gold and Platinum tier members.

 

Expedia's Price Tracking feature means you can stay on top of airfares without manually checking every day. It sends you automated price alerts for cheap Istanbul to Kastamonu flights and uses historical data to indicate when the best time to book is. Download Expedia's free app to activate this handy tool in a few easy taps.

 

You could also save big by booking one of Expedia's vacation packages. Bundling together your Istanbul to Kastamonu airfare with your accommodations and car rental is often cheaper than booking everything separately. There’s also One Key, Expedia's generous rewards program. Join for free and you could earn One Key cash on most bookings to save on future adventures.

 

*Terms apply.

 

Disclaimer: ARC The statistics are based on average round-trip ticket prices between January and August 2023. The percentages you see are averages.

 

Frequently asked questions

Is it cheaper to buy a plane ticket from IST to Kastamonu Airport last minute?
Booking your journey from IST to Kastamonu Airport (KFS) last minute could save you some dough if you’re lucky enough to find a real steal. However, airfares typically don’t come down in price as the departure date nears. If you procrastinate, flights could also be sold out or the best seats taken (because who wants the middle seat?). If you want to be on the safe side, book well in advance of the date you want to leave. In fact, you can find some of the biggest deals up to a year in advance. If your favorite airline hasn’t released tickets yet, check back regularly as offers are constantly updated on Expedia.
What airports do you fly into for Kastamonu from Istanbul?
Flights from Istanbul to Kastamonu arrive at Kastamonu Airport (KFS). Roughly 4 mi south of central Kastamonu, it’s the main gateway to this awesome city. When it’s time to check out the sights, Kastamonu Museum and Kastamonu Karting Park should be at the top of your list.
Can I change the date of my flight from IST to KFS?
You can quickly make changes to your IST to Kastamonu Airport flight by logging in to the Expedia Trips portal. Before you make any amendments, review the rules in your itinerary to learn what the carrier will allow you to do and what fees apply for changes. Some airlines have a change fee per person, on top of any difference in ticket prices. But if you booked in the last 24 hours, you may be able to cancel for free and arrange new flights. You can also check out our Customer Service portal for more useful advice and to chat with our Virtual Agent.

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*Available to One Key members.