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CA $128 Cheap Flights from Istanbul (IST) to Kos (KGS)

View CA $128 flight on Tue, Oct 20, 2026Opens in a new window

Popular airlines from Istanbul Airport (IST) to Kos (KGS-Kos Island Intl.)

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Cheap flights from Istanbul (IST) to Kos (KGS)

Prices were available within the past 7 days and start at CA $128 for one-way flights and CA $301 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Aegean
Tue, Oct 20 - Fri, Oct 23
IST
Istanbul
KGS
Kos
CA $301 Roundtrip, found 3 days ago
CA $301
Roundtrip
found 3 days ago
Select Aegean flight, departing Tue, Oct 20 from Istanbul to Kos, returning Fri, Oct 23, priced at CA $301 found 3 days ago
Aegean
Tue, Oct 20 - Fri, Oct 23
IST
Istanbul
KGS
Kos
CA $316 Roundtrip, found 3 days ago
CA $316
Roundtrip
found 3 days ago
Select Aegean flight, departing Tue, Oct 20 from Istanbul to Kos, returning Fri, Oct 23, priced at CA $316 found 3 days ago
Aegean
Tue, Oct 20 - Fri, Oct 23
IST
Istanbul
KGS
Kos
CA $326 Roundtrip, found 3 days ago
CA $326
Roundtrip
found 3 days ago
Select Aegean flight, departing Tue, Oct 20 from Istanbul to Kos, returning Fri, Oct 23, priced at CA $326 found 3 days ago
Aegean
Tue, Oct 20 - Fri, Oct 23
IST
Istanbul
KGS
Kos
CA $340 Roundtrip, found 3 days ago
CA $340
Roundtrip
found 3 days ago
Select Aegean flight, departing Tue, Oct 20 from Istanbul to Kos, returning Fri, Oct 23, priced at CA $340 found 3 days ago
Aegean
Tue, Oct 20 - Fri, Oct 23
IST
Istanbul
KGS
Kos
CA $341 Roundtrip, found 3 days ago
CA $341
Roundtrip
found 3 days ago
Select Aegean flight, departing Tue, Oct 20 from Istanbul to Kos, returning Fri, Oct 23, priced at CA $341 found 3 days ago
Aegean
Tue, Oct 20 - Fri, Oct 23
IST
Istanbul
KGS
Kos
CA $342 Roundtrip, found 3 days ago
CA $342
Roundtrip
found 3 days ago
Select Aegean flight, departing Tue, Oct 20 from Istanbul to Kos, returning Fri, Oct 23, priced at CA $342 found 3 days ago
Aegean
Tue, Oct 20 - Fri, Oct 23
IST
Istanbul
KGS
Kos
CA $355 Roundtrip, found 3 days ago
CA $355
Roundtrip
found 3 days ago
Select Aegean flight, departing Tue, Oct 20 from Istanbul to Kos, returning Fri, Oct 23, priced at CA $355 found 3 days ago
Aegean
Tue, Oct 20 - Fri, Oct 23
IST
Istanbul
KGS
Kos
CA $357 Roundtrip, found 3 days ago
CA $357
Roundtrip
found 3 days ago
Select Aegean flight, departing Tue, Oct 20 from Istanbul to Kos, returning Fri, Oct 23, priced at CA $357 found 3 days ago
Aegean
Tue, Oct 20 - Fri, Oct 23
IST
Istanbul
KGS
Kos
CA $366 Roundtrip, found 3 days ago
CA $366
Roundtrip
found 3 days ago
Select Aegean flight, departing Tue, Oct 20 from Istanbul to Kos, returning Fri, Oct 23, priced at CA $366 found 3 days ago
SKY express
Tue, Oct 20 - Fri, Oct 23
IST
Istanbul
KGS
Kos
CA $413 Roundtrip, found 3 days ago
CA $413
Roundtrip
found 3 days ago
Select SKY express flight, departing Tue, Oct 20 from Istanbul to Kos, returning Fri, Oct 23, priced at CA $413 found 3 days ago

Frequently asked questions

How much does a flight from Istanbul (IST) to Kos (KGS-Kos Island Intl.) cost?
You can find one-way and return flights from IST to KGS with Expedia. Flight prices vary based on the month and day of the week you want to travel, as well as the airline and how far in advance you book your ticket. Filter your search on Expedia by "Price (lowest to highest)" to see our cheapest fares first, and use the Price Tracking tool to receive alerts when IST to KGS ticket fares go up or down.
What is the cheapest month to fly from Istanbul (IST) to Kos (KGS-Kos Island Intl.)?
The cheapest months to fly from IST to KGS are typically during off-peak season when demand is low. Traveling in off-peak or shoulder months is usually a good way to secure cheap tickets, just remember to avoid flying during holidays if you are able to. Use the calendar view in your search to see which months have low fares on this route.
Which airlines fly direct from Istanbul (IST) to Kos (KGS)?
Enter IST to KGS and your travel dates, then apply the 'Nonstop' filter to see only direct flights.
How do I find cheap flights from Istanbul (IST) to Kos (KGS)?
To find a cheap flight from Istanbul (IST) to Kos (KGS), be flexible with your dates. Traveling outside of peak vacation months and booking a mid-week flight can help you save. Early morning and late night flights are often more affordable, too. Expedia allows you to compare flight times, airlines and routes all in one place to find low fares. You can also set up Price Tracking and receive alerts when fares go up or down.
What is the best time to fly from Istanbul (IST) to Kos (KGS-Kos Island Intl.)?
The best time to fly is usually mid-week (Tuesday or Wednesday) and during early morning hours as flights tend to be cheaper, less crowded, and generally more on-time. Avoid major holidays and peak vacation seasons for smoother travel. Combining off-peak days and hours often gives the best combination of cost, comfort, and convenience.
How many flights per day from Istanbul (IST) to Kos (KGS-Kos Island Intl.)?
There are approximately 9 connecting flights per day from Istanbul (IST) to Kos (KGS-Kos Island Intl.). Some common connection points include Eleftherios Venizelos (ATH), Frederic Chopin (WAW), and Nikos Kazantzakis (HER).
What is the earliest flight from Istanbul (IST) to Kos (KGS-Kos Island Intl.)?
The earliest flight from Istanbul (IST) to Kos (KGS-Kos Island Intl.) typically departs at around 1:35 AM local time. This route is operated by Turkish Airlines and Aegean. This is a seasonal service, active only in October. An early departure like this can help you make the most of your time at your destination. To compare early flights on Expedia, select the "Early Morning" and "Morning" filters in your search.
What day of the week has the most flights from Istanbul (IST) to Kos (KGS-Kos Island Intl.)?
You'll typically find the most flights from Istanbul (IST) to Kos (KGS-Kos Island Intl.) on a Saturday, with around 11 flights available. This gives you a good selection of options for your travel plans. Major airlines on this route include Aegean, LOT-Polish Airlines, and Turkish Airlines. Saturdays offer notably more flight options compared to other days of the week, like Thursday which has around 3 flights.
What are the most popular departure times for flights from Istanbul (IST) to Kos (KGS-Kos Island Intl.)?
The most popular departure times for flights from Istanbul (IST) to Kos (KGS-Kos Island Intl.) are in the afternoon, from 3pm to 6pm. Many major carriers, including Aegean and LOT-Polish Airlines, offer flights during this window. This timing works well because it allows you to have a productive morning before your flight and arrive at your destination in the early evening.
How long does it take to fly from Istanbul (IST) to Kos (KGS-Kos Island Intl.)?
There are no nonstop flights from Istanbul (IST) to Kos (KGS-Kos Island Intl.). For flights with one stop, you can expect the journey to typically take around 3 hours 48 minutes. Flights with two or more stops usually take longer, averaging about 15 hours. The distance between these two destinations is approximately 515 kilometres. Keep in mind that actual flight times can vary based on factors like layover duration, routing, and wind conditions.
Can you fly business or first class from Istanbul (IST) to Kos (KGS-Kos Island Intl.)?
Yes, you can fly business class between IST and KGS. You can fly business class with Turkish Airlines and Aegean.
How do I earn miles on a Istanbul (IST) to Kos (KGS-Kos Island Intl.) flight with Expedia?
It's easy to earn miles on a Istanbul (IST) to Kos (KGS-Kos Island Intl.) flight when you book with Expedia. Before you confirm your booking, simply select your frequent flyer program and enter your program number. As a member of One Key™, you can also earn OneKeyCash™* on top of your airline miles when you book with Expedia.*Excludes taxes and fees. OneKeyCash is not redeemable for cash and can only be used on Expedia and other participating brands.
What airports do you fly into for Kos (KGS) from Istanbul (IST)?
If you're planning to travel to Kos from Istanbul Airport (IST), you can fly directly into Kos Island Intl. (KGS). Some flights may connect through major hubs like Frederic Chopin (WAW) or Nikos Kazantzakis (HER) before reaching Kos. Compare routes and airports on Expedia to find the best flight options for your travel plans.
Is it cheaper to buy a plane ticket from Istanbul (IST) to Kos (KGS-Kos Island Intl.) at the last minute?
Typically, booking a last minute flight from Istanbul (IST) to Kos (KGS-Kos Island Intl.) will be more expensive than booking in advance. As the departure date approaches, there are usually fewer seats available which can drive up the cost. However, if there's some wiggle room with your travel dates and times, you could bag a cheap last-minute fare.
Is it cheaper to book a Istanbul (IST) to Kos (KGS-Kos Island Intl.) flight and hotel package?
Securing a Istanbul (IST) to Kos (KGS-Kos Island Intl.) flight and hotel package is usually cheaper than booking separately. With Expedia, you can enjoy the ease of organizing your travels all in one place. Select from our extensive range of stays and then add flights, activities and car rentals to your booking. Bundle everything together, and you could save hundreds of dollars.
Can I cancel or change the date of my flight from Istanbul (IST) to Kos (KGS)?
If you booked your Istanbul (IST) to Kos (KGS) flight within the last 24 hours, you may be able to modify or cancel it without any fees. Depending on the airline and the type of ticket you have, additional charges may apply for changes beyond this timeframe. Airline policies and contact information can be found in your itinerary or confirmation email. Or, head to our Customer Service portal if you'd like more information.

Travel information

Origin airport
Istanbul
Destination airport
Kos Island Intl.
Roundtrip price
CA $301
Distance
512 km

Book with confidence

Istanbul to Kos Flights

The easy way to book your flights from Istanbul to Kos 

With Expedia, it’s simple to find and book flights to Kos from Istanbul whether you’re traveling for business or pleasure. Enter your travel dates, hit search, and choose your flight from 20 airlines that cover this route. There are nonstop flights to Kos Island Intl., too.  

Choose your preferred carrier and cabin class with the advanced search tool and select your ideal departure time. Then, if you want, you can see just nonstop or refundable flights. And if you’re traveling last minute, just enter the date to check out flights from Istanbul to Kos today, tomorrow, or this week.  

 

Save dollars with cheap flights from Istanbul, IST to Kos Island Intl., KGS 

Sort your search results by price to find great deals on your flight from Istanbul to Kos—you get all your cheapest options first. Grab yourself a bargain now—the lowest price on flights to Kos from Istanbul currently is just CA $301 rising to CA $645.  

Here are more money-saving tips: 

  • Fly in October when flight prices are normally at their lowest 
  • Book about a month to 6 weeks before you travel for the best prices to Kos  
  • Avoid peak season and weekends when flights can cost more
  • Early morning and late-night flights are sometimes cheaper, so try varying your travel times 
  • One surefire way to save money on your flight is to book your flight and hotel together with Expedia. Sometimes, the savings are so large that the flight is basically free! 

 

Reasons to choose Expedia for your flight to Kos from Istanbul 

Whatever your destination, budget, or reason to travel, in just one quick search, you can choose from loads of flights, airlines, and cabin classes. The filters make it quick and easy to find your ideal flights, and if you choose one of the flexible options, you won’t be charged to change your flight. So book your flight to Kos with Expedia today.

Istanbul to Kos Flights

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*Available to Expedia members.