Istanbul IST to Kos KGS flight with Aegean Airlines

Cheap plane tickets from Istanbul to Kos can start from as little as 112S$ when you book in advance. The average flight ticket price for Istanbul to Kos is 300S$; however, prices vary depending on the time of day and class and they tend to be more expensive on the day.

The average journey time by plane from Istanbul to Kos is 4h 40m to travel the 480 km long route. Journey times can vary on weekends and holidays, so use our Journey Planner to search for a specific date.

The earliest flight from Istanbul to Kos leaves at 1:35 am. Plan your trip with the Journey Planner from Omio.

The latest flight from Istanbul to Kos leaves at 10:35 pm.

There are 12 flights a day from Istanbul to Kos which require at least one change with Aegean Airlines. Schedules can vary on holidays or weekends with fewer flights.

When taking a flight from Istanbul to Kos, you can count on Aegean Airlines for the best way to get you to Kos. You can also check all possible airlines who offer a service between Istanbul and Kos and compare the amenities they offer before buying a plane ticket.

The cheapest month for a flight from Istanbul to Kos is August.

Yes, you can take a flight between Istanbul and Kos.

There is a time difference of 1 h between Istanbul and Kos in winter.

For international flights we recommend to arrive 2.5 to 3 hours before departure. Please check the website of your departure airport if in doubt. Some airports may offer booking time slots for security checks or offer additional information on when to get there based on time of day.

Most airlines permit carry-on bags that fit within specific dimensions (e.g., 22 x 14 x 9 inches or 56 x 36 x 23 cm), including handles and wheels. Bags must fit in the overhead bin or under the seat in front of you.

Many airlines impose weight limits, commonly ranging between 7 kg (15 lbs) and 12 kg (26 lbs). Typically, passengers are allowed one carry-on bag and one personal item (for example a purse, laptop bag, or backpack). Personal items must fit under the seat in front of you. Budget Airlines (like Ryanair or Wizz Air) have stricter size and weight limits, often requiring fees for larger carry-ons. Full-Service Airlines have more lenient policies, sometimes including more spacious dimensions or higher weight limits depending on your ticket class.

The list of items prohibited on an airplane varies by country and airline, but in general, the following items are not allowed in carry-on or checked baggage: Weapons and self-defence items, sharp objects, flammable materials, explosives, toxic substances, or liquids over 100ml (except for medications and baby essentials). In checked baggage, firearms (without authorization), explosives, large lithium batteries, and hazardous chemicals are prohibited. Electronic cigarettes must be in carry-on bags, while alcohol and dry ice have restrictions. Always check with your airline for specific regulations.