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Cheap Flights from Kos to Istanbul

Compare Kos to Istanbul flight deals

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

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Flight deals from Kos to Istanbul

Looking for a cheap last-minute deal or the best return flight from Kos to Istanbul? Find the lowest prices on one-way and return tickets right here.
Istanbul.Rs24,634 per passenger.Departing Tue, 7 Apr.One-way flight with Aegean Airlines.Outbound indirect flight with Aegean Airlines, departs from Kos on Tue, 7 Apr, arriving in Istanbul.Price includes taxes and charges.From Rs24,634, select.
Istanbul.Rs28,611 per passenger.Departing Sun, 9 Nov.One-way flight with SKY express.Outbound indirect flight with SKY express, departs from Kos on Sun, 9 Nov, arriving in Istanbul Sabiha.Price includes taxes and charges.From Rs28,611, select.
Istanbul.Rs28,936 per passenger.Departing Sun, 19 Oct.One-way flight with Aegean Airlines.Outbound indirect flight with Aegean Airlines, departs from Kos on Sun, 19 Oct, arriving in Istanbul.Price includes taxes and charges.From Rs28,936, select.
Istanbul.Rs29,121 per passenger.Departing Tue, 19 Aug.One-way flight with Condor.Outbound indirect flight with Condor, departs from Kos on Tue, 19 Aug, arriving in Istanbul Sabiha.Price includes taxes and charges.From Rs29,121, select.
Istanbul.Rs35,160 per passenger.Departing Wed, 10 Sep.One-way flight with Aegean Airlines.Outbound indirect flight with Aegean Airlines, departs from Kos on Wed, 10 Sep, arriving in Istanbul.Price includes taxes and charges.From Rs35,160, select.
Istanbul.Rs71,962 per passenger.Departing Sun, 19 Jul.One-way flight with Aegean Airlines.Outbound indirect flight with Aegean Airlines, departs from Kos on Sun, 19 Jul, arriving in Istanbul.Price includes taxes and charges.From Rs71,962, select.

Find the cheapest month to fly from Kos to Istanbul

We’re always keeping an eye on fares, so you can find the best one in seconds. It looks like Kos to Istanbul flights are currently cheapest in April.
Aug
from Rs29,121
Sep
from Rs35,160
Oct
from Rs28,936
Nov
from Rs28,611
Dec
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Jan
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Feb
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Mar
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Apr
from Rs24,634
May
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Jun
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Jul
from Rs71,962

Alternative Kos to Istanbul routes

Looking for the cheapest, fastest or easiest route from Kos to Istanbul? You could fly into the following airports instead.

Kos to Istanbul: Flight information

The things to know before you go.
Cheapest flight foundRs24,634
Cheapest month to flyApril

Finding cheap flights from Kos to Istanbul: Frequently asked questions

There are 2 airports in Istanbul: Istanbul Sabiha and Istanbul.
The best price we found for a return flight from Kos to Istanbul is Rs49,446. 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.
Currently, there are no airlines that fly direct from Kos to Istanbul. But we found flights with one or more stops from Rs49,446.
As of August 2025, there are no flights flying from Kos to Istanbul.
The cheapest month to fly from Kos to Istanbul is usually January.
If you're flying from Kos Airport, the cheapest airport near Istanbul is Istanbul – which is 34.4 km away from the centre of Istanbul. We've found flights into this airport from Rs49,446.
After crunching the numbers on our flight calendar, we found that it's currently cheapest to fly from Kos Airport to Istanbul on Monday, 12 January 2026.
No airlines currently offer direct flights between Kos Airport and Istanbul. Most routes have one or more stops.
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 Istanbul 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.
We crunched all the numbers in our flight calendar and it looks like the cheapest time to book a flight to Istanbul is around 40 days in advance, so don’t leave your flight to the last minute.
In August, the average temperature is usually around 25°C. August is typically the warmest month in Istanbul, when it usually averages around 27°C. You can expect the least rain in August. The coldest month is January, with temperatures averaging 4°C. The rainiest month is December.
Currently, Aegean Airlines offers the cheapest flight tickets to Istanbul.

Travelling from Kos Airport (KGS) to Istanbul: what you need to know

  • To avoid missing your KGS to Istanbul flight, allow plenty of time to check in and drop off your luggage. Arriving two hours before international departures and one hour before domestic flights is the general rule.

  • Think about adding a stopover to potentially score a cheaper flight ticket from KGS to Istanbul. Simply uncheck 'Direct flights only' during your search. Give yourself a breather (and maybe even a better deal) by stopping at one of these connection hubs:

    • Leonardo da Vinci-Fiumicino Airport (FCO)

    • Eleftherios Venizelos International Airport (ATH)

    • Vienna International Airport (VIE)

  • Kos Airport has an excellent on-time performance, so flight disruptions are less likely. Departures from KGS arrive on schedule 89.58% of the time.

How to find the cheapest flights from Kos Airport (KGS) to Istanbul

  • Rs24,634 is currently the lowest price for a one-way Kos Airport to Istanbul flight. Return flight tickets start at Rs49,446. These fares may change depending on demand.

  • Don't leave things to the last moment. You're more likely to land cheap flights from KGS to Istanbul if you book early. Airlines often have some excellent early bird rates.

  • If you have flexibility with your travel plans, make the most of the 'Whole month' search tool. It'll find the lowest price across each month when looking for a Kos Airport to Istanbul ticket.

  • Save time searching for cheap flights from KGS to Istanbul by setting up a Price Alert. You'll receive an email or notification on the app when a special offer becomes available.

  • Tailor your trip with filters. Pick your preferred departure and arrival times, total journey duration and airlines. You can also sort your results by 'Cheapest,' 'Best' or 'Fastest' flights from Kos Airport to Istanbul.

Airports in Istanbul

Istanbul Ataturk Airport (IST)

  • The distance from Istanbul Ataturk Airport (IST) to central Istanbul is roughly 48 kilometres. It takes around 50 minutes to get to the centre driving.

  • Travelling to the centre on public transport takes around 1 hour 45 minutes.

  • If you're arriving on a late flight from Kos Airport to Istanbul, nothing beats the convenience of staying near the terminal. Grab your bags from the carousel and then be showered and resting soon after at one of these accommodation options near IST:

  • Go wherever you want, whenever you want with an Istanbul Ataturk Airport rental car. Pick up a set of wheels from Hit, Avec car rentals or Eren Rent a Car and venture far and wide through Istanbul and beyond.

  • To get the best deal, book your ride from Istanbul Ataturk Airport about two weeks in advance of your flight from KGS to Istanbul.

Sabiha Gokcen International Airport (SAW)

  • Sabiha Gokcen International Airport (SAW) is about 48 kilometres from the centre of Istanbul. Following your flight from Kos Airport to Istanbul, it'll take you around 55 minutes to get to the heart of the city in a cab or ride-share.

  • If you're catching public transport, it'll take around 1 hour 30 minutes.

  • Hang up the 'Do not disturb' sign and rest at a hotel near SAW. Here are a few options where you can take a load off after your KGS to Istanbul flight:

  • Forget about public transport schedules or cab lines. Grab a Sabiha Gokcen International Airport rental car and let your trip unfold on your terms. Compare offers from Essence, Eren Rent a Car and 724 Rent.

  • Get the pick of the lot. Reserving your ride from SAW four weeks in advance often means better deals and a greater range of vehicles.

Best time to go to Istanbul

  • Visit Istanbul during high season if you want a busy atmosphere, but remember that hotel prices are usually higher. Alternatively, book flights from Kos Airport to Istanbul during the off-season when prices are cheaper and it's quieter.

  • The warmest month in Istanbul is August, with temperatures ranging between 20ºC and 30ºC. Lock in your Kos Airport to Istanbul flight ticket then if that's your idea of comfortable weather.

  • January has average temperatures of between 2ºC and 11ºC. Look for a cheap ticket from KGS to Istanbul around that time if you like travelling in cooler conditions.

More about Istanbul

  • When it comes to looking for somewhere to rest your head, you'll find the best stays in Istanbul right here. Browse these options after you've booked your flight from Kos Airport to Istanbul:

  • There are so many things to explore in this city it can be tricky to work out where to begin. The Basilica Cistern, Topkapi Palace and Galata Tower are leading attractions which should be on any well-planned Istanbul itinerary.

Explore more of Türkiye (Turkey)

  • You've done Istanbul, now it's time to discover other corners of Türkiye (Turkey). Journey around 354 kilometres east to Ankara to tick off its top attractions. From Museum of Anatolian Civilizations to Kocatepe Mosque (Kocatepe Camii) and Genclik Park, you'll have a packed itinerary ahead.

  • If you want to check out another well-known destination in Türkiye (Turkey), head for Izmir, roughly 322 kilometres south-west of Istanbul. Kordonboyu, Kadifekale Castle and Alsancak are the start of reasons to visit.

Plan the rest of your trip from Kos to Istanbul

Prices shown on this page are estimated lowest prices only. Found in the last 45 days.