Cheap Flights from Istanbul to Kos from $364

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Flight deals from Istanbul to Kos Airport

Looking for a cheap last-minute deal or the best return flight from Istanbul to Kos Airport? If you want to travel next month, return fares start from $575. Find the lowest prices on one-way and return tickets right here.

Kos.$364 per passenger.Departing Sat, 16 May, returning Wed, 3 Jun.Return flight with Aegean Airlines.Outbound indirect flight with Aegean Airlines, departs from Istanbul on Sat, 16 May, arriving in Kos.Inbound indirect flight with Aegean Airlines, departs from Kos on Wed, 3 Jun, arriving in Istanbul.Price includes taxes and charges.From $364, select.

Kos.$415 per passenger.Departing Fri, 15 May, returning Tue, 19 May.Return flight with Aegean Airlines.Outbound indirect flight with Aegean Airlines, departs from Istanbul on Fri, 15 May, arriving in Kos.Inbound indirect flight with Aegean Airlines, departs from Kos on Tue, 19 May, arriving in Istanbul.Price includes taxes and charges.From $415, select.

Kos.$455 per passenger.Departing Fri, 7 Aug, returning Sun, 9 Aug.Return flight with SKY express.Outbound indirect flight with SKY express, departs from Istanbul on Fri, 7 Aug, arriving in Kos.Inbound indirect flight with SKY express, departs from Kos on Sun, 9 Aug, arriving in Istanbul.Price includes taxes and charges.From $455, select.

Kos.$477 per passenger.Departing Sun, 7 Jun, returning Fri, 12 Jun.Return flight with SKY express.Outbound indirect flight with SKY express, departs from Istanbul on Sun, 7 Jun, arriving in Kos.Inbound indirect flight with SKY express, departs from Kos on Fri, 12 Jun, arriving in Istanbul.Price includes taxes and charges.From $477, select.

Kos.$513 per passenger.Departing Tue, 24 Mar, returning Fri, 27 Mar.Return flight with Aegean Airlines.Outbound indirect flight with Aegean Airlines, departs from Istanbul on Tue, 24 Mar, arriving in Kos.Inbound indirect flight with Aegean Airlines, departs from Kos on Fri, 27 Mar, arriving in Istanbul.Price includes taxes and charges.From $513, select.

Kos.$519 per passenger.Departing Fri, 17 Jul, returning Sun, 2 Aug.Return flight with SKY express.Outbound indirect flight with SKY express, departs from Istanbul on Fri, 17 Jul, arriving in Kos.Inbound indirect flight with SKY express, departs from Kos on Sun, 2 Aug, arriving in Istanbul.Price includes taxes and charges.From $519, select.

Kos.$519 per passenger.Departing Thu, 25 Jun, returning Sun, 5 Jul.Return flight with SKY express.Outbound indirect flight with SKY express, departs from Istanbul on Thu, 25 Jun, arriving in Kos.Inbound indirect flight with SKY express, departs from Kos on Sun, 5 Jul, arriving in Istanbul.Price includes taxes and charges.From $519, select.

Kos.$536 per passenger.Departing Wed, 29 Apr, returning Sun, 17 May.Return flight with SKY express.Outbound indirect flight with SKY express, departs from Istanbul on Wed, 29 Apr, arriving in Kos.Inbound indirect flight with SKY express, departs from Kos on Sun, 17 May, arriving in Istanbul.Price includes taxes and charges.From $536, select.

Kos.$544 per passenger.Departing Fri, 27 Mar, returning Sun, 5 Apr.Return flight with SKY express.Outbound indirect flight with SKY express, departs from Istanbul on Fri, 27 Mar, arriving in Kos.Inbound indirect flight with SKY express, departs from Kos on Sun, 5 Apr, arriving in Istanbul.Price includes taxes and charges.From $544, select.

Kos.$562 per passenger.Departing Mon, 13 Jul, returning Sat, 18 Jul.Return flight with SKY express.Outbound indirect flight with SKY express, departs from Istanbul on Mon, 13 Jul, arriving in Kos.Inbound indirect flight with SKY express, departs from Kos on Sat, 18 Jul, arriving in Istanbul.Price includes taxes and charges.From $562, select.

Kos.$575 per passenger.Departing Sat, 11 Apr, returning Sun, 19 Apr.Return flight with SKY express.Outbound indirect flight with SKY express, departs from Istanbul on Sat, 11 Apr, arriving in Kos.Inbound indirect flight with SKY express, departs from Kos on Sun, 19 Apr, arriving in Istanbul.Price includes taxes and charges.From $575, select.

Find the cheapest month to fly from Istanbul to Kos

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

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Istanbul to Kos: Flight information

The things to know before you go.

Cheapest flight found	$364
Cheapest month to fly	May

Finding cheap flights from Istanbul to Kos: Frequently asked questions

How much are return flights from Istanbul to Kos?

The best price we found for a return flight from Istanbul to Kos is $364. 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.

Which airlines fly direct from Istanbul to Kos?

Currently, there are no airlines that fly direct from Istanbul to Kos. But we found flights with one stop from $364.

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

As of March 2026, there are no flights flying from Istanbul to Kos.

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

The cheapest month to fly from Istanbul to Kos is usually May.

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

After crunching the numbers on our flight calendar, we found that it is currently cheapest to fly from Istanbul to Kos Airport on Saturday, 16 May 2026.

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

No airlines currently offer direct flights between Istanbul and Kos Airport. Most routes have one or more stops.

How can I find the best flight deal to Kos?

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 Kos 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 Kos?

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

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

The cheapest airline that flies to Kos is Aegean Airlines .

Travelling from Istanbul to Kos Ippokratis International Airport (KGS): What you need to know

Kos Ippokratis International Airport is located in Kos. The city runs on the UTC+2 timezone and is one hour behind Istanbul.
To ensure you get on your flight from Istanbul to KGS, leave plenty of time to navigate the airport and find your gate. Arriving two hours ahead of international departures and an hour before domestic flights is the standard rule.
You'll want to head there even earlier during popular months like August. Aim for two hours before domestic departures and as much as four hours for an international flight. After checking in, you can use any extra time to grab something to eat or simply relax.

Airports in Istanbul

Istanbul Airport (IST)

Stopovers are the perfect opportunity to break up your trip and maybe even tour another city. When searching for cheap flights from Istanbul to KGS departing from Istanbul Airport (IST), uncheck the 'Direct flights only' box to find out where you can stop along the way. Your journey might pause in:
- Rome Leonardo da Vinci Fiumicino Airport (FCO)
- Athens Eleftherios Venizelos International Airport (ATH)
- Thessaloniki International Makedonia Airport (SKG)
IST is about 40 kilometres from central Istanbul. If you're driving, ride-sharing or catching a taxi from the centre, it'll take 45 minutes or so to get there, depending on the traffic. If you're taking public transport, expect the journey time to be around 1 hour 10 minutes.
Want a hassle-free start to your trip? Stay near Istanbul Airport. Whether you have an early flight from Istanbul to Kos Ippokratis International Airport or aren't a fan of being rushed, these hotels are the ideal choice:

Istanbul Sabiha Gokcen International Airport (SAW)

Maximise your holiday with a stopover on your flight from Istanbul to Kos Ippokratis International Airport. Check out these connections between Istanbul Sabiha Gokcen International Airport and KGS:
- Rome Leonardo da Vinci Fiumicino Airport (FCO)
- Athens Eleftherios Venizelos International Airport (ATH)
- Vienna International Airport (VIE)
SAW is around 48 kilometres from central Istanbul. It'll take you 1 hour 5 minutes or so to get to the airport in a car from the city centre. Public transport takes approximately 1 hour 40 minutes.
Kick off your holiday early with an additional night away from home. Before your Istanbul to KGS flight, kick back in one of these hotels close to Istanbul Sabiha Gokcen International Airport:
77% of all departures from Istanbul Sabiha Gokcen International Airport arrive within the expected time frame.

About Kos Ippokratis International Airport (KGS)

The last thing you need is a long journey to your hotel if you're arriving on a late flight from Istanbul to Kos Ippokratis International Airport. Stay at one of these accommodation options near KGS instead:
Go wherever you want, whenever you want with a Kos Ippokratis International Airport rental car. Pick up your wheels from Abbycar, Green Motion or Caldera and experience more of Kos and beyond.
Booking your ride around three weeks ahead of your Istanbul to Kos Ippokratis International Airport flight can help you find the best deal.

Getting from Kos Ippokratis International Airport (KGS) to central Kos

From Kos Ippokratis International Airport, central Kos is around 26 kilometres away. It takes about 30 minutes to reach the city centre by car.
If you're using public transport, expect a journey of roughly 40 minutes.

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

The cheapest price we've found for a one-way ticket from Istanbul to Kos Ippokratis International Airport is $188. For a return flight on this route, the best price is $364. Depending on how early you book and the availability, these fares can change.
Don't leave things to the last moment. You're more likely to find cheap flights from Istanbul to KGS if you book early. Airlines often have some great early bird deals.
If you're flexible with your travel dates, use the 'Whole month' tool. It'll show you the cheapest price across every month when searching for your Istanbul to Kos Ippokratis International Airport ticket.
Spend less time searching for cheap plane tickets from Istanbul to KGS by setting up a Price Alert. We'll send you an email or push notification on the app when a new discounted fare appears.
Save on your flight from Istanbul to Kos Ippokratis International Airport by using filters. Select your ideal duration, number of stops and airlines, then sort the results by 'Cheapest' for the best deals.

More about Kos

When it comes to searching for somewhere to lay your head, you'll find the best stays in Kos right here. Check out these options as soon as you've booked your flight from Istanbul to Kos Ippokratis International Airport:
Every great holiday has to include a little sightseeing. Paradise Beach, Agios Stefanos Beach and Xerokambos (Exotic Beach) are attractions you won't want to skip in Kos.

Explore more of Greece

Rethymno is just one of the many places in Greece waiting to be discovered once you've seen Kos. Around 290 kilometres away to the southwest, top sights here include Rethymnon Old Town, Rethymnon beach and Venetian Harbour.
Mytilene is another well-known destination in Greece and is around 257 kilometres north of Kos. No trip is complete without visiting Castle of Mytilene, Byzantine Museum and Mytilene Castle.