£118 Cheap Flights from Istanbul (ISTA) to Kos (KGS)

Q: How much are return flights from Istanbul to Kos?

The best price we found for a return flight from Istanbul to Kos is £118. 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.

Q: 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 £118.

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

As of May 2025, there are no flights flying from Istanbul to Kos.

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

The cheapest month to fly from Istanbul to Kos is usually May 2025.

Q: 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 Thursday, 16 October 2025 .

Q: 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.

Q: 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.

Q: 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.

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

The cheapest airline that flies to Kos is Aegean Airlines .

Compare Istanbul to Kos flight deals

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

Book the best Kos fare with no extra fees

4.4 out of 5 based on 19,817 reviews

Flight deals Cheapest month Find the best route Route info FAQs Tips and advice

Flight deals from Istanbul to Kos

Looking for a cheap last-minute deal or the best return flight from Istanbul to Kos? Find the lowest prices on one-way and return tickets right here.

Kos.£118 per passenger.Departing Sat, 15 Nov, returning Sat, 22 Nov.Return flight with Aegean Airlines.Outbound indirect flight with Aegean Airlines, departs from Istanbul on Sat, 15 Nov, arriving in Kos.Inbound indirect flight with Aegean Airlines, departs from Kos on Sat, 22 Nov, arriving in Istanbul.Price includes taxes and charges.From £118, select.

Kos.£118 per passenger.Departing Thu, 16 Oct, returning Tue, 21 Oct.Return flight with Aegean Airlines.Outbound indirect flight with Aegean Airlines, departs from Istanbul on Thu, 16 Oct, arriving in Kos.Inbound indirect flight with Aegean Airlines, departs from Kos on Tue, 21 Oct, arriving in Istanbul.Price includes taxes and charges.From £118, select.

Kos.£127 per passenger.Departing Fri, 5 Dec, returning Mon, 8 Dec.Return flight with Aegean Airlines.Outbound indirect flight with Aegean Airlines, departs from Istanbul on Fri, 5 Dec, arriving in Kos.Inbound indirect flight with Aegean Airlines, departs from Kos on Mon, 8 Dec, arriving in Istanbul.Price includes taxes and charges.From £127, select.

Kos.£131 per passenger.Departing Mon, 13 Oct, returning Sun, 2 Nov.Return flight with SKY express.Outbound indirect flight with SKY express, departs from Istanbul on Mon, 13 Oct, arriving in Kos.Inbound indirect flight with SKY express, departs from Kos on Sun, 2 Nov, arriving in Istanbul.Price includes taxes and charges.From £131, select.

Kos.£133 per passenger.Departing Sun, 15 Mar, returning Wed, 18 Mar.Return flight with SKY express and Aegean Airlines.Outbound indirect flight with SKY express, departs from Istanbul on Sun, 15 Mar, arriving in Kos.Inbound indirect flight with Aegean Airlines, departs from Kos on Wed, 18 Mar, arriving in Istanbul.Price includes taxes and charges.From £133, select.

Kos.£140 per passenger.Departing Mon, 22 Sep, returning Sun, 12 Oct.Return flight with SKY express.Outbound indirect flight with SKY express, departs from Istanbul on Mon, 22 Sep, arriving in Kos.Inbound indirect flight with SKY express, departs from Kos on Sun, 12 Oct, arriving in Istanbul.Price includes taxes and charges.From £140, select.

Kos.£151 per passenger.Departing Thu, 25 Sep, returning Tue, 30 Sep.Return flight with Aegean Airlines.Outbound indirect flight with Aegean Airlines, departs from Istanbul on Thu, 25 Sep, arriving in Kos.Inbound indirect flight with Aegean Airlines, departs from Kos on Tue, 30 Sep, arriving in Istanbul.Price includes taxes and charges.From £151, select.

Kos.£175 per passenger.Departing Fri, 29 Aug, returning Thu, 4 Sep.Return flight with Aegean Airlines.Outbound indirect flight with Aegean Airlines, departs from Istanbul on Fri, 29 Aug, arriving in Kos.Inbound indirect flight with Aegean Airlines, departs from Kos on Thu, 4 Sep, arriving in Istanbul.Price includes taxes and charges.From £175, 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 October.

May

Jun

Jul

Aug

Sep

Oct

Nov

Dec

Jan

Feb

Mar

Apr

Istanbul to Kos: Flight information

The things to know before you go.

Cheapest flight found	£118
Cheapest month to fly	October

Finding cheap flights from Istanbul to Kos: Frequently asked questions

How much are return flights from Istanbul to Kos?

Which airlines fly direct from Istanbul to Kos?

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

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

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

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

How can I find the best flight deal to Kos?

When is the best time to book flights to Kos?

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

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

Greece is 1 hour behind Istanbul. Kos Airport is located in Greece, which operates on the UTC+2 timezone.
Leave plenty of time to get on your flight from Istanbul to KGS. As a rule of thumb, arrive two hours before international departures and an hour ahead for domestic flights.
You'll want to head there even earlier during popular months like August. Aim for two hours before a domestic departure and four hours ahead of international flights. After checking in, you can use any extra time to relax or find something to eat.

Airports in Istanbul

Istanbul Ataturk Airport (IST)

A stopover is the perfect opportunity to take a travel break — and perhaps even tour another city. When searching for flights from Istanbul to KGS leaving from Istanbul Ataturk Airport (IST), deselect the 'Direct flights only' box to see where you can visit along the way. Top options include:
- Thessaloniki International Airport (SKG)
- Leonardo da Vinci-Fiumicino Airport (FCO)
- Eleftherios Venizelos International Airport (ATH)
The distance from central Istanbul to IST is approximately 30 miles. Check out travel apps like Google Maps for the quickest route, whether you're driving or taking public transport.
Searching for a convenient hotel close to Istanbul Ataturk Airport? If you've booked an early flight from Istanbul to Kos Airport, these stays will put you moments from your departure lounge:

Sabiha Gokcen International Airport (SAW)

Visit friends or family or just take a moment to recharge with a stopover. If you'd like to break up your flight from Istanbul to Kos Airport, check out these options when setting off from Sabiha Gokcen International Airport:
- Eleftherios Venizelos International Airport (ATH)
- Vienna International Airport (VIE)
- Leonardo da Vinci-Fiumicino Airport (FCO)
With public transport, you can travel from central Istanbul to SAW in about 1 hour and 30 minutes. The airport is roughly 30 miles away, and getting there by car takes approximately 57 minutes.
Kick off your holiday early with an extra night away from home. Before your flight from Istanbul to KGS, unwind in one of these hotels near Sabiha Gokcen International Airport:

About Kos Airport (KGS)

If you have a late flight from Istanbul to Kos Airport, few things top the convenience of staying close to the terminal. Pick up your bags from the carousel and then be showered and sleeping not long after at one of these options near KGS:

Getting from Kos Airport (KGS) to central Greece

The centre of Greece is around 270 miles from Kos Airport. Travel times by car rental or cab will vary depending on time of day, so do a little research ahead of your trip.

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

£54 is the cheapest price we've found for a one-way ticket from Istanbul to Kos Airport. Return flights start from £118. Prices are subject to change based on availability and may vary at the time of booking.
To find cheap tickets from Istanbul to KGS, book as early as you can. Airlines typically offer the most competitive fares when flights are first released.
If you're flexible with your travel dates, make the most of the 'Whole month' tool. It'll show you the lowest price across every month when searching for your ticket from Istanbul to Kos Airport.
Set up a Price Alert for cheap tickets from Istanbul to KGS. There's no need to search every day to see whether prices have dropped. We'll tell you when there's a change in price.
Tailor your flights with filters. Choose your preferred departure and arrival times, airlines and total journey duration. You can also sort results by 'Cheapest,' 'Fastest' or 'Best' flights from Istanbul to Kos Airport.

The best time to fly from Istanbul to Kos Airport (KGS)

August is the busiest month for flights from Istanbul to Kos Airport. To steer clear of the crowds, head to Greece in February when it's quieter.
The warmest month in Greece is July, with temperatures ranging between 22ºC and 33ºC. Lock in your flights from Istanbul to KGS in this month if this is the type of weather you enjoy.
Search for cheap flights from Istanbul to Kos Airport in January if you like cooler conditions. Temperatures are at their lowest around then, ranging between 2ºC and 13ºC on average.

More about Greece

After booking your flight from Istanbul to Kos Airport, think about where to rest your head in this city. Make one of these accommodation options your base for exploring Greece:
Agios Panteleimonas and Κύμα - Kyma - The wave are just a couple of the popular attractions to put on your Greece must-do list. Keep the adventure rolling by checking out Τρείς μώλοι / Three piers beach.