Cheap Flights from Athens (ATH) to Kos (KGS)

Compare Athens International to Kos flight deals

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

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Flight deals from Athens International to Kos

Looking for a cheap last-minute deal or the best return flight from Athens International Airport to Kos Airport? If you want to travel next month, return fares start from $213. Find the lowest prices on one-way and return tickets right here.

Kos.$129 per passenger.Departing Wed, 28 Oct, returning Wed, 18 Nov.Return flight with SKY express.Outbound direct flight with SKY express departs from Athens International on Wed, 28 Oct, arriving in Kos.Inbound direct flight with SKY express departs from Kos on Wed, 18 Nov, arriving in Athens International.Price includes taxes and charges.From $129, select.

Kos.$129 per passenger.Departing Sat, 16 Jan, returning Wed, 3 Feb.Return flight with SKY express.Outbound direct flight with SKY express departs from Athens International on Sat, 16 Jan, arriving in Kos.Inbound direct flight with SKY express departs from Kos on Wed, 3 Feb, arriving in Athens International.Price includes taxes and charges.From $129, select.

Kos.$129 per passenger.Departing Sat, 27 Mar, returning Wed, 14 Apr.Return flight with SKY express.Outbound direct flight with SKY express departs from Athens International on Sat, 27 Mar, arriving in Kos.Inbound direct flight with SKY express departs from Kos on Wed, 14 Apr, arriving in Athens International.Price includes taxes and charges.From $129, select.

Kos.$129 per passenger.Departing Tue, 6 Oct, returning Sat, 10 Oct.Return flight with SKY express.Outbound direct flight with SKY express departs from Athens International on Tue, 6 Oct, arriving in Kos.Inbound direct flight with SKY express departs from Kos on Sat, 10 Oct, arriving in Athens International.Price includes taxes and charges.From $129, select.

Kos.$129 per passenger.Departing Wed, 17 Feb, returning Sun, 7 Mar.Return flight with SKY express.Outbound direct flight with SKY express departs from Athens International on Wed, 17 Feb, arriving in Kos.Inbound direct flight with SKY express departs from Kos on Sun, 7 Mar, arriving in Athens International.Price includes taxes and charges.From $129, select.

Kos.$129 per passenger.Departing Tue, 3 Nov, returning Wed, 18 Nov.Return flight with SKY express.Outbound direct flight with SKY express departs from Athens International on Tue, 3 Nov, arriving in Kos.Inbound direct flight with SKY express departs from Kos on Wed, 18 Nov, arriving in Athens International.Price includes taxes and charges.From $129, select.

Kos.$129 per passenger.Departing Tue, 1 Dec, returning Wed, 2 Dec.Return flight with SKY express.Outbound direct flight with SKY express departs from Athens International on Tue, 1 Dec, arriving in Kos.Inbound direct flight with SKY express departs from Kos on Wed, 2 Dec, arriving in Athens International.Price includes taxes and charges.From $129, select.

Kos.$129 per passenger.Departing Sat, 6 Mar, returning Sun, 7 Mar.Return flight with SKY express.Outbound direct flight with SKY express departs from Athens International on Sat, 6 Mar, arriving in Kos.Inbound direct flight with SKY express departs from Kos on Sun, 7 Mar, arriving in Athens International.Price includes taxes and charges.From $129, select.

Kos.$129 per passenger.Departing Wed, 11 Nov, returning Wed, 2 Dec.Return flight with SKY express.Outbound direct flight with SKY express departs from Athens International on Wed, 11 Nov, arriving in Kos.Inbound direct flight with SKY express departs from Kos on Wed, 2 Dec, arriving in Athens International.Price includes taxes and charges.From $129, select.

Kos.$129 per passenger.Departing Wed, 10 Feb, returning Sun, 14 Feb.Return flight with SKY express.Outbound direct flight with SKY express departs from Athens International on Wed, 10 Feb, arriving in Kos.Inbound direct flight with SKY express departs from Kos on Sun, 14 Feb, arriving in Athens International.Price includes taxes and charges.From $129, select.

Kos.$129 per passenger.Departing Sat, 16 Jan, returning Sun, 17 Jan.Return flight with SKY express.Outbound direct flight with SKY express departs from Athens International on Sat, 16 Jan, arriving in Kos.Inbound direct flight with SKY express departs from Kos on Sun, 17 Jan, arriving in Athens International.Price includes taxes and charges.From $129, select.

Kos.$144 per passenger.Departing Sun, 13 Sep, returning Sat, 3 Oct.Return flight with SKY express.Outbound direct flight with SKY express departs from Athens International on Sun, 13 Sep, arriving in Kos.Inbound direct flight with SKY express departs from Kos on Sat, 3 Oct, arriving in Athens International.Price includes taxes and charges.From $144, select.

Kos.$144 per passenger.Departing Tue, 8 Sep, returning Sat, 26 Sep.Return flight with SKY express.Outbound direct flight with SKY express departs from Athens International on Tue, 8 Sep, arriving in Kos.Inbound direct flight with SKY express departs from Kos on Sat, 26 Sep, arriving in Athens International.Price includes taxes and charges.From $144, select.

Kos.$149 per passenger.Departing Sun, 22 Nov, returning Fri, 12 Mar.Return flight with Aegean Airlines.Outbound direct flight with Aegean Airlines departs from Athens International on Sun, 22 Nov, arriving in Kos.Inbound direct flight with Aegean Airlines departs from Kos on Fri, 12 Mar, arriving in Athens International.Price includes taxes and charges.From $149, select.

Kos.$166 per passenger.Departing Thu, 17 Dec, returning Sat, 9 Jan.Return flight with Aegean Airlines.Outbound direct flight with Aegean Airlines departs from Athens International on Thu, 17 Dec, arriving in Kos.Inbound direct flight with Aegean Airlines departs from Kos on Sat, 9 Jan, arriving in Athens International.Price includes taxes and charges.From $166, select.

Kos.$172 per passenger.Departing Tue, 1 Jun, returning Wed, 30 Jun.Return flight with SKY express.Outbound direct flight with SKY express departs from Athens International on Tue, 1 Jun, arriving in Kos.Inbound direct flight with SKY express departs from Kos on Wed, 30 Jun, arriving in Athens International.Price includes taxes and charges.From $172, select.

Find the cheapest month to fly from Athens International to Kos

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

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Direct flights from Athens International to Kos

Athens to Kos: Flight information

The things to know before you go.

Cheapest flight found	$129
Cheapest month to fly	October
Average flight time	1 hr, 1 min
Most popular airline	SKY express
Average flights per week	127

Finding cheap flights from Athens International to Kos: Frequently asked questions

How much are return flights from Athens International to Kos?

The best price we found for a return flight from Athens International to Kos is $129. 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.

How long does it take to fly from Athens International to Kos?

1 hour and 1 minute is the average flight time from Athens International to Kos.

Which airlines fly direct from Athens International to Kos?

SKY express, Aegean Airlines and Olympic Air fly direct from Athens International to Kos.

How many flights are there a week from Athens International to Kos?

As of July 2026, there are 127 flights per week flying from Athens International to Kos.

When is the cheapest time to fly from Athens International to Kos?

The cheapest month to fly from Athens International to Kos is usually October.

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

After crunching the numbers on our flight calendar, we found that it's currently cheapest to fly from Athens International Airport to Kos Airport on Wednesday, 28 October 2026.

Can I get a direct flight from Athens International Airport to Kos Airport?

Yes – the average flight time is 1 hour and 1 minute.

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 Athens International Airport to Kos with?

Currently, SKY express offers the cheapest flight tickets to Kos.

Flying from Athens International Airport (ATH) to Kos Airport (KGS): what you need to know

Hop on a direct flight from Athens International Airport to Kos Airport and you'll be in the air for an average of 1 hour.
Kos's timezone is UTC+2, which is the same as Athens.
Choose from 46 weekly Athens International Airport to Kos Airport flights. The 07:00 departure with Aegean Airlines is the earliest flight available. Aegean Airlines operates the latest service of the day at 22:55.
Leave plenty of time to make your ATH to KGS flight. A good rule of thumb is to arrive two hours before international departures and an hour ahead for domestic flights.
During popular months such as August, it's a good idea to get to the airport earlier than usual. Plan to arrive two hours before a domestic departure and four hours ahead of international flights whenever you're flying during a high season in general.
Aegean Airlines is your gateway to exploring Kos (and perhaps some other exciting corners of Greece!). Browse the direct flights from Athens International Airport to Kos Airport offered by this popular airline.
The airline with the highest number of bookings on this route is Aegean Airlines.
Aegean Airlines is the most punctual carrier operating ATH to KGS flights. An impressive 82.83% of its departures on this route arrive on time.
We make it easy to book a flight with a stopover. To see your options for tickets from Athens International Airport to Kos Airport, deselect 'Direct flights only.' Then, choose a flight with a stop long enough to tour your chosen city. Some great stopovers between ATH and KGS include:
- Rome Fiumicino Airport
- Crete Heraklion Airport
- Thessaloniki Airport

How to find the cheapest flights from Athens International Airport (ATH) to Kos Airport (KGS)

The lowest price we've seen for a one-way Athens International Airport to Kos Airport flight is $71. A return plane ticket right now is $129. Depending on the availability and when you book, these fares could change.
Book five months before flying. After looking at the numbers on our calendar, this is how far you'll want to book ahead to secure cheap tickets from ATH to KGS.
The cheapest month for flights from Athens International Airport to Kos Airport is October. Use the 'Whole month' tool to see the lowest prices if you have a flexible travel schedule.
Landing cheap flights from ATH to KGS is a cinch with Price Alerts. All you need to do is set up one of these automatic alerts and we'll notify you when a lower fare pops up.
Find the right flight for you with the help of the filters. To see the 'Best,' 'Fastest' or 'Cheapest' flights from Athens International Airport to Kos Airport, use the 'Sort by' function. You can also filter results by departure and arrival times, airline, and journey duration.

Handy information about Athens International Airport (ATH)

76% of flights departing from Athens International Airport touch down at their destination on time.
Athens International Airport is about 32 kilometres from central Athens. If you're ride-sharing, catching a taxi or driving from the centre, it'll take 35 minutes or so to arrive, depending on the traffic.
You can expect a trip time of around 40 minutes on public transport.
Have an early flight from Athens International Airport to Kos Airport? Avoid the hassle of rushing to the terminal (and sneak in some extra precious sleep) by picking one of these hotels close to ATH:

Arriving at Kos Airport (KGS)

If you're getting in on a late Athens International Airport to Kos Airport flight, nothing tops the convenience of being near the terminal. Collect your bags from the carousel and then be resting soon after at one of these options near KGS:
Get your adventure underway by picking up a Kos Airport rental car. Grab a set of wheels from Abbycar, Green Motion or Caldera to explore Kos and beyond.
Lock in the lowest price by reserving your vehicle from Kos Airport about three weeks before your trip.

When to fly to Kos Airport (KGS)

The quietest month for a flight from Athens International Airport to Kos Airport is March, while July is the most popular. Pick the ideal time to go to Kos based on whether you prefer a more relaxed vibe or a faster pace.

Explore more of Greece

Kos has its own special appeal, but there are so many other corners of Greece waiting to be explored. About 121 kilometres south-east of Kos, a visit to Athens will keep you busy. Start with popular sights like Acropolis of Athens, The Parthenon and Erechtheion.