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Cheap Flights from Kos to Athens

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Compare Kos to Athens International flight deals

Find the cheapest month or even day of the year to fly to Athens International

Book the best Athens International fare with no extra fees

Flight deals from Kos to Athens International

Looking for a cheap last-minute deal or the best return flight from Kos to Athens International? Find the lowest prices on one-way and return tickets right here.
Athens.$125 per passenger.Departing Thu, 22 May, returning Mon, 26 May.Return flight with Aegean Airlines.Outbound direct flight with Aegean Airlines departs from Kos on Thu, 22 May, arriving in Athens International.Inbound direct flight with Aegean Airlines departs from Athens International on Mon, 26 May, arriving in Kos.Price includes taxes and charges.From $125, select.
Athens.$135 per passenger.Departing Tue, 15 Apr, returning Sat, 3 May.Return flight with SKY express.Outbound direct flight with SKY express departs from Kos on Tue, 15 Apr, arriving in Athens International.Inbound direct flight with SKY express departs from Athens International on Sat, 3 May, arriving in Kos.Price includes taxes and charges.From $135, select.
Athens.$135 per passenger.Departing Mon, 4 Aug, returning Wed, 20 Aug.Return flight with SKY express.Outbound direct flight with SKY express departs from Kos on Mon, 4 Aug, arriving in Athens International.Inbound direct flight with SKY express departs from Athens International on Wed, 20 Aug, arriving in Kos.Price includes taxes and charges.From $135, select.
Athens.$135 per passenger.Departing Mon, 2 Jun, returning Mon, 2 Jun.Return flight with SKY express.Outbound direct flight with SKY express departs from Kos on Mon, 2 Jun, arriving in Athens International.Inbound direct flight with SKY express departs from Athens International on Mon, 2 Jun, arriving in Kos.Price includes taxes and charges.From $135, select.
Athens.$135 per passenger.Departing Mon, 10 Nov, returning Mon, 1 Dec.Return flight with SKY express.Outbound direct flight with SKY express departs from Kos on Mon, 10 Nov, arriving in Athens International.Inbound direct flight with SKY express departs from Athens International on Mon, 1 Dec, arriving in Kos.Price includes taxes and charges.From $135, select.
Athens.$135 per passenger.Departing Sat, 4 Oct, returning Sat, 4 Oct.Return flight with SKY express.Outbound direct flight with SKY express departs from Kos on Sat, 4 Oct, arriving in Athens International.Inbound direct flight with SKY express departs from Athens International on Sat, 4 Oct, arriving in Kos.Price includes taxes and charges.From $135, select.
Athens.$135 per passenger.Departing Mon, 12 May, returning Mon, 2 Jun.Return flight with SKY express.Outbound direct flight with SKY express departs from Kos on Mon, 12 May, arriving in Athens International.Inbound direct flight with SKY express departs from Athens International on Mon, 2 Jun, arriving in Kos.Price includes taxes and charges.From $135, select.
Athens.$135 per passenger.Departing Tue, 15 Apr, returning Sat, 26 Apr.Return flight with SKY express.Outbound direct flight with SKY express departs from Kos on Tue, 15 Apr, arriving in Athens International.Inbound direct flight with SKY express departs from Athens International on Sat, 26 Apr, arriving in Kos.Price includes taxes and charges.From $135, select.

Find the cheapest month to fly from Kos to Athens International

We’re always keeping an eye on fares, so you can find the best one in seconds. It looks like Kos to Athens International flights are currently cheapest in May.
Mar
Find prices
Apr
from $135
May
from $125
Jun
from $135
Jul
from $175
Aug
from $135
Sep
from $135
Oct
from $135
Nov
from $135
Dec
from $135
Jan
from $153
Feb
Find prices

Direct flights from Kos to Athens International

Kos to Athens International: Alternative routes

Compare routes from Kos to Athens below. You may find an airport to fly into that's cheaper, faster, or easier than Athens International.

Kos to Athens: Flight information

The things to know before you go.
Cheapest flight found$125
Cheapest month to flyMay
Average flight time1 hr, 3 mins
Most popular airlineSKY express
Average flights per week70

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

The best price we found for a return flight from Kos to Athens International is $125. 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.
1 hour and 3 minutes is the average flight time from Kos to Athens International.
SKY express, Aegean Airlines and Olympic Air fly direct from Kos to Athens International.
As of March 2025, there are 70 flights per week flying from Kos to Athens International.
The cheapest month to fly from Kos to Athens International is usually March 2025.
After crunching the numbers on our flight calendar, we found that it's currently cheapest to fly from Kos Airport to Athens International Airport on Thursday, 22 May 2025.
Yes – the average flight time is 1 hour and 3 minutes.
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 Athens International 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 Athens is around 40 days in advance, so don’t leave your flight to the last minute.
Currently, Aegean Airlines offers the cheapest flight tickets to Athens International.

Travelling from Kos Airport (KGS) to Eleftherios Venizelos International Airport (ATH): what you need to know

  • A direct flight from Kos Airport to Eleftherios Venizelos International Airport takes an average of 1 hour 1 minute. Athens's timezone is UTC+2 — identical to Greece.

  • Take your pick of 59 weekly flights from Kos Airport to Eleftherios Venizelos International Airport. The 04:45 departure with Aegean Airlines is the earliest you can take from KGS to ATH. Sky Express operates the latest service of the day at 23:55 if early mornings aren't your thing.

  • You'll likely experience longer lines during popular months like August and other peak seasons. Arriving up to four hours in advance for international flights and two hours for domestic departures is a smart move.

  • Sky Express is your gateway to discovering Athens (and maybe even some other exciting corners of Greece!). Choose from the direct flights from Kos Airport to Eleftherios Venizelos International Airport offered by this carrier.

  • If you want to break up your flight from Kos Airport to Eleftherios Venizelos International Airport, consider adding a stopover. Just deselect 'Direct flights only' to find a destination that appeals to you. Popular stopovers on the KGS - ATH route include:

    • Kalymnos Island National Airport

    • Thessaloniki International Airport

    • Rhodes Airport

  • You won't need your passport or a visa to travel within Greece. You will need a valid form of identification however, such as a driver's license or an ID card. Put them on your packing list once you've booked your cheap ticket from KGS to ATH.

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

  • The lowest price we've found for a one-way ticket from Kos Airport to Eleftherios Venizelos International Airport is $50. For a return flight on this route, the best price is $125. Depending on the availability when you book, these fares could change.

  • Book 10 months before travelling. After crunching the numbers on our calendar, this is how far you should book ahead to find cheap flight tickets from KGS to ATH.

  • June is the cheapest month for tickets from Kos Airport to Eleftherios Venizelos International Airport. If you need to fly during a different time of year, the 'Whole month' tool will give you the lowest prices for each month.

  • Set up a Price Alert for cheap flight tickets from KGS to ATH. You don't need to check back in every day to see whether airfares have fallen. We'll notify you the moment there's a change in price.

  • Use filters to tailor your flights from Kos Airport to Eleftherios Venizelos International Airport. Enter your ideal departure and arrival times, airlines and number of stops. Alternatively, sort your results by 'Cheapest' to find the best deals.

Handy information about Kos Airport (KGS)

  • Kos Airport is around 434 kilometres from the centre of Greece. To help work out how to get there, use Google Maps. This handy travel app will show you the fastest route and your public transport options.

  • Searching for a convenient hotel near KGS? If you've booked an early flight from Kos Airport to Eleftherios Venizelos International Airport, these stays will have you moments from check-in:

Arriving at Eleftherios Venizelos International Airport (ATH)

Getting from Eleftherios Venizelos International Airport (ATH) to central Athens

  • Eleftherios Venizelos International Airport is approximately 40 kilometres from the centre of Athens. With your own car rental or if you take a cab, the drive is about 37 minutes.

  • Travelling to the centre on public transport typically takes 59 minutes.

When to fly to Eleftherios Venizelos International Airport (ATH)

  • August is the most popular month for flights from Kos Airport to Eleftherios Venizelos International Airport. To skip the crowds, head to Athens in February.

  • The warmest month in Athens is July, with the temperature ranging between 22ºC and 37ºC. Lock in your flights from Kos Airport to Eleftherios Venizelos International Airport in this month if you enjoy this type of weather.

  • Search for cheap flight tickets from KGS to ATH in January if you want to travel in cooler conditions. Temperatures are at their lowest then, ranging between 4ºC and 14ºC on average.

More about Athens

  • As soon as you've booked your flights from KGS to ATH, you'll want to find a place to stay in Athens. Make one of these accommodation options your base for exploring this exciting city:

  • There are so many things to do and see in this city it can be difficult to know where to start. Museum of the Centre for the Acropolis Studies, Acropolis of Athens and The Parthenon are top sights which should feature on every Athens itinerary.

Complete your Athens trip with hotels and a car rental

  • Once you've secured your cheap ticket to Eleftherios Venizelos International Airport, discover the lowest prices and exclusive rates for hotels. You can also compare a range of car rental companies in one place to find the best car rental price for your Athens getaway.

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Plan the rest of your trip from Kos to Athens

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