Cheap Flights from Athens (ATH) to Kos (KGS) from HK$404~

View HK$404 flight on Fri, 22 Aug 2025Opens in a new window

Popular airlines from Athens Intl. Airport (ATH) to Kos (KGS-Kos Island Intl.)

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

Prices were available within the past 7 days and start at HK$404 for one-way flights and HK$1,427 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

SKY express
Mon, 1 Sep - Sat, 6 Sep
ATH
Athens
KGS
Kos
HK$1,427 Return, found 4 days ago
HK$1,427
Return
found 4 days ago
Select SKY express flight, departing Mon, 1 Sep from Athens to Kos, returning Sat, 6 Sep, priced at HK$1,427 found 4 days ago
SKY express
Mon, 1 Sep - Sat, 6 Sep
ATH
Athens
KGS
Kos
HK$1,519 Return, found 4 days ago
HK$1,519
Return
found 4 days ago
Select SKY express flight, departing Mon, 1 Sep from Athens to Kos, returning Sat, 6 Sep, priced at HK$1,519 found 4 days ago
SKY express
Mon, 1 Sep - Sat, 6 Sep
ATH
Athens
KGS
Kos
HK$1,619 Return, found 4 days ago
HK$1,619
Return
found 4 days ago
Select SKY express flight, departing Mon, 1 Sep from Athens to Kos, returning Sat, 6 Sep, priced at HK$1,619 found 4 days ago
SKY express
Fri, 22 Aug - Sat, 30 Aug
ATH
Athens
KGS
Kos
HK$1,620 Return, found 4 days ago
HK$1,620
Return
found 4 days ago
Select SKY express flight, departing Fri, 22 Aug from Athens to Kos, returning Sat, 30 Aug, priced at HK$1,620 found 4 days ago
SKY express
Mon, 1 Sep - Sat, 6 Sep
ATH
Athens
KGS
Kos
HK$1,628 Return, found 4 days ago
HK$1,628
Return
found 4 days ago
Select SKY express flight, departing Mon, 1 Sep from Athens to Kos, returning Sat, 6 Sep, priced at HK$1,628 found 4 days ago
SKY express
Mon, 1 Sep - Sat, 6 Sep
ATH
Athens
KGS
Kos
HK$1,674 Return, found 4 days ago
HK$1,674
Return
found 4 days ago
Select SKY express flight, departing Mon, 1 Sep from Athens to Kos, returning Sat, 6 Sep, priced at HK$1,674 found 4 days ago
SKY express
Mon, 1 Sep - Sat, 6 Sep
ATH
Athens
KGS
Kos
HK$1,711 Return, found 4 days ago
HK$1,711
Return
found 4 days ago
Select SKY express flight, departing Mon, 1 Sep from Athens to Kos, returning Sat, 6 Sep, priced at HK$1,711 found 4 days ago
SKY express
Mon, 1 Sep - Sat, 6 Sep
ATH
Athens
KGS
Kos
HK$1,766 Return, found 4 days ago
HK$1,766
Return
found 4 days ago
Select SKY express flight, departing Mon, 1 Sep from Athens to Kos, returning Sat, 6 Sep, priced at HK$1,766 found 4 days ago
SKY express
Mon, 1 Sep - Sat, 6 Sep
ATH
Athens
KGS
Kos
HK$1,820 Return, found 4 days ago
HK$1,820
Return
found 4 days ago
Select SKY express flight, departing Mon, 1 Sep from Athens to Kos, returning Sat, 6 Sep, priced at HK$1,820 found 4 days ago
Aegean
Mon, 1 Sep - Sat, 6 Sep
ATH
Athens
KGS
Kos
HK$1,943 Return, found 4 days ago
HK$1,943
Return
found 4 days ago
Select Aegean flight, departing Mon, 1 Sep from Athens to Kos, returning Sat, 6 Sep, priced at HK$1,943 found 4 days ago

Find the cheapest month to fly from Athens (ATH) to Kos (KGS)

January is typically the cheapest month to fly

From HK$590 - HK$1,438 per traveller.

Graph displaying average flight prices per month

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Athens to Kos route information
Origin airport
Eleftherios Venizelos
Destination airport
Kos Island Intl.
Return price
HK$1,427
Distance
303 km

Flights from Athens to Kos

Book cheap flights from Athens (ATH) to Kos (KGS) on Expedia.com.hk. Find the best flight deals to destinations around the world for your next leisure or business travel on Expedia.com.hk.

Search for flights from Athens (ATH) to Kos (KGS) to find great flight deals suitable to your travel date and time. Expedia.com.hk flight booking search engine is simple to use and looking for cheap flights is as easy as a click of a mouse or on your mobile devices.

Be assured that you’re seeing the best price guaranteed! Our friendly customer service representatives are here to serve you 24 hours day to provide assistance and answer any questions that you may have about booking your Athens (ATH) to Kos (KGS) trip. Call us at 3077-4857 (direct number - 24 hours day for English).

Save more when combine your Kos flight with a hotel for a package deal! Discover additional savings by booking in advance. Now you can find activities in Kos and things to do in Kos for your perfect vacation with Expedia Thing to Do.

If you would like to book flights to Kos more flexibly, many prefer to purchase one-way tickets with options to take different airlines. A one way ticket to Kos is HK$404 now!

 

Frequently asked questions

How much is a flight from Athens International Airport to Kos Airport?
Within the past 7 days on Expedia, for flights departing within the next year, the lowest price quoted for a round-trip flight from Eleftherios Venizelos Airport (ATH) to KGS was HK$1,427. Cheap fares don't wait forever, so make sure you book yours today. Prices and availability are subject to change. Additional terms apply.
Do I need to pay a cancellation fee if I cancel my flight from ATH to KGS?
The majority of flights can be conveniently canceled online, but whether or not you are charged a fee depends on your airline. If you do have to cancel your break, follow the instructions in the Customer Service Portal.
How do I find cheap flights from ATH to Kos Island Intl. Airport (KGS) that have flexible change policies?
Many airlines offer the option to reschedule your flight without a change fee. All you pay is the difference between the original flight and the new flight. When you're searching for Athens International Airport to KGS flights, you'll see a "no change fees" filter for you to select.
How far is the flight from Eleftherios Venizelos Airport (ATH) to Kos Island Intl. Airport (KGS)?
The flight distance from Athens International Airport (ATH) to Kos Airport (KGS) is only 310 kilometers. You'll be stepping off the plane and grabbing your baggage from the carousel before long.
Which airlines fly direct from ATH to Kos Airport?
A leading airline that flies from Athens International Airport to KGS is Sky Express (GQ). It offers 73 flights a month. You could also check out the fares on offer with Aegean Airlines (A3). It operates 69 monthly flights between Spata-Artemida and Kos.
Are Eleftherios Venizelos Airport (ATH) to Kos Airport flight tickets cheaper when they're purchased at the last minute?
Last-minute planners can sometimes nab a bargain, with some of the cheapest fares from Athens International Airport to KGS surfacing a few weeks prior to the departure date. If you'd rather plan ahead, Expedia compares and updates all the best flight deals continuously — as early as 12 months in advance in some cases. It depends on the carrier though, as not all airlines advertise prices so far in advance.

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