$40 Cheap Flights from Athens (ATH) to Kos (KGS)

View $40 flight on Wed, Dec 17, 2025Opens in a new window

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

Cheap Flights from Athens to Kos (ATH-KGS)

Prices were available within the past 7 days and start at $40 for one-way flights and $87 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

SKY express
Tue, Nov 4 - Mon, Nov 17
ATH
Athens
KGS
Kos
$87 Roundtrip, found 2 days ago
$87
Roundtrip
found 2 days ago
Select SKY express flight, departing Tue, Nov 4 from Athens to Kos, returning Mon, Nov 17, priced at $87 found 2 days ago
Aegean
Wed, Nov 19 - Wed, Dec 3
ATH
Athens
KGS
Kos
$87 Roundtrip, found 1 day ago
$87
Roundtrip
found 1 day ago
Select Aegean flight, departing Wed, Nov 19 from Athens to Kos, returning Wed, Dec 3, priced at $87 found 1 day ago
SKY express
Thu, Oct 30 - Mon, Nov 3
ATH
Athens
KGS
Kos
$89 Roundtrip, found 6 days ago
$89
Roundtrip
found 6 days ago
Select SKY express flight, departing Thu, Oct 30 from Athens to Kos, returning Mon, Nov 3, priced at $89 found 6 days ago
Aegean
Thu, Nov 6 - Sun, Nov 9
ATH
Athens
KGS
Kos
$89 Roundtrip, found 4 days ago
$89
Roundtrip
found 4 days ago
Select Aegean flight, departing Thu, Nov 6 from Athens to Kos, returning Sun, Nov 9, priced at $89 found 4 days ago
SKY express
Tue, Nov 4 - Mon, Nov 17
ATH
Athens
KGS
Kos
$92 Roundtrip, found 2 days ago
$92
Roundtrip
found 2 days ago
Select SKY express flight, departing Tue, Nov 4 from Athens to Kos, returning Mon, Nov 17, priced at $92 found 2 days ago
Aegean
Wed, Nov 19 - Wed, Dec 3
ATH
Athens
KGS
Kos
$95 Roundtrip, found 1 day ago
$95
Roundtrip
found 1 day ago
Select Aegean flight, departing Wed, Nov 19 from Athens to Kos, returning Wed, Dec 3, priced at $95 found 1 day ago
Aegean
Thu, Nov 6 - Sun, Nov 9
ATH
Athens
KGS
Kos
$97 Roundtrip, found 4 days ago
$97
Roundtrip
found 4 days ago
Select Aegean flight, departing Thu, Nov 6 from Athens to Kos, returning Sun, Nov 9, priced at $97 found 4 days ago
SKY express
Tue, Nov 4 - Mon, Nov 17
ATH
Athens
KGS
Kos
$98 Roundtrip, found 2 days ago
$98
Roundtrip
found 2 days ago
Select SKY express flight, departing Tue, Nov 4 from Athens to Kos, returning Mon, Nov 17, priced at $98 found 2 days ago
SKY express
Thu, Nov 6 - Fri, Nov 21
ATH
Athens
KGS
Kos
$99 Roundtrip, found 16 hours ago
$99
Roundtrip
found 16 hours ago
Select SKY express flight, departing Thu, Nov 6 from Athens to Kos, returning Fri, Nov 21, priced at $99 found 16 hours ago
Aegean
Sat, Nov 22 - Mon, Nov 24
ATH
Athens
KGS
Kos
$100 Roundtrip, found 14 hours ago
$100
Roundtrip
found 14 hours ago
Select Aegean flight, departing Sat, Nov 22 from Athens to Kos, returning Mon, Nov 24, priced at $100 found 14 hours ago

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

January is typically the cheapest month to fly

From $75 - $183 per traveler.

Frequently asked questions

How much does a flight from Eleftherios Venizelos Airport (ATH) to Kos Island Intl. Airport (KGS) cost?
Get a cheap one-way flight from $40 or cheap return flight from $87 from Eleftherios Venizelos Airport (ATH) to Kos Island Intl. Airport (KGS) with Expedia. Enter your travel dates and sort by "Price (lowest to highest)" to find our cheapest flight deals on this route.
What is the cheapest month to fly from Eleftherios Venizelos Airport (ATH) to Kos Island Intl. Airport (KGS)?
Planning your getaway for November is a great way to save, as it's the cheapest month for flights between ATH and KGS. You'll usually find the lowest fares during off-peak months.
Which airlines fly direct from Eleftherios Venizelos Airport (ATH) to Kos Island Intl. Airport (KGS)?
Jump on a direct flight with Aegean Airlines and journey straight from Eleftherios Venizelos Airport (ATH) to Kos Island Intl. Airport (KGS).
What is the cheapest airline that flies from Eleftherios Venizelos Airport (ATH) to Kos Island Intl. Airport (KGS)?
Sky Express and Aegean Airlines are some well-known airlines offering reasonable fares. Remember that flight prices from Eleftherios Venizelos Airport (ATH) to Kos Island Intl. Airport (KGS) can vary depending on demand, travel dates and how early you book. With Expedia's search tool, you can easily find an ATH to KGS flight that suits your plans and budget.
How many flights per day from Eleftherios Venizelos Airport (ATH) to Kos Island Intl. Airport (KGS)?
With, on average, 5 nonstop flights that operate from Eleftherios Venizelos Airport (ATH) to Kos Island Intl. Airport (KGS) daily, you'll be off on your next adventure in no time.
What are the most popular departure times for flights from Eleftherios Venizelos Airport (ATH) to Kos Island Intl. Airport (KGS)?
More people fly between ATH and KGS at 11 AM than at any other time of day. Rather go when it's quieter? Travel outside of rush hours and it's possible you'll save on your ticket as well.
What day of the week has the most flights from ATH to KGS?
If you fly on a Friday, you'll get the greatest range of options for flights from Eleftherios Venizelos Airport (ATH) to Kos Island Intl. Airport (KGS).
What is the earliest flight from Eleftherios Venizelos Airport (ATH) to Kos Island Intl. Airport (KGS)?
The earliest flight leaving Eleftherios Venizelos Airport (ATH) is at around 7:00AM UTC+2. Board this flight and you'll touch down at Kos Island Intl. Airport (KGS) at approximately 8:05AM UTC+2. The overall travel time is 1h 5m.
How long does it take to fly from Eleftherios Venizelos Airport (ATH) to Kos Island Intl. Airport (KGS)?
The average flight duration from ATH to KGS is 1 hour and 2 minutes, covering a distance of 190 mi.
What is the best time to fly from Eleftherios Venizelos Airport (ATH) to Kos Island Intl. Airport (KGS)?
To arrive at Kos Island Intl. Airport (KGS) on time, pick a flight that leaves from Eleftherios Venizelos Airport (ATH) before 3 PM. The likelihood of cancellations is 22% higher, on average, for departures after this time.**Most reliable time of the day and month to travel recommendation is based on January through August 2024 flight status data sourced from OAG's global flight data platform.
What airports do you fly into for Kos from Eleftherios Venizelos Airport (ATH)?
A direct flight from Eleftherios Venizelos Airport (ATH) will take you straight to one of these airports in Kos:

  • Kos Island Intl. Airport (KGS)
  • Diagoras Airport (RHO)
  • Samos Intl. Airport (SMI)
  • Leros Island Airport (LRS)
  • Astypalaia Island National Airport (JTY)

Is it cheaper to buy a plane ticket from Eleftherios Venizelos Airport (ATH) to Kos Island Intl. Airport (KGS) last-minute?
Booking your flight from ATH to KGS shortly before your getaway is typically more expensive. However, if you're flexible with your travel dates and times, you could snag a cheap last-minute fare.
Is it cheaper to book an ATH to KGS flight and hotel package?
You can save money by booking an ATH to KGS flight and hotel package compared to booking separately. In fact, you could save hundreds of dollars by bundling with Expedia. And it's easy to manage it all in one convenient place. Once you've selected your ideal flights and accommodations, consider other add-ons like car rentals, tours and activities.
Can I cancel or change the date of my flight from Eleftherios Venizelos Airport (ATH) to Kos Island Intl. Airport (KGS)?
Typically, it's possible to cancel or reschedule your ATH to KGS flight. However, if the booking was made more than 24 hours ago, additional fees may apply. Check your airline's policies in your itinerary to see what changes are allowed and if any costs are involved. You'll also find more details on our Customer Service portal.

Travel information

Travel information

0
Origin airport
Eleftherios Venizelos
Destination airport
Kos Island Intl.
Airlines serving
Aegean, SKY express
Roundtrip price
$86
Distance
189 mi

Book with confidence

Book with confidence

Athens to Kos Flights

The cheapest times to fly from Athens to Kos

On average, Thursday can be the cheapest time to fly, according to data from the Airlines Reporting Corporation (ARC), one of the world's biggest databases for global airline sales. The data reveals that you could save up to 16% by flying on a Thursday—the cheapest day to travel on average—instead of a Sunday—the most expensive. Some of the most affordable flights from Athens to Kos are during the month of November. You can find some of the cheapest flights from Athens to Kos with Expedia's search tool and vast selection of airlines.

 

The best time to book a flight from Athens to Kos

Sunday is one of the best days to book for cheap flights from Athens to Kos: Tickets reserved on a Sunday cost between 6% and 13% less than those reserved on a Friday, according to ARC data. The data also suggests booking early can also lead to cheaper airfares. You could save 24% by buying your tickets for domestic flights at least a month in advance and 10% by booking international flights 2 months in advance.

 

How to find cheap round-trip tickets from Athens to Kos

Being flexible with your dates and using Expedia's Price Drop Protection and Price Tracking features are some of the best ways of finding a cheap ticket from Athens to Kos in 2025. You can also book with separate airlines for your outbound and return journeys, from $40 one-way. Expedia also offers Price Drop Protection, so if the cost of your airfare goes down after booking, you'll receive a credit for the difference*. This is available for a small fee, and is free to One Key Gold and Platinum tier members.

 

Expedia's Price Tracking feature means you can stay on top of airfares without manually checking every day. It sends you automated price alerts for cheap Athens to Kos flights and uses historical data to indicate when the best time to book is. Download Expedia's free app to activate this handy tool in a few easy taps.

 

You could also save big by booking one of Expedia's vacation packages. Bundling together your Athens to Kos airfare with your accommodations and car rental is often cheaper than booking everything separately. There’s also One Key, Expedia's generous rewards program. Join for free and you could earn One Key cash on most bookings to save on future adventures.

 

*Terms apply.

 

Disclaimer: ARC The statistics are based on average round-trip ticket prices between January and August 2023. The percentages you see are averages.

 

Athens to Kos Flights

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