$37 Cheap Flights from Kos (KGS) to Athens (ATH)

View $37 flight on Thu, Jan 22, 2026Opens in a new window

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

Cheap Flights from Kos to Athens (KGS-ATH)

Prices were available within the past 7 days and start at $37 for one-way flights and $77 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Aegean
Mon, Dec 8 - Wed, Dec 17
KGS
Kos
ATH
Athens
$77 Roundtrip, found 3 days ago
$77
Roundtrip
found 3 days ago
Select Aegean flight, departing Mon, Dec 8 from Kos to Athens, returning Wed, Dec 17, priced at $77 found 3 days ago
Aegean
Mon, Dec 8 - Thu, Dec 18
KGS
Kos
ATH
Athens
$78 Roundtrip, found 3 days ago
$78
Roundtrip
found 3 days ago
Select Aegean flight, departing Mon, Dec 8 from Kos to Athens, returning Thu, Dec 18, priced at $78 found 3 days ago
SKY express
Sun, Oct 26 - Sun, Nov 2
KGS
Kos
ATH
Athens
$79 Roundtrip, found 3 days ago
$79
Roundtrip
found 3 days ago
Select SKY express flight, departing Sun, Oct 26 from Kos to Athens, returning Sun, Nov 2, priced at $79 found 3 days ago
SKY express
Fri, Nov 7 - Mon, Nov 10
KGS
Kos
ATH
Athens
$82 Roundtrip, found 9 hours ago
$82
Roundtrip
found 9 hours ago
Select SKY express flight, departing Fri, Nov 7 from Kos to Athens, returning Mon, Nov 10, priced at $82 found 9 hours ago
SKY express
Wed, Dec 10 - Fri, Dec 19
KGS
Kos
ATH
Athens
$85 Roundtrip, found 3 days ago
$85
Roundtrip
found 3 days ago
Select SKY express flight, departing Wed, Dec 10 from Kos to Athens, returning Fri, Dec 19, priced at $85 found 3 days ago
Aegean
Mon, Dec 8 - Wed, Dec 17
KGS
Kos
ATH
Athens
$86 Roundtrip, found 3 days ago
$86
Roundtrip
found 3 days ago
Select Aegean flight, departing Mon, Dec 8 from Kos to Athens, returning Wed, Dec 17, priced at $86 found 3 days ago
SKY express
Tue, Nov 4 - Mon, Nov 10
KGS
Kos
ATH
Athens
$87 Roundtrip, found 3 days ago
$87
Roundtrip
found 3 days ago
Select SKY express flight, departing Tue, Nov 4 from Kos to Athens, returning Mon, Nov 10, priced at $87 found 3 days ago
Aegean
Wed, Dec 10 - Fri, Dec 19
KGS
Kos
ATH
Athens
$89 Roundtrip, found 3 days ago
$89
Roundtrip
found 3 days ago
Select Aegean flight, departing Wed, Dec 10 from Kos to Athens, returning Fri, Dec 19, priced at $89 found 3 days ago
Aegean
Wed, Dec 10 - Fri, Dec 19
KGS
Kos
ATH
Athens
$92 Roundtrip, found 3 days ago
$92
Roundtrip
found 3 days ago
Select Aegean flight, departing Wed, Dec 10 from Kos to Athens, returning Fri, Dec 19, priced at $92 found 3 days ago
SKY express
Wed, Dec 10 - Fri, Dec 19
KGS
Kos
ATH
Athens
$92 Roundtrip, found 3 days ago
$92
Roundtrip
found 3 days ago
Select SKY express flight, departing Wed, Dec 10 from Kos to Athens, returning Fri, Dec 19, priced at $92 found 3 days ago

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

January is typically the cheapest month to fly

From $75 - $176 per traveler.
0
Flights from Kos (KGS) to Athens (ATH)
Origin airport
Kos Island Intl.
Destination airport
Eleftherios Venizelos
Airlines serving
Aegean, SKY express
Roundtrip price
$77
Distance
189 mi

Kos to Athens Flights

The cheapest times to fly from Kos to Athens

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 Kos to Athens are during the month of December. You can find some of the cheapest flights from Kos to Athens with Expedia's search tool and vast selection of airlines.

 

The best time to book a flight from Kos to Athens

Sunday is one of the best days to book for cheap flights from Kos to Athens: 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 Kos to Athens

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 Kos to Athens in 2025. You can also book with separate airlines for your outbound and return journeys, from $37 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 Kos to Athens 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 Kos to Athens 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.

 

Frequently asked questions

How much does a flight from Kos Island Intl. Airport (KGS) to Eleftherios Venizelos Airport (ATH) cost?
Get a cheap one-way flight from $37 or cheap return flight from $77 from Kos Island Intl. Airport (KGS) to Eleftherios Venizelos Airport (ATH) 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 Kos Island Intl. Airport (KGS) to Eleftherios Venizelos Airport (ATH)?
December is the cheapest month to fly from KGS to ATH. Traveling outside of peak seasons is often the key to finding better fares.
Which airlines fly direct from Kos Island Intl. Airport (KGS) to Eleftherios Venizelos Airport (ATH)?
Catch a direct flight with Aegean Airlines and journey straight from Kos Island Intl. Airport (KGS) to Eleftherios Venizelos Airport (ATH).
What is the cheapest airline that flies from Kos Island Intl. Airport (KGS) to Eleftherios Venizelos Airport (ATH)?
While prices can change depending on your travel dates, Sky Express and Aegean Airlines are popular choices for flights between Kos Island Intl. Airport (KGS) and Eleftherios Venizelos Airport (ATH). You can also compare airlines on Expedia and use the "Sort by" filter to find the lowest-priced ticket for your KGS to ATH flight.
How many flights per day from Kos Island Intl. Airport (KGS) to Eleftherios Venizelos Airport (ATH)?
With an average of 5 nonstop flights that operate from Kos Island Intl. Airport (KGS) to Eleftherios Venizelos Airport (ATH) each day, you'll be cruising above the clouds before you know it.
What are the most popular departure times for flights from Kos Island Intl. Airport (KGS) to Eleftherios Venizelos Airport (ATH)?
The 12 PM departures from KGS to ATH see the highest demand. They can also be more expensive. If you're hoping to save money, book during off-peak hours.
What day of the week has the most flights from KGS to ATH?
Friday offers the most flights from Kos Island Intl. Airport (KGS) to Eleftherios Venizelos Airport (ATH). Consider traveling on this day and you'll have a greater chance of finding a departure that fits your plans.
What is the earliest flight from Kos Island Intl. Airport (KGS) to Eleftherios Venizelos Airport (ATH)?
Take the earliest flight at around 8:35AM UTC+2, departing from Kos Island Intl. Airport (KGS). You'll be in the air for approximately 1h 5m, coming in to land at Eleftherios Venizelos Airport (ATH) at approximately 9:40AM UTC+2.
How long does it take to fly from Kos Island Intl. Airport (KGS) to Eleftherios Venizelos Airport (ATH)?
Flights from KGS to ATH have an average travel time of 1 hour and 2 minutes. The distance between the two airports is 190 mi.
What is the best time to fly from Kos Island Intl. Airport (KGS) to Eleftherios Venizelos Airport (ATH)?
To avoid potential delays on the Kos Island Intl. Airport (KGS) to Eleftherios Venizelos Airport (ATH) route, aim to travel before 3 PM. Departures after this time have a 22% higher chance of cancellation.**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 Athens from Kos Island Intl. Airport (KGS)?
Eleftherios Venizelos Airport (ATH) is the only airport in Athens with direct flights from Kos Island Intl. Airport (KGS). Check out your options and discover affordable fares on Expedia.
Is it cheaper to buy a plane ticket from Kos Island Intl. Airport (KGS) to Eleftherios Venizelos Airport (ATH) last-minute?
Booking your plane ticket from KGS to ATH shortly before your journey is typically more expensive. However, if there's some wiggle room with your schedule, you could score a cheap last-minute fare.
Is it cheaper to book a KGS to ATH flight and hotel package?
Compared with arranging flights and hotels separately, booking a KGS to ATH flight and hotel package with Expedia could result in significant savings. What's more, having everything in one easy place will take the stress out of planning your trip. Simply secure your flights and choose from our extensive range of stays, then tailor your trip with other add-ons like activities, tours and car rentals.
Can I cancel or change the date of my flight from Kos Island Intl. Airport (KGS) to Eleftherios Venizelos Airport (ATH)?
It's generally possible to cancel or reschedule your KGS to ATH flight. However, if the booking was made more than 24 hours ago, additional charges may apply. Check your airline's policies in your itinerary to see what changes are possible and if any costs are involved. You'll also find more information on our Customer Service portal.

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*Available to One Key members.