£43 Cheap Flights from Athens (ATH) to Kos (KGS)

View £43 flight on Thu, 29 Oct 2026Opens in a new window

Flight 1

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

  • Be in the know

    Get alerts if flight prices drop or rise*

  • Book smarter

    Save up to 25% on select hotels after you book a flight*

  • Earn twice

    Earn your airline miles on top of our rewards
    Sign in

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

Prices were available within the past 7 days and start at £43 for one-way flights and £88 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Aegean
Thu, 29 Oct - Thu, 5 Nov
ATH
Athens
KGS
Kos
£88 Return, found 1 day ago
£88
Return
found 1 day ago
Select Aegean flight, departing Thu, 29 Oct from Athens to Kos, returning Thu, 5 Nov, priced at £88 found 1 day ago
Aegean
Sat, 6 Jun - Sun, 7 Jun
ATH
Athens
KGS
Kos
£88 Return, found 3 days ago
£88
Return
found 3 days ago
Select Aegean flight, departing Sat, 6 Jun from Athens to Kos, returning Sun, 7 Jun, priced at £88 found 3 days ago
Aegean
Thu, 11 Jun - Thu, 18 Jun
ATH
Athens
KGS
Kos
£97 Return, found 4 hours ago
£97
Return
found 4 hours ago
Select Aegean flight, departing Thu, 11 Jun from Athens to Kos, returning Thu, 18 Jun, priced at £97 found 4 hours ago
Aegean
Thu, 11 Jun - Thu, 18 Jun
ATH
Athens
KGS
Kos
£98 Return, found 4 hours ago
£98
Return
found 4 hours ago
Select Aegean flight, departing Thu, 11 Jun from Athens to Kos, returning Thu, 18 Jun, priced at £98 found 4 hours ago
Aegean
Sun, 25 Oct - Sun, 1 Nov
ATH
Athens
KGS
Kos
£98 Return, found 5 days ago
£98
Return
found 5 days ago
Select Aegean flight, departing Sun, 25 Oct from Athens to Kos, returning Sun, 1 Nov, priced at £98 found 5 days ago
Aegean
Thu, 4 Jun - Sun, 7 Jun
ATH
Athens
KGS
Kos
£105 Return, found 3 days ago
£105
Return
found 3 days ago
Select Aegean flight, departing Thu, 4 Jun from Athens to Kos, returning Sun, 7 Jun, priced at £105 found 3 days ago
Aegean
Thu, 11 Jun - Thu, 18 Jun
ATH
Athens
KGS
Kos
£106 Return, found 4 hours ago
£106
Return
found 4 hours ago
Select Aegean flight, departing Thu, 11 Jun from Athens to Kos, returning Thu, 18 Jun, priced at £106 found 4 hours ago
Aegean
Thu, 4 Jun - Fri, 12 Jun
ATH
Athens
KGS
Kos
£106 Return, found 3 days ago
£106
Return
found 3 days ago
Select Aegean flight, departing Thu, 4 Jun from Athens to Kos, returning Fri, 12 Jun, priced at £106 found 3 days ago
SKY express
Fri, 8 May - Sat, 23 May
ATH
Athens
KGS
Kos
£130 Return, found 1 day ago
£130
Return
found 1 day ago
Select SKY express flight, departing Fri, 8 May from Athens to Kos, returning Sat, 23 May, priced at £130 found 1 day ago
Involatus
Fri, 7 Aug - Mon, 24 Aug
ATH
Athens
KGS
Kos
£175 Return, found 8 hours ago
£175
Return
found 8 hours ago
Select Involatus flight, departing Fri, 7 Aug from Athens to Kos, returning Mon, 24 Aug, priced at £175 found 8 hours ago

Alternative airports near Kos

Prices were available within the past 7 days. Prices and availability are subject to change.

Select flight to Kos Island Intl. KGS. Cheapest and Closest option available. Average driving time to city centre is 25 minutes. Flights from £142
KGS
Kos Island Intl.
CheapestClosest
Average driving time to city centre25 min
Flights from £142

Frequently asked questions

How much does a flight from Athens (ATH-Eleftherios Venizelos) to Kos (KGS-Kos Island Intl.) cost?
One-way flights typically cost between £87 and £185 and return flights often range between £179 and £362. Flight prices vary based on the month and day of the week you want to travel, as well as the airline and how far in advance you book your ticket. Filter your search on Expedia by "Price (lowest to highest)" to see the cheapest fares first, and use the Price Tracking tool to receive alerts when Anaa (AAA) to Toronto, ON (YYZ-Pearson Intl.) ticket fares go up or down.
What is the cheapest month to fly from Athens (ATH-Eleftherios Venizelos) to Kos (KGS-Kos Island Intl.)?
December is typically the cheapest month to fly from Athens (ATH-Eleftherios Venizelos) to Kos (KGS-Kos Island Intl.), with average return fares of approximately £120. This is about 41% lower than the average price throughout the year. December often sees lower prices as it's outside the peak summer travel season, leading to reduced demand. Other cheap months to fly from Athens to Kos include January and November.
Which airlines fly direct from Athens (ATH-Eleftherios Venizelos) to Kos (KGS-Kos Island Intl.)?
Enter ATH to KGS and your travel dates, then apply the 'Nonstop' filter to see only direct flights.
How do I find cheap flights from Athens (ATH-Eleftherios Venizelos) to Kos (KGS-Kos Island Intl.)?
To find a cheap flight from Athens (ATH-Eleftherios Venizelos) to Kos (KGS-Kos Island Intl.), be flexible with your dates. Traveling outside of peak vacation months and booking a mid-week flight can help you save. Early morning and late night flights are often more affordable, too. Expedia allows you to compare flight times, airlines and routes all in one place to find low fares. You can also set up Price Tracking and receive alerts when fares go up or down.
What is the best airline to fly with from Athens (ATH-Eleftherios Venizelos) to Kos (KGS-Kos Island Intl.)?
The best airline to fly with from Athens (ATH-Eleftherios Venizelos) to Kos (KGS-Kos Island Intl.) will differ from traveller to traveller. If you like to fly early, A3 offers early morning flights. If price is the most important factor, OA typically offers the lowest fares. A3 offers the most daily flights from Athens (ATH-Eleftherios Venizelos) to Kos (KGS-Kos Island Intl.), which is great if flexibility is what you value most. The best carrier for this journey could also be the one you have a loyalty membership with, as flying with that airline or another airline within the same alliance could help you collect points or enjoy lounge access.
What is the best time to fly from Athens (ATH-Eleftherios Venizelos) to Kos (KGS-Kos Island Intl.)?
When planning your trip from Athens (ATH-Eleftherios Venizelos) to Kos (KGS-Kos Island Intl.), it's helpful to know that the cheapest months to fly are typically December and January, with average prices around £120 for a return flight. However, the most popular months for travel, offering plenty of flight options, are September and August. Since there isn't an overlap between the cheapest and most popular months, you'll need to decide what's most important for your trip. If saving money is your priority, aim for winter. If you prefer more flight choices and a bustling atmosphere, consider late summer or early autumn. This information is based on booking data from the past year.
How many flights per day from Athens (ATH-Eleftherios Venizelos) to Kos (KGS-Kos Island Intl.)?
There are approximately 4 nonstop flights per day from Athens (ATH-Eleftherios Venizelos) to Kos (KGS-Kos Island Intl.). For even more choice, look at flights that include layovers. There are around 4 connecting flights per day. Some common connection points include Macedonia (SKG), Nikos Kazantzakis (HER), and Diagoras (RHO).
What is the earliest flight from Athens (ATH-Eleftherios Venizelos) to Kos (KGS-Kos Island Intl.)?
The earliest flight from Athens (ATH-Eleftherios Venizelos) to Kos (KGS-Kos Island Intl.) typically departs at approximately 6:35 AM local time. This is a seasonal service active in September. An early departure like this can help you make the most of your time at your destination. To compare early flights on Expedia, select the "Early Morning" and "Morning" filters in your search.
What day of the week has the most flights from Athens (ATH-Eleftherios Venizelos) to Kos (KGS-Kos Island Intl.)?
You'll find the most flights from Athens (ATH-Eleftherios Venizelos) to Kos (KGS-Kos Island Intl.) on a Friday, with around 7 flights available. This gives you a good selection of options for your travel plans. Major airlines on this route include OA, GQ, and A3. Flight schedules are consistent throughout the week, with only a slight variation in the number of flights.
What are the most popular departure times for flights from Athens (ATH-Eleftherios Venizelos) to Kos (KGS-Kos Island Intl.)?
The most popular departure times for flights from Athens (ATH-Eleftherios Venizelos) to Kos (KGS-Kos Island Intl.) are in the afternoon, between 3pm and 6pm. About 29% of passengers prefer this time window. This timing works well because it allows you to have a productive morning before heading to the airport, and you'll arrive in Kos with plenty of time to settle in for the evening.
How long does it take to fly from Athens (ATH-Eleftherios Venizelos) to Kos (KGS-Kos Island Intl.)?
Direct flights from ATH to KGS usually take about 1 hour, traveling roughly 190 miles. If you opt for a connecting flight, expect to add around 10 hours 30 minutes to your journey. Keep in mind that actual flight times can vary due to wind patterns, weather, and air traffic.
Can you fly business or first class from Athens (ATH-Eleftherios Venizelos) to Kos (KGS-Kos Island Intl.)?
Select the "Business class" and "First class" filters when looking for ATH to KGS flights on Expedia. This is the easiest way to compare prices, routes and flight times for your trip.
How do I earn miles on a Athens (ATH-Eleftherios Venizelos) to Kos (KGS-Kos Island Intl.) flight with Expedia?
It's easy to earn miles on a Athens (ATH-Eleftherios Venizelos) to Kos (KGS-Kos Island Intl.) flight when you book with Expedia. Before you confirm your booking, simply select your frequent flyer program and enter your program number. As a member of One Key™, you can also earn OneKeyCash™* on top of your airline miles when you book with Expedia. *Excludes taxes and fees. OneKeyCash is not redeemable for cash and can only be used on Expedia and other participating brands.
What airports do you fly into for Kos from Eleftherios Venizelos (ATH)?
If you're planning to travel to Kos from Eleftherios Venizelos (ATH), you can fly directly into Kos Island Intl. (KGS) Compare routes and airports on Expedia to find the best flight options for your travel plans.
Is it cheaper to buy a plane ticket from Athens (ATH-Eleftherios Venizelos) to Kos (KGS-Kos Island Intl.) at the last minute?
Typically, booking a last minute flight from Athens (ATH-Eleftherios Venizelos) to Kos (KGS-Kos Island Intl.) will be more expensive than booking in advance. As the departure date approaches, there are usually fewer seats available which can drive up the cost. However, if there's some wiggle room with your travel dates and times, you could bag a cheap last-minute fare.
Is it cheaper to book a Athens (ATH-Eleftherios Venizelos) to Kos (KGS-Kos Island Intl.) flight and hotel package?
Securing a Athens (ATH-Eleftherios Venizelos) to Kos (KGS-Kos Island Intl.) flight and hotel package is usually cheaper than booking separately. With Expedia, you can enjoy the ease of organizing your travels all in one place. Select from our extensive range of stays and then add flights, activities and car rentals to your booking. Bundle everything together, and you could save hundreds of dollars.
Can I cancel or change the date of my flight from Athens (ATH-Eleftherios Venizelos) to Kos (KGS-Kos Island Intl.)?
If you booked your Athens (ATH-Eleftherios Venizelos) to Kos (KGS-Kos Island Intl.) flight within the last 24 hours, you may be able to modify or cancel it without any fees. Depending on the airline and the type of ticket you have, additional charges may apply for changes beyond this timeframe. Airline policies and contact information can be found in your itinerary or confirmation email. Or, head to our Customer Service portal if you'd like more information.

Travel information

Origin airport
Eleftherios Venizelos
Destination airport
Kos Island Intl.
Airlines serving
Aegean, Involatus, SKY express
Return price
£87
Distance
303 km
Average flight time
1 hour 2 mins

Book with confidence

Compare flights from Athens to Kos easily and book with confidence

For travelling on business or for pleasure, Expedia makes it easy to book your flights from Athens to Kos. Operating between them flights per day, 20 airlines cover the route. And fly direct, getting you to Kos Island Intl. in just hours. If you have a preferred carrier, use our advanced search tool to find the right flight from Eleftherios Venizelos to Kos Island Intl..  

To make things even better, in the advanced search, you can also choose to fly economy, premium economy, business or first class, select your maximum number of stops, and pick your preferred departure and arrival time. You can also opt for refundable and direct flights. 

Grab a great deal on your flight from Eleftherios Venizelos (ATH) to Kos Island Intl. (KGS)

The easiest way to view the best deals on flights from Athens to Kos today is to enter your travel dates and hit search. From here, you can sort your results by price to see the cheapest flights first. Right now, return flights from Eleftherios Venizelos to Kos Island Intl. start at just £88 and range up to £175.  

To find an even better deal, try  

  • being flexible on your dates – midweek flights can be cheaper
  • looking for other airports near Athens and Kos
  • booking your flight during October, the cheapest month on this route
  • varying your flight times – early morning and late at night are sometimes cheaper 

Why you should book your Athens to Kos flight with Expedia!

We cater for all flight types, cabin classes and airlines. So whether you’re booking flights from Eleftherios Venizelos to Kos Island Intl. for a budget break or a business trip with a bit of pleasure thrown in, we make it easy to secure the seat that’s right for you.  

Thanks to our supersized inventory that offers great choice all in one place, you know you’ll get a great deal with Expedia. Especially if you bundle your flight together with your hotel, you will unlock amazing savings. For added peace of mind, you can choose flexible bookings or filter to find refundable options, so you won’t pay a fee to change your flight.  

Compare flights from Athens to Kos easily and book with confidence

Explore a world of travel with Expedia

*Available to Expedia members.