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Kos

$86+ Cheap flights from Athens to Kos (ATH - KGS)

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 8/25. Fares are subject to change and may not be available on all flights or dates of travel.
ATH — KGS
Aug 28 — Sep 41
Fri 8/28
Fri 9/4
1 adult, Economy
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Find cheap flights from Athens to Kos with Cheapflights

1. Tell us where you want to go

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Cheapflights Tip: The best prices from Athens Eleftherios V. to Kos are usually found in December or January, booked 73 days in advance, depart on a Sunday or Friday and return on a Monday

Cheap flight deals from Athens to Kos

Cheapest flights from Athens to Kos
Explore the most affordable flight options available from Athens to Kos. Find the lowest fares from popular airlines and budget airlines, with prices last updated on July 29, 2026.

This Booking.com deal was found by Cheapflights users on 7/27. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 9/217:05 am
ATH
-
KGS
Nonstop1h 00m
Sky Express
Sat 9/2610:25 pm
KGS
-
ATH
Nonstop1h 00m
Sky Express
Deal found 7/27$92
This Booking.com deal was found by Cheapflights users on 7/24. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 10/127:05 am
ATH
-
KGS
Nonstop1h 00m
Sky Express
Sat 10/1710:25 pm
KGS
-
ATH
Nonstop1h 00m
Sky Express
Deal found 7/24$108
This Booking.com deal was found by Cheapflights users on 7/27. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 9/216:35 am
ATH
-
KGS
Nonstop1h 00m
Multiple Airlines
Sat 9/2610:25 pm
KGS
-
ATH
Nonstop1h 00m
Multiple Airlines
Deal found 7/27$111
This Kiwi.com deal was found by Cheapflights users on 7/28. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/237:05 am
ATH
-
KGS
Nonstop1h 00m
Sky Express
Sat 9/2610:25 pm
KGS
-
ATH
Nonstop1h 00m
Sky Express
Deal found 7/28$113
This Aegean Airlines deal was found by Cheapflights users on 7/25. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Aegean Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/2211:35 pm
ATH
-
KGS
Nonstop1h 00m
Aegean Airlines
Sun 10/258:40 pm
KGS
-
ATH
Nonstop0h 55m
Aegean Airlines
Deal found 7/25$117
This Booking.com deal was found by Cheapflights users on 7/25. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 9/147:05 am
ATH
-
KGS
Nonstop1h 00m
Sky Express
Thu 9/1710:25 pm
KGS
-
ATH
Nonstop1h 00m
Sky Express
Deal found 7/25$139
This Booking.com deal was found by Cheapflights users on 7/26. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/178:55 pm
ATH
-
KGS
Nonstop1h 00m
Sky Express
Sun 9/208:35 am
KGS
-
ATH
Nonstop1h 00m
Sky Express
Deal found 7/26$143
This Booking.com deal was found by Cheapflights users on 7/28. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/38:55 pm
ATH
-
KGS
Nonstop1h 00m
Sky Express
Mon 9/78:35 am
KGS
-
ATH
Nonstop1h 00m
Sky Express
Deal found 7/28$148
This Kiwi.com deal was found by Cheapflights users on 7/26. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 9/117:05 am
ATH
-
KGS
Nonstop1h 00m
Sky Express
Sat 9/1210:25 pm
KGS
-
ATH
Nonstop1h 00m
Sky Express
Deal found 7/26$152

Find flight deals from Athens to Kos

Discover tips and strategies to find the most affordable flight options for your journey from Athens (ATH) to Kos (KGS). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated July 29, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$92
(Booking.com)

One-way from

$86
(Booking.com)

Popular in

August

Cheapest in

December

Average price

$191

Good round-trip deal

$175 or less

Good one-way deal

$123 or less
Provider with most accurate pricing for Athens Eleftherios V.-Kos flight deals.
Search Deals
Provider most trusted by Cheapflights users for Athens Eleftherios V.-Kos flights.
Search Deals
From Athens Eleftherios V. to Kos
Search Deals
One-way flight from Athens Eleftherios V. to Kos
Search Deals
Highest demand for flights based on searches. 18% potential increase in price ($33 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 2% potential price decrease ($5 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in July 2026
Search Deals
Price to beat on a round-trip flight from Athens Eleftherios V. to Kos.
Search Deals
Price to beat on a one-way flight from Athens Eleftherios V. to Kos.
Search Deals

Cheapflights Fare Finder

 
Customize your flight search to find flights from Athens to Kos that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated July 29, 2026.
Use the filters below to find and compare flights from Athens to Kos that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip
Quickest round-trip

AthensKos

ATH - KGS

ATHKGS

Athens Eleftherios V.

Thu 10/22

11:35 pm-12:35 am

Nonstop1h 00m

Kos

Sun 10/25

8:40 pm-9:35 pm

Nonstop0h 55m

$117

AthensKos

ATH - KGS

ATHKGS

Athens Eleftherios V.

Fri 9/18

11:35 pm-12:35 am

Nonstop1h 00m

Kos

Mon 9/21

6:00 am-7:10 am

Nonstop1h 10m

$153

AthensKos

ATH - KGS

ATHKGS

Athens Eleftherios V.

Fri 9/18

2:45 pm-8:20 pm

1 stop5h 35m

Kos

Mon 9/28

6:00 am-7:10 am

Nonstop1h 10m

$234

AthensKos

ATH - KGS

ATHKGS

Athens Eleftherios V.

Mon 9/21

4:40 pm-9:20 pm

1 stop4h 40m

Kos

Sat 9/26

6:10 pm-7:05 pm

Nonstop0h 55m

$245

AthensKos

ATH - KGS

ATHKGS

Athens Eleftherios V.

Fri 8/21

4:35 pm-5:30 pm

Nonstop0h 55m

Kos

Sat 8/29

6:00 am-7:10 am

Nonstop1h 10m

$254

AthensKos

ATH - KGS

ATHKGS

Athens Eleftherios V.

Sun 9/6

2:45 pm-7:30 pm

1 stop4h 45m

Kos

Sat 9/12

6:00 am-7:10 am

Nonstop1h 10m

$258

AthensKos

ATH - KGS

ATHKGS

Athens Eleftherios V.

Sun 8/9

11:35 pm-12:35 am

Nonstop1h 00m

Kos

Thu 8/13

6:00 am-7:10 am

Nonstop1h 10m

$260
Cheapest one-way

AthensKos

ATH - KGS

ATHKGS

Athens Eleftherios V.

Tue 8/25

9:10 pm-10:10 pm

Nonstop1h 00m

$86

AthensKos

ATH - KGS

ATHKGS

Athens Eleftherios V.

Wed 8/26

8:55 pm-9:55 pm

Nonstop1h 00m

$86

AthensKos

ATH - KGS

ATHKGS

Athens Eleftherios V.

Mon 9/7

11:35 pm-12:35 am

Nonstop1h 00m

$91

Flights are sorted by cheapest round-trip flights first.

Deals found on 7/29

Showing 1-10 of 14 resultsSorted by cheapest first
1
2

Compare providers for flights from Athens to Kos

Provider information is updated monthly. Please note that these providers often have deals for this flight, but the availability may vary on a day-by-day basis on Cheapflights.
Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from Athens to Kos in July.
ProviderPrice AccuracyTrust Score*
FlightHubPrice Accuracy3 starsTrust Score*3 stars
Kiwi.comPrice Accuracy3 starsTrust Score*3 stars
GotogatePrice Accuracy2 starsTrust Score*3 stars
eDreamsPrice Accuracy2 starsTrust Score*3 stars

*The Trust Score is based on feedback from users after their booking experience. It measures overall satisfaction, helping us identify issues like hidden fees, problems during the ticketing process, and the quality of customer service. This score is our best indicator of the provider's quality and reliability.

  • Most accurate provider: When it comes to deals on Athens-Kos flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Athens-Kos flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from Athens-Kos flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on Athens-Kos flights, Cheapflights users trust FlightHub the most. FlightHub has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for Athens-Kos flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.

Best time to book a flight from Athens to Kos

Have a flexible travel schedule? Discover the best time to fly to Kos from Athens with our price prediction graph.
Estimated round-trip price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Cheapflights Insights

Everything you need to know about your flight from Athens to Kos

How far ahead should I book a flight from Athens to Kos?

Booking 72 days in advance of your planned departure date is, on average, the best time to get cheap flights from Athens to Kos. The general trend is that the closer you book to the departure date, the more expensive your flight will be.

What is the cheapest month to book a flight from Athens to Kos?

Currently, December is the cheapest month in which you can book a flight from Athens to Kos (average of $114). Flying from Athens to Kos in August is currently the most expensive (average of $206). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

What is the cheapest time of day to fly from ATH to KGS?

Find hourly flight availability from Athens to Kos. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated July 29, 2026.

Unlike at noon, when flights are generally more expensive, you can save up to 23% on flights from Athens to Kos by exploring options for tickets in the evening.

How much does it cost to fly round-trip from Athens to Kos?

Airfare is below average for this route at the moment.

Athens to Kos flights typically cost between $168 and $244 in September.
The cheapest round-trip price found within the last 5 days was $92 on Sky Express (Sep 21-Sep 26).

Reviews of airlines servicing Kos

Get insights into the airlines that provide service to Kos. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Kos. Reviews last updated July 29, 2026.
Get a feel of what it's like to fly with Aegean Airlines and Sky Express from Athens to Kos by reading reviews from past customers. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
Aegean Airlines
8.1
Very good
902 reviews

Boarding

7.8

Overall

8.1

Comfort

7.9

Food

7.4

Entertainment

6.9

Crew

8.7

Reviews

1 / 20
10.0
Excellent

mandy,Dec 2025

ATH - RIX

You get what you pay for! No food or entertainment but seats were comfortable
Aegean Airlines
8.1
Very good
902 reviews
Aegean Airlines
8.1
Very good
902 reviews

Boarding

7.8

Overall

8.1

Comfort

7.9

Food

7.4

Entertainment

6.9

Crew

8.7

Reviews

1 / 20
10.0
Excellent

mandy,Dec 2025

ATH - RIX

You get what you pay for! No food or entertainment but seats were comfortable
Sky Express
7.6
Good
132 reviews
Aegean Airlines
8.1
Very good
902 reviews

Boarding

7.8

Overall

8.1

Comfort

7.9

Food

7.4

Entertainment

6.9

Crew

8.7

Reviews

1 / 20
10.0
Excellent

mandy,Dec 2025

ATH - RIX

You get what you pay for! No food or entertainment but seats were comfortable

Related info for your journey

Find useful and relevant information for your journey from Athens to Kos. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • What airports do I use to fly from Athens to Kos?

    Booking a flight from Athens Eleftherios V. (ATH) to Kos (KGS) is your only option if you wish to fly from Athens to Kos. On a typical day, there are 6 flights from Eleftherios V. to Kos, all of which are around 1h 00m for a nonstop flight. You can also purchase a plane ticket from 2 airlines when you book a flight from Eleftherios V. to Kos.

  • How popular is this Athens to Kos flight route?

    This flight path from Athens Eleftherios V. to Kos was viewed by 10 users in the past month. Keep an eye out for changes in search interest prior to high and low season.

  • How long is the flight from Athens to Kos?

    Aegean Airlines can get you from Athens to Kos in just under 1h. Your travel time will be generally consistent. Athens and Kos are separated by a distance of 189 mi. All flights are typically nonstop.

  • What are the cheapest airlines flying from Athens to Kos round-trip?

    According to our current data, Sky Express ($106), and Aegean Airlines ($126) offers the cheapest pricing from Athens to Kos. Sky Express is currently priced 31% below the average price you’ll pay for this route.

  • What are the most reliable airlines from Athens to Kos?

    The top 3 most reliable airlines when flying from Athens to Kos are Olympic Air (68%), Etihad Airways (62%) and Aegean Airlines (61%).

  • What are the cheapest flights from Athens to Kos?

    While on average a flight from Athens to Kos is generally $186, our data shows the cheapest flight currently is $80. When looking at the most popular route, (Athens Eleftherios V. - Kos), you can expect to pay $92 for that flight.

  • Can I find deals for flights from Athens to Kos that include hotel bookings?

    Yes. In addition to deals on Athens to Kos flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Athens to Kos?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Athens to Kos.

  • Can I find deals for business class flights from Athens to Kos?

    Yes. Cheapflights offers flight deals from Athens to Kos by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

  • What is the cheapest month to book a flight from Athens to Kos?

    Currently, December is the cheapest month in which you can book a flight from Athens to Kos (average of $114). Flying from Athens to Kos in August is currently the most expensive (average of $206). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

See more FAQs

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Alternative routes for Athens to Kos

See prices for flight routes from nearby airports that may be better suited for you.
Athens to Santorini flights
Athens to Naxos flights
Athens to Mykonos flights
Athens to Paleochori flights
Athens to Rhodes flights
Athens to Karpathos flights

Top 2 airlines flying from Athens to Kos

Discover the top 2 airlines that operate flights from Athens to Kos. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated July 29, 2026.
AirlineCheapestAverageFlexibilityOn-time
Sky ExpressCheapest$106Average$178FlexibilityNo cancel feeOn-timeN/A
Aegean AirlinesCheapest$126Average$181FlexibilityNo cancel feeOn-time87%

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