Cheap flights from Athens to Kos from £45

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 7/5. Fares are subject to change and may not be available on all flights or dates of travel.
ATH — KGS
29 Jan — 5 Feb1
1 adult
1 adult, Economy, 0 bags

Cheapflights Tip: The best prices from Athens Eleftherios V. to Kos are usually found in March or November, booked 61 days in advance, depart on a Wednesday or Tuesday and return on a Tuesday

Cheap flight deals from Athens to Kos

Enter your travel dates to find the best prices.

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 30 December 2025.

Wed 31/1207:00ATH - KGS
Nonstop1h 05mAegean Airlines
Sat 3/120:35KGS - ATH
Nonstop1h 05mAegean Airlines
Deal found 30/12£179
Tue 30/1207:00ATH - KGS
Nonstop1h 00mAegean Airlines
Thu 1/120:35KGS - ATH
Nonstop1h 05mAegean Airlines
Deal found 28/12£187

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 30 December 2025.

Round-trip from

£65

One-way from

£45

Popular in

August

Cheapest in

March

Average price

£95

Good round-trip deal

£226 or less
Aegean Airlines
  • Aegean Airlines
  • 15/1-18/1
  • Nonstop
  • 2h 00m total
  • Athens to Kos
Sky Express
  • Sky Express
  • 7/5
  • Nonstop
  • 1h 00m total
  • Athens to Kos
Highest demand for flights based on searches. 17% potential increase in price (£17 potential increase over avg. return price).
Cheapest flight prices on average. 4% potential price decrease (£4 potential savings vs. average return price).
Average for round-trip flights in December 2025
Price to beat on a round-trip flight from Athens Eleftherios V. to Kos.

Cheapflights Fare Finder

 
Customise 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 858,174 searches. Data last updated 30 December 2025.
Use the filters below to find and compare flights from Athens to Kos that are best for you.

Fly from

Athens

Fly to

Kos

Route

Depart

Return

Price

AthensKos

ATH - KGS

ATHKGS

Athens Eleftherios V.

Thu 15/1

15:05-16:10

Nonstop1h 05m

Kos

Mon 19/1

16:40-17:35

Nonstop0h 55m

£65

AthensKos

ATH - KGS

ATHKGS

Athens Eleftherios V.

Thu 15/1

11:00-12:05

Nonstop1h 05m

Kos

Sun 18/1

12:35-13:30

Nonstop0h 55m

£65

AthensKos

ATH - KGS

ATHKGS

Athens Eleftherios V.

Sun 1/3

07:45-08:50

Nonstop1h 05m

Kos

Sat 7/3

20:35-21:40

Nonstop1h 05m

£75

AthensKos

ATH - KGS

ATHKGS

Athens Eleftherios V.

Fri 9/1

16:00-16:50

Nonstop0h 50m

Kos

Fri 16/1

12:35-13:30

Nonstop0h 55m

£79

AthensKos

ATH - KGS

ATHKGS

Athens Eleftherios V.

Tue 20/1

07:00-08:05

Nonstop1h 05m

Kos

Thu 22/1

12:35-13:30

Nonstop0h 55m

£84

AthensKos

ATH - KGS

ATHKGS

Athens Eleftherios V.

Fri 19/6

23:35-00:35

Nonstop1h 00m

Kos

Thu 25/6

06:00-07:10

Nonstop1h 10m

£107

AthensKos

ATH - KGS

ATHKGS

Athens Eleftherios V.

Sun 14/6

23:35-00:35

Nonstop1h 00m

Kos

Fri 19/6

06:00-07:10

Nonstop1h 10m

£116

AthensKos

ATH - KGS

ATHKGS

Athens Eleftherios V.

Thu 7/5

07:05-08:05

Nonstop1h 00m

£45

AthensKos

ATH - KGS

ATHKGS

Athens Eleftherios V.

Wed 3/6

16:35-17:30

Nonstop0h 55m

£65

AthensKos

ATH - KGS

ATHKGS

Athens Eleftherios V.

Sat 25/4

07:45-08:50

Nonstop1h 05m

£70

Flights are sorted by cheapest return flights first.

Deals found on 28/12

Showing 1-10 of 14 results
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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 return 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?

Use this chart to determine the optimal time to book a return flight from Athens to Kos. Price data was last updated on 26 December 2025.

The best time to book flights from Athens to Kos is 61 days before your desired departure date. The cost of your flight will likely increase significantly if you book two weeks in advance of your flight.

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

Currently, February is the cheapest month in which you can book a flight from Athens to Kos (average of £50). Flying from Athens to Kos in April is currently the most expensive (average of £85). 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 30 December 2025.

When flying from Athens to Kos, the time of day you fly usually plays a role in the price. Save by searching for a flight at midday, which can drop the price by up to 38% versus a flight in the evening.

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 30 December 2025.
See what other customers who have flown with Aegean Airlines and Sky Express from Athens to Kos have to say. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.

Crew

8.6

Boarding

7.8

Entertainment

6.9

Overall

8.1

Food

7.4

Comfort

7.8

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

Crew

8.6

Boarding

7.8

Entertainment

6.9

Overall

8.1

Food

7.4

Comfort

7.8

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

Crew

8.6

Boarding

7.8

Entertainment

6.9

Overall

8.1

Food

7.4

Comfort

7.8

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?

    You will need to book a flight from Athens Eleftherios V. to Kos if you want to fly from Athens to Kos. At least 2 different airlines have flights from Eleftherios V. (ATH) to Kos (KGS) on a regular basis. There are 5 flights to Kos from the Athens airport per day. If you manage to book one that is nonstop, then you can expect the flight time from ATH to KGS to be around 0h 50m.

  • How popular is this Athens to Kos flight route?

  • How long is the flight from Athens to Kos?

    A quick flight from Athens to Kos can take about 1h 05m. Aegean Airlines provides one of the quickest options available for as low as £65. There are 189 mi between Athens and Kos. Generally, flights for this route are direct.

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

    According to our current data, Sky Express (£37), and Aegean Airlines (£69) offers the cheapest pricing from Athens to Kos. Sky Express is 66% cheaper than the average price of flights available within the next 90 days to this destination.

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

    Consider Etihad Airways (87%), Sky Express (84%) or Aegean Airlines (81%) when booking your flight. These represent the most reliable airlines when flying from Athens to Kos.

  • What are the cheapest flights from Athens to Kos?

    On average you can expect to pay £226 for a flight from Athens to Kos. The cheapest flight overall is £171 while the most popular route, (Athens Eleftherios V. - Kos) is currently priced at £82.

  • 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 holiday 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, February is the cheapest month in which you can book a flight from Athens to Kos (average of £50). Flying from Athens to Kos in April is currently the most expensive (average of £85). 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

Travelling to a place near Kos?

Book flights to Kos if you plan to visit one of these locations
Marmari
Kardamena

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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.

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 858,174 searches. Data last updated 30 December 2025.
AirlineCheapestAverageFlexibilityOn-time
Sky ExpressCheapest£67Average£86FlexibilityNo cancel feeOn-timeN/A
Search Sky Express flights
Aegean AirlinesCheapest£84Average£110FlexibilityNo cancel feeOn-time87%
Search Aegean Airlines flights

Fly with Cheapflights

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How does Cheapflights help users find flights from Athens to Kos?

Cheapflights helps you search for flights from Athens to Kos via 900+ travel sites so you don’t have to. After performing a flight search, users can also filter their flight selection by filtering for price, number of stops, airlines, and so on.

Why should you use Cheapflights to find cheap flight tickets from Athens to Kos?

Cheapflights simply makes it quick and affordable to book flights from Athens to Kos by bringing together all flight options from hundreds of airlines and agencies online — and put it in one place for you to choose from. Plus, Cheapflights is 100% free to use for all.

Can Cheapflights find flights from Athens to Kos with no change fees?

Need flexible booking options for your flight to Kos from Athens? Don’t worry, Cheapflights have you covered. Use our search filter to only show flights with no change fees.

Can Cheapflights notify me if prices for flights from Athens to Kos become cheaper?

Of course! You can now track prices for flights from Athens to Kos and get an alert from Cheapflights when they change. Have a valid email address ready and click the bell icon next to the flight deals above to set up your price alerts.

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