ATH - KGS

₪171 Find Cheap Flights from Athens to Kos - Compare and Save

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Everything you should know

Cheapest round-trip
₪348
Typical prices: ₪426–₪651
Aegean Airlines
Sun 11.03Sun 18.03
ATH - KGS • Non-stop
Cheapest one-way
₪171
Typical prices: ₪240-₪416
Aegean Airlines
Fri 30.11
ATH - KGS • Non-stop
Nonstop flights
You can fly nonstop with Aegean Airlines and Sky Express. Average duration is 1h 01m
Nonstop flights
+1
Nonstop flights
+1
Avoid delays
Most punctual • 79% on-time
Best time • Fewest delays
Insights
Insights
When to book
in advance
Our data shows that travelers who book at least 17 weeks in advance save around 35% compared to booking last minute.
Insights
Insights
When to travel
Cheapest • 36% price drop
Most popular
Good to know
+1
Good to know
+1
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Booking Insights
Flight Deals

Cheap Flights from Athens to Kos (ATH-KGS)

 
Discover the best prices for you by selecting your travel dates on KAYAK.

Recent round-trip flight deals from Athens to Kos

Thu, 11 Mar - Thu, 18 Mar
Aegean Airlines Logo
15:40 - 16:45ATH  Athens Eleftherios V.-KGS Kos
1h 05mnonstop
Aegean Airlines Logo
14:05 - 15:05KGS  Kos-ATH Athens Eleftherios V.
1h 00mnonstop
₪348Aegean Airlines
Just now
Thu, 26 Nov - Thu, 26 Nov
Aegean Airlines Logo
06:50 - 07:45ATH  Athens Eleftherios V.-KGS Kos
0h 55mnonstop
Aegean Airlines Logo
17:15 - 18:20KGS  Kos-ATH Athens Eleftherios V.
1h 05mnonstop
₪424Aegean Airlines
8 hours ago
Thu, 31 Dec - Sat, 9 Jan
Aegean Airlines Logo
12:30 - 13:35ATH  Athens Eleftherios V.-KGS Kos
1h 05mnonstop
Aegean Airlines Logo
08:25 - 09:30KGS  Kos-ATH Athens Eleftherios V.
1h 05mnonstop
₪491Aegean Airlines
17 hours ago
Sun, 29 Nov - Thu, 3 Dec
Sky Express Logo
10:30 - 11:30ATH  Athens Eleftherios V.-KGS Kos
1h 00mnonstop
Sky Express Logo
21:45 - 22:45KGS  Kos-ATH Athens Eleftherios V.
1h 00mnonstop
₪509Sky Express
2 days ago
Sun, 29 Nov - Thu, 3 Dec
Sky Express Logo
10:30 - 11:30ATH  Athens Eleftherios V.-KGS Kos
1h 00mnonstop
Sky Express Logo
12:00 - 13:00KGS  Kos-ATH Athens Eleftherios V.
1h 00mnonstop
₪555Sky Express
11 hours ago
Sun, 29 Nov - Thu, 3 Dec
Sky Express Logo
10:30 - 11:30ATH  Athens Eleftherios V.-KGS Kos
1h 00mnonstop
Sky Express Logo
12:00 - 13:00KGS  Kos-ATH Athens Eleftherios V.
1h 00mnonstop
₪558Sky Express
1 day ago
Sun, 15 Nov - Thu, 19 Nov
Aegean Airlines Logo
06:50 - 07:45ATH  Athens Eleftherios V.-KGS Kos
0h 55mnonstop
Aegean Airlines Logo
19:55 - 23:55KGS  Kos-ATH Athens Eleftherios V.
4h 00m1 stop Thessaloniki Makedonia
₪634Aegean Airlines
3+ days ago
Thu, 19 Nov - Thu, 19 Nov
Aegean Airlines Logo
06:50 - 07:45ATH  Athens Eleftherios V.-KGS Kos
0h 55mnonstop
Aegean Airlines Logo
19:55 - 23:55KGS  Kos-ATH Athens Eleftherios V.
4h 00m1 stop Thessaloniki Makedonia
₪665Aegean Airlines
6 hours ago
Thu, 19 Nov - Sun, 22 Nov
Aegean Airlines Logo
06:50 - 07:45ATH  Athens Eleftherios V.-KGS Kos
0h 55mnonstop
Aegean Airlines Logo
19:55 - 23:55KGS  Kos-ATH Athens Eleftherios V.
4h 00m1 stop Thessaloniki Makedonia
₪668Aegean Airlines
1 day ago
Thu, 12 Nov - Sun, 15 Nov
Aegean Airlines Logo
06:50 - 07:45ATH  Athens Eleftherios V.-KGS Kos
0h 55mnonstop
Aegean Airlines Logo
19:55 - 23:55KGS  Kos-ATH Athens Eleftherios V.
4h 00m1 stop Thessaloniki Makedonia
₪732Aegean Airlines
3+ days ago
Booking Insights

Price, demand, and travel trends for Athens to Kos flights

Use KAYAK data on prices, travel dates, airlines and seasonal trends to compare options and book flights with more confidence.

How much is a round-trip flight from Athens to Kos?

Round-trip flights from Athens to Kos typically range from ₪426 to ₪651. The lowest price found in the past 5 days was ₪348, on Aegean Airlines.

What's the cheapest day of the week to fly from Athens to Kos?

Based on deals KAYAK users found in the last 12 months, Monday is the cheapest day of the week to fly from Athens to Kos. It’s 11% cheaper than the average day, while Tuesday is the most expensive, with prices 4% higher.

What’s the cheapest month to fly from Athens to Kos?

•December is the cheapest month to fly from Athens to Kos at ₪339 round-trip.
•August (₪659) and July (₪604) are the most expensive months.
•The price difference between flying in the cheapest and most expensive months is 94% on average.
This is based on KAYAK aggregated and averaged internal data over the past 12 months.

When are flights from Athens to Kos the cheapest?

Flights from Athens to Kos are cheapest 17 weeks before departure. Booking in this window typically costs about 35% less than the average last-minute fare (within 2 weeks of the flight), based on KAYAK data.

Key details for Athens to Kos flights

Low season

January

Cheapest flight

₪171
Beat the crowds with an average 75% drop in travelers.
The most popular month to fly with an average 125% increase in travelers.
One-way flight from Athens to Kos

When to book flights from Athens to Kos

Are your dates flexible? Find out the best times to travel from Athens to Kos based on our flight data from the last year. Discover the cheapest month and even day to fly.
Estimated round-trip price

Your Athens to Kos flight questions, answered

Find helpful answers about this route, including flight times, airports, airlines and booking tips.

  • What are the earliest and latest flights from Athens to Kos?

    These are the earliest and latest flight times available from Athens to Kos:

    • Earliest: departs at 06:25 and lands at 07:26
    • Latest: departs at 20:15 and lands at 21:16.

    The flight takes about 1h 01m.

  • How long is a flight from Athens to Kos?

    A nonstop flight from Athens to Kos takes 1h 01m, covering 491 km.

  • Do I need a passport to fly from Athens to Kos?

    No, a passport is not required for this domestic route, but you will need a real ID-compliant driver's license, a state ID or another TSA-accepted form of identification.

  • How much should I expect to pay for a Athens to Kos flight?

    Round-trip flights from Athens to Kos range from ₪426 to ₪651, with an average of ₪531 over the past 12 months. Anything below ₪426 counts as a good deal.

  • How expensive are last-minute Athens to Kos flights?

    Last-minute fares on this route (booked within two weeks of departure) run 19% above the ₪531 route average. Book 17 weeks before departure for the lowest fares.

  • What is the standard checked bag allowance on flights from Athens to Kos?

    There is no standard. Checked-bag policies vary by airline on this route. Most carriers charge ₪42–₪305 for the first checked bag in economy. Premium fares and elite-status bookings typically include a free checked bag.

  • Which aircraft model is used most often on flights from Athens to Kos?

    The ATR 42 / ATR 72 family is used most often on this route, operated mainly by Sky Express and Hahn Air Systems. Other aircraft seen on the route include ATR 72-201 / 202 variants.

  • How are flight departures from Athens to Kos spread across the day?

    Morning is the busiest departure period on Athens to Kos flights, with 34% of flights leaving in that window. Afternoon departures account for 33%, evening flights for 33%, and night flights for 0%.

  • Have flight prices from Athens to Kos changed much recently?

    Yes. Based on fares seen in the past 5 days, round-trip prices on this route showed a wide range, from about ₪348 to ₪1,704. That means the highest observed fare was about 5x higher than the lowest one.

  • How are flight prices from Athens to Kos looking right now?

    One-way fares from Athens to Kos are currently higher than usual. Average one-way flight prices are about ₪861, which is 173% above the typical average for this route.

  • Which airports can I use when flying from Athens to Kos?

    Flights from Athens to Kos usually depart from Athens Eleftherios V. (ATH) and arrive at Kos (KGS).

  • What time of day has the fewest delays on flights from Athens to Kos?

    Morning flights have the fewest delays on this route, while night departures tend to have the most.

  • At what point is a flight from Athens to Kos considered delayed?

    A flight is considered delayed when it departs 15 minutes or more after its scheduled time. This is the standard used by the US Department of Transportation and most airline industry reporting. On the Athens to Kos route, 22% of flights were delayed in the past three months, with delays averaging 1h 15m.

  • Can I save money by using flexible dates for flights from Athens to Kos?

    Yes. Flexible dates can save you up to 15% on flights from Athens to Kos. Monday is the cheapest departure day at ₪476 round-trip on average, while Tuesday is the most expensive at ₪555, a difference of ₪79.

    KAYAK's flexible dates feature shows options up to 3 days before and after your selected dates, making it easier to compare nearby fares.

  • What airlines fly from Athens to Kos?

    2 airlines operate flights between Athens and Kos. The airlines offering direct flights on this route include:

    • Aegean Airlines
    • Sky Express

  • Which airlines offer extra legroom and free seat selection on Athens to Kos flights?

    Among airlines operating Athens to Kos flights:

    • Aegean Airlines: offers extra legroom; offers free seat selection

    Extra legroom and free seat selection availability depends on fare class and route.

  • Which airlines include bags at no extra cost on Athens to Kos flights?

    Here are some options for this route, based on selected ticket types and cabin classes:

    • Aegean Airlines: a cabin bag and a checked bag in Economy Class
    • Sky Express: a cabin bag and a checked bag in Economy Class
    • Hahn Air Systems: a cabin bag and a checked bag in Economy Class

    Bag allowance can vary by ticket type, cabin class, route and airline, so always check the fare details before booking.

  • Which airlines have lounges at the Athens International Airport?

    Several airlines operate their lounges at Athens (ATH) Airport, and travelers won’t have challenges getting a place to relax before their flight. For example, the Aegean Business Lounge is located in Departures Area A. It is accessible to any traveler regardless of the carrier or class, provided they agree to pay for the day’s pass.

  • Which is the best way to get to downtown Kos from Kos Airport?

    Taxis provide the fastest way to get from Kos Airport (KGS) to the city center of Kos, taking the journey in about 27 minutes. Buses run along this route too, taking around 1 hour to get there. This service is ideal if you are on a budget and want to save money.

  • What is the carry-on limit for the airlines flying between Athens and Kos?

    Usually, the maximum allowable on-board size and weight for hand luggage varies from one airline to another. Aegean Airlines has maximum hand luggage of up to 29 lbs and dimensions up to 22 x 18 x 10 in. For SKY Express, the carry-on baggage should be at most 13 lbs, and the sizes should be 21 x 15 x 8 in.

  • Which airlines offer family services on trips between Atghens to Kos?

    Aegean Air and SKY Express are parents’ favorites as they feature many amenities for every family, including the young and the young at heart. The carrier boasts spacious seats with extra legroom. Lastly, they have kid-friendly to engage the little ones throughout the journey.

Your guide to booking Athens to Kos flights

Get tips on when to book, when to fly, and what to know before your trip.
  • If your dates are flexible, aim for a Monday departure and avoid flying on Tuesday. On this route, Monday flights average ₪476, about ₪79 less than Tuesday fares (14% savings) based on the last 12 months.
  • For the best chance at a low fare, aim to book around 17 weeks before you fly. On this route, that window historically saves about 35% versus last-minute pricing (KAYAK booking data, last 12 months).
  • If you can choose when to travel, plan your Athens to Kos trip for December. Fares historically average ₪339 round-trip in that month - typically ₪320 less than the most expensive month, which is August (based on the last 12 months).
  • For the best chance of arriving on time, fly with Sky Express. Over the past three months, 79% of Sky Express flights from Athens to Kos arrived on time, slightly above the route average of 78%. When flights on this route arrive late, they're delayed by an average of 1h 15m, so choosing an airline with strong on-time performance can make a difference if you're on a tight schedule.
  • Athens International Airport, El. Venizelos (ATH) is a hub for Aegean Airlines, Olympic Air, Ryanair, Volotea and Sky Express. These airlines provide nonstop flights to other destinations locally and internationally, primarily to European capitals and some smaller European cities. Flying aboard these carriers guarantees excellent services at ATH. Besides, you will have access to a wide range of nonstop flights to Kos Airport (KGS).
  • Although Athens (ATH) to Kos (KGS) is a short flight, the airlines operating along this route allow passengers to upgrade their Economy seats to Business. To enjoy this chance, keep an ear on the announcement during reservation, check-in, or at the boarding gate. Still, checking with your preferred airline before traveling might be helpful.
  • You can conveniently fly with your four-legged friends from Athens International Airport, El. Venizelos (ATH) to Kos Airport (KGS). Sky Express and Aegean allow domestic furry friends like cats and dogs into their cabins. However, those tagging pets must restrain them in their lockers throughout the trip.
  • Both Athens International Airport, El. Venizelos (ATH) and Kos Airport (KGS) collaborate with various airlines to provide essential services for passengers with mobility limitations. Both the departure and arrival airports have well-trained staff willing to assist with movement through security checks. The washrooms are accessible, and wheelchairs are available on request.
  • After landing at Kos Airport (KGS), remember that the facility serves other towns in the neighborhood beyond Kos Island. As such, if you intend to explore towns like Athikia, Tolon, Akraifnion, Kokkinon, or Larimna, fly into KGS first before getting there by bus, taxi, or car rental.

Prefer to fly non-stop from Athens Eleftherios V. to Kos?

 
Find which airlines fly direct from Athens Eleftherios V. Airport to Kos Airport, which days they fly and book direct flights.

Nonstop departures

Athens Eleftherios V. to Kos

Monday

Aegean Airlines,Sky Express

Aegean Airlines,Sky Express

Tuesday

Aegean Airlines,Sky Express

Aegean Airlines,Sky Express

Wednesday

Aegean Airlines,Sky Express

Aegean Airlines,Sky Express

Thursday

Aegean Airlines,Sky Express

Aegean Airlines,Sky Express

Friday

Aegean Airlines,Sky Express

Aegean Airlines,Sky Express

Saturday

Aegean Airlines,Sky Express

Aegean Airlines,Sky Express

Sunday

Aegean Airlines,Sky Express

Aegean Airlines,Sky Express

See more direct flights

Nonstop returns

Kos to Athens Eleftherios V.

Monday

Aegean Airlines,Sky Express

Aegean Airlines,Sky Express

Tuesday

Aegean Airlines,Sky Express

Aegean Airlines,Sky Express

Wednesday

Aegean Airlines,Sky Express

Aegean Airlines,Sky Express

Thursday

Aegean Airlines,Sky Express

Aegean Airlines,Sky Express

Friday

Aegean Airlines,Sky Express

Aegean Airlines,Sky Express

Saturday

Aegean Airlines,Sky Express

Aegean Airlines,Sky Express

Sunday

Aegean Airlines,Sky Express

Aegean Airlines,Sky Express

See more direct flights

More options for your flight from Athens to Kos

Complete your trip to Kos with a hotel stay or car rental