ATH - KGS

C$ 80 Find Cheap Flights from Athens to Kos – Compare and Save

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Everything you should know

Cheapest round-trip
C$ 135
Typical prices: C$ 199-C$ 304
Aegean Airlines
Mon 19/11Fri 23/11
ATH - KGS • Direct
Cheapest one-way flights
C$ 81
Typical prices: C$ 112-C$ 194
Aegean Airlines
Sat 24/11
ATH - KGS • Direct
Direct flights
You can fly direct with Aegean Airlines and Sky Express. Average duration is 1h 01m
Direct flights
+1
Direct flights
+1
Avoid delays
Most punctual • 79% on-time
Best time • Fewest delays
Insights
Insights
When to book
in advance
Our data shows that travellers 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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We hope you enjoy your trip to Kos!
Flight Deals
Booking Insights
Expert advice
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, 19 Nov - Mon, 23 Nov
Aegean Airlines Logo
7:10 p.m. - 8:00 p.m.ATH  Athens Eleftherios V.-KGS Kos
0h 50mdirect
Aegean Airlines Logo
8:40 p.m. - 9:35 p.m.KGS  Kos-ATH Athens Eleftherios V.
0h 55mdirect
C$ 135Aegean Airlines
2 days ago
Thu, 26 Nov - Thu, 26 Nov
Aegean Airlines Logo
6:50 a.m. - 7:45 a.m.ATH  Athens Eleftherios V.-KGS Kos
0h 55mdirect
Aegean Airlines Logo
8:40 p.m. - 9:35 p.m.KGS  Kos-ATH Athens Eleftherios V.
0h 55mdirect
C$ 164Aegean Airlines
1 day ago
Wed, 24 Mar - Sun, 28 Mar
Aegean Airlines Logo
6:50 a.m. - 7:45 a.m.ATH  Athens Eleftherios V.-KGS Kos
0h 55mdirect
Aegean Airlines Logo
6:05 p.m. - 7:15 p.m.KGS  Kos-ATH Athens Eleftherios V.
1h 10mdirect
C$ 179Aegean Airlines
2 days ago
Thu, 26 Nov - Thu, 26 Nov
Aegean Airlines Logo
6:50 a.m. - 7:45 a.m.ATH  Athens Eleftherios V.-KGS Kos
0h 55mdirect
Aegean Airlines Logo
5:15 p.m. - 6:20 p.m.KGS  Kos-ATH Athens Eleftherios V.
1h 05mdirect
C$ 182Aegean Airlines
2 days ago
Thu, 26 Nov - Thu, 26 Nov
Aegean Airlines Logo
6:50 a.m. - 7:45 a.m.ATH  Athens Eleftherios V.-KGS Kos
0h 55mdirect
Aegean Airlines Logo
5:15 p.m. - 6:20 p.m.KGS  Kos-ATH Athens Eleftherios V.
1h 05mdirect
C$ 184Aegean Airlines
3+ days ago
Sun, 1 Nov - Thu, 5 Nov
Aegean Airlines Logo
2:15 p.m. - 3:20 p.m.ATH  Athens Eleftherios V.-KGS Kos
1h 05mdirect
Aegean Airlines Logo
8:40 p.m. - 9:35 p.m.KGS  Kos-ATH Athens Eleftherios V.
0h 55mdirect
C$ 191Aegean Airlines
2 days ago
Sat, 31 Oct - Fri, 13 Nov
Aegean Airlines Logo
6:50 a.m. - 7:45 a.m.ATH  Athens Eleftherios V.-KGS Kos
0h 55mdirect
Aegean Airlines Logo
8:40 p.m. - 9:35 p.m.KGS  Kos-ATH Athens Eleftherios V.
0h 55mdirect
C$ 199Aegean Airlines
14 hours ago
Thu, 19 Nov - Mon, 23 Nov
Aegean Airlines Logo
1:00 p.m. - 7:30 p.m.ATH  Athens Eleftherios V.-KGS Kos
6h 30m1 stop Thessaloniki Makedonia
Aegean Airlines Logo
8:40 p.m. - 9:35 p.m.KGS  Kos-ATH Athens Eleftherios V.
0h 55mdirect
C$ 259Aegean Airlines
1 day ago
Fri, 4 Dec - Sun, 6 Dec
Aegean Airlines Logo
3:40 p.m. - 4:45 p.m.ATH  Athens Eleftherios V.-KGS Kos
1h 05mdirect
Aegean Airlines Logo
7:55 p.m. - 11:55 p.m.KGS  Kos-ATH Athens Eleftherios V.
4h 00m1 stop Thessaloniki Makedonia
C$ 262Aegean Airlines
1 day ago
Wed, 2 Dec - Sun, 6 Dec
Aegean Airlines Logo
6:50 a.m. - 7:45 a.m.ATH  Athens Eleftherios V.-KGS Kos
0h 55mdirect
Aegean Airlines Logo
7:55 p.m. - 11:55 p.m.KGS  Kos-ATH Athens Eleftherios V.
4h 00m1 stop Thessaloniki Makedonia
C$ 263Aegean Airlines
4 hours 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 C$ 199 to C$ 304. The lowest price found in the past 5 days was C$ 135, 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 is the cheapest month to fly from Athens to Kos?

•December is the cheapest month to fly from Athens to Kos at C$ 158 round-trip.
•August (C$ 308) and July (C$ 282) 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.

Expert advice

Expert advice for your flight from Athens to Kos

 
KAYAK teamed up with top travel experts to share the best tips for your journey.
Our travel experts
Yulia Denisyuk

Yulia Denisyuk

Expert on Aegean Airlines

Yulia is a freelance journalist who’s dispatched from 90+ countries. Her work focuses on cultures, adventure trips and air travel, appearing in NatGeo, NYT, CNTraveler, and more. For past assignments, she’s stayed with nomads in Mongolia and learned the art of Imigongo in Rwanda. She’s based in Chicago; in winter she often questions that decision.

Daniel Scheffler

Daniel Scheffler

Expert on Sky Express

Daniel Scheffler is a travel writer, podcaster, and producer. Born in Africa, bred in Europe and now living in America he has traveled to 140 countries (and all 50 U.S. states). Plus he has stayed at over 2500 hotels across the globe. His original shows Everywhere and Without Maps (available on Spotify) showcase his beliefs, travel is about humanity and sharing that beauty. And thus it reminds you that you shouldn’t believe everything you think.

Key details for Athens to Kos flights

Low season

January

Cheapest flight

C$ 81
Beat the crowds with an average 64% drop in traveller numbers.
The most popular month to fly with an average 116% increase in traveller numbers.
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 6:15 am and lands at 7:16 am
    • Latest: departs at 11:35 pm and lands at 12:36 am.

    The flight takes about 1h 01m.

  • Which cabin classes can I book on flights from Athens to Kos?

    Only Economy Class is available on flights from Athens to Kos.

  • How long does a flight from Athens to Kos take?

    A direct 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 another form of identification, such as a driver's licence.

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

    Round-trip flights from Athens to Kos range from C$ 199 to C$ 304, with an average of C$ 248 over the past 12 months. Anything below C$ 199 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 C$ 248 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 C$ 20–C$ 142 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% 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 C$ 135 to C$ 745. That means the highest observed fare was about 6x 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 C$ 348, which is 137% above the typical average for this route.

  • What car rental options are available at Kos Airport (KGS)?

    Kos Airport (KGS) hosts 5 major car rental companies, with daily rates starting from around C$ 12 for economy cars. Top options include:

    • ABBYCAR
    • Exer Rent a Car
    • Caldera
    • Europcar
    • Alma Car Hire

  • 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 considered delayed on the route from Athens to Kos?

    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 C$ 222 round-trip on average, while Tuesday is the most expensive at C$ 259, a difference of C$ 37.

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

  • Which 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 carry-on bag and a checked bag in Economy Class
    • Sky Express: a carry-on bag and a checked bag in Economy Class
    • Hahn Air Systems: a carry-on bag and a checked bag in Economy Class

    Baggage 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 C$ 222, about C$ 37 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 C$ 158 round-trip in that month – typically C$ 150 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 direct from Athens to Kos?

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

Direct 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 nonstop flights

Direct 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 nonstop flights

More options for your flight from Athens to Kos

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