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£117 Cheap Flights from Zakynthos (ZTH) to Kos (KGS)

View £117 flight on Sun, 13 Sept 2026Opens in a new window

Flight 1

Popular airlines from Zakynthos (ZTH-Zakynthos Intl.) to Kos (KGS-Kos Island Intl.)

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Cheap Flights from Zakynthos (ZTH) to Kos (KGS)

Prices were available within the past 7 days and start at £117 for one-way flights and £234 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Aegean
Sun, 13 Sept - Sun, 20 Sept
ZTH
Zakynthos
KGS
Kos
£234 Return, found 2 days ago
£234
Return
found 2 days ago
Select Aegean flight, departing Sun, 13 Sept from Zakynthos to Kos, returning Sun, 20 Sept, priced at £234 found 2 days ago
Aegean
Sun, 13 Sept - Sun, 20 Sept
ZTH
Zakynthos
KGS
Kos
£243 Return, found 2 days ago
£243
Return
found 2 days ago
Select Aegean flight, departing Sun, 13 Sept from Zakynthos to Kos, returning Sun, 20 Sept, priced at £243 found 2 days ago
Aegean
Sun, 13 Sept - Sun, 20 Sept
ZTH
Zakynthos
KGS
Kos
£252 Return, found 2 days ago
£252
Return
found 2 days ago
Select Aegean flight, departing Sun, 13 Sept from Zakynthos to Kos, returning Sun, 20 Sept, priced at £252 found 2 days ago
Aegean
Sun, 13 Sept - Sun, 20 Sept
ZTH
Zakynthos
KGS
Kos
£262 Return, found 2 days ago
£262
Return
found 2 days ago
Select Aegean flight, departing Sun, 13 Sept from Zakynthos to Kos, returning Sun, 20 Sept, priced at £262 found 2 days ago
Aegean
Sun, 13 Sept - Sun, 20 Sept
ZTH
Zakynthos
KGS
Kos
£271 Return, found 2 days ago
£271
Return
found 2 days ago
Select Aegean flight, departing Sun, 13 Sept from Zakynthos to Kos, returning Sun, 20 Sept, priced at £271 found 2 days ago
Aegean
Sun, 13 Sept - Sun, 20 Sept
ZTH
Zakynthos
KGS
Kos
£277 Return, found 2 days ago
£277
Return
found 2 days ago
Select Aegean flight, departing Sun, 13 Sept from Zakynthos to Kos, returning Sun, 20 Sept, priced at £277 found 2 days ago
Aegean
Sun, 13 Sept - Sun, 20 Sept
ZTH
Zakynthos
KGS
Kos
£287 Return, found 2 days ago
£287
Return
found 2 days ago
Select Aegean flight, departing Sun, 13 Sept from Zakynthos to Kos, returning Sun, 20 Sept, priced at £287 found 2 days ago
Aegean
Sun, 13 Sept - Sun, 20 Sept
ZTH
Zakynthos
KGS
Kos
£290 Return, found 2 days ago
£290
Return
found 2 days ago
Select Aegean flight, departing Sun, 13 Sept from Zakynthos to Kos, returning Sun, 20 Sept, priced at £290 found 2 days ago
Aegean
Sun, 13 Sept - Sun, 20 Sept
ZTH
Zakynthos
KGS
Kos
£296 Return, found 2 days ago
£296
Return
found 2 days ago
Select Aegean flight, departing Sun, 13 Sept from Zakynthos to Kos, returning Sun, 20 Sept, priced at £296 found 2 days ago
Aegean
Sun, 13 Sept - Sun, 20 Sept
ZTH
Zakynthos
KGS
Kos
£306 Return, found 2 days ago
£306
Return
found 2 days ago
Select Aegean flight, departing Sun, 13 Sept from Zakynthos to Kos, returning Sun, 20 Sept, priced at £306 found 2 days ago

Frequently asked questions

How much does a flight from Zakynthos (ZTH-Zakynthos Intl.) to Kos (KGS-Kos Island Intl.) cost?
You can find one-way and return flights from ZTH to KGS with Expedia. 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 our cheapest fares first, and use the Price Tracking tool to receive alerts when ZTH to KGS ticket fares go up or down.
What is the cheapest month to fly from Zakynthos (ZTH-Zakynthos Intl.) to Kos (KGS-Kos Island Intl.)?
The cheapest months to fly from ZTH to KGS are typically during off-peak season when demand is low. Traveling in off-peak or shoulder months is usually a good way to secure cheap tickets, just remember to avoid flying during holidays if you are able to. Use the calendar view in your search to see which months have low fares on this route.
Which airlines fly direct from Zakynthos (ZTH-Zakynthos Intl.) to Kos (KGS-Kos Island Intl.)?
Enter ZTH to KGS and your travel dates, then apply the 'Nonstop' filter to see only direct flights.
How do I find cheap flights from Zakynthos (ZTH-Zakynthos Intl.) to Kos (KGS-Kos Island Intl.)?
To find a cheap flight from Zakynthos (ZTH-Zakynthos Intl.) 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 time to fly from Zakynthos (ZTH-Zakynthos Intl.) to Kos (KGS-Kos Island Intl.)?
The best time to fly is usually mid-week (Tuesday or Wednesday) and during early morning hours as flights tend to be cheaper, less crowded, and generally more on-time. Avoid major holidays and peak vacation seasons for smoother travel. Combining off-peak days and hours often gives the best combination of cost, comfort, and convenience.
How many flights per day from Zakynthos (ZTH-Zakynthos Intl.) to Kos (KGS-Kos Island Intl.)?
There are approximately 2 connecting flights per day from Zakynthos Intl. (ZTH) to Kos Island Intl. (KGS). A common connection point is Eleftherios Venizelos (ATH).
What is the earliest flight from Zakynthos (ZTH-Zakynthos Intl.) to Kos (KGS-Kos Island Intl.)?
The earliest flight from Zakynthos (ZTH-Zakynthos Intl.) to Kos (KGS-Kos Island Intl.) typically departs around 8:20 AM. This flight is operated by Olympic and Aegean. This is a seasonal service active in July. 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 Zakynthos (ZTH-Zakynthos Intl.) to Kos (KGS-Kos Island Intl.)?
You'll typically find the most flights from Zakynthos (ZTH-Zakynthos Intl.) to Kos (KGS-Kos Island Intl.) on a Tuesday, with around 4 flights available. This gives you several flight options for your travel plans. Major airlines on this route include Sky Express and Olympic.
What are the most popular departure times for flights from Zakynthos (ZTH-Zakynthos Intl.) to Kos (KGS-Kos Island Intl.)?
The most popular departure times for flights from Zakynthos (ZTH-Zakynthos Intl.) to Kos (KGS-Kos Island Intl.) are in the late evening, from 9pm to midnight. Many major carriers, including Olympic and Sky Express, offer flights during this window. Many travellers prefer these times as they allow for a full day at your origin before an evening flight, and an early morning arrival at your destination.
How long does it take to fly from Zakynthos (ZTH-Zakynthos Intl.) to Kos (KGS-Kos Island Intl.)?
There are no direct flights from Zakynthos (ZTH) to Kos (KGS). Flights with one stop typically take around 10 hours 30 minutes, covering a distance of about 558 kilometers. Keep in mind that actual flight times can vary due to factors like layover duration, routing, and weather conditions.
Can you fly business or first class from Zakynthos (ZTH) to Kos (KGS)?
Select the "Business class" and "First class" filters when looking for Zakynthos (ZTH) to Kos (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 Zakynthos (ZTH-Zakynthos Intl.) to Kos (KGS-Kos Island Intl.) flight with Expedia?
It's easy to earn miles on a Zakynthos (ZTH-Zakynthos Intl.) 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 (KGS) from Zakynthos (ZTH)?
If you're planning to travel to Kos from Zakynthos Intl. (ZTH), you can fly directly into Kos Island Intl. (KGS) which offers international flights and connections. 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 Zakynthos (ZTH-Zakynthos Intl.) to Kos (KGS-Kos Island Intl.) at the last minute?
Typically, booking a last minute flight from Zakynthos (ZTH-Zakynthos Intl.) 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 Zakynthos (ZTH-Zakynthos Intl.) to Kos (KGS-Kos Island Intl.) flight and hotel package?
Securing a Zakynthos (ZTH-Zakynthos Intl.) 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 Zakynthos (ZTH-Zakynthos Intl.) to Kos (KGS-Kos Island Intl.)?
If you booked your Zakynthos (ZTH-Zakynthos Intl.) 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
Zakynthos Intl.
Destination airport
Kos Island Intl.
Return price
£234
Distance
555 km

Book with confidence

Compare flights from Zakynthos to Kos easily and book with confidence

For travelling on business or for pleasure, Expedia makes it easy to book your flights from Zakynthos 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 Zakynthos Intl. 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 Zakynthos Intl. (ZTH) to Kos Island Intl. (KGS)

The easiest way to view the best deals on flights from Zakynthos 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 Zakynthos Intl. to Kos Island Intl. start at just £234 and range up to £306.  

To find an even better deal, try  

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

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

We cater for all flight types, cabin classes and airlines. So whether you’re booking flights from Zakynthos Intl. 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 Zakynthos to Kos easily and book with confidence

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*Available to Expedia members.