$230 Cheap Flights from Kos (KGS) to Zakynthos (ZTH)

View $230 flight on Tue, Aug 26, 2025Opens in a new window

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

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Cheap Flights from Kos to Zakynthos (KGS-ZTH)

Prices were available within the past 7 days and start at $230 for one-way flights and $394 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Aegean
Tue, Aug 26 - Sat, Aug 30
KGS
Kos
ZTH
Zakynthos
$394 Roundtrip, found 1 day ago
$394
Roundtrip
found 1 day ago
Select Aegean flight, departing Tue, Aug 26 from Kos to Zakynthos, returning Sat, Aug 30, priced at $394 found 1 day ago
SKY express
Tue, Aug 26 - Sat, Aug 30
KGS
Kos
ZTH
Zakynthos
$450 Roundtrip, found 1 day ago
$450
Roundtrip
found 1 day ago
Select SKY express flight, departing Tue, Aug 26 from Kos to Zakynthos, returning Sat, Aug 30, priced at $450 found 1 day ago
Flights from Kos (KGS) to Zakynthos (ZTH)
Origin airport
Kos Island Intl.
Destination airport
Zakynthos Intl.
Airlines serving
Aegean, SKY express
Roundtrip price
$394
Distance
347 mi

Kos to Zakynthos Flights

The cheapest times to fly from Kos to Zakynthos

On average, Thursday can be the cheapest time to fly, according to data from the Airlines Reporting Corporation (ARC), one of the world's biggest databases for global airline sales. The data reveals that you could save up to 16% by flying on a Thursday—the cheapest day to travel on average—instead of a Sunday—the most expensive. Some of the most affordable flights from Kos to Zakynthos are during the month of August. You can find some of the cheapest flights from Kos to Zakynthos with Expedia's search tool and vast selection of airlines.

 

The best time to book a flight from Kos to Zakynthos

Sunday is one of the best days to book for cheap flights from Kos to Zakynthos: Tickets reserved on a Sunday cost between 6% and 13% less than those reserved on a Friday, according to ARC data. The data also suggests booking early can also lead to cheaper airfares. You could save 24% by buying your tickets for domestic flights at least a month in advance and 10% by booking international flights 2 months in advance.

 

How to find cheap round-trip tickets from Kos to Zakynthos

Being flexible with your dates and using Expedia's Price Drop Protection and Price Tracking features are some of the best ways of finding a cheap ticket from Kos to Zakynthos in 2025. You can also book with separate airlines for your outbound and return journeys, from $230 one-way. Expedia also offers Price Drop Protection, so if the cost of your airfare goes down after booking, you'll receive a credit for the difference*. This is available for a small fee, and is free to One Key Gold and Platinum tier members.

 

Expedia's Price Tracking feature means you can stay on top of airfares without manually checking every day. It sends you automated price alerts for cheap Kos to Zakynthos flights and uses historical data to indicate when the best time to book is. Download Expedia's free app to activate this handy tool in a few easy taps.

 

You could also save big by booking one of Expedia's vacation packages. Bundling together your Kos to Zakynthos airfare with your accommodations and car rental is often cheaper than booking everything separately. There’s also One Key, Expedia's generous rewards program. Join for free and you could earn One Key cash on most bookings to save on future adventures.

 

*Terms apply.

 

Disclaimer: ARC The statistics are based on average round-trip ticket prices between January and August 2023. The percentages you see are averages.

 

Frequently asked questions

How much does a flight from Kos Island Intl. Airport (KGS) to Zakynthos Intl. Airport (ZTH) cost?
Snag a cheap one-way flight from $230 or cheap return flight from $394 from Kos Island Intl. Airport (KGS) to Zakynthos Intl. Airport (ZTH) with Expedia. Enter your travel dates and sort by "Price (lowest to highest)" to find our cheapest flight deals on this route.
What is the cheapest month to fly from Kos Island Intl. Airport (KGS) to Zakynthos Intl. Airport (ZTH)?
Traveling in August may help you find better deals, as it's the cheapest month for flights between KGS and ZTH. You'll typically find the lowest prices during the off-season.
What is the cheapest airline that flies from Kos Island Intl. Airport (KGS) to Zakynthos Intl. Airport (ZTH)?
To find the cheapest airline flying from KGS to ZTH, use Expedia's filter tool. Customize your search based on your travel style, such as preferred carriers and number of stops. You can then sort your results by "Price (lowest to highest)" to see the most affordable options first.
How many flights per day from Kos Island Intl. Airport (KGS) to Zakynthos Intl. Airport (ZTH)?
Direct flights from Kos Island Intl. Airport (KGS) to Zakynthos Intl. Airport (ZTH) aren't available daily, so you'll need to take a flight with a layover. Explore your options with Expedia's filter tool. Enter your travel details and click on either "1 Stop" or "2+ Stops."
What day of the week has the most flights from KGS to ZTH?
Friday is generally the busiest day for flights, while Tuesday tends to be the quietest.* Keep in mind that flight schedules can change based on a range of factors, including the airline and season.*Busiest/quietest day to travel is based on Expedia flight demand through January to December 2024.
What is the best time to fly from Kos Island Intl. Airport (KGS) to Zakynthos Intl. Airport (ZTH)?
To reach Zakynthos Intl. Airport (ZTH) without delays, select a flight that leaves Kos Island Intl. Airport (KGS) before 3 PM. The likelihood of cancellations is 22% higher, on average, for departures after this time.**Most reliable time of the day and month to travel recommendation is based on January through August 2024 flight status data sourced from OAG's global flight data platform.
Is it cheaper to buy a plane ticket from Kos Island Intl. Airport (KGS) to Zakynthos Intl. Airport (ZTH) last-minute?
Holding off until right before your break to book your flight from KGS to ZTH generally means paying more. While you might find some last-minute deals, they aren't always guaranteed. Keep your travel plans flexible for a better chance of getting a bargain.
Is it cheaper to book a KGS to ZTH flight and hotel package?
You'll typically save money by booking a KGS to ZTH flight and hotel package compared to booking separately. In fact, travelers could save hundreds of dollars by bundling with Expedia. And it's easy to manage everything in one convenient place. After choosing your ideal accommodations and flights, you can add extras like tours, activities and car rentals.
Can I cancel or change the date of my flight from Kos Island Intl. Airport (KGS) to Zakynthos Intl. Airport (ZTH)?
Generally, it's possible to cancel or reschedule your KGS to ZTH flight. However, if it's been more than 24 hours since booking, additional fees may apply. Refer to your airline's policies in your itinerary to see what changes are possible and whether any costs are involved. You'll also find further details on our Customer Service portal.

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*Available to One Key members.