$126 Cheap Flights from Zürich (ZRH) to Kos (KGS)

View $126 flight on Sun, Nov 9, 2025Opens in a new window

Popular airlines from Zurich Airport (ZRH) to Kos (KGS-Kos Island Intl.)

Cheap Flights from Zürich to Kos (ZRH-KGS)

Prices were available within the past 7 days and start at $126 for one-way flights and $346 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Aegean
Wed, Aug 26 - Mon, Sep 7
ZRH
Zürich
KGS
Kos
$346 Roundtrip, found 4 days ago
$346
Roundtrip
found 4 days ago
Select Aegean flight, departing Wed, Aug 26 from Zürich to Kos, returning Mon, Sep 7, priced at $346 found 4 days ago
Aegean
Wed, Aug 26 - Mon, Sep 7
ZRH
Zürich
KGS
Kos
$352 Roundtrip, found 4 days ago
$352
Roundtrip
found 4 days ago
Select Aegean flight, departing Wed, Aug 26 from Zürich to Kos, returning Mon, Sep 7, priced at $352 found 4 days ago
Aegean
Fri, Jun 5 - Mon, Jun 8
ZRH
Zürich
KGS
Kos
$372 Roundtrip, found 4 hours ago
$372
Roundtrip
found 4 hours ago
Select Aegean flight, departing Fri, Jun 5 from Zürich to Kos, returning Mon, Jun 8, priced at $372 found 4 hours ago
Aegean
Fri, Jun 5 - Mon, Jun 8
ZRH
Zürich
KGS
Kos
$378 Roundtrip, found 4 hours ago
$378
Roundtrip
found 4 hours ago
Select Aegean flight, departing Fri, Jun 5 from Zürich to Kos, returning Mon, Jun 8, priced at $378 found 4 hours ago
Aegean
Wed, Aug 26 - Mon, Sep 7
ZRH
Zürich
KGS
Kos
$382 Roundtrip, found 4 days ago
$382
Roundtrip
found 4 days ago
Select Aegean flight, departing Wed, Aug 26 from Zürich to Kos, returning Mon, Sep 7, priced at $382 found 4 days ago
Aegean
Wed, Aug 26 - Mon, Sep 7
ZRH
Zürich
KGS
Kos
$388 Roundtrip, found 4 days ago
$388
Roundtrip
found 4 days ago
Select Aegean flight, departing Wed, Aug 26 from Zürich to Kos, returning Mon, Sep 7, priced at $388 found 4 days ago
Brussels Airlines
Wed, Aug 26 - Mon, Sep 7
ZRH
Zürich
KGS
Kos
$398 Roundtrip, found 4 days ago
$398
Roundtrip
found 4 days ago
Select Brussels Airlines flight, departing Wed, Aug 26 from Zürich to Kos, returning Mon, Sep 7, priced at $398 found 4 days ago
Swiss International Air Lines
Wed, Aug 26 - Mon, Sep 7
ZRH
Zürich
KGS
Kos
$432 Roundtrip, found 4 days ago
$432
Roundtrip
found 4 days ago
Select Swiss International Air Lines flight, departing Wed, Aug 26 from Zürich to Kos, returning Mon, Sep 7, priced at $432 found 4 days ago
Austrian Airlines
Fri, Sep 11 - Mon, Sep 14
ZRH
Zürich
KGS
Kos
$458 Roundtrip, found 5 days ago
$458
Roundtrip
found 5 days ago
Select Austrian Airlines flight, departing Fri, Sep 11 from Zürich to Kos, returning Mon, Sep 14, priced at $458 found 5 days ago
Lufthansa
Wed, Aug 26 - Mon, Sep 7
ZRH
Zürich
KGS
Kos
$491 Roundtrip, found 4 days ago
$491
Roundtrip
found 4 days ago
Select Lufthansa flight, departing Wed, Aug 26 from Zürich to Kos, returning Mon, Sep 7, priced at $491 found 4 days ago
Flights from Zürich (ZRH) to Kos (KGS)
Origin airport
Zürich
Destination airport
Kos Island Intl.
Roundtrip price
$346
Distance
1195 mi
Average flight time
3 hours 47 mins

Zürich to Kos Flights

The cheapest times to fly from Zürich to Kos

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 Zürich to Kos are during the month of August. You can find some of the cheapest flights from Zürich to Kos with Expedia's search tool and vast selection of airlines.

 

The best time to book a flight from Zürich to Kos

Sunday is one of the best days to book for cheap flights from Zürich to Kos: 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 Zürich to Kos

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 Zürich to Kos in 2025. You can also book with separate airlines for your outbound and return journeys, from $126 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 Zürich to Kos 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 Zürich to Kos 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 Zurich Airport (ZRH) to Kos Island Intl. Airport (KGS) cost?
Grab a cheap one-way flight from $126 or cheap return flight from $346 from Zurich Airport (ZRH) to Kos Island Intl. Airport (KGS) 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 Zurich Airport (ZRH) to Kos Island Intl. Airport (KGS)?
The cheapest month to fly from ZRH to KGS is August, when there's less demand. Off-peak season is often when you'll find lower airfares between these airports.
What is the cheapest airline that flies from Zurich Airport (ZRH) to Kos Island Intl. Airport (KGS)?
To find the cheapest airline flying from ZRH to KGS, use Expedia's filter tool. Customize your search based on what's important to you, such as preferred carriers and number of stops. You can then sort your results by "Price (lowest to highest)" to discover the cheapest flight right away.
How many flights per day from Zurich Airport (ZRH) to Kos Island Intl. Airport (KGS)?
There are no daily nonstop flights from Zurich Airport (ZRH) to Kos Island Intl. Airport (KGS). But you can choose flights with layovers. Filter your search on Expedia to include one or more stops, and you'll be on your way before you know it.
What day of the week has the most flights from ZRH to KGS?
Typically you'll find the largest variety of flight choices on a Friday. Tuesdays tend to be the quietest.* However, this can vary depending on the time of year, airline and other factors.*Busiest/quietest day to travel is based on Expedia flight demand through January to December 2024.
What is the best time to fly from Zurich Airport (ZRH) to Kos Island Intl. Airport (KGS)?
Book a flight from Zurich Airport (ZRH) to Kos Island Intl. Airport (KGS) that takes off before 3 PM to reduce the risk of cancellations. Later departures are on average 22% more likely to be canceled.**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 Zurich Airport (ZRH) to Kos Island Intl. Airport (KGS) last-minute?
Booking your flight from ZRH to KGS shortly before your trip is typically more expensive. However, if there's some wiggle room with your departure dates and times, you could bag a cheap last-minute fare.
Is it cheaper to book a ZRH to KGS flight and hotel package?
Compared with arranging flights and hotels separately, booking a ZRH to KGS flight and hotel package with Expedia could lead to significant savings. What's more, having everything in one convenient place will take the stress out of travel planning. Just secure your flights and choose from our wide range of stays, then personalize your trip with extras like tours and car rentals.
Can I cancel or change the date of my flight from Zurich Airport (ZRH) to Kos Island Intl. Airport (KGS)?
In most cases, you can modify or cancel your ZRH to KGS flight. However, there may be additional fees, especially if you made your booking more than 24 hours ago. Check your itinerary for the airline's guidelines and fees on flight changes, or if you want more details, visit our Customer Service portal.

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*Available to One Key members.