$133 Cheap Flights from Prague (PRG) to Kos (KGS)

View $133 flight on Tue, Nov 25, 2025Opens in a new window

Popular airlines from Vaclav Havel Airport (PRG) to Kos (KGS-Kos Island Intl.)

Cheap Flights from Prague to Kos (PRG-KGS)

Prices were available within the past 7 days and start at $133 for one-way flights and $327 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Smartwings
Sat, Oct 18 - Sun, Oct 19
PRG
Prague
KGS
Kos
$327 Roundtrip, found 1 day ago
$327
Roundtrip
found 1 day ago
Select Smartwings flight, departing Sat, Oct 18 from Prague to Kos, returning Sun, Oct 19, priced at $327 found 1 day ago
SKY express
Sat, Nov 22 - Sat, Nov 29
PRG
Prague
KGS
Kos
$351 Roundtrip, found 5 days ago
$351
Roundtrip
found 5 days ago
Select SKY express flight, departing Sat, Nov 22 from Prague to Kos, returning Sat, Nov 29, priced at $351 found 5 days ago
Austrian Airlines
Wed, Oct 15 - Wed, Oct 22
PRG
Prague
KGS
Kos
$355 Roundtrip, found 1 day ago
$355
Roundtrip
found 1 day ago
Select Austrian Airlines flight, departing Wed, Oct 15 from Prague to Kos, returning Wed, Oct 22, priced at $355 found 1 day ago
SKY express
Sat, Nov 22 - Sat, Nov 29
PRG
Prague
KGS
Kos
$355 Roundtrip, found 5 days ago
$355
Roundtrip
found 5 days ago
Select SKY express flight, departing Sat, Nov 22 from Prague to Kos, returning Sat, Nov 29, priced at $355 found 5 days ago
Lufthansa
Wed, Oct 1 - Wed, Oct 1
PRG
Prague
KGS
Kos
$359 Roundtrip, found 3 days ago
$359
Roundtrip
found 3 days ago
Select Lufthansa flight, departing Wed, Oct 1 from Prague to Kos, returning Wed, Oct 1, priced at $359 found 3 days ago
SKY express
Sat, Nov 22 - Sat, Nov 29
PRG
Prague
KGS
Kos
$367 Roundtrip, found 5 days ago
$367
Roundtrip
found 5 days ago
Select SKY express flight, departing Sat, Nov 22 from Prague to Kos, returning Sat, Nov 29, priced at $367 found 5 days ago
Austrian Airlines
Wed, Oct 1 - Wed, Oct 1
PRG
Prague
KGS
Kos
$369 Roundtrip, found 3 days ago
$369
Roundtrip
found 3 days ago
Select Austrian Airlines flight, departing Wed, Oct 1 from Prague to Kos, returning Wed, Oct 1, priced at $369 found 3 days ago
Austrian Airlines
Wed, Oct 1 - Wed, Oct 1
PRG
Prague
KGS
Kos
$369 Roundtrip, found 3 days ago
$369
Roundtrip
found 3 days ago
Select Austrian Airlines flight, departing Wed, Oct 1 from Prague to Kos, returning Wed, Oct 1, priced at $369 found 3 days ago
Aegean
Sat, Nov 22 - Sat, Nov 29
PRG
Prague
KGS
Kos
$371 Roundtrip, found 5 days ago
$371
Roundtrip
found 5 days ago
Select Aegean flight, departing Sat, Nov 22 from Prague to Kos, returning Sat, Nov 29, priced at $371 found 5 days ago
SKY express
Sat, Nov 22 - Sat, Nov 29
PRG
Prague
KGS
Kos
$391 Roundtrip, found 5 days ago
$391
Roundtrip
found 5 days ago
Select SKY express flight, departing Sat, Nov 22 from Prague to Kos, returning Sat, Nov 29, priced at $391 found 5 days ago

Frequently asked questions

How much does a flight from Vaclav Havel Airport (PRG) to Kos Island Intl. Airport (KGS) cost?
Snag a cheap one-way flight from $133 or cheap return flight from $327 from Vaclav Havel Airport (PRG) to Kos Island Intl. Airport (KGS) with Expedia. Enter your travel dates and sort by "Price (lowest to highest)" to see our cheapest flight offers on this route.
What is the cheapest month to fly from Vaclav Havel Airport (PRG) to Kos Island Intl. Airport (KGS)?
October is the least expensive month to fly from PRG to KGS. Traveling during an off-peak travel window is often the key to finding better deals on flights.
What is the cheapest airline that flies from Vaclav Havel Airport (PRG) to Kos Island Intl. Airport (KGS)?
Use the filter tool on Expedia to compare different airlines and find the cheapest carrier that'll fly you from PRG to KGS. Then, sort your results by "Price (lowest to highest)" to snag a great deal.
How many flights per day from Vaclav Havel Airport (PRG) to Kos Island Intl. Airport (KGS)?
You'll have to catch a flight with a layover when traveling from Vaclav Havel Airport (PRG) to Kos Island Intl. Airport (KGS). There are no daily direct flights on this route. However, just filter your search to include one or more stops to discover an option that works for you.
What day of the week has the most flights from PRG to KGS?
Typically you'll find the most flight options available on a Friday. Tuesdays tend to be the quietest.* However, this can vary depending on the season, 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 Vaclav Havel Airport (PRG) to Kos Island Intl. Airport (KGS)?
Choose a flight from Vaclav Havel Airport (PRG) to Kos Island Intl. Airport (KGS) that leaves before 3 PM to reduce the risk of cancellations and delays. Later departures have a 22% higher chance of being canceled, on average.**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 Vaclav Havel Airport (PRG) to Kos Island Intl. Airport (KGS) last-minute?
Last-minute bookings from PRG to KGS are typically more expensive. To secure the cheapest rates, start looking for flights as early as possible. That said, if you're flexible with your travel plans, it's possible to score a cheap fare right before your journey.
Is it cheaper to book a PRG to KGS flight and hotel package?
Compared with arranging hotels and flights separately, booking a PRG to KGS flight and hotel package with Expedia could result in significant savings. Better yet, managing everything in one place takes the hassle out of planning your trip. Simply secure your flights and choose from our wide range of stays, then tailor your trip with other add-ons like tours, activities and car rentals.
Can I cancel or change the date of my flight from Vaclav Havel Airport (PRG) to Kos Island Intl. Airport (KGS)?
In most cases, you're able to reschedule or cancel your PRG to KGS flight. However, there may be additional fees, especially if your booking was made more than 24 hours ago. Double-check your itinerary for the airline's fees and guidelines on flight changes, or if you'd like further information, go to our Customer Service portal.

Travel information

Travel information

Origin airport
Vaclav Havel
Destination airport
Kos Island Intl.
Airlines serving
Austrian Airlines, British Airways, Condor, Lufthansa, SKY express, Smartwings, Swiss International Air Lines
Roundtrip price
$327
Distance
1118 mi
Average flight time
3 hours 46 mins

Book with confidence

Book with confidence

Prague to Kos Flights

The cheapest times to fly from Prague 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 Prague to Kos are during the month of October. You can find some of the cheapest flights from Prague to Kos with Expedia's search tool and vast selection of airlines.

 

The best time to book a flight from Prague to Kos

Sunday is one of the best days to book for cheap flights from Prague 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 Prague 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 Prague to Kos in 2025. You can also book with separate airlines for your outbound and return journeys, from $133 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 Prague 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 Prague 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.

 

Prague to Kos Flights

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*Available to One Key members.