$93 Cheap Flights from Kos (KGS) to Cologne (CGN)

Popular airlines from Kos (KGS-Kos Island Intl.) to Cologne - Bonn Airport (CGN)

Cheap Flights from Kos to Cologne (KGS-CGN)

Prices were available within the past 7 days and start at $93 for one-way flights and $232 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Eurowings
Eurowings
Eurowings
Aegean
Eurowings
Eurowings
Eurowings
Eurowings
Austrian Airlines
Aegean
Flights from Kos (KGS) to Cologne (CGN)
Origin airport
Kos Island Intl.
Destination airport
Cologne - Bonn
Airlines serving
Aegean, Austrian Airlines, Eurowings, Lufthansa
Roundtrip price
$231
Distance
1383 mi
Average flight time
3 hours 25 mins

Kos to Cologne Flights

The cheapest times to fly from Kos to Cologne

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

 

The best time to book a flight from Kos to Cologne

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

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 Cologne in 2025. You can also book with separate airlines for your outbound and return journeys, from $93 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 Cologne 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 Cologne 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 Cologne - Bonn Airport (CGN) cost?
Pick up cheap return fares starting from $401 from Kos Island Intl. Airport (KGS) to Cologne - Bonn Airport (CGN). This information is based on the cheapest price found on Expedia for this return journey departing within the next three months. This airfare is for a Eurowings flight leaving KGS on August 13 2025 and touching down at CGN. The price was last updated on July 23 2025 and has not changed since.
What is the cheapest month to fly from KGS to CGN?
The cheapest flights from KGS to CGN are usually during off-peak season, when demand is lower. To save money, avoid flying during public holidays, school breaks and major local events.
What is the cheapest airline that flies from KGS to CGN?
At the moment, the cheapest carrier operating one-way flights from KGS to CGN is Eurowings. You can jet off on this route from $118. This fare is based on the lowest price found on Expedia departing within the next three months. The flight takes off from KGS on August 27 2025. Prices were last updated on July 23 2025 and have not changed since.
How many flights per day from Kos Island Intl. Airport (KGS) to Cologne - Bonn Airport (CGN)?
You'll have to hop on a flight with a layover when traveling from Kos Island Intl. Airport (KGS) to Cologne - Bonn Airport (CGN). There are no daily direct flights on this route. However, simply filter your search to include one or two stops to discover the best option for your trip.
What day of the week has the most flights from KGS to CGN?
Generally you'll find the widest variety of flight choices on a Friday. Tuesdays are often the quietest.* However, this can change based on the airline, season 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 Kos Island Intl. Airport (KGS) to Cologne - Bonn Airport (CGN)?
To touch down at Cologne - Bonn Airport (CGN) on time, choose a flight that leaves Kos Island Intl. Airport (KGS) before 3 PM. The chance 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 Cologne - Bonn Airport (CGN) last-minute?
Booking your ticket from KGS to CGN just before your getaway is typically more expensive. But if you're flexible with your itinerary, you could bag a cheap last-minute fare.
Is it cheaper to book a KGS to CGN flight and hotel package?
Compared with arranging flights and hotels separately, booking a KGS to CGN flight and hotel package with Expedia could result in significant savings. Better yet, managing everything in one place will take the hassle out of travel planning. Just pick your flights and choose from our extensive range of stays, then customize your trip with other add-ons like activities and car rentals.
Can I cancel or change the date of my flight from Kos Island Intl. Airport (KGS) to Cologne - Bonn Airport (CGN)?
It's usually possible to reschedule or cancel your KGS to CGN flight. However, for bookings made more than 24 hours ago, additional charges may apply. Check your airline's policies in your itinerary to see what changes are possible and if any costs are involved. You'll also find more information on our Customer Service portal.

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*Available to One Key members.