$120 Cheap Flights from Kos (KGS) to Frankfurt (FRA)

View $120 flight on Wed, Nov 12, 2025Opens in a new window

Popular airlines from Kos (KGS-Kos Island Intl.) to Frankfurt Airport (FRA)

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Cheap Flights from Kos to Frankfurt (KGS-FRA)

Prices were available within the past 7 days and start at $120 for one-way flights and $368 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Aegean
Tue, Nov 11 - Wed, Nov 19
KGS
Kos
FRA
Frankfurt
$368 Roundtrip, found 1 day ago
$368
Roundtrip
found 1 day ago
Select Aegean flight, departing Tue, Nov 11 from Kos to Frankfurt, returning Wed, Nov 19, priced at $368 found 1 day ago
Austrian Airlines
Wed, Oct 1 - Wed, Oct 8
KGS
Kos
FRA
Frankfurt
$386 Roundtrip, found 3 days ago
$386
Roundtrip
found 3 days ago
Select Austrian Airlines flight, departing Wed, Oct 1 from Kos to Frankfurt, returning Wed, Oct 8, priced at $386 found 3 days ago
Aegean
Tue, Nov 11 - Wed, Nov 19
KGS
Kos
FRA
Frankfurt
$396 Roundtrip, found 1 day ago
$396
Roundtrip
found 1 day ago
Select Aegean flight, departing Tue, Nov 11 from Kos to Frankfurt, returning Wed, Nov 19, priced at $396 found 1 day ago
Aegean
Tue, Nov 11 - Wed, Nov 19
KGS
Kos
FRA
Frankfurt
$397 Roundtrip, found 1 day ago
$397
Roundtrip
found 1 day ago
Select Aegean flight, departing Tue, Nov 11 from Kos to Frankfurt, returning Wed, Nov 19, priced at $397 found 1 day ago
Aegean
Tue, Nov 11 - Wed, Nov 19
KGS
Kos
FRA
Frankfurt
$401 Roundtrip, found 1 day ago
$401
Roundtrip
found 1 day ago
Select Aegean flight, departing Tue, Nov 11 from Kos to Frankfurt, returning Wed, Nov 19, priced at $401 found 1 day ago
Lufthansa
Wed, Oct 1 - Wed, Oct 8
KGS
Kos
FRA
Frankfurt
$406 Roundtrip, found 3 days ago
$406
Roundtrip
found 3 days ago
Select Lufthansa flight, departing Wed, Oct 1 from Kos to Frankfurt, returning Wed, Oct 8, priced at $406 found 3 days ago
Aegean
Tue, Nov 11 - Wed, Nov 19
KGS
Kos
FRA
Frankfurt
$409 Roundtrip, found 1 day ago
$409
Roundtrip
found 1 day ago
Select Aegean flight, departing Tue, Nov 11 from Kos to Frankfurt, returning Wed, Nov 19, priced at $409 found 1 day ago
Austrian Airlines
Fri, Oct 3 - Sat, Oct 4
KGS
Kos
FRA
Frankfurt
$419 Roundtrip, found 5 days ago
$419
Roundtrip
found 5 days ago
Select Austrian Airlines flight, departing Fri, Oct 3 from Kos to Frankfurt, returning Sat, Oct 4, priced at $419 found 5 days ago
Swiss International Air Lines
Wed, Oct 1 - Wed, Oct 8
KGS
Kos
FRA
Frankfurt
$463 Roundtrip, found 3 days ago
$463
Roundtrip
found 3 days ago
Select Swiss International Air Lines flight, departing Wed, Oct 1 from Kos to Frankfurt, returning Wed, Oct 8, priced at $463 found 3 days ago
Brussels Airlines
Fri, Oct 3 - Sat, Oct 4
KGS
Kos
FRA
Frankfurt
$619 Roundtrip, found 5 days ago
$619
Roundtrip
found 5 days ago
Select Brussels Airlines flight, departing Fri, Oct 3 from Kos to Frankfurt, returning Sat, Oct 4, priced at $619 found 5 days ago
Flights from Kos (KGS) to Frankfurt (FRA)
Origin airport
Kos Island Intl.
Destination airport
Frankfurt Intl.
Airlines serving
Aegean
Roundtrip price
$367
Distance
1297 mi
Average flight time
2 hours 20 mins

Kos to Frankfurt Flights

The cheapest times to fly from Kos to Frankfurt

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

 

The best time to book a flight from Kos to Frankfurt

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

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 Frankfurt in 2025. You can also book with separate airlines for your outbound and return journeys, from $120 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 Frankfurt 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 Frankfurt 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 Frankfurt Intl. Airport (FRA) cost?
Secure a cheap one-way flight from $120 or cheap return flight from $368 from Kos Island Intl. Airport (KGS) to Frankfurt Intl. Airport (FRA) 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 Frankfurt Intl. Airport (FRA)?
The cheapest month to fly from KGS to FRA is November, when demand is low. Off-peak months are typically when airlines offer better prices between these airports.
What is the cheapest airline that flies from Kos Island Intl. Airport (KGS) to Frankfurt Intl. Airport (FRA)?
To find the cheapest airline flying from KGS to FRA, use Expedia's filter tool. Tailor your search based on your travel style, such as preferred carriers and seat class. You can then sort your results by "Price (lowest to highest)" to see the cheapest fares upfront.
How many flights per day from Kos Island Intl. Airport (KGS) to Frankfurt Intl. Airport (FRA)?
You'll need to take a flight with a layover if you're traveling from Kos Island Intl. Airport (KGS) to Frankfurt Intl. Airport (FRA). Direct flights don't operate daily on this route. However, just 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 FRA?
You'll generally find Tuesday the quietest day for flights, while Fridays are often the busiest.* However this can vary from season to season and during public holidays or peak travel times.*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 Frankfurt Intl. Airport (FRA)?
To reach Frankfurt Intl. Airport (FRA) on schedule, pick a flight that leaves from Kos Island Intl. Airport (KGS) before 3 PM. The likelihood of cancellations is 22% higher, on average, for departures after this hour.**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 Frankfurt Intl. Airport (FRA) last-minute?
Holding off until just before your trip to book a ticket from KGS to FRA often results in higher prices. While it's possible to find some last-minute discounts, there's no guarantee. Keep your travel schedule open for the best chance of snagging a bargain.
Is it cheaper to book a KGS to FRA flight and hotel package?
You'll generally save money by booking a KGS to FRA flight and hotel package compared to booking separately. In fact, you could save hundreds of dollars by bundling with Expedia. And it's simple to manage it all in one convenient place. After choosing your ideal accommodations and flights, consider other add-ons like tours, activities and car rentals.
Can I cancel or change the date of my flight from Kos Island Intl. Airport (KGS) to Frankfurt Intl. Airport (FRA)?
If you booked your KGS to FRA flight within the last 24 hours, you may be able to modify or cancel it without any fees. Depending on the airline and the ticket type you purchased, additional charges may apply for changes beyond that time. Airline policies and contact information can be found in your itinerary or confirmation email. Or, go to our Customer Service portal for more details.

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*Available to One Key members.