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£100 Cheap Flights from Frankfurt (FRA) to Kos (KGS)

View £100 flight on Mon, 12 Oct 2026Opens in a new window

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

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

Prices were available within the past 7 days and start at £100 for one-way flights and £243 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Condor
Thu, 20 Aug - Tue, 25 Aug
FRA
Frankfurt
KGS
Kos
£243 Return, found 3 days ago
£243
Return
found 3 days ago
Select Condor flight, departing Thu, 20 Aug from Frankfurt to Kos, returning Tue, 25 Aug, priced at £243 found 3 days ago
Condor
Mon, 12 Oct - Mon, 19 Oct
FRA
Frankfurt
KGS
Kos
£262 Return, found 2 days ago
£262
Return
found 2 days ago
Select Condor flight, departing Mon, 12 Oct from Frankfurt to Kos, returning Mon, 19 Oct, priced at £262 found 2 days ago
Condor
Mon, 12 Oct - Mon, 19 Oct
FRA
Frankfurt
KGS
Kos
£266 Return, found 2 days ago
£266
Return
found 2 days ago
Select Condor flight, departing Mon, 12 Oct from Frankfurt to Kos, returning Mon, 19 Oct, priced at £266 found 2 days ago
Swiss International Air Lines
Thu, 20 Aug - Tue, 25 Aug
FRA
Frankfurt
KGS
Kos
£268 Return, found 3 days ago
£268
Return
found 3 days ago
Select Swiss International Air Lines flight, departing Thu, 20 Aug from Frankfurt to Kos, returning Tue, 25 Aug, priced at £268 found 3 days ago
Swiss International Air Lines
Fri, 21 Aug - Tue, 25 Aug
FRA
Frankfurt
KGS
Kos
£269 Return, found 6 days ago
£269
Return
found 6 days ago
Select Swiss International Air Lines flight, departing Fri, 21 Aug from Frankfurt to Kos, returning Tue, 25 Aug, priced at £269 found 6 days ago
Condor
Wed, 14 Oct - Wed, 21 Oct
FRA
Frankfurt
KGS
Kos
£272 Return, found 2 days ago
£272
Return
found 2 days ago
Select Condor flight, departing Wed, 14 Oct from Frankfurt to Kos, returning Wed, 21 Oct, priced at £272 found 2 days ago
Condor
Mon, 12 Oct - Mon, 19 Oct
FRA
Frankfurt
KGS
Kos
£274 Return, found 2 days ago
£274
Return
found 2 days ago
Select Condor flight, departing Mon, 12 Oct from Frankfurt to Kos, returning Mon, 19 Oct, priced at £274 found 2 days ago
SKY express
Sat, 15 May - Tue, 25 May
FRA
Frankfurt
KGS
Kos
£276 Return, found 4 days ago
£276
Return
found 4 days ago
Select SKY express flight, departing Sat, 15 May from Frankfurt to Kos, returning Tue, 25 May, priced at £276 found 4 days ago
Aegean
Sun, 27 Sept - Sun, 4 Oct
FRA
Frankfurt
KGS
Kos
£283 Return, found 4 days ago
£283
Return
found 4 days ago
Select Aegean flight, departing Sun, 27 Sept from Frankfurt to Kos, returning Sun, 4 Oct, priced at £283 found 4 days ago
Austrian Airlines
Thu, 20 Aug - Tue, 25 Aug
FRA
Frankfurt
KGS
Kos
£299 Return, found 3 days ago
£299
Return
found 3 days ago
Select Austrian Airlines flight, departing Thu, 20 Aug from Frankfurt to Kos, returning Tue, 25 Aug, priced at £299 found 3 days ago

Find the cheapest month to fly from Frankfurt (FRA) to Kos (KGS)

February is typically the cheapest month to fly

From £134 - £269 per traveller.

Frequently asked questions

How much does a flight from Frankfurt (FRA-Frankfurt Intl.) to Kos (KGS-Kos Island Intl.) cost?
You can find one-way and return flights from FRA to KGS with Expedia. Flight prices vary based on the month and day of the week you want to travel, as well as the airline and how far in advance you book your ticket. Filter your search on Expedia by "Price (lowest to highest)" to see our cheapest fares first, and use the Price Tracking tool to receive alerts when FRA to KGS ticket fares go up or down.
What is the cheapest month to fly from Frankfurt (FRA-Frankfurt Intl.) to Kos (KGS-Kos Island Intl.)?
The cheapest months to fly from FRA to KGS are typically during off-peak season when demand is low. Traveling in off-peak or shoulder months is usually a good way to secure cheap tickets, just remember to avoid flying during holidays if you are able to. Use the calendar view in your search to see which months have low fares on this route.
Which airlines fly direct from Frankfurt (FRA) to Kos (KGS)?
Enter FRA to KGS and your travel dates, then apply the 'Nonstop' filter to see only direct flights.
What is the cheapest airline that flies from Frankfurt (FRA-Frankfurt Intl.) to Kos (KGS-Kos Island Intl.)?
TUI Charter also offers one of the cheapest connecting return flights on this route, with tickets starting from around £354. TUI Charter is one of the cheapest airlines offering nonstop return flights from Frankfurt (FRA-Frankfurt Intl.) to Kos (KGS-Kos Island Intl.), with tickets starting from around £452 for flights that can be booked for departure within the next year. These prices are for economy/coach class per adult. Use Expedia's search tool to compare the prices and schedules of airlines that fly this route to find the best option for your plans and budget.
How do I find cheap flights from Frankfurt (FRA-Frankfurt Intl.) to Kos (KGS-Kos Island Intl.)?
To find a cheap flight from Frankfurt (FRA-Frankfurt Intl.) to Kos (KGS-Kos Island Intl.), be flexible with your dates. Traveling outside of peak vacation months and booking a mid-week flight can help you save. Early morning and late night flights are often more affordable, too. Expedia allows you to compare flight times, airlines and routes all in one place to find low fares. You can also set up Price Tracking and receive alerts when fares go up or down.
What is the best airline to fly with from Frankfurt (FRA-Frankfurt Intl.) to Kos (KGS-Kos Island Intl.)?
The best airline to fly with from Frankfurt (FRA-Frankfurt Intl.) to Kos (KGS-Kos Island Intl.) will differ from traveler to traveler. If you like to fly early, Discover Airlines offers early morning flights. If price is the most important factor, Discover Airlines typically offers the lowest fares. Lufthansa offers the most daily flights from Frankfurt (FRA-Frankfurt Intl.) to Kos (KGS-Kos Island Intl.), which is great if flexibility is what you value most. The best carrier for this journey could also be the one you have a loyalty membership with, as flying with that airline or another airline within the same alliance could help you collect points or enjoy lounge access.
What is the best time to fly from Frankfurt (FRA-Frankfurt Intl.) to Kos (KGS-Kos Island Intl.)?
The best time to fly is usually mid-week (Tuesday or Wednesday) and during early morning hours as flights tend to be cheaper, less crowded, and generally more on-time. Avoid major holidays and peak vacation seasons for smoother travel. Combining off-peak days and hours often gives the best combination of cost, comfort, and convenience.
How many flights per day from Frankfurt (FRA-Frankfurt Intl.) to Kos (KGS-Kos Island Intl.)?
There is 1 nonstop flight per day from Frankfurt (FRA-Frankfurt Intl.) to Kos (KGS-Kos Island Intl.). For even more choices, look at flights that include layovers, as there are around 40 connecting flights per day. Some common connection points include Macedonia (SKG), Eleftherios Venizelos (ATH), and Vienna Intl. (VIE).
What is the earliest flight from Frankfurt (FRA) to Kos (KGS)?
Sort flights by "Departure (earliest)" on Expedia to find the earliest flight from Frankfurt (FRA) to Kos (KGS). To compare more early flights, use the "Early Morning" and "Morning" filters in your search.
What day of the week has the most flights from Frankfurt (FRA-Frankfurt Intl.) to Kos (KGS-Kos Island Intl.)?
You'll typically find the most flights from Frankfurt (FRA-Frankfurt Intl.) to Kos (KGS-Kos Island Intl.) on a Saturday, with around 35 flights available. This gives you plenty of options for your travel plans. Major airlines on this route include Lufthansa, Austrian Airlines, and Aegean. Saturday offers notably more flight options compared to other days of the week, so if you're looking for flexibility, this is a great day to consider flying.
What are the most popular departure times for flights from Frankfurt (FRA-Frankfurt Intl.) to Kos (KGS-Kos Island Intl.)?
The most popular departure times for flights from Frankfurt (FRA-Frankfurt Intl.) to Kos (KGS-Kos Island Intl.) are between 9am and 12pm. Many major carriers, including Aegean, Lufthansa and Austrian Airlines, offer flights during this window. Many travellers prefer these morning flights as they allow for an early arrival at your destination, giving you more time to enjoy your trip.
How long does it take to fly from Frankfurt (FRA-Frankfurt Intl.) to Kos (KGS-Kos Island Intl.)?
Direct flights from FRA to KGS usually take about 3 hours, traveling roughly 2,089 kilometers. If you opt for a connecting flight, expect to add around 2 hours 50 minutes to your journey. Keep in mind that actual flight times can vary due to wind patterns, weather, and air traffic.
Can you fly business or first class from Frankfurt (FRA-Frankfurt Intl.) to Kos (KGS-Kos Island Intl.)?
Yes, you can fly business class between FRA and KGS. Airlines that offer business class service on this route include:
  • Swiss International Air Lines
  • Air Baltic
  • Lufthansa
  • Discover Airlines
  • Brussels Airlines
  • Aegean
  • Lufthansa Cityline
  • Condor
  • Austrian Airlines
How do I earn miles on a Frankfurt (FRA) to Kos (KGS) flight with Expedia?
It's easy to earn miles on a Frankfurt (FRA) to Kos (KGS) flight when you book with Expedia. Before you confirm your booking, simply select your frequent flyer program and enter your program number. As a member of One Key™, you can also earn OneKeyCash™* on top of your airline miles when you book with Expedia.*Excludes taxes and fees. OneKeyCash is not redeemable for cash and can only be used on Expedia and other participating brands.
Is it cheaper to buy a plane ticket from Frankfurt (FRA) to Kos (KGS) at the last minute?
Typically, booking a last minute flight from Frankfurt (FRA) to Kos (KGS) will be more expensive than booking in advance. As the departure date approaches, there are usually fewer seats available which can drive up the cost. However, if there's some wiggle room with your travel dates and times, you could bag a cheap last-minute fare.
Is it cheaper to book a Frankfurt (FRA) to Kos (KGS) flight and hotel package?
Securing a Frankfurt (FRA) to Kos (KGS) flight and hotel package is usually cheaper than booking separately. With Expedia, you can enjoy the ease of organizing your travels all in one place. Select from our extensive range of stays and then add flights, activities and car rentals to your booking. Bundle everything together, and you could save hundreds of dollars.
Can I cancel or change the date of my flight from Frankfurt (FRA-Frankfurt Intl.) to Kos (KGS-Kos Island Intl.)?
If you booked your Frankfurt (FRA-Frankfurt Intl.) to Kos (KGS-Kos Island Intl.) flight within the last 24 hours, you may be able to modify or cancel it without any fees. Depending on the airline and the type of ticket you have, additional charges may apply for changes beyond this timeframe. Airline policies and contact information can be found in your itinerary or confirmation email. Or, head to our Customer Service portal if you'd like more information.

Travel information

Origin airport
Frankfurt Intl.
Destination airport
Kos Island Intl.
Return price
£243
Distance
2076 km
Average flight time
4 hours 5 mins

Book with confidence

Compare flights from Frankfurt to Kos easily and book with confidence

For travelling on business or for pleasure, Expedia makes it easy to book your flights from Frankfurt to Kos. Operating between them flights per day, 20 airlines cover the route. And fly direct, getting you to Kos Island Intl. in just hours. If you have a preferred carrier, use our advanced search tool to find the right flight from Frankfurt Intl. to Kos Island Intl..  

To make things even better, in the advanced search, you can also choose to fly economy, premium economy, business or first class, select your maximum number of stops, and pick your preferred departure and arrival time. You can also opt for refundable and direct flights. 

Grab a great deal on your flight from Frankfurt Intl. (FRA) to Kos Island Intl. (KGS)

The easiest way to view the best deals on flights from Frankfurt to Kos today is to enter your travel dates and hit search. From here, you can sort your results by price to see the cheapest flights first. Right now, return flights from Frankfurt Intl. to Kos Island Intl. start at just £243 and range up to £299.  

To find an even better deal, try  

  • being flexible on your dates – midweek flights can be cheaper
  • looking for other airports near Frankfurt and Kos
  • booking your flight during August, the cheapest month on this route
  • varying your flight times – early morning and late at night are sometimes cheaper 

Why you should book your Frankfurt to Kos flight with Expedia!

We cater for all flight types, cabin classes and airlines. So whether you’re booking flights from Frankfurt Intl. to Kos Island Intl. for a budget break or a business trip with a bit of pleasure thrown in, we make it easy to secure the seat that’s right for you.  

Thanks to our supersized inventory that offers great choice all in one place, you know you’ll get a great deal with Expedia. Especially if you bundle your flight together with your hotel, you will unlock amazing savings. For added peace of mind, you can choose flexible bookings or filter to find refundable options, so you won’t pay a fee to change your flight.  

Compare flights from Frankfurt to Kos easily and book with confidence

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*Available to Expedia members.