$155 Cheap Flights from Florence (FLR) to Kos (KGS)

View $155 flight on Thu, Jun 5, 2025Opens in a new window

Popular airlines from Florence Airport, Peretola (FLR) to Kos (KGS-Kos Island Intl.)

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Find available prices by choosing your travel dates.

Cheap Flights from Florence to Kos (FLR-KGS)

Prices were available within the past 7 days and start at $155 for one-way flights and $236 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Lufthansa
Thu, Jun 5 - Thu, Jun 12
FLR
Florence
KGS
Kos
$236 Roundtrip, found 5 days ago
$236
Roundtrip
found 5 days ago
Select Lufthansa flight, departing Thu, Jun 5 from Florence to Kos, returning Thu, Jun 12, priced at $236 found 5 days ago
Lufthansa
Thu, Jun 5 - Thu, Jun 12
FLR
Florence
KGS
Kos
$247 Roundtrip, found 5 days ago
$247
Roundtrip
found 5 days ago
Select Lufthansa flight, departing Thu, Jun 5 from Florence to Kos, returning Thu, Jun 12, priced at $247 found 5 days ago
Brussels Airlines
Sat, Jun 21 - Sat, Jun 28
FLR
Florence
KGS
Kos
$249 Roundtrip, found 5 days ago
$249
Roundtrip
found 5 days ago
Select Brussels Airlines flight, departing Sat, Jun 21 from Florence to Kos, returning Sat, Jun 28, priced at $249 found 5 days ago
Lufthansa
Thu, Jun 5 - Thu, Jun 12
FLR
Florence
KGS
Kos
$254 Roundtrip, found 5 days ago
$254
Roundtrip
found 5 days ago
Select Lufthansa flight, departing Thu, Jun 5 from Florence to Kos, returning Thu, Jun 12, priced at $254 found 5 days ago
Lufthansa
Thu, Jun 5 - Thu, Jun 12
FLR
Florence
KGS
Kos
$265 Roundtrip, found 5 days ago
$265
Roundtrip
found 5 days ago
Select Lufthansa flight, departing Thu, Jun 5 from Florence to Kos, returning Thu, Jun 12, priced at $265 found 5 days ago
Lufthansa
Thu, Jun 5 - Thu, Jun 12
FLR
Florence
KGS
Kos
$304 Roundtrip, found 5 days ago
$304
Roundtrip
found 5 days ago
Select Lufthansa flight, departing Thu, Jun 5 from Florence to Kos, returning Thu, Jun 12, priced at $304 found 5 days ago
Lufthansa
Thu, Jun 5 - Thu, Jun 12
FLR
Florence
KGS
Kos
$315 Roundtrip, found 5 days ago
$315
Roundtrip
found 5 days ago
Select Lufthansa flight, departing Thu, Jun 5 from Florence to Kos, returning Thu, Jun 12, priced at $315 found 5 days ago
Aegean
Sat, Jun 21 - Sat, Jun 28
FLR
Florence
KGS
Kos
$351 Roundtrip, found 5 days ago
$351
Roundtrip
found 5 days ago
Select Aegean flight, departing Sat, Jun 21 from Florence to Kos, returning Sat, Jun 28, priced at $351 found 5 days ago
Air Dolomiti
Thu, Jun 5 - Thu, Jun 12
FLR
Florence
KGS
Kos
$353 Roundtrip, found 5 days ago
$353
Roundtrip
found 5 days ago
Select Air Dolomiti flight, departing Thu, Jun 5 from Florence to Kos, returning Thu, Jun 12, priced at $353 found 5 days ago
Swiss International Air Lines
Sat, Jun 21 - Sat, Jun 28
FLR
Florence
KGS
Kos
$362 Roundtrip, found 5 days ago
$362
Roundtrip
found 5 days ago
Select Swiss International Air Lines flight, departing Sat, Jun 21 from Florence to Kos, returning Sat, Jun 28, priced at $362 found 5 days ago
Flights from Florence (FLR) to Kos (KGS)
Origin airport
Peretola
Destination airport
Kos Island Intl.
Airlines serving
Lufthansa, Swiss International Air Lines
Roundtrip price
$236
Distance
964 mi

Florence to Kos Flights

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

 

The best time to book a flight from Florence to Kos

Sunday is one of the best days to book for cheap flights from Florence 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 Florence 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 Florence to Kos in 2025. You can also book with separate airlines for your outbound and return journeys, from $155 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 Florence 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 Florence 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 Peretola Airport (FLR) to Kos Island Intl. Airport (KGS) cost?
Discover the latest flight deals from FLR to KGS by entering your preferred travel dates and searching on Expedia. Easily compare prices by departure date if you have flexibility with your schedule and use handy filters to explore prices for your preferred journey. As a member of One Key™, our free loyalty program, you can use Price Tracking to watch fares and receive notifications if prices go up or down.
What is the cheapest month to fly from FLR to KGS?
The cheapest flights from FLR to KGS 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 FLR to KGS?
Use the filter tool on Expedia to compare airlines and find the cheapest carrier that’ll take you from FLR to KGS. Sort your results by “Price (lowest to highest)” to snap up a great deal.
How many flights per day from Peretola Airport (FLR) to Kos Island Intl. Airport (KGS)?
There are no daily direct flights from Peretola Airport (FLR) to Kos Island Intl. Airport (KGS). But you can book flights with layovers. Filter your search results on Expedia to include one or more stops, and you’ll be cruising above the clouds before you know it.
What day of the week has the most flights from FLR to KGS?
Usually you’ll find the largest variety of flight choices on a Friday. Tuesdays are often the quietest.* But this can change depending on the time of year, carrier 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 Peretola Airport (FLR) to Kos Island Intl. Airport (KGS)?
To arrive at Kos Island Intl. Airport (KGS) without delays, opt for a flight that takes off from Peretola Airport (FLR) 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 Peretola Airport (FLR) to Kos Island Intl. Airport (KGS) last-minute?
Booking your ticket from FLR to KGS just before your journey is generally more expensive. However, if there’s some wiggle room with your departure times and dates, you could bag a cheap last-minute fare.
Is it cheaper to book a FLR to KGS flight and hotel package?
You’ll generally save money by booking a FLR to KGS flight and hotel package compared to booking separately. In fact, you could save hundreds of dollars by bundling with Expedia. And it’s easy to manage it all in one convenient place. Once you’ve selected your preferred flights and accommodations, you can add extras like tours, car rentals and activities.
Can I cancel or change the date of my flight from Peretola Airport (FLR) to Kos Island Intl. Airport (KGS)?
In most instances, you’re able to cancel or reschedule your FLR to KGS flight. However, additional charges may apply, especially if you made your booking over 24 hours ago. Double-check your itinerary for the airline’s policies and fees on flight changes, or if you’d like further information, head to our Customer Service portal.

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*Available to One Key members.