$85 Cheap Flights from Rome (FCO) to Kos (KGS)

View $85 flight on Fri, Feb 20, 2026Opens in a new window

Popular airlines from Fiumicino - Leonardo da Vinci Intl. Airport (FCO) to Kos (KGS-Kos Island Intl.)

Cheap Flights from Rome to Kos (FCO-KGS)

Prices were available within the past 7 days and start at $85 for one-way flights and $245 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Aegean
Mon, Dec 8 - Sun, Dec 14
FCO
Rome
KGS
Kos
$245 Roundtrip, found 5 days ago
$245
Roundtrip
found 5 days ago
Select Aegean flight, departing Mon, Dec 8 from Rome to Kos, returning Sun, Dec 14, priced at $245 found 5 days ago
Aegean
Mon, Dec 8 - Sun, Dec 14
FCO
Rome
KGS
Kos
$248 Roundtrip, found 5 days ago
$248
Roundtrip
found 5 days ago
Select Aegean flight, departing Mon, Dec 8 from Rome to Kos, returning Sun, Dec 14, priced at $248 found 5 days ago
Aegean
Mon, Dec 8 - Sun, Dec 14
FCO
Rome
KGS
Kos
$304 Roundtrip, found 5 days ago
$304
Roundtrip
found 5 days ago
Select Aegean flight, departing Mon, Dec 8 from Rome to Kos, returning Sun, Dec 14, priced at $304 found 5 days ago
Aegean
Mon, Dec 8 - Sun, Dec 14
FCO
Rome
KGS
Kos
$308 Roundtrip, found 5 days ago
$308
Roundtrip
found 5 days ago
Select Aegean flight, departing Mon, Dec 8 from Rome to Kos, returning Sun, Dec 14, priced at $308 found 5 days ago
SKY express
Sun, Jan 4 - Sun, Jan 11
FCO
Rome
KGS
Kos
$321 Roundtrip, found 4 days ago
$321
Roundtrip
found 4 days ago
Select SKY express flight, departing Sun, Jan 4 from Rome to Kos, returning Sun, Jan 11, priced at $321 found 4 days ago
Aegean
Sun, Jan 4 - Sun, Jan 11
FCO
Rome
KGS
Kos
$337 Roundtrip, found 4 days ago
$337
Roundtrip
found 4 days ago
Select Aegean flight, departing Sun, Jan 4 from Rome to Kos, returning Sun, Jan 11, priced at $337 found 4 days ago
SKY express
Sun, Jan 4 - Sun, Jan 11
FCO
Rome
KGS
Kos
$339 Roundtrip, found 4 days ago
$339
Roundtrip
found 4 days ago
Select SKY express flight, departing Sun, Jan 4 from Rome to Kos, returning Sun, Jan 11, priced at $339 found 4 days ago
Aegean
Sun, Jan 4 - Sun, Jan 11
FCO
Rome
KGS
Kos
$353 Roundtrip, found 4 days ago
$353
Roundtrip
found 4 days ago
Select Aegean flight, departing Sun, Jan 4 from Rome to Kos, returning Sun, Jan 11, priced at $353 found 4 days ago
SKY express
Sun, Jan 4 - Sun, Jan 11
FCO
Rome
KGS
Kos
$356 Roundtrip, found 4 days ago
$356
Roundtrip
found 4 days ago
Select SKY express flight, departing Sun, Jan 4 from Rome to Kos, returning Sun, Jan 11, priced at $356 found 4 days ago
ITA Airways
Mon, Dec 8 - Sun, Dec 14
FCO
Rome
KGS
Kos
$370 Roundtrip, found 5 days ago
$370
Roundtrip
found 5 days ago
Select ITA Airways flight, departing Mon, Dec 8 from Rome to Kos, returning Sun, Dec 14, priced at $370 found 5 days ago

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Flights from Rome (FCO) to Kos (KGS)
Origin airport
Fiumicino - Leonardo da Vinci Intl.
Destination airport
Kos Island Intl.
Roundtrip price
$244
Distance
863 mi

Rome to Kos Flights

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

 

The best time to book a flight from Rome to Kos

Sunday is one of the best days to book for cheap flights from Rome 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 Rome 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 Rome to Kos in 2025. You can also book with separate airlines for your outbound and return journeys, from $85 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 Rome 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 Rome 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 Fiumicino - Leonardo da Vinci Intl. Airport (FCO) to Kos Island Intl. Airport (KGS) cost?
Snag a cheap one-way flight from $85 or cheap return flight from $245 from Fiumicino - Leonardo da Vinci Intl. Airport (FCO) 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 Fiumicino - Leonardo da Vinci Intl. Airport (FCO) to Kos Island Intl. Airport (KGS)?
The cheapest month to fly from FCO to KGS is December, when there's less demand. Off-peak season is generally when better flight deals are available between these airports.
What is the cheapest airline that flies from Fiumicino - Leonardo da Vinci Intl. Airport (FCO) to Kos Island Intl. Airport (KGS)?
To find the cheapest airline flying from FCO to KGS, use Expedia's filter tool. Customize your search based on your travel needs, such as preferred carriers and ideal departure window. You can then sort your results by "Price (lowest to highest)" to see the cheapest fares upfront.
How many flights per day from Fiumicino - Leonardo da Vinci Intl. Airport (FCO) to Kos Island Intl. Airport (KGS)?
Direct flights from Fiumicino - Leonardo da Vinci Intl. Airport (FCO) to Kos Island Intl. Airport (KGS) aren't available daily, so you'll need to take a flight with a layover. Explore your options with Expedia's filter tool. Enter your travel dates and choose either "1 Stop" or "2+ Stops."
What day of the week has the most flights from FCO to KGS?
Friday is typically the busiest day for flights, while Tuesday tends to be the quietest.* Keep in mind that flight schedules can vary depending on a number of factors, including the carrier and season.*Busiest/quietest day to travel is based on Expedia flight demand through January to December 2024.
What is the best time to fly from Fiumicino - Leonardo da Vinci Intl. Airport (FCO) to Kos Island Intl. Airport (KGS)?
To land at Kos Island Intl. Airport (KGS) on time, book a flight that leaves Fiumicino - Leonardo da Vinci Intl. Airport (FCO) before 3 PM. The likelihood 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 Fiumicino - Leonardo da Vinci Intl. Airport (FCO) to Kos Island Intl. Airport (KGS) last-minute?
Waiting until right before your break to book your flight from FCO to KGS often results in higher prices. While you may come across some last-minute discounts, they aren't always guaranteed. Keep your travel schedule open for the best chance of snagging a bargain.
Is it cheaper to book a FCO to KGS flight and hotel package?
You'll generally save money by securing a FCO 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 simple to manage everything in one place. Once you've selected your preferred accommodations and flights, consider adding extras including activities, car rentals and tours.
Can I cancel or change the date of my flight from Fiumicino - Leonardo da Vinci Intl. Airport (FCO) to Kos Island Intl. Airport (KGS)?
Generally, it's possible to reschedule or cancel your FCO to KGS flight. However, for bookings made more than 24 hours ago, additional fees may apply. Refer to 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.