$276 Cheap Flights from Trieste (TRS) to Kos (KGS)

View $276 flight on Sat, Jul 25, 2026Opens in a new window

Popular airlines from Friuli Venezia Giulia Airport (TRS) to Kos (KGS-Kos Island Intl.)

Cheap Flights from Trieste to Kos (TRS-KGS)

Prices were available within the past 7 days and start at $276 for one-way flights and $466 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

ITA Airways
Tue, Aug 18 - Tue, Aug 25
TRS
Trieste
KGS
Kos
$466 Roundtrip, found 2 days ago
$466
Roundtrip
found 2 days ago
Select ITA Airways flight, departing Tue, Aug 18 from Trieste to Kos, returning Tue, Aug 25, priced at $466 found 2 days ago
Lufthansa
Sat, Jul 25 - Thu, Aug 6
TRS
Trieste
KGS
Kos
$487 Roundtrip, found 4 days ago
$487
Roundtrip
found 4 days ago
Select Lufthansa flight, departing Sat, Jul 25 from Trieste to Kos, returning Thu, Aug 6, priced at $487 found 4 days ago
Air Dolomiti
Sat, Jul 25 - Thu, Aug 6
TRS
Trieste
KGS
Kos
$489 Roundtrip, found 4 days ago
$489
Roundtrip
found 4 days ago
Select Air Dolomiti flight, departing Sat, Jul 25 from Trieste to Kos, returning Thu, Aug 6, priced at $489 found 4 days ago
ITA Airways
Sat, Jul 25 - Thu, Aug 6
TRS
Trieste
KGS
Kos
$492 Roundtrip, found 4 days ago
$492
Roundtrip
found 4 days ago
Select ITA Airways flight, departing Sat, Jul 25 from Trieste to Kos, returning Thu, Aug 6, priced at $492 found 4 days ago
ITA Airways
Tue, Aug 18 - Tue, Aug 25
TRS
Trieste
KGS
Kos
$494 Roundtrip, found 2 days ago
$494
Roundtrip
found 2 days ago
Select ITA Airways flight, departing Tue, Aug 18 from Trieste to Kos, returning Tue, Aug 25, priced at $494 found 2 days ago
Lufthansa
Tue, Aug 18 - Tue, Aug 25
TRS
Trieste
KGS
Kos
$505 Roundtrip, found 2 days ago
$505
Roundtrip
found 2 days ago
Select Lufthansa flight, departing Tue, Aug 18 from Trieste to Kos, returning Tue, Aug 25, priced at $505 found 2 days ago
Lufthansa
Sat, Jul 25 - Thu, Aug 6
TRS
Trieste
KGS
Kos
$520 Roundtrip, found 4 days ago
$520
Roundtrip
found 4 days ago
Select Lufthansa flight, departing Sat, Jul 25 from Trieste to Kos, returning Thu, Aug 6, priced at $520 found 4 days ago
Air Dolomiti
Sat, Jul 25 - Thu, Aug 6
TRS
Trieste
KGS
Kos
$522 Roundtrip, found 4 days ago
$522
Roundtrip
found 4 days ago
Select Air Dolomiti flight, departing Sat, Jul 25 from Trieste to Kos, returning Thu, Aug 6, priced at $522 found 4 days ago
ITA Airways
Sat, Jul 25 - Thu, Aug 6
TRS
Trieste
KGS
Kos
$536 Roundtrip, found 4 days ago
$536
Roundtrip
found 4 days ago
Select ITA Airways flight, departing Sat, Jul 25 from Trieste to Kos, returning Thu, Aug 6, priced at $536 found 4 days ago
ITA Airways
Tue, Aug 18 - Tue, Aug 25
TRS
Trieste
KGS
Kos
$551 Roundtrip, found 2 days ago
$551
Roundtrip
found 2 days ago
Select ITA Airways flight, departing Tue, Aug 18 from Trieste to Kos, returning Tue, Aug 25, priced at $551 found 2 days ago

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Frequently asked questions

How much does a flight from Friuli Venezia Giulia Airport (TRS) to Kos Island Intl. Airport (KGS) cost?
Secure a cheap one-way flight from $276 or cheap return flight from $466 from Friuli Venezia Giulia Airport (TRS) to Kos Island Intl. Airport (KGS) 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 Friuli Venezia Giulia Airport (TRS) to Kos Island Intl. Airport (KGS)?
The cheapest month to fly from TRS to KGS is August, 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 Friuli Venezia Giulia Airport (TRS) to Kos Island Intl. Airport (KGS)?
To find the cheapest airline flying from TRS to KGS, use Expedia's filter tool. Customize your search based on your travel style, such as preferred carriers and cabin class. You can then sort your results by "Price (lowest to highest)" to see the cheapest fares upfront.
How many flights per day from Friuli Venezia Giulia Airport (TRS) to Kos Island Intl. Airport (KGS)?
There are no daily nonstop flights from Friuli Venezia Giulia Airport (TRS) to Kos Island Intl. Airport (KGS). But you can opt for flights with layovers. Filter your search results on Expedia to include one or two stops, and you'll be soaring above the clouds before you know it.
What day of the week has the most flights from TRS to KGS?
Usually you'll find the largest variety of flight choices on a Friday. Tuesdays are often the quietest.* But this can change based 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 Friuli Venezia Giulia Airport (TRS) to Kos Island Intl. Airport (KGS)?
To arrive at Kos Island Intl. Airport (KGS) on time, select a flight that leaves from Friuli Venezia Giulia Airport (TRS) 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 Friuli Venezia Giulia Airport (TRS) to Kos Island Intl. Airport (KGS) last-minute?
Last-minute bookings from TRS to KGS are generally more expensive. To secure the best rates, start looking for flights well ahead of time. That said, if you're flexible with your travel dates, it's possible to score a cheap ticket right before your journey.
Is it cheaper to book a TRS to KGS flight and hotel package?
Compared with arranging flights and hotels separately, booking a TRS to KGS flight and hotel package with Expedia could result in significant savings. What's more, having everything in one convenient place will take the stress out of travel planning. Just secure your flights and select from our extensive range of stays, then personalize your trip with other add-ons like tours, car rentals and activities.
Can I cancel or change the date of my flight from Friuli Venezia Giulia Airport (TRS) to Kos Island Intl. Airport (KGS)?
Usually, it's possible to cancel or reschedule your TRS to KGS flight. However, for bookings made more than 24 hours ago, additional charges 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 further details on our Customer Service portal.

Travel information

Origin airport
Friuli Venezia Giulia
Destination airport
Kos Island Intl.
Roundtrip price
$466
Distance
939 mi

Book with confidence

Trieste to Kos Flights

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

 

The best time to book a flight from Trieste to Kos

Sunday is one of the best days to book for cheap flights from Trieste 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 Trieste 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 Trieste to Kos in 2026. You can also book with separate airlines for your outbound and return journeys, from $276 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 Trieste 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 Trieste 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.

 

Trieste to Kos Flights

*Flight schedules are subject to change.

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*Available to One Key members.