$184 Cheap Flights from Cologne (CGN) to Trieste (TRS)

View $184 flight on Fri, Sep 19, 2025Opens in a new window

Popular airlines from Cologne - Bonn Airport (CGN) to Friuli Venezia Giulia Airport (TRS)

  • Plan, book, fly with confidence

  • trending down icon
    Be in the know
    Get alerts if flight prices drop or rise*
  • bex rewards loyalty icon
    Book smarter
    Save up to 30% on select hotels after you book a flight*
  • one key icon
    Earn twice
    Earn your airline miles on top of our OneKeyCash
    Learn about One Key

Cheap Flights from Cologne to Trieste (CGN-TRS)

Prices were available within the past 7 days and start at $184 for one-way flights and $323 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Lufthansa
Fri, Sep 19 - Thu, Sep 25
CGN
Cologne
TRS
Trieste
$323 Roundtrip, found 6 days ago
$323
Roundtrip
found 6 days ago
Select Lufthansa flight, departing Fri, Sep 19 from Cologne to Trieste, returning Thu, Sep 25, priced at $323 found 6 days ago
Lufthansa
Fri, Sep 19 - Thu, Sep 25
CGN
Cologne
TRS
Trieste
$333 Roundtrip, found 6 days ago
$333
Roundtrip
found 6 days ago
Select Lufthansa flight, departing Fri, Sep 19 from Cologne to Trieste, returning Thu, Sep 25, priced at $333 found 6 days ago
Lufthansa
Sat, Dec 27 - Sat, Jan 3
CGN
Cologne
TRS
Trieste
$338 Roundtrip, found 6 days ago
$338
Roundtrip
found 6 days ago
Select Lufthansa flight, departing Sat, Dec 27 from Cologne to Trieste, returning Sat, Jan 3, priced at $338 found 6 days ago
Lufthansa
Fri, Sep 19 - Thu, Sep 25
CGN
Cologne
TRS
Trieste
$342 Roundtrip, found 6 days ago
$342
Roundtrip
found 6 days ago
Select Lufthansa flight, departing Fri, Sep 19 from Cologne to Trieste, returning Thu, Sep 25, priced at $342 found 6 days ago
Lufthansa
Fri, Sep 19 - Thu, Sep 25
CGN
Cologne
TRS
Trieste
$344 Roundtrip, found 6 days ago
$344
Roundtrip
found 6 days ago
Select Lufthansa flight, departing Fri, Sep 19 from Cologne to Trieste, returning Thu, Sep 25, priced at $344 found 6 days ago
Lufthansa
Sat, Dec 27 - Sat, Jan 3
CGN
Cologne
TRS
Trieste
$348 Roundtrip, found 6 days ago
$348
Roundtrip
found 6 days ago
Select Lufthansa flight, departing Sat, Dec 27 from Cologne to Trieste, returning Sat, Jan 3, priced at $348 found 6 days ago
Lufthansa
Sat, Dec 27 - Sat, Jan 3
CGN
Cologne
TRS
Trieste
$351 Roundtrip, found 6 days ago
$351
Roundtrip
found 6 days ago
Select Lufthansa flight, departing Sat, Dec 27 from Cologne to Trieste, returning Sat, Jan 3, priced at $351 found 6 days ago
Lufthansa
Fri, Sep 19 - Thu, Sep 25
CGN
Cologne
TRS
Trieste
$354 Roundtrip, found 6 days ago
$354
Roundtrip
found 6 days ago
Select Lufthansa flight, departing Fri, Sep 19 from Cologne to Trieste, returning Thu, Sep 25, priced at $354 found 6 days ago
ITA Airways
Fri, Sep 19 - Thu, Sep 25
CGN
Cologne
TRS
Trieste
$513 Roundtrip, found 6 days ago
$513
Roundtrip
found 6 days ago
Select ITA Airways flight, departing Fri, Sep 19 from Cologne to Trieste, returning Thu, Sep 25, priced at $513 found 6 days ago
Turkish Airlines
Fri, Sep 19 - Thu, Sep 25
CGN
Cologne
TRS
Trieste
$837 Roundtrip, found 6 days ago
$837
Roundtrip
found 6 days ago
Select Turkish Airlines flight, departing Fri, Sep 19 from Cologne to Trieste, returning Thu, Sep 25, priced at $837 found 6 days ago
Flights from Cologne (CGN) to Trieste (TRS)
Origin airport
Cologne - Bonn
Destination airport
Friuli Venezia Giulia
Roundtrip price
$322
Distance
455 mi
Average flight time
1 hour 30 mins

Cologne to Trieste Flights

The cheapest times to fly from Cologne to Trieste

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

 

The best time to book a flight from Cologne to Trieste

Sunday is one of the best days to book for cheap flights from Cologne to Trieste: 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 Cologne to Trieste

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 Cologne to Trieste in 2025. You can also book with separate airlines for your outbound and return journeys, from $184 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 Cologne to Trieste 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 Cologne to Trieste 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 Cologne - Bonn Airport (CGN) to Friuli Venezia Giulia Airport (TRS) cost?
Discover the latest flight deals from CGN to TRS 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 CGN to TRS?
The cheapest flights from CGN to TRS 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 CGN to TRS?
Use the filter tool on Expedia to compare airlines and find the cheapest carrier that'll take you from CGN to TRS. Sort your results by "Price (lowest to highest)" to snap up a great deal.
How many flights per day from Cologne - Bonn Airport (CGN) to Friuli Venezia Giulia Airport (TRS)?
There aren't any daily nonstop flights departing from Cologne - Bonn Airport (CGN) to Friuli Venezia Giulia Airport (TRS). But you can opt for flights with layovers. Filter your search results on Expedia to include one or more stops, and you'll be soaring above the clouds before you know it.
What day of the week has the most flights from CGN to TRS?
Usually you'll find the most flight options available on a Friday. Tuesdays are often the quietest.* But this can change depending on the season, airline 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 Cologne - Bonn Airport (CGN) to Friuli Venezia Giulia Airport (TRS)?
To avoid possible delays on the Cologne - Bonn Airport (CGN) to Friuli Venezia Giulia Airport (TRS) route, fly before 3 PM. Flights after this time have a 22% higher chance of being canceled.**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 Cologne - Bonn Airport (CGN) to Friuli Venezia Giulia Airport (TRS) last-minute?
Last-minute bookings from CGN to TRS are usually more expensive. To secure the lowest rates, start searching for flights well ahead of time. That said, if you can play around with your travel dates, you may land a cheap ticket just before your departure.
Is it cheaper to book a CGN to TRS flight and hotel package?
Compared with arranging flights and hotels separately, booking a CGN to TRS flight and hotel package with Expedia could result in significant savings. Better still, having it all in one place will take the stress out of planning your trip. Just pick your flights and select from our extensive range of hotels, then customize your trip with other add-ons like tours, activities and car rentals.
Can I cancel or change the date of my flight from Cologne - Bonn Airport (CGN) to Friuli Venezia Giulia Airport (TRS)?
It's generally possible to cancel or reschedule your CGN to TRS flight. However, if the booking was made more than 24 hours ago, additional fees may apply. Refer to your airline's policies in your itinerary to see what changes are allowed and whether any costs are involved. You'll also find more information on our Customer Service portal.

Explore a world of travel with Expedia

*Available to One Key members.