The cheapest times to fly from CGN to TRS are

  • January 8th to April 1st (except the week of February 19th)
  • May 7th to June 24th
  • July 16th to July 29th
  • August 20th to September 23rd (except the week of September 10th)

based on data collected exclusively by Champion Traveler across tens of millions of flights. Among all the dates above, the very cheapest time to fly from CGN to TRS is mid to late August. Prices can be as high as $325 for Saturday flights during late September, or as low as $79 for Sunday flights around mid to late August.


When to Fly to Trieste

Flying from Cologne (CGN) to Trieste (TRS) will usually cost between $186 to $219 per person if booking more than four weeks in advance. On average the very cheapest time to fly is mid to late August with an average ticket price of $181. Due to high demand the most expensive time to fly is late September, with an average price of $214. Planning your trip to low-cost times can easily save you $33 on economy flights and even more on first-class flights. Generally, any price below $194 can be considered a good price for a round-trip CGN to TRS flight.

See below for a graph of average weekly prices for the CGN to TRS route. All prices are for round-trip tickets in USD.

CGN to TRS Flight Prices

Compared to other flights, the CGN to TRS flight is much cheaper than the average and costs much less than the average flight leaving from Cologne. The average price per mile (for a direct flight) is $0.27, which is below average.


Flight Prices by Day of the Week

Sunday is usually the cheapest day to depart and return on this flight. Saturdays are the most expensive days to fly out or take a return trip. Selecting flights on the least expensive days could save you up to $30 (14%) on this flight.

Departing prices are for round-trip flights returning on the day of departure. For example, a flight departing on Sunday and returning a week later will cost an average of $182. Return trip prices are from the TRS to CGN flight, and often highlight the quality of our data in showing the same trend.

Departing Prices by Day

Departure Day Prices

Return Trip Prices by Day

Return Day Prices


Nonstop Flights and Layovers

Travelers looking to fly from CGN to TRS can generally find a 0-layover flight. Because there is a direct flight option the real-world direct flight time of 1 hour 48 minutes may be realistic.


Alternative Nearby Airports

Champion Traveler tells you which airports are nearby and whether tickets might be cheaper alternative airports nearby. Sometimes it’s worth it to fly into a closer airport and then commute to your destination. Remember that there is a nonstop flight from CGN to TRS while comparing.

Destination alternative #1: Treviso Airport (TSF) in Venice

  • 63 miles (101 km) away from TRS
  • Usually 55.15% less expensive than TRS
  • Nonstop flights available

See CGN to TSF flights

Destination alternative #2: Bologna Airport (BLQ) in Bologna

  • 139 miles (224 km) away from TRS
  • Usually 48.45% less expensive than TRS
  • Nonstop flights available

See CGN to BLQ flights

Destination alternative #3: Zagreb Airport (ZAG) in Zagreb

  • 125 miles (201 km) away from TRS
  • Usually 24.23% less expensive than TRS
  • Nonstop flights available

See CGN to ZAG flights

Destination alternative #4: Marco Polo International Airport (VCE) in Venice

  • 58 miles (93 km) away from TRS
  • Usually 19.59% less expensive than TRS
  • Nonstop flights available

See CGN to VCE flights

Destination alternative #5: Salzburg Airport (SZG) in Salzburg

  • 138 miles (222 km) away from TRS
  • Usually 22.42% less expensive than TRS
  • Nonstop flights available

See CGN to SZG flights

Destination alternative #6: Klagenfurt Airport (KLU) in Klagenfurt

  • 70 miles (113 km) away from TRS
  • Usually 10.82% less expensive than TRS
  • Nonstop flights available

See CGN to KLU flights


Flight Questions Answered

Still have questions about flying from CGN to TRS? We’ve got answers.

Which airlines fly this route?

You can find 6 major airlines flying this route most often: Alitalia, Eurowings, Lufthansa, SWISS, Tap Air Portugal, TUI fly, and potentially more during busy seasons.

How far away is it from Trieste Airport to Koeln Bonn Airport?

The distance between the two airports is roughly 453 miles or 729 kilometers.

How long does it take to fly from CGN to TRS?

The real-world flight time for a nonstop CGN to TRS flight is about 1 hour 48 minutes.

How many flights go between Cologne and Trieste?

It depends on the day of the week and the date, but a typical day might have around 32 available flights from CGN to TRS.


Airport Location Info


Departing Airport

Origination codeCGN
Origination airport nameKoeln Bonn Airport

Return Airport

Destination codeTRS
Destination airport nameTrieste Airport


Other Resources

Please note that while we’ve worked hard to analyzed tens of millions of flights to get you this data, we do not calculate current live prices or guarantee pricing. Please see our partners using the links above for current offers.