Nonstop flight route between Boulder, Colorado, United States and Trieste, Italy:

About this route:

A direct, nonstop flight between Boulder Municipal Airport (WBU), Boulder, Colorado, United States and Trieste – Friuli Venezia Giulia Airport (TRS), Trieste, Italy would travel a Great Circle distance of 5,400 miles (or 8,691 kilometers).

A Great Circle is the shortest distance between 2 points on a sphere. Because most world maps are flat (but the Earth is round), the route of the shortest distance between 2 points on the Earth will often appear curved when viewed on a flat map, especially for long distances. If you were to simply draw a straight line on a flat map and measure a very long distance, it would likely be much further than if you were to lay a string between those two points on a globe. Because of the large distance between Boulder Municipal Airport and Trieste – Friuli Venezia Giulia Airport, the route shown on this map most likely appears curved because of this reason.

Try it at home! Get a globe and tightly lay a string between Boulder Municipal Airport and Trieste – Friuli Venezia Giulia Airport. You'll see that it will travel the same route of the red line on this map!

Departure Airport Information:

Arrival Airport Information:

Facts about Boulder Municipal Airport (WBU):

• There is no terminal, just hangars for various aviation companies and maintenance buildings.
• The closest airport to Boulder Municipal Airport (WBU) is Rocky Mountain Metropolitan Airport (BJC), which is located only 11 miles (17 kilometers) SSE of WBU.
• The furthest airport from Boulder Municipal Airport (WBU) is Sir Gaëtan Duval Airport (RRG), which is located 10,881 miles (17,511 kilometers) away in Rodrigues Island, Mauritius.
• Because of Boulder Municipal Airport's high elevation of 5,288 feet, planes must typically fly at a faster airspeed in order to takeoff or land at WBU. Combined with a high temperature, this could make WBU a "Hot & High" airport, where the air density is lower than it would otherwise be at sea level.
• Boulder Municipal Airport is a public airport located 3 miles northeast of the central business district of Boulder, a city in Boulder County, Colorado, United States.
• Boulder Municipal Airport (WBU) has 2 runways.
• In addition to being known as "Boulder Municipal Airport", another name for WBU is "BDU".

Facts about Trieste – Friuli Venezia Giulia Airport (TRS):

• Trieste – Friuli Venezia Giulia Airport (TRS) currently has only 1 runway.
• Trieste – Friuli Venezia Giulia Airport handled 853,285 passengers last year.
• In addition to this, the Company aims at developing non-aviation activities at the airport.
• Because of Trieste – Friuli Venezia Giulia Airport's relatively low elevation of 39 feet, planes can take off or land at Trieste – Friuli Venezia Giulia Airport at a lower air speed than at airports located at a higher elevation. This is because the air density is higher closer to sea level than it would otherwise be at higher elevations.
• The first official documents citing the airfield of Ronchi dei Legionari date back to 30 November 1935, when the 4th Fighter Wing of the Royal Italian Air Force was based here.
• In addition to being known as "Trieste – Friuli Venezia Giulia Airport", other names for TRS include "Friuli Venezia Giulia "Pietro Savorgnan di Brazzà" Airport", "Aeroporto di Trieste–Friuli Venezia Giulia" and "Ronchi dei Legionari Airport".
• The furthest airport from Trieste – Friuli Venezia Giulia Airport (TRS) is Chatham Islands (CHT), which is located 11,931 miles (19,201 kilometers) away in Waitangi, Chatham Islands, New Zealand.
• The closest airport to Trieste – Friuli Venezia Giulia Airport (TRS) is Portorož Airport (POW), which is located 25 miles (41 kilometers) SSE of TRS.
• Trieste – Friuli Venezia Giulia Airport, formerly Trieste – Ronchi dei Legionari Airport, is an airport located 0.3 NM west of Ronchi dei Legionari, near Trieste in Venezia Giulia, north-eastern Italy.