Nonstop flight route between Chicago, Illinois, United States and Trieste, Italy:

About this route:

A direct, nonstop flight between Chicago O'Hare International Airport (ORD), Chicago, Illinois, United States and Trieste – Friuli Venezia Giulia Airport (TRS), Trieste, Italy would travel a Great Circle distance of 4,686 miles (or 7,541 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 Chicago O'Hare International 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 Chicago O'Hare International 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 Chicago O'Hare International Airport (ORD):

• United also runs a post-security shuttle service between Concourse C and Concourses E & F in Terminal 2.
• Chicago O'Hare International Airport (ORD) has 8 runways.
• The furthest airport from Chicago O'Hare International Airport (ORD) is Margaret River Airport (MGV), which is located 11,071 miles (17,817 kilometers) away in Margaret River, Western Australia, Australia.
• The closest airport to Chicago O'Hare International Airport (ORD) is Chicago Executive Airport (PWK), which is located only 9 miles (15 kilometers) N of ORD.
• United Airlines is the largest airline at O'Hare, carrying over 45% of all passengers passing through the airport.
• Douglas Company's contract ended in 1945 and though plans were proposed to build commercial aircraft, the company ultimately chose to concentrate production on the west coast.
• All fixed-wing scheduled airline service in Chicago moved from Midway to O'Hare by July 1962.
• The original Douglas Aircraft C-54 Skymaster transport manufacturing plant on the northeast side of the airport became a United States Air Force Air National Guard and Air Force Reserve facility after World War II.
• Chicago O'Hare International Airport, also known as O'Hare Airport, O'Hare Field, Chicago International Airport, or simply O'Hare, is a major airport located in the northwestern-most corner of Chicago, Illinois, 17 miles northwest of the Chicago Loop.
• Because of Chicago O'Hare International Airport's relatively low elevation of 668 feet, planes can take off or land at Chicago O'Hare International 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.
• In 1949, the airport was renamed "O'Hare International Airport" to honor Edward O'Hare, the U.S.

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

• 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".
• Trieste – Friuli Venezia Giulia Airport (TRS) currently has only 1 runway.
• Trieste – Friuli Venezia Giulia Airport handled 853,285 passengers last year.
• 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.
• 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 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.