Nonstop flight route between Fiumicino (near Rome), Italy and Cahokia, Illinois (near St. Louis), United States:

About this route:

A direct, nonstop flight between Fiumicino – Leonardo da Vinci International Airport (FCO), Fiumicino (near Rome), Italy and St. Louis Downtown Airport (CPS), Cahokia, Illinois (near St. Louis), United States would travel a Great Circle distance of 5,052 miles (or 8,130 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 Fiumicino – Leonardo da Vinci International Airport and St. Louis Downtown 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 Fiumicino – Leonardo da Vinci International Airport and St. Louis Downtown 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 Fiumicino – Leonardo da Vinci International Airport (FCO):

• Ground handling services were provided by Aeroporti di Roma until 1999, when it created Aeroporti di Roma Handling.
• In addition to being known as "Fiumicino – Leonardo da Vinci International Airport", another name for FCO is "Fiumicino – Aeroporto Internazionale Leonardo da Vinci".
• Because of Fiumicino – Leonardo da Vinci International Airport's relatively low elevation of 13 feet, planes can take off or land at Fiumicino – Leonardo da Vinci 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.
• Leonardo da Vinci is about 35 km by car from Rome's historic city centre.
• In 2009, the terminals were renamed — A was renamed T1, AA was renamed T2, B and C became T3 and T5 stayed the same.
• Fiumicino – Leonardo da Vinci International Airport handled 36,166,345 passengers last year.
• The closest airport to Fiumicino – Leonardo da Vinci International Airport (FCO) is Ciampino–G. B. Pastine International Airport (CIA), which is located only 18 miles (30 kilometers) E of FCO.
• Fiumicino – Leonardo da Vinci International Airport (FCO) has 4 runways.
• Several projects are planned.
• Security Services transferred from the Polizia di Stato to Aeroporti di Roma in 2000.
• The furthest airport from Fiumicino – Leonardo da Vinci International Airport (FCO) is Chatham Islands (CHT), which is located 11,975 miles (19,272 kilometers) away in Waitangi, Chatham Islands, New Zealand.

Facts about St. Louis Downtown Airport (CPS):

• St. Louis Downtown Airport (CPS) has 3 runways.
• The closest airport to St. Louis Downtown Airport (CPS) is Lambert–St. Louis International Airport (STL), which is located only 16 miles (27 kilometers) NW of CPS.
• The airport closed in 1959 and reopened six years later as Bi-State Parks Airport.
• The furthest airport from St. Louis Downtown Airport (CPS) is Margaret River Airport (MGV), which is located 10,998 miles (17,700 kilometers) away in Margaret River, Western Australia, Australia.
• Because of St. Louis Downtown Airport's relatively low elevation of 413 feet, planes can take off or land at St. Louis Downtown 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.