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

About this route:

A direct, nonstop flight between St. Louis Downtown Airport (CPS), Cahokia, Illinois (near St. Louis), United States and Fiumicino – Leonardo da Vinci International Airport (FCO), Fiumicino (near Rome), Italy 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 St. Louis Downtown Airport and Fiumicino – Leonardo da Vinci International 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 St. Louis Downtown Airport and Fiumicino – Leonardo da Vinci International 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 St. Louis Downtown Airport (CPS):

• 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.
• 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 airport opened in 1929 as Curtiss-Steinberg Airport.

Facts about Fiumicino – Leonardo da Vinci International Airport (FCO):

• 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.
• Ground handling services were provided by Aeroporti di Roma until 1999, when it created Aeroporti di Roma Handling.
• Fiumicino Aeroporto railway station is served by the Leonardo Express train operated by Trenitalia, available at the airport terminal.
• Fiumicino – Leonardo da Vinci International Airport (FCO) has 4 runways.
• 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 handled 36,166,345 passengers last year.
• 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.
• The terminals were upgraded during the 1990s and 2000s.