Nonstop flight route between Rome, Italy and St. Louis, Missouri, United States:

About this route:

A direct, nonstop flight between Ciampino–G. B. Pastine International Airport (CIA), Rome, Italy and Lambert–St. Louis International Airport (STL), St. Louis, Missouri, United States would travel a Great Circle distance of 5,067 miles (or 8,154 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 Ciampino–G. B. Pastine International Airport and Lambert–St. Louis 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 Ciampino–G. B. Pastine International Airport and Lambert–St. Louis 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 Ciampino–G. B. Pastine International Airport (CIA):

• Ciampino–G. B. Pastine International Airport (CIA) currently has only 1 runway.
• Because of Ciampino–G. B. Pastine International Airport's relatively low elevation of 427 feet, planes can take off or land at Ciampino–G. B. Pastine 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.
• The furthest airport from Ciampino–G. B. Pastine International Airport (CIA) is Chatham Islands (CHT), which is located 11,958 miles (19,244 kilometers) away in Waitangi, Chatham Islands, New Zealand.
• Ciampino–G. B. Pastine International Airport handled 4,749,251 passengers last year.
• The terminals were extended at the beginning of 2007.
• The closest airport to Ciampino–G. B. Pastine International Airport (CIA) is Fiumicino – Leonardo da Vinci International Airport (FCO), which is located only 18 miles (30 kilometers) W of CIA.
• In addition to being known as "Ciampino–G. B. Pastine International Airport", other names for CIA include "Rome Ciampino Airport" and "Ciampino–Aeroporto Internazionale G. B. Pastine".

Facts about Lambert–St. Louis International Airport (STL):

• The furthest airport from Lambert–St. Louis International Airport (STL) is Margaret River Airport (MGV), which is located 10,986 miles (17,681 kilometers) away in Margaret River, Western Australia, Australia.
• In 1985, Southwest Airlines began service, an event that would lead to major changes at the airport in the coming years.
• In 2006, the United States Air Force announced plans to turn the 131st Fighter Wing of the Missouri Air National Guard into the 131st Bomb Wing.
• Because of Lambert–St. Louis International Airport's relatively low elevation of 605 feet, planes can take off or land at Lambert–St. Louis 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.
• Lambert–St. Louis International Airport (STL) has 4 runways.
• The closest airport to Lambert–St. Louis International Airport (STL) is St. Louis Downtown Airport (CPS), which is located only 16 miles (27 kilometers) SE of STL.
• In the late 1920s, Lambert Field became the first airport with an air traffic control system—albeit one that communicated with pilots via waving flags.
• By 2013, flights at the airport had continued their steady growth, with 64 non-stop cities served, including 6 international destinations, St.