Nonstop flight route between Catania, Italy and Alton, Illinois, United States:

About this route:

A direct, nonstop flight between Naval Air Station Sigonella (NSY), Catania, Italy and St. Louis Regional Airport (ALN), Alton, Illinois, United States would travel a Great Circle distance of 5,334 miles (or 8,584 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 Naval Air Station Sigonella and St. Louis Regional 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 Naval Air Station Sigonella and St. Louis Regional 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 Naval Air Station Sigonella (NSY):

• Most permanent party military personnel and families are housed in Marinai, located 2 minutes from NAS II and approximately 10–15 minutes from NAS I.
• Naval Air Station Sigonella (NSY) has 2 runways.
• Because of Naval Air Station Sigonella's relatively low elevation of 79 feet, planes can take off or land at Naval Air Station Sigonella 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.
• It also serves as an Italian base for the 41º Stormo Antisom.
• The closest airport to Naval Air Station Sigonella (NSY) is Catania–Fontanarossa Airport (CTA), which is located only 9 miles (14 kilometers) ENE of NSY.
• In addition to being known as "Naval Air Station Sigonella", other names for NSY include "Base aerea di Sigonella" and "NAS Sigonella".
• By the end of August 1959, the NAF II airfield was available for daylight flights under visual flight rules.
• When NATO took military intervention to Libya in 2011, NAS Sigonella played an important role in US Operation Odyssey Dawn because of its short distance to the country.
• The furthest airport from Naval Air Station Sigonella (NSY) is Chatham Islands (CHT), which is located 11,695 miles (18,821 kilometers) away in Waitangi, Chatham Islands, New Zealand.

Facts about St. Louis Regional Airport (ALN):

• The closest airport to St. Louis Regional Airport (ALN) is Lambert–St. Louis International Airport (STL), which is located only 20 miles (32 kilometers) WSW of ALN.
• The furthest airport from St. Louis Regional Airport (ALN) is Margaret River Airport (MGV), which is located 11,002 miles (17,706 kilometers) away in Margaret River, Western Australia, Australia.
• West Star Aviation is the largest fixed base operations company at the airport.
• St. Louis Regional Airport (ALN) has 2 runways.
• Because of St. Louis Regional Airport's relatively low elevation of 544 feet, planes can take off or land at St. Louis Regional 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.
• Civic Memorial Airport opened in 1946 and received its current name in 1984.