Nonstop flight route between Piarco (near Port of Spain), Trinidad and Tobago and Alton, Illinois, United States:

About this route:

A direct, nonstop flight between Piarco International Airport (POS), Piarco (near Port of Spain), Trinidad and Tobago and St. Louis Regional Airport (ALN), Alton, Illinois, United States would travel a Great Circle distance of 2,635 miles (or 4,241 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 Piarco International Airport 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 Piarco International Airport 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 Piarco International Airport (POS):

• In addition to being known as "Piarco International Airport", another name for POS is "78970[1][2]".
• Because of Piarco International Airport's relatively low elevation of 58 feet, planes can take off or land at Piarco 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.
• Piarco International Airport has two terminals.
• A major expansion of the airport, which included the construction of a new terminal building, and high-speed taxiways, was completed in 2001.
• The closest airport to Piarco International Airport (POS) is A.N.R. Robinson International Airport (TAB), which is located 51 miles (83 kilometers) NE of POS.
• Piarco International Airport has direct service to many destinations in the United States, Canada, Central America, South America and Europe.
• The Air Guard of Trinidad and Tobago is based at Piarco International Airport.
• The furthest airport from Piarco International Airport (POS) is Umbu Mehang Kunda Airport (WGP), which is nearly antipodal to Piarco International Airport (meaning Piarco International Airport is almost on the exact opposite side of the Earth from Umbu Mehang Kunda Airport), and is located 12,308 miles (19,808 kilometers) away in Waingapu, Sumba, East Nusa Tenggara, Indonesia.
• Piarco International Airport (POS) currently has only 1 runway.

Facts about St. Louis Regional Airport (ALN):

• St. Louis Regional Airport (ALN) has 2 runways.
• In the spring of 2004 the airport was at the center of a scandal.
• West Star Aviation is the largest fixed base operations company at the airport.
• 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.
• 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.
• 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.