Nonstop flight route between Cahokia, Illinois (near St. Louis), United States and Inishmaan, Ireland:

About this route:

A direct, nonstop flight between St. Louis Downtown Airport (CPS), Cahokia, Illinois (near St. Louis), United States and Inishmaan Aerodrome (IIA), Inishmaan, Ireland would travel a Great Circle distance of 3,792 miles (or 6,102 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 Inishmaan Aerodrome, 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 Inishmaan Aerodrome. 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 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.
• St. Louis Downtown Airport (CPS) has 3 runways.
• 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.

Facts about Inishmaan Aerodrome (IIA):

• The furthest airport from Inishmaan Aerodrome (IIA) is Ryan's Creek Aerodrome (SZS), which is located 11,997 miles (19,307 kilometers) away in Stewart Island, New Zealand.
• In addition to being known as "Inishmaan Aerodrome", another name for IIA is "Inishmaan Airport".
• Inishmaan Aerodrome (IIA) has 2 runways.
• The closest airport to Inishmaan Aerodrome (IIA) is Inisheer Aerodrome (INQ), which is located only 3 miles (5 kilometers) SE of IIA.
• Because of Inishmaan Aerodrome's relatively low elevation of 13 feet, planes can take off or land at Inishmaan Aerodrome 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.