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

About this route:

A direct, nonstop flight between St. Louis Downtown Airport (CPS), Cahokia, Illinois (near St. Louis), United States and City of Derry Airport (LDY), Derry, Northern Ireland, United Kingdom would travel a Great Circle distance of 3,838 miles (or 6,177 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 City of Derry 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 City of Derry 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.
• 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 opened in 1929 as Curtiss-Steinberg Airport.
• St. Louis Downtown Airport (CPS) has 3 runways.

Facts about City of Derry Airport (LDY):

• The Belfast to Derry single track railway line of Northern Ireland Railways passes close to but not across the tip of the runway at the North Eastern end.
• City of Derry Airport handled 384,973 passengers last year.
• The recently completed runway safety zone extension and apron works has allowed the CAA to lift the capacity restriction on aircraft operating out of the airport.
• In June 2010 it was announced that the Airport was in the final stages of discussion with the Balfour Beatty Group about a management contract, with the objective of bringing additional commercial experience and resources to the Airport for the economic benefit of the region and to reduce the subvention from the City Council.
• The closest airport to City of Derry Airport (LDY) is Belfast International Airport (BFS), which is located 46 miles (74 kilometers) SE of LDY.
• A major redevelopment programme was undertaken by the Council from 1989 to 1993 with grant aid from the European Regional Development Fund.
• Because of City of Derry Airport's relatively low elevation of 23 feet, planes can take off or land at City of Derry 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.
• In addition to being known as "City of Derry Airport", another name for LDY is "Londonderry/Eglinton Airport[1]".
• The furthest airport from City of Derry Airport (LDY) is Ryan's Creek Aerodrome (SZS), which is located 11,838 miles (19,051 kilometers) away in Stewart Island, New Zealand.
• City of Derry Airport (LDY) currently has only 1 runway.