Nonstop flight route between Carrickfinn, Ireland and Alton, Illinois, United States:

About this route:

A direct, nonstop flight between Donegal Airport (CFN), Carrickfinn, Ireland and St. Louis Regional Airport (ALN), Alton, Illinois, United States would travel a Great Circle distance of 3,774 miles (or 6,074 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 Donegal 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 Donegal 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 Donegal Airport (CFN):

• Because of Donegal Airport's relatively low elevation of 30 feet, planes can take off or land at Donegal 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.
• Donegal Airport is located 2 NM south-west of Bunbeg, being located at Carrickfinn, a townland in The Rosses, a district in north-west County Donegal, Ireland.
• Due to the large gas field in the area, non-scheduled chartered Helicopter flights connect to the multiple offshore installations.
• Loganair began Services to Dublin and Glasgow international on 2 November 2011 with Saab 340s.
• Donegal Airport (CFN) currently has only 1 runway.
• The closest airport to Donegal Airport (CFN) is City of Derry Airport (LDY), which is located 47 miles (75 kilometers) E of CFN.
• In addition to being known as "Donegal Airport", another name for CFN is "Aerfort Dhún na nGall".
• The furthest airport from Donegal Airport (CFN) is Ryan's Creek Aerodrome (SZS), which is located 11,853 miles (19,076 kilometers) away in Stewart Island, New Zealand.

Facts about St. Louis Regional Airport (ALN):

• 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.
• 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.
• Its operations are paid for by an airport taxation district created in 1946, which collects taxes from property owners in the Madison County townships of Alton, Wood River, Foster and Fort Russell.
• 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.