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

About this route:

A direct, nonstop flight between St. Louis Regional Airport (ALN), Alton, Illinois, United States and Dublin Airport (DUB), Dublin, Ireland would travel a Great Circle distance of 3,892 miles (or 6,263 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 Regional Airport and Dublin 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 Regional Airport and Dublin 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 Regional Airport (ALN):

• The 2,250 acres airfield sits at 544 ft MSL.
• In the spring of 2004 the airport was at the center of a scandal.
• 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.
• St. Louis Regional Airport (ALN) has 2 runways.
• Today a fair amount of air traffic and the Direct TV blimp comes for Cardinals playoffs, as Lambert's airport cannot take the blimp.
• 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 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.

Facts about Dublin Airport (DUB):

• The DAA has ambitious long-haul expansion plans and has successfully added new routes to North America and the Middle East in recent years.
• Because of Dublin Airport's relatively low elevation of 242 feet, planes can take off or land at Dublin 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.
• Dublin Airport handled 20,166,783 passengers last year.
• Dublin Airport (DUB) has 2 runways.
• The advent of wide-body aircraft posed opportunities and challenges for aviation.
• The furthest airport from Dublin Airport (DUB) is Ryan's Creek Aerodrome (SZS), which is located 11,922 miles (19,187 kilometers) away in Stewart Island, New Zealand.
• In addition to being known as "Dublin Airport", another name for DUB is "Aerfort Bhaile Átha Cliath".
• The Office of the Revenue Commissioners provide a customs service to both passenger and cargo terminals, while the Department of Agriculture also has a presence in the airport.
• The closest airport to Dublin Airport (DUB) is Kilkenny Airport (KKY), which is located 68 miles (110 kilometers) SW of DUB.
• Upon the outbreak of World War II, services were severely restricted at Dublin Airport until late 1945 and the only international scheduled route operated during this time was by Aer Lingus to Liverpool.
• Dublin Airport is one of only two airports in Ireland with United States border preclearance services for US-bound passengers.
• The airport saw significant declines in traffic in 2009 and 2010, although since 2011 the airport has seen an uptick in traffic.