Nonstop flight route between Bilbao, Spain and Alton, Illinois, United States:

About this route:

A direct, nonstop flight between Bilbao Airport (BIO), Bilbao, Spain and St. Louis Regional Airport (ALN), Alton, Illinois, United States would travel a Great Circle distance of 4,331 miles (or 6,970 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 Bilbao 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 Bilbao 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 Bilbao Airport (BIO):

• After various aeronautic experiments in the province of Biscay, in October 1927 steps were taken by the Union of Public Works to establish an airport in Bilbao.
• In 1940, it was decided by common agreement with the local organisations affected to build a civilian airport in Sondika.
• Because of Bilbao Airport's relatively low elevation of 137 feet, planes can take off or land at Bilbao 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.
• Users of the airport widely complained about its lack of an arrivals area, since once passengers cleared customs, they stepped directly outside, and there they were often exposed to the elements.
• In addition to being known as "Bilbao Airport", another name for BIO is "Bilboko aireportua (eu) Aeropuerto de Bilbao (es)".
• The airport has seen a constant increase in its traffic numbers, the old terminal was already saturated and obsolete in 1990, although it had been renewed only a few years earlier.
• Bilbao Airport (BIO) has 2 runways.
• The closest airport to Bilbao Airport (BIO) is Vitoria-Gasteiz Airport (VIT), which is located 30 miles (49 kilometers) SSE of BIO.
• Bilbao Airport handled 3,800,789 passengers last year.
• The terminal has a sleek design, with two symmetrical "wings" and a sharp tip at its center which is specially visible when approaching the terminal from the sides.
• The furthest airport from Bilbao Airport (BIO) is Hood Aerodrome (MRO), which is nearly antipodal to Bilbao Airport (meaning Bilbao Airport is almost on the exact opposite side of the Earth from Hood Aerodrome), and is located 12,260 miles (19,730 kilometers) away in Masterton, New Zealand.

Facts about St. Louis Regional Airport (ALN):

• 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.
• Today a fair amount of air traffic and the Direct TV blimp comes for Cardinals playoffs, as Lambert's airport cannot take the blimp.
• 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.
• 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.
• Civic Memorial Airport opened in 1946 and received its current name in 1984.
• 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.
• St. Louis Regional Airport (ALN) has 2 runways.