Nonstop flight route between Plymouth, United Kingdom and Alton, Illinois, United States:

About this route:

A direct, nonstop flight between Plymouth City Airport (PLH), Plymouth, United Kingdom and St. Louis Regional Airport (ALN), Alton, Illinois, United States would travel a Great Circle distance of 4,058 miles (or 6,531 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 Plymouth City 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 Plymouth City 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 Plymouth City Airport (PLH):

• Plymouth City Airport handled 157,933 passengers last year.
• In September 2007 the airport management announced that the second runway might be sold for industrial and residential development.
• Plymouth City Airport (PLH) currently has only 1 runway.
• The closest airport to Plymouth City Airport (PLH) is Exeter International Airport (EXT), which is located 37 miles (60 kilometers) NE of PLH.
• Air Southwest had its management head office at the airport, but announced that 12 jobs would be lost and its Plymouth office would close, moving instead to Humberside Airport, which is the main operations base for Eastern Airways.
• The furthest airport from Plymouth City Airport (PLH) is Dunedin International Airport (DUD), which is nearly antipodal to Plymouth City Airport (meaning Plymouth City Airport is almost on the exact opposite side of the Earth from Dunedin International Airport), and is located 12,030 miles (19,361 kilometers) away in Dunedin, Otago, New Zealand.
• Because of Plymouth City Airport's relatively low elevation of 476 feet, planes can take off or land at Plymouth City 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 St. Louis Regional Airport (ALN):

• 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.
• West Star Aviation is the largest fixed base operations company at the airport.
• St. Louis Regional Airport (ALN) has 2 runways.
• Civic Memorial Airport opened in 1946 and received its current name in 1984.
• 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.
• 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.