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 was an airport located within the City of Plymouth 3.5 NM north northeast of the city centre in Devon, England at Roborough.
• The closest airport to Plymouth City Airport (PLH) is Exeter International Airport (EXT), which is located 37 miles (60 kilometers) NE of PLH.
• 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.
• Plymouth City Airport handled 157,933 passengers last year.
• 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.
• Further support for the continued use of the airport came in February 2008 when Air Southwest and the Plymouth Chamber of Commerce & Industry announced the results of an air travel survey aimed at over 200 businesses in Plymouth.
• Plymouth City Airport (PLH) currently has only 1 runway.
• An RAF Chinook was forced to make an emergency landing at Plymouth Airport on 25 Nov 2011.

Facts about St. Louis Regional Airport (ALN):

• The 2,250 acres airfield sits at 544 ft MSL.
• 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 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.
• 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.