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

Arrival Airport:

Distance from PLH to ALN:
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- About this route
- PLH Airport Information
- ALN Airport Information
- Facts about PLH
- Facts about ALN
- Map of Nearest Airports to PLH
- List of Nearest Airports to PLH
- Map of Furthest Airports from PLH
- List of Furthest Airports from PLH
- Map of Nearest Airports to ALN
- List of Nearest Airports to ALN
- Map of Furthest Airports from ALN
- List of Furthest Airports from ALN
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:
IATA / ICAO Codes: | PLH / EGHD |
Airport Name: | Plymouth City Airport |
Location: | Plymouth, United Kingdom |
GPS Coordinates: | 50°25'22"N by 4°6'20"W |
Area Served: | Plymouth |
Operator/Owner: | Plymouth City Council |
Airport Type: | Public |
Elevation: | 476 feet (145 meters) |
# of Runways: | 1 |
View all routes: | Routes from PLH |
More Information: | PLH Maps & Info |
Arrival Airport Information:
IATA / ICAO Codes: | ALN / KALN |
Airport Name: | St. Louis Regional Airport |
Location: | Alton, Illinois, United States |
GPS Coordinates: | 38°53'25"N by 90°2'45"W |
Area Served: | Alton, Illinois |
Operator/Owner: | St. Louis Regional |
Airport Type: | Public |
Elevation: | 544 feet (166 meters) |
# of Runways: | 2 |
View all routes: | Routes from ALN |
More Information: | ALN Maps & Info |
Facts about Plymouth City Airport (PLH):
- Plymouth City Airport handled 157,933 passengers last year.
- However, despite many local residents sharing the view that these developments represented the 'beginning of the end' for the airport, in October 2007 Air Southwest announced new routes to Dublin, Cork, Chambéry, Glasgow International Airport and Newcastle Airport.
- The closest airport to Plymouth City Airport (PLH) is Exeter International Airport (EXT), which is located 37 miles (60 kilometers) NE of PLH.
- Plymouth City Airport (PLH) currently has only 1 runway.
- 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.
- In October 2011, a group of local businesses formed a group called VIABLE, that aims to re-open the site.
- 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.
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.
- 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.
- St. Louis Regional Airport (ALN) has 2 runways.
- 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.