Nonstop flight route between Redhill, Surrey, England, United Kingdom and Alton, Illinois, United States:

About this route:

A direct, nonstop flight between Redhill Aerodrome (KRH), Redhill, Surrey, England, United Kingdom and St. Louis Regional Airport (ALN), Alton, Illinois, United States would travel a Great Circle distance of 4,190 miles (or 6,744 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 Redhill Aerodrome 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 Redhill Aerodrome 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 Redhill Aerodrome (KRH):

• Because of Redhill Aerodrome's relatively low elevation of 222 feet, planes can take off or land at Redhill Aerodrome 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 airfield is still operated for private flying and training, with an emphasis on helicopter operators.
• The furthest airport from Redhill Aerodrome (KRH) is Chatham Islands (CHT), which is located 11,897 miles (19,147 kilometers) away in Waitangi, Chatham Islands, New Zealand.
• Redhill Aerodrome (KRH) has 4 runways.
• On 24 December 2013, the aerodrome suffered storm damage and flooding, with some light aircraft overturned.
• An Elementary Flying Training School was formed at Redhill in July 1937.
• The closest airport to Redhill Aerodrome (KRH) is Gatwick Airport (LGW), which is located only 5 miles (8 kilometers) SSW of KRH.

Facts about St. Louis Regional Airport (ALN):

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