Nonstop flight route between Redhill, Surrey, England, United Kingdom and Cahokia, Illinois (near St. Louis), United States:

About this route:

A direct, nonstop flight between Redhill Aerodrome (KRH), Redhill, Surrey, England, United Kingdom and St. Louis Downtown Airport (CPS), Cahokia, Illinois (near St. Louis), United States would travel a Great Circle distance of 4,210 miles (or 6,775 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 Downtown 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 Downtown 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):

• An Elementary Flying Training School was formed at Redhill in July 1937.
• Redhill Aerodrome (KRH) has 4 runways.
• The airfield came into use in the 1930s for private flying and it was used as an alternative airfield to Croydon Airport by Imperial Airways.
• On 24 December 2013, the aerodrome suffered storm damage and flooding, with some light aircraft overturned.
• Redhill Aerodrome is an operational general aviation aerodrome located 1.5 NM southeast of Redhill, Surrey, England, in green belt land.
• In August 1942 the airfield had five squadrons based.
• Charter and private arrivals and departures can be tracked on the Aerodrome Information website.
• The airfield is still operated for private flying and training, with an emphasis on helicopter operators.
• The closest airport to Redhill Aerodrome (KRH) is Gatwick Airport (LGW), which is located only 5 miles (8 kilometers) SSW of KRH.
• 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.
• 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.

Facts about St. Louis Downtown Airport (CPS):

• Because of St. Louis Downtown Airport's relatively low elevation of 413 feet, planes can take off or land at St. Louis Downtown 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.
• St. Louis Downtown Airport (CPS) has 3 runways.
• The airport closed in 1959 and reopened six years later as Bi-State Parks Airport.
• The airport opened in 1929 as Curtiss-Steinberg Airport.
• The closest airport to St. Louis Downtown Airport (CPS) is Lambert–St. Louis International Airport (STL), which is located only 16 miles (27 kilometers) NW of CPS.
• The furthest airport from St. Louis Downtown Airport (CPS) is Margaret River Airport (MGV), which is located 10,998 miles (17,700 kilometers) away in Margaret River, Western Australia, Australia.