Nonstop flight route between Hailey, Idaho, United States and Cahokia, Illinois (near St. Louis), United States:
Departure Airport:

Arrival Airport:

Distance from SUN to CPS:
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- About this route
- SUN Airport Information
- CPS Airport Information
- Facts about SUN
- Facts about CPS
- Map of Nearest Airports to SUN
- List of Nearest Airports to SUN
- Map of Furthest Airports from SUN
- List of Furthest Airports from SUN
- Map of Nearest Airports to CPS
- List of Nearest Airports to CPS
- Map of Furthest Airports from CPS
- List of Furthest Airports from CPS
About this route:
A direct, nonstop flight between Friedman Memorial Airport (SUN), Hailey, Idaho, United States and St. Louis Downtown Airport (CPS), Cahokia, Illinois (near St. Louis), United States would travel a Great Circle distance of 1,298 miles (or 2,089 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 relatively short distance between Friedman Memorial Airport and St. Louis Downtown Airport, the route shown on this map most likely still appears to be a straight line.
Departure Airport Information:
IATA / ICAO Codes: | SUN / KSUN |
Airport Name: | Friedman Memorial Airport |
Location: | Hailey, Idaho, United States |
GPS Coordinates: | 43°30'14"N by 114°17'44"W |
Area Served: | Hailey, Ketchum, Sun Valley |
Operator/Owner: | City of Hailey |
Airport Type: | Public |
Elevation: | 5318 feet (1,621 meters) |
# of Runways: | 1 |
View all routes: | Routes from SUN |
More Information: | SUN Maps & Info |
Arrival Airport Information:
IATA / ICAO Codes: | CPS / KCPS |
Airport Name: | St. Louis Downtown Airport |
Location: | Cahokia, Illinois (near St. Louis), United States |
GPS Coordinates: | 38°34'14"N by 90°9'21"W |
Area Served: | Greater St. Louis |
Operator/Owner: | Bi-State Development Agency |
Airport Type: | Public |
Elevation: | 413 feet (126 meters) |
# of Runways: | 3 |
View all routes: | Routes from CPS |
More Information: | CPS Maps & Info |
Facts about Friedman Memorial Airport (SUN):
- Friedman Memorial Airport (SUN) currently has only 1 runway.
- Historically, the airport had scheduled passenger jet service provided in the past on a seasonal basis during the winter ski season by Horizon Air and America West Airlines.
- Because of Friedman Memorial Airport's high elevation of 5,318 feet, planes must typically fly at a faster airspeed in order to takeoff or land at SUN. Combined with a high temperature, this could make SUN a "Hot & High" airport, where the air density is lower than it would otherwise be at sea level.
- The furthest airport from Friedman Memorial Airport (SUN) is Pierrefonds Airport (ZSE), which is located 10,794 miles (17,372 kilometers) away in Saint-Pierre, Réunion.
- The closest airport to Friedman Memorial Airport (SUN) is Challis Airport (CHL), which is located 71 miles (114 kilometers) N of SUN.
- Friedman Memorial Airport covers an area of 171 acres at an elevation of 5,318 feet above sea level.
- The Friedman family donated much of the land for the airport to the city of Hailey in 1931 and the airport was officially recognized in 1932.
Facts about St. Louis Downtown Airport (CPS):
- 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 airport closed in 1959 and reopened six years later as Bi-State Parks Airport.
- St. Louis Downtown Airport (CPS) has 3 runways.
- 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.
- 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.