Nonstop flight route between Jacksonville, Illinois, United States and Spearfish, South Dakota, United States:
Departure Airport:

Arrival Airport:

Distance from IJX to SPF:
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- About this route
- IJX Airport Information
- SPF Airport Information
- Facts about IJX
- Facts about SPF
- Map of Nearest Airports to IJX
- List of Nearest Airports to IJX
- Map of Furthest Airports from IJX
- List of Furthest Airports from IJX
- Map of Nearest Airports to SPF
- List of Nearest Airports to SPF
- Map of Furthest Airports from SPF
- List of Furthest Airports from SPF
About this route:
A direct, nonstop flight between Imeson FieldJacksonville Army AirfieldNaval Auxiliary Air Station Jacksonville #1 (IJX), Jacksonville, Illinois, United States and Black Hills Airport (SPF), Spearfish, South Dakota, United States would travel a Great Circle distance of 1,546 miles (or 2,489 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 Imeson FieldJacksonville Army AirfieldNaval Auxiliary Air Station Jacksonville #1 and Black Hills Airport, the route shown on this map most likely still appears to be a straight line.
Departure Airport Information:
IATA / ICAO Codes: | IJX / KIJX |
Airport Name: | Imeson FieldJacksonville Army AirfieldNaval Auxiliary Air Station Jacksonville #1 |
Location: | Jacksonville, Illinois, United States |
GPS Coordinates: | 30°25'12"N by 81°38'24"W |
Elevation: | 20 feet (6 meters) |
View all routes: | Routes from IJX |
More Information: | IJX Maps & Info |
Arrival Airport Information:
IATA / ICAO Codes: | SPF / KSPF |
Airport Names: |
|
Location: | Spearfish, South Dakota, United States |
GPS Coordinates: | 44°28'49"N by 103°46'59"W |
Operator/Owner: | Lawrence County Airport Board |
Airport Type: | Public |
Elevation: | 3931 feet (1,198 meters) |
# of Runways: | 4 |
View all routes: | Routes from SPF |
More Information: | SPF Maps & Info |
Facts about Imeson FieldJacksonville Army AirfieldNaval Auxiliary Air Station Jacksonville #1 (IJX):
- The furthest airport from Imeson FieldJacksonville Army AirfieldNaval Auxiliary Air Station Jacksonville #1 (IJX) is Shark Bay Airport (MJK), which is located 11,460 miles (18,442 kilometers) away in Monkey Mia, Western Australia, Australia.
- Because of Imeson FieldJacksonville Army AirfieldNaval Auxiliary Air Station Jacksonville #1's relatively low elevation of 20 feet, planes can take off or land at Imeson FieldJacksonville Army AirfieldNaval Auxiliary Air Station Jacksonville #1 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 the fall of 1945, jurisdiction of Jacksonville AAF was transferred to Air Technical Service Command, whose mission was the transfer of any useful military equipment to other bases around the country.
- The largest airliner scheduled to Imeson was the McDonnell Douglas DC-8-61 flown by Delta Air Lines.
- Originally named Jacksonville Municipal Airport Number One, in the 1950s the facility was renamed after Thomas Cole Imeson, city councilman and later longtime commissioner in charge of airports and highways.
- The unit was called to active duty on 10 October 1950 as a result of the outbreak of the Korean War.
- During 1944 and 1945 Air Service Command used Jacksonville AAF as a staging base for Station Compliment squadrons prior to their overseas deployment.
- The closest airport to Imeson FieldJacksonville Army AirfieldNaval Auxiliary Air Station Jacksonville #1 (IJX) is Jacksonville International Airport (JAX), which is located only 6 miles (9 kilometers) NNW of IJX.
Facts about Black Hills Airport (SPF):
- Black Hills Airport (SPF) has 4 runways.
- The closest airport to Black Hills Airport (SPF) is Ellsworth Air Force Base (RCA), which is located 42 miles (67 kilometers) ESE of SPF.
- In addition to being known as "Black Hills Airport", another name for SPF is "Clyde Ice Field".
- The furthest airport from Black Hills Airport (SPF) is Sir Gaëtan Duval Airport (RRG), which is located 10,576 miles (17,020 kilometers) away in Rodrigues Island, Mauritius.