Nonstop flight route between Atwater, California, United States and Spartanburg, South Carolina, United States:
Departure Airport:

Arrival Airport:

Distance from MER to SPA:
Share this route:
Jump to:
- About this route
- MER Airport Information
- SPA Airport Information
- Facts about MER
- Facts about SPA
- Map of Nearest Airports to MER
- List of Nearest Airports to MER
- Map of Furthest Airports from MER
- List of Furthest Airports from MER
- Map of Nearest Airports to SPA
- List of Nearest Airports to SPA
- Map of Furthest Airports from SPA
- List of Furthest Airports from SPA
About this route:
A direct, nonstop flight between Castle Airport (MER), Atwater, California, United States and Spartanburg Downtown Memorial Airport (SPA), Spartanburg, South Carolina, United States would travel a Great Circle distance of 2,146 miles (or 3,454 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 Castle Airport and Spartanburg Downtown Memorial Airport, the route shown on this map most likely still appears to be a straight line.
Departure Airport Information:
IATA / ICAO Codes: | MER / KMER |
Airport Name: | Castle Airport |
Location: | Atwater, California, United States |
GPS Coordinates: | 37°22'50"N by 120°34'5"W |
Operator/Owner: | Merced County Department of Commerce, Aviation, and Economic Development |
Airport Type: | Public |
Elevation: | 191 feet (58 meters) |
# of Runways: | 1 |
View all routes: | Routes from MER |
More Information: | MER Maps & Info |
Arrival Airport Information:
IATA / ICAO Codes: | SPA / KSPA |
Airport Name: | Spartanburg Downtown Memorial Airport |
Location: | Spartanburg, South Carolina, United States |
GPS Coordinates: | 34°54'56"N by 81°57'23"W |
Airport Type: | Public |
Elevation: | 801 feet (244 meters) |
# of Runways: | 1 |
View all routes: | Routes from SPA |
More Information: | SPA Maps & Info |
Facts about Castle Airport (MER):
- The furthest airport from Castle Airport (MER) is Tôlanaro Airport (FTU), which is located 11,312 miles (18,204 kilometers) away in Tôlanaro, Madagascar.
- Castle Airport (MER) currently has only 1 runway.
- The closest airport to Castle Airport (MER) is Merced Regional Airport (MCE), which is located only 7 miles (12 kilometers) SSE of MER.
- Because of Castle Airport's relatively low elevation of 191 feet, planes can take off or land at Castle 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 2004, recommendations were made to relocate the 129th Rescue Wing of the California Air National Guard and its associated HC-130, MC-130 and HH-60 aircraft from Moffett Federal Airfield to the former Castle Air Force Base, now Castle Airport.
- It serves one school, Sierra Academy of Aeronautics, which specializes in training foreign pilots, from the People's Republic of China.
- With its central location in the San Joaquin Valley, on the route of the proposed California High-Speed Rail system, and with a large, underdeveloped site, Castle Airport has been submitted as a possible location for the central maintenance facility for the system.
- EPA investigations have been completed at multiple areas of contamination including landfills, discharge areas, chemical disposal areas, fire training areas, fuel spill areas, and polychlorinated biphenyl spill areas.
- It was estimated that the cost to relocate the 129 RQW to Castle, to include associated military construction costs, could be recouped in seven years.
Facts about Spartanburg Downtown Memorial Airport (SPA):
- Because of Spartanburg Downtown Memorial Airport's relatively low elevation of 801 feet, planes can take off or land at Spartanburg Downtown Memorial 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 Spartanburg Downtown Memorial Airport (SPA) is Greenville–Spartanburg International Airport (GSP), which is located only 15 miles (24 kilometers) W of SPA.
- Spartanburg Downtown Memorial Airport (SPA) currently has only 1 runway.
- An instrument landing system is available for use on runway 5.
- An FAA operated air traffic control tower was operational at the airport but closed in 1981 during the PATCO controllers strike.
- The furthest airport from Spartanburg Downtown Memorial Airport (SPA) is Margaret River Airport (MGV), which is located 11,463 miles (18,449 kilometers) away in Margaret River, Western Australia, Australia.