Nonstop flight route between Atwater, California, United States and Butterworth, South Africa:
Departure Airport:

Arrival Airport:

Distance from MER to UTE:
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- About this route
- MER Airport Information
- UTE Airport Information
- Facts about MER
- Facts about UTE
- 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 UTE
- List of Nearest Airports to UTE
- Map of Furthest Airports from UTE
- List of Furthest Airports from UTE
About this route:
A direct, nonstop flight between Castle Airport (MER), Atwater, California, United States and RMAF Butterworth (UTE), Butterworth, South Africa would travel a Great Circle distance of 8,474 miles (or 13,638 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 Castle Airport and RMAF Butterworth, 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 Castle Airport and RMAF Butterworth. You'll see that it will travel the same route of the red line on this map!
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: | UTE / FABU |
Airport Names: |
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Location: | Butterworth, South Africa |
GPS Coordinates: | 5°27'57"N by 100°23'27"E |
Operator/Owner: | Ministry of Defence (Malaysia) |
Airport Type: | Military |
Elevation: | 8 feet (2 meters) |
# of Runways: | 1 |
View all routes: | Routes from UTE |
More Information: | UTE Maps & Info |
Facts about Castle Airport (MER):
- It serves one school, Sierra Academy of Aeronautics, which specializes in training foreign pilots, from the People's Republic of China.
- 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.
- The airport is located at the former Castle Air Force Base which closed in 1995.
- 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.
- 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.
- 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.
Facts about RMAF Butterworth (UTE):
- The closest airport to RMAF Butterworth (UTE) is RMAF Butterworth (BWH), which is located only 0 mile (0 kilometer) N of UTE.
- In addition to being known as "RMAF Butterworth", other names for UTE include "TUDM Butterworth", "BWH" and "WMKB".
- In 1957, the RAF closed the station and it was transferred to the Royal Australian Air Force and it was promptly renamed as RAAF Station Butterworth, becoming the home to numerous Australian fighter and bomber squadrons stationed in Malaya during the Cold War era.
- On 30 June 1988, the airfield was handed over by RAAF to the Royal Malaysian Air Force and was renamed as RMAF Station Butterworth.
- The furthest airport from RMAF Butterworth (UTE) is Cap. FAP Guillermo Concha Iberico International Airport (PIU), which is nearly antipodal to RMAF Butterworth (meaning RMAF Butterworth is almost on the exact opposite side of the Earth from Cap. FAP Guillermo Concha Iberico International Airport), and is located 12,365 miles (19,900 kilometers) away in Piura, Peru.
- RMAF Butterworth (UTE) currently has only 1 runway.
- Because of RMAF Butterworth's relatively low elevation of 8 feet, planes can take off or land at RMAF Butterworth 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.