Nonstop flight route between Atwater, California, United States and Asosa, Ethiopia:
Departure Airport:

Arrival Airport:

Distance from MER to ASO:
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- About this route
- MER Airport Information
- ASO Airport Information
- Facts about MER
- Facts about ASO
- 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 ASO
- List of Nearest Airports to ASO
- Map of Furthest Airports from ASO
- List of Furthest Airports from ASO
About this route:
A direct, nonstop flight between Castle Airport (MER), Atwater, California, United States and Asosa Airport (ASO), Asosa, Ethiopia would travel a Great Circle distance of 8,788 miles (or 14,143 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 Asosa 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 Castle Airport and Asosa Airport. 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: | ASO / HASO |
Airport Name: | Asosa Airport |
Location: | Asosa, Ethiopia |
GPS Coordinates: | 10°1'5"N by 34°35'9"E |
Area Served: | Asosa, Ethiopia |
Operator/Owner: | Ethiopian Airports Enterprise |
Airport Type: | Public |
Elevation: | 5121 feet (1,561 meters) |
# of Runways: | 1 |
View all routes: | Routes from ASO |
More Information: | ASO Maps & Info |
Facts about Castle Airport (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 furthest airport from Castle Airport (MER) is Tôlanaro Airport (FTU), which is located 11,312 miles (18,204 kilometers) away in Tôlanaro, Madagascar.
- 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.
- 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.
- 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.
- Castle Airport (MER) currently has only 1 runway.
- 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.
Facts about Asosa Airport (ASO):
- The closest airport to Asosa Airport (ASO) is Beica Airport (BEI), which is located 44 miles (70 kilometers) S of ASO.
- Because of Asosa Airport's high elevation of 5,121 feet, planes must typically fly at a faster airspeed in order to takeoff or land at ASO. Combined with a high temperature, this could make ASO a "Hot & High" airport, where the air density is lower than it would otherwise be at sea level.
- Asosa Airport (ASO) currently has only 1 runway.
- The furthest airport from Asosa Airport (ASO) is Manihi Airport (XMH), which is nearly antipodal to Asosa Airport (meaning Asosa Airport is almost on the exact opposite side of the Earth from Manihi Airport), and is located 12,128 miles (19,518 kilometers) away in Manihi, French Polynesia.