Nonstop flight route between Atwater, California, United States and Paso Robles, California, United States:
Departure Airport:

Arrival Airport:

Distance from MER to PRB:
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- About this route
- MER Airport Information
- PRB Airport Information
- Facts about MER
- Facts about PRB
- 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 PRB
- List of Nearest Airports to PRB
- Map of Furthest Airports from PRB
- List of Furthest Airports from PRB
About this route:
A direct, nonstop flight between Castle Airport (MER), Atwater, California, United States and Paso Robles Municipal AirportEstrella Army Airfield (PRB), Paso Robles, California, United States would travel a Great Circle distance of 118 miles (or 190 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 Paso Robles Municipal AirportEstrella Army Airfield, 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: | PRB / KPRB |
Airport Name: | Paso Robles Municipal AirportEstrella Army Airfield |
Location: | Paso Robles, California, United States |
GPS Coordinates: | 35°40'22"N by 120°37'36"W |
Area Served: | Paso Robles Regional Area |
Operator/Owner: | City of Paso Robles |
Airport Type: | Public |
Elevation: | 836 feet (255 meters) |
# of Runways: | 2 |
View all routes: | Routes from PRB |
More Information: | PRB Maps & Info |
Facts about Castle Airport (MER):
- 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.
- 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.
- Since the mid-1940s, aircraft maintenance, fuel management, and fire training activities on the base have generated wastes that consist primarily of waste fuels, oils, solvents, and cleaners.
- It serves one school, Sierra Academy of Aeronautics, which specializes in training foreign pilots, from the People's Republic of China.
- 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.
- Castle Airport covers an area of 1,360 acres which contains one runway with an 11,802 x 150 ft asphalt and concrete pavement.
Facts about Paso Robles Municipal AirportEstrella Army Airfield (PRB):
- The furthest airport from Paso Robles Municipal AirportEstrella Army Airfield (PRB) is Pierrefonds Airport (ZSE), which is located 11,417 miles (18,374 kilometers) away in Saint-Pierre, Réunion.
- Because of Paso Robles Municipal AirportEstrella Army Airfield's relatively low elevation of 836 feet, planes can take off or land at Paso Robles Municipal AirportEstrella Army Airfield 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.
- After the termination of airline flights at Estrella Airfield in 1973 the county, in an effort to rid its rolls of excess property, sold the air base to the City of Paso Robles for $1.00.
- Paso Robles Municipal AirportEstrella Army Airfield (PRB) has 2 runways.
- Paso Robles Municipal Airport is a public airport four miles northeast of downtown Paso Robles, in San Luis Obispo County, California.
- The closest airport to Paso Robles Municipal AirportEstrella Army Airfield (PRB) is Roberts Army Heliport (SYL), which is located only 12 miles (19 kilometers) NNW of PRB.