Nonstop flight route between Atwater, California, United States and San Luis Obispo, California, United States:
Departure Airport:

Arrival Airport:

Distance from MER to SBP:
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- About this route
- MER Airport Information
- SBP Airport Information
- Facts about MER
- Facts about SBP
- 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 SBP
- List of Nearest Airports to SBP
- Map of Furthest Airports from SBP
- List of Furthest Airports from SBP
About this route:
A direct, nonstop flight between Castle Airport (MER), Atwater, California, United States and San Luis Obispo County Regional Airport (SBP), San Luis Obispo, California, United States would travel a Great Circle distance of 148 miles (or 238 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 San Luis Obispo County Regional 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: | SBP / KSBP |
Airport Names: |
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Location: | San Luis Obispo, California, United States |
GPS Coordinates: | 35°14'12"N by 120°38'30"W |
Operator/Owner: | San Luis Obispo County |
Airport Type: | Public |
Elevation: | 212 feet (65 meters) |
# of Runways: | 2 |
View all routes: | Routes from SBP |
More Information: | SBP Maps & Info |
Facts about Castle Airport (MER):
- The EPA currently has this base listed on their database due to the bulk wastes such as solvents, oils, fuels, and sludges which were disposed in pits at landfills around the base until 1977.
- 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.
- 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.
- Castle Air Museum is 500 yards away, displaying over 50 restored World War II, Korean War, and Cold War era aircraft.
- The closest airport to Castle Airport (MER) is Merced Regional Airport (MCE), which is located only 7 miles (12 kilometers) SSE of MER.
Facts about San Luis Obispo County Regional Airport (SBP):
- The furthest airport from San Luis Obispo County Regional Airport (SBP) is Pierrefonds Airport (ZSE), which is located 11,446 miles (18,421 kilometers) away in Saint-Pierre, Réunion.
- The closest airport to San Luis Obispo County Regional Airport (SBP) is O'Sullivan Army Heliport (CSL), which is located only 8 miles (14 kilometers) NW of SBP.
- Because of San Luis Obispo County Regional Airport's relatively low elevation of 212 feet, planes can take off or land at San Luis Obispo County Regional 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.
- San Luis Obispo County Regional Airport (SBP) has 2 runways.
- In addition to being known as "San Luis Obispo County Regional Airport", another name for SBP is "McChesney Field".
- The federal government took over the airport during World War II and turned control back to the county in 1946.
- In 1987 the San Luis Obispo County Regional Airport was dedicated as McChesney Field, in honor of Leroy E.