Nonstop flight route between Atwater, California, United States and San Antonio, Texas, United States:
Departure Airport:

Arrival Airport:

Distance from MER to SAT:
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- About this route
- MER Airport Information
- SAT Airport Information
- Facts about MER
- Facts about SAT
- 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 SAT
- List of Nearest Airports to SAT
- Map of Furthest Airports from SAT
- List of Furthest Airports from SAT
About this route:
A direct, nonstop flight between Castle Airport (MER), Atwater, California, United States and San Antonio International Airport (SAT), San Antonio, Texas, United States would travel a Great Circle distance of 1,380 miles (or 2,221 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 Antonio International 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: | SAT / KSAT |
Airport Name: | San Antonio International Airport |
Location: | San Antonio, Texas, United States |
GPS Coordinates: | 29°31'36"N by 98°28'18"W |
Area Served: | San Antonio–New Braunfels |
Operator/Owner: | City of San Antonio |
Airport Type: | Public |
Elevation: | 809 feet (247 meters) |
# of Runways: | 3 |
View all routes: | Routes from SAT |
More Information: | SAT 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.
- It serves one school, Sierra Academy of Aeronautics, which specializes in training foreign pilots, from the People's Republic of China.
- 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 Airport (MER) currently has only 1 runway.
- The furthest airport from Castle Airport (MER) is Tôlanaro Airport (FTU), which is located 11,312 miles (18,204 kilometers) away in Tôlanaro, Madagascar.
- 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.
- 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 San Antonio International Airport (SAT):
- San Antonio International Airport handled 8,034,720 passengers last year.
- Airport diagram for March 1962
- San Antonio International Airport (SAT) has 3 runways.
- The longest flight from San Antonio International Airport is to Seattle–Tacoma International Airport, a distance of 1,776 miles, with an average duration of 4 hours 7 minutes.
- The 77th Reconnaissance Group, equipped with various aircraft trained reconnaissance personnel who later served overseas.
- In 2011, airport passenger traffic was up 1.7% over 2010.
- The furthest airport from San Antonio International Airport (SAT) is Sir Gaëtan Duval Airport (RRG), which is located 11,114 miles (17,886 kilometers) away in Rodrigues Island, Mauritius.
- San Antonio International Airport is owned by the City of San Antonio and operated by the San Antonio Aviation Department.
- On November 9, 2010, Terminal 2 closed, and the new Terminal B was opened.
- The closest airport to San Antonio International Airport (SAT) is Randolph Air Force Base Joint Base San Antonio (RND), which is located only 12 miles (19 kilometers) E of SAT.
- Because of San Antonio International Airport's relatively low elevation of 809 feet, planes can take off or land at San Antonio International 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.