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

Arrival Airport:

Distance from SFO to MER:
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- About this route
- SFO Airport Information
- MER Airport Information
- Facts about SFO
- Facts about MER
- Map of Nearest Airports to SFO
- List of Nearest Airports to SFO
- Map of Furthest Airports from SFO
- List of Furthest Airports from SFO
- Map of Nearest Airports to MER
- List of Nearest Airports to MER
- Map of Furthest Airports from MER
- List of Furthest Airports from MER
About this route:
A direct, nonstop flight between San Francisco International Airport (SFO), San Francisco, California, United States and Castle Airport (MER), Atwater, California, United States would travel a Great Circle distance of 100 miles (or 162 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 San Francisco International Airport and Castle Airport, the route shown on this map most likely still appears to be a straight line.
Departure Airport Information:
IATA / ICAO Codes: | SFO / KSFO |
Airport Name: | San Francisco International Airport |
Location: | San Francisco, California, United States |
GPS Coordinates: | 37°37'8"N by 122°22'30"W |
Area Served: | San Francisco |
Operator/Owner: | City & County of San Francisco |
Airport Type: | Public |
Elevation: | 13 feet (4 meters) |
# of Runways: | 4 |
View all routes: | Routes from SFO |
More Information: | SFO Maps & Info |
Arrival 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 |
Facts about San Francisco International Airport (SFO):
- San Francisco International Airport handled 44,477,209 passengers last year.
- On July 14, 2008, SFO was voted Best International Airport in North America for 2008 in the World Airports Survey by Skytrax.
- SFO has expanded through the decades.
- The furthest airport from San Francisco International Airport (SFO) is Tôlanaro Airport (FTU), which is located 11,365 miles (18,290 kilometers) away in Tôlanaro, Madagascar.
- SFO was one of several US airports which operated the Registered Traveler program from April 2007 until funding ended in June 2009, which had allowed travelers to pass through security checkpoints quickly.
- Formerly known as the "North Terminal," Terminal 3 has Boarding Area E and Boarding Area F has 26 gates.
- The first international nonstops were ANA/BCPA DC-4s to Vancouver in 1946-47.
- The closest airport to San Francisco International Airport (SFO) is Half Moon Bay AirportHalf Moon Bay Flight Strip (HAF), which is located only 10 miles (16 kilometers) SW of SFO.
- San Francisco International Airport (SFO) has 4 runways.
- Because of San Francisco International Airport's relatively low elevation of 13 feet, planes can take off or land at San Francisco 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.
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.
- 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.
- 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.