Nonstop flight route between Atwater, California, United States and Sanford, Maine, United States:
Departure Airport:

Arrival Airport:

Distance from MER to SFM:
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- About this route
- MER Airport Information
- SFM Airport Information
- Facts about MER
- Facts about SFM
- 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 SFM
- List of Nearest Airports to SFM
- Map of Furthest Airports from SFM
- List of Furthest Airports from SFM
About this route:
A direct, nonstop flight between Castle Airport (MER), Atwater, California, United States and Sanford Seacoast Regional Airport (SFM), Sanford, Maine, United States would travel a Great Circle distance of 2,617 miles (or 4,212 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 Sanford Seacoast Regional 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 Sanford Seacoast Regional 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: | SFM / KSFM |
Airport Name: | Sanford Seacoast Regional Airport |
Location: | Sanford, Maine, United States |
GPS Coordinates: | 43°23'38"N by 70°42'29"W |
Operator/Owner: | Town of Sanford |
Airport Type: | Public |
Elevation: | 244 feet (74 meters) |
# of Runways: | 2 |
View all routes: | Routes from SFM |
More Information: | SFM 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.
- 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.
- 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 covers an area of 1,360 acres which contains one runway with an 11,802 x 150 ft asphalt and concrete pavement.
- 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.
- 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.
- Castle Airport is a public use airport located seven nautical miles northwest of the central business district of Merced, a city in Merced County, California, United States.
Facts about Sanford Seacoast Regional Airport (SFM):
- Because of Sanford Seacoast Regional Airport's relatively low elevation of 244 feet, planes can take off or land at Sanford Seacoast 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.
- The furthest airport from Sanford Seacoast Regional Airport (SFM) is Margaret River Airport (MGV), which is located 11,712 miles (18,849 kilometers) away in Margaret River, Western Australia, Australia.
- The closest airport to Sanford Seacoast Regional Airport (SFM) is Portsmouth International Airport at Pease (PSM), which is located 23 miles (36 kilometers) SSW of SFM.
- Sanford Seacoast Regional Airport (SFM) has 2 runways.