Nonstop flight route between Atwater, California, United States and Christiansted, Saint Croix, United States Virgin Islands:
Departure Airport:

Arrival Airport:

Distance from MER to STX:
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- About this route
- MER Airport Information
- STX Airport Information
- Facts about MER
- Facts about STX
- 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 STX
- List of Nearest Airports to STX
- Map of Furthest Airports from STX
- List of Furthest Airports from STX
About this route:
A direct, nonstop flight between Castle Airport (MER), Atwater, California, United States and Henry E. Rohlsen International Airport (STX), Christiansted, Saint Croix, United States Virgin Islands would travel a Great Circle distance of 3,619 miles (or 5,824 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 Henry E. Rohlsen International 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 Henry E. Rohlsen International 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: | STX / TISX |
Airport Name: | Henry E. Rohlsen International Airport |
Location: | Christiansted, Saint Croix, United States Virgin Islands |
GPS Coordinates: | 17°42'15"N by 64°48'6"W |
Area Served: | St. Croix, United States Virgin Islands |
Operator/Owner: | United States Port Authority |
Airport Type: | Public |
Elevation: | 74 feet (23 meters) |
# of Runways: | 1 |
View all routes: | Routes from STX |
More Information: | STX 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.
- 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.
- Castle Airport covers an area of 1,360 acres which contains one runway with an 11,802 x 150 ft asphalt and concrete pavement.
- 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.
Facts about Henry E. Rohlsen International Airport (STX):
- During World War II, the United States Army Air Forces Sixth Air Force stationed the 12th Bombardment Squadron at the airport for antisubmarine patrols flying B-18 Bolo aircraft from November 8, 1941 to November 10, 1942.
- Henry E. Rohlsen International Airport (STX) currently has only 1 runway.
- The furthest airport from Henry E. Rohlsen International Airport (STX) is Barrow Island Airport (BWB), which is nearly antipodal to Henry E. Rohlsen International Airport (meaning Henry E. Rohlsen International Airport is almost on the exact opposite side of the Earth from Barrow Island Airport), and is located 12,218 miles (19,663 kilometers) away in Barrow Island, Western Australia, Australia.
- Because of Henry E. Rohlsen International Airport's relatively low elevation of 74 feet, planes can take off or land at Henry E. Rohlsen 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.
- The closest airport to Henry E. Rohlsen International Airport (STX) is Christiansted Harbor Seaplane Base (SSB), which is located only 7 miles (11 kilometers) ENE of STX.