Nonstop flight route between Atwater, California, United States and San José, Costa Rica:
Departure Airport:

Arrival Airport:

Distance from MER to SJO:
Share this route:
Jump to:
- About this route
- MER Airport Information
- SJO Airport Information
- Facts about MER
- Facts about SJO
- 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 SJO
- List of Nearest Airports to SJO
- Map of Furthest Airports from SJO
- List of Furthest Airports from SJO
About this route:
A direct, nonstop flight between Castle Airport (MER), Atwater, California, United States and Juan Santamaría International Airport (SJO) (SJO), San José, Costa Rica would travel a Great Circle distance of 2,946 miles (or 4,742 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 Juan Santamaría International Airport (SJO), 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 Juan Santamaría International Airport (SJO). 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: | SJO / MROC |
Airport Names: |
|
Location: | San José, Costa Rica |
GPS Coordinates: | 9°59'38"N by 84°12'32"W |
Area Served: | San José, Alajuela, Heredia, Cartago |
Operator/Owner: | Government of Costa Rica |
Airport Type: | Public |
Elevation: | 3022 feet (921 meters) |
# of Runways: | 1 |
View all routes: | Routes from SJO |
More Information: | SJO Maps & Info |
Facts about Castle Airport (MER):
- The airport is located at the former Castle Air Force Base which closed in 1995.
- 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.
- It was estimated that the cost to relocate the 129 RQW to Castle, to include associated military construction costs, could be recouped in seven years.
- Since the mid-1940s, aircraft maintenance, fuel management, and fire training activities on the base have generated wastes that consist primarily of waste fuels, oils, solvents, and cleaners.
- The furthest airport from Castle Airport (MER) is Tôlanaro Airport (FTU), which is located 11,312 miles (18,204 kilometers) away in Tôlanaro, Madagascar.
- 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.
Facts about Juan Santamaría International Airport (SJO) (SJO):
- Only passengers that show a ticket are allowed to enter the terminal.
- Terminal buildings and main runway, 2003
- Licensed taxis are available in the airport and will generally accept both colones and U.S.
- In addition to being known as "Juan Santamaría International Airport (SJO)", another name for SJO is "Aeropuerto Internacional Juan Santamaría".
- Juan Santamaría International Airport (SJO) (SJO) currently has only 1 runway.
- Juan Santamaría International Airport (SJO) handled 4,257,606 passengers last year.
- All domestic flights depart from the Domestic Terminal.
- The furthest airport from Juan Santamaría International Airport (SJO) (SJO) is Cocos (Keeling) Island Airport (CCK), which is nearly antipodal to Juan Santamaría International Airport (SJO) (meaning Juan Santamaría International Airport (SJO) is almost on the exact opposite side of the Earth from Cocos (Keeling) Island Airport), and is located 12,270 miles (19,746 kilometers) away in Cocos Islands, Australia.
- The closest airport to Juan Santamaría International Airport (SJO) (SJO) is Tobías Bolaños International Airport (SYQ), which is located only 5 miles (9 kilometers) ESE of SJO.