Nonstop flight route between Atwater, California, United States and Santa Rosa, El Oro, Ecuador:
Departure Airport:

Arrival Airport:

Distance from MER to ETR:
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- About this route
- MER Airport Information
- ETR Airport Information
- Facts about MER
- Facts about ETR
- 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 ETR
- List of Nearest Airports to ETR
- Map of Furthest Airports from ETR
- List of Furthest Airports from ETR
About this route:
A direct, nonstop flight between Castle Airport (MER), Atwater, California, United States and Santa Rosa International Airport (ETR), Santa Rosa, El Oro, Ecuador would travel a Great Circle distance of 3,837 miles (or 6,175 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 Santa Rosa 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 Santa Rosa 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: | ETR / SERO |
Airport Names: |
|
Location: | Santa Rosa, El Oro, Ecuador |
GPS Coordinates: | 3°26'7"S by 79°58'40"W |
Area Served: | Machala |
Elevation: | 170 feet (52 meters) |
# of Runways: | 1 |
View all routes: | Routes from ETR |
More Information: | ETR 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.
- In 2004, recommendations were made to relocate the 129th Rescue Wing of the California Air National Guard and its associated HC-130, MC-130 and HH-60 aircraft from Moffett Federal Airfield to the former Castle Air Force Base, now Castle Airport.
- 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.
- 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 closest airport to Castle Airport (MER) is Merced Regional Airport (MCE), which is located only 7 miles (12 kilometers) SSE of MER.
Facts about Santa Rosa International Airport (ETR):
- In addition to being known as "Santa Rosa International Airport", another name for ETR is "Aeropuerto Internacional de Santa Rosa".
- The furthest airport from Santa Rosa International Airport (ETR) is Sitiawan Airport (SWY), which is nearly antipodal to Santa Rosa International Airport (meaning Santa Rosa International Airport is almost on the exact opposite side of the Earth from Sitiawan Airport), and is located 12,365 miles (19,900 kilometers) away in Perak, Malaysia.
- Because of Santa Rosa International Airport's relatively low elevation of 170 feet, planes can take off or land at Santa Rosa 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.
- Santa Rosa International Airport (ETR) currently has only 1 runway.
- The closest airport to Santa Rosa International Airport (ETR) is Cap. FAP Pedro Canga Rodríguez Airport (TBP), which is located 29 miles (47 kilometers) WSW of ETR.