Nonstop flight route between Atwater, California, United States and Houston, Texas, United States:
Departure Airport:

Arrival Airport:

Distance from MER to EFD:
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- About this route
- MER Airport Information
- EFD Airport Information
- Facts about MER
- Facts about EFD
- Map of Nearest Airports to MER
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- Map of Furthest Airports from MER
- List of Furthest Airports from MER
- Map of Nearest Airports to EFD
- List of Nearest Airports to EFD
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- List of Furthest Airports from EFD
About this route:
A direct, nonstop flight between Castle Airport (MER), Atwater, California, United States and Ellington Field Joint Reserve BaseEllington Air Force BaseEllington Field (EFD), Houston, Texas, United States would travel a Great Circle distance of 1,554 miles (or 2,500 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 Castle Airport and Ellington Field Joint Reserve BaseEllington Air Force BaseEllington Field, the route shown on this map most likely still appears to be a straight line.
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: | EFD / KEFD |
Airport Names: |
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Location: | Houston, Texas, United States |
GPS Coordinates: | 29°36'25"N by 95°9'32"W |
View all routes: | Routes from EFD |
More Information: | EFD Maps & Info |
Facts about Castle Airport (MER):
- The furthest airport from Castle Airport (MER) is Tôlanaro Airport (FTU), which is located 11,312 miles (18,204 kilometers) away in Tôlanaro, Madagascar.
- The closest airport to Castle Airport (MER) is Merced Regional Airport (MCE), which is located only 7 miles (12 kilometers) SSE of 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.
- Castle Airport (MER) currently has only 1 runway.
- Castle Airport covers an area of 1,360 acres which contains one runway with an 11,802 x 150 ft asphalt and concrete pavement.
- 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.
- Castle Air Museum is 500 yards away, displaying over 50 restored World War II, Korean War, and Cold War era aircraft.
Facts about Ellington Field Joint Reserve BaseEllington Air Force BaseEllington Field (EFD):
- The base, which consisted of a few hangars and some wooden headquarters buildings, was completed in a matter of months.
- In addition to being known as "Ellington Field Joint Reserve BaseEllington Air Force BaseEllington Field", another name for EFD is "Ellington Field JRB".
- The closest airport to Ellington Field Joint Reserve BaseEllington Air Force BaseEllington Field (EFD) is William P. Hobby Airport (HOU), which is located only 8 miles (12 kilometers) WNW of EFD.
- During World War I, Ellington served as an advanced flight training base.
- Ellington Field was also a site for the USAAC Bombardier School, also known as "the Bombardment Academy of the Air." At Ellington Field, officials planned to train 4,480 bombardier cadets per year.
- In 1925 General William Mitchell conducted a "flying tour" of all National Guard Observation Squadrons throughout the United States.
- Radar facilities were activated on 1 February 1953 with the 747th Aircraft Control and Warning Squadron operating a pair of AN/FPS-10 radars The station was designated P-79.
- The furthest airport from Ellington Field Joint Reserve BaseEllington Air Force BaseEllington Field (EFD) is Cocos (Keeling) Island Airport (CCK), which is located 11,008 miles (17,716 kilometers) away in Cocos Islands, Australia.