Nonstop flight route between Rockland, Maine, United States and Houston, Texas, United States:
Departure Airport:

Arrival Airport:

Distance from RKD to EFD:
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- About this route
- RKD Airport Information
- EFD Airport Information
- Facts about RKD
- Facts about EFD
- Map of Nearest Airports to RKD
- List of Nearest Airports to RKD
- Map of Furthest Airports from RKD
- List of Furthest Airports from RKD
- Map of Nearest Airports to EFD
- List of Nearest Airports to EFD
- Map of Furthest Airports from EFD
- List of Furthest Airports from EFD
About this route:
A direct, nonstop flight between Knox County Regional Airport (RKD), Rockland, Maine, United States and Ellington Field Joint Reserve BaseEllington Air Force BaseEllington Field (EFD), Houston, Texas, United States would travel a Great Circle distance of 1,741 miles (or 2,802 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 Knox County Regional 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: | RKD / KRKD |
Airport Name: | Knox County Regional Airport |
Location: | Rockland, Maine, United States |
GPS Coordinates: | 44°3'36"N by 69°5'57"W |
Area Served: | Rockland, Maine |
Operator/Owner: | Knox County |
Airport Type: | Public |
Elevation: | 56 feet (17 meters) |
# of Runways: | 2 |
View all routes: | Routes from RKD |
More Information: | RKD 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 Knox County Regional Airport (RKD):
- The airport was built during World War II and became locally known as the "Ash Point Naval Air Station" while officially operating as Rockland Naval Auxiliary Air Facility from April 15, 1943 until February 1, 1946.
- After the war, it was operated by the City of Rockland until 1968.
- The furthest airport from Knox County Regional Airport (RKD) is Albany Airport (ALH), which is located 11,708 miles (18,842 kilometers) away in Albany, Western Australia, Australia.
- Because of Knox County Regional Airport's relatively low elevation of 56 feet, planes can take off or land at Knox County 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 closest airport to Knox County Regional Airport (RKD) is Wiscasset Airport (ISS), which is located 31 miles (50 kilometers) WSW of RKD.
- Knox County Regional Airport (RKD) has 2 runways.
Facts about Ellington Field Joint Reserve BaseEllington Air Force BaseEllington Field (EFD):
- Ellington Field Joint Reserve Base is a joint installation shared by various active component and reserve component military units, as well as aircraft flight operations of the National Aeronautics and Space Administration under the aegis of the nearby Johnson Space Center.
- 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 May 1923, the War Department had ordered the small caretaker force at Ellington Field to dismantle all remaining structures and to sell them as surplus.
- The base, which consisted of a few hangars and some wooden headquarters buildings, was completed in a matter of months.
- 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.
- In 1952, Air Training Command expanded the training program at Ellington with the establishment of a multi-engine flying training program as part of Flying Training Air Force.
- Also the possibility of a new municipal airfield endangered the existence of Ellington Field, rumors circulated throughout the Texas National Guard that the War Department wanted to transfer the aviation schools at Kelly and Brooks Fields to Houston.
- In addition to being known as "Ellington Field Joint Reserve BaseEllington Air Force BaseEllington Field", another name for EFD is "Ellington Field JRB".
- 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.