Nonstop flight route between Rockland, Maine, United States and Frederick, Maryland, United States:
Departure Airport:

Arrival Airport:

Distance from RKD to FDK:
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- About this route
- RKD Airport Information
- FDK Airport Information
- Facts about RKD
- Facts about FDK
- 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 FDK
- List of Nearest Airports to FDK
- Map of Furthest Airports from FDK
- List of Furthest Airports from FDK
About this route:
A direct, nonstop flight between Knox County Regional Airport (RKD), Rockland, Maine, United States and Frederick Municipal Airport (FDK), Frederick, Maryland, United States would travel a Great Circle distance of 533 miles (or 858 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 Frederick Municipal Airport, 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: | FDK / KFDK |
Airport Name: | Frederick Municipal Airport |
Location: | Frederick, Maryland, United States |
GPS Coordinates: | 39°25'2"N by 77°22'27"W |
Operator/Owner: | City of Frederick |
Airport Type: | Public |
Elevation: | 303 feet (92 meters) |
# of Runways: | 2 |
View all routes: | Routes from FDK |
More Information: | FDK Maps & Info |
Facts about Knox County Regional Airport (RKD):
- During the summer months, the airport is one of Maine's busiest, with significant private jet operations bringing visitors to the numerous summer colonies in the Penobscot Bay region.
- 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.
- Knox County Regional Airport (RKD) has 2 runways.
- 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.
- 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.
- The closest airport to Knox County Regional Airport (RKD) is Wiscasset Airport (ISS), which is located 31 miles (50 kilometers) WSW of RKD.
Facts about Frederick Municipal Airport (FDK):
- On May 11, 2005, a single engine Cessna that flew into restricted air space around Washington, D.C.
- Frederick Municipal Airport (FDK) has 2 runways.
- Frederick Municipal Airport is classified as a general aviation airport.
- Because of Frederick Municipal Airport's relatively low elevation of 303 feet, planes can take off or land at Frederick Municipal 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.
- Frederick Municipal Airport is a public airport located in the city of Frederick, in Frederick County, Maryland, United States.
- The closest airport to Frederick Municipal Airport (FDK) is Montgomery County Airpark (GAI), which is located 21 miles (33 kilometers) SSE of FDK.
- The furthest airport from Frederick Municipal Airport (FDK) is Margaret River Airport (MGV), which is located 11,649 miles (18,748 kilometers) away in Margaret River, Western Australia, Australia.