Nonstop flight route between Rockland, Maine, United States and Palo Alto, California, United States:
Departure Airport:

Arrival Airport:

Distance from RKD to PAO:
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- About this route
- RKD Airport Information
- PAO Airport Information
- Facts about RKD
- Facts about PAO
- 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 PAO
- List of Nearest Airports to PAO
- Map of Furthest Airports from PAO
- List of Furthest Airports from PAO
About this route:
A direct, nonstop flight between Knox County Regional Airport (RKD), Rockland, Maine, United States and Palo Alto Airport of Santa Clara County (PAO), Palo Alto, California, United States would travel a Great Circle distance of 2,763 miles (or 4,447 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 Knox County Regional Airport and Palo Alto Airport of Santa Clara County, 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 Knox County Regional Airport and Palo Alto Airport of Santa Clara County. You'll see that it will travel the same route of the red line on this map!
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: | PAO / KPAO |
Airport Name: | Palo Alto Airport of Santa Clara County |
Location: | Palo Alto, California, United States |
GPS Coordinates: | 37°27'39"N by 122°6'53"W |
Operator/Owner: | County of Santa Clara |
Airport Type: | Public |
Elevation: | 4 feet (1 meters) |
# of Runways: | 1 |
View all routes: | Routes from PAO |
More Information: | PAO Maps & Info |
Facts about Knox County Regional Airport (RKD):
- 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.
- After the war, it was operated by the City of Rockland until 1968.
- 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.
- Knox County Regional Airport (RKD) has 2 runways.
Facts about Palo Alto Airport of Santa Clara County (PAO):
- The closest airport to Palo Alto Airport of Santa Clara County (PAO) is Moffett Federal Airfield (NUQ), which is located only 5 miles (8 kilometers) SE of PAO.
- Because of Palo Alto Airport of Santa Clara County's relatively low elevation of 4 feet, planes can take off or land at Palo Alto Airport of Santa Clara County 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.
- Facilities at this busy towered airport include multiple aircraft repair shops and a staffed terminal including West Valley Flight Club, Advanced Flyers, Peninsula Avionics, Sundance Flying Club, Stanford Flying Club, Rossi Aircraft, and Palo Alto Fuel Service.
- Palo Alto Airport of Santa Clara County (PAO) currently has only 1 runway.
- Palo Alto Airport of Santa Clara County covers 102 acres and has one asphalt paved runway measuring 2,443 × 70 ft.
- The furthest airport from Palo Alto Airport of Santa Clara County (PAO) is Tôlanaro Airport (FTU), which is located 11,365 miles (18,289 kilometers) away in Tôlanaro, Madagascar.
- Fifteen miles of hiking and biking trails, affording multiple opportunities for birdwatching, form part of the adjacent 1,940-acre Palo Alto Baylands Nature Preserve.
- The airport was opened to the public in April 1940.