Nonstop flight route between Napa, California, United States and Charlotte Amalie, Saint Thomas, U.S. Virgin Islands:
Departure Airport:

Arrival Airport:

Distance from APC to SPB:
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- About this route
- APC Airport Information
- SPB Airport Information
- Facts about APC
- Facts about SPB
- Map of Nearest Airports to APC
- List of Nearest Airports to APC
- Map of Furthest Airports from APC
- List of Furthest Airports from APC
- Map of Nearest Airports to SPB
- List of Nearest Airports to SPB
- Map of Furthest Airports from SPB
- List of Furthest Airports from SPB
About this route:
A direct, nonstop flight between Napa County Airport (APC), Napa, California, United States and Charlotte Amalie Harbor Seaplane Base (SPB), Charlotte Amalie, Saint Thomas, U.S. Virgin Islands would travel a Great Circle distance of 3,685 miles (or 5,931 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 Napa County Airport and Charlotte Amalie Harbor Seaplane Base, 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 Napa County Airport and Charlotte Amalie Harbor Seaplane Base. You'll see that it will travel the same route of the red line on this map!
Departure Airport Information:
IATA / ICAO Codes: | APC / KAPC |
Airport Names: |
|
Location: | Napa, California, United States |
GPS Coordinates: | 38°12'47"N by 122°16'50"W |
Operator/Owner: | Napa County |
Airport Type: | Public Public Works |
Elevation: | 35 feet (11 meters) |
# of Runways: | 3 |
View all routes: | Routes from APC |
More Information: | APC Maps & Info |
Arrival Airport Information:
IATA / ICAO Codes: | SPB / |
Airport Names: |
|
Location: | Charlotte Amalie, Saint Thomas, U.S. Virgin Islands |
GPS Coordinates: | 18°20'18"N by 64°56'26"W |
Operator/Owner: | Virgin Islands Port Authority |
Airport Type: | Private |
Elevation: | 0 feet (0 meters) |
# of Runways: | 2 |
View all routes: | Routes from SPB |
More Information: | SPB Maps & Info |
Facts about Napa County Airport (APC):
- Napa County Airport is a public airport five miles south of Napa, in Napa County, California.
- The airport was built by the United States Army Air Forces about 1942, and was known as Napa Flight Strip.
- The closest airport to Napa County Airport (APC) is Marin County Airport (NOT), which is located only 16 miles (25 kilometers) WSW of APC.
- Because of Napa County Airport's relatively low elevation of 35 feet, planes can take off or land at Napa County 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 addition to being known as "Napa County Airport", another name for APC is "Napa Army Airfield".
- The furthest airport from Napa County Airport (APC) is Tôlanaro Airport (FTU), which is located 11,330 miles (18,233 kilometers) away in Tôlanaro, Madagascar.
- Napa County Airport (APC) has 3 runways.
Facts about Charlotte Amalie Harbor Seaplane Base (SPB):
- The closest airport to Charlotte Amalie Harbor Seaplane Base (SPB) is Cyril E. King Airport (STT), which is located only 2 miles (3 kilometers) W of SPB.
- Because of Charlotte Amalie Harbor Seaplane Base's relatively low elevation of 0 feet, planes can take off or land at Charlotte Amalie Harbor Seaplane Base 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 addition to being known as "Charlotte Amalie Harbor Seaplane Base", other names for SPB include "St. Thomas Seaplane Base" and "VI22".
- The furthest airport from Charlotte Amalie Harbor Seaplane Base (SPB) is Barrow Island Airport (BWB), which is nearly antipodal to Charlotte Amalie Harbor Seaplane Base (meaning Charlotte Amalie Harbor Seaplane Base is almost on the exact opposite side of the Earth from Barrow Island Airport), and is located 12,261 miles (19,732 kilometers) away in Barrow Island, Western Australia, Australia.
- Charlotte Amalie Harbor Seaplane Base (SPB) has 2 runways.