Nonstop flight route between Napa, California, United States and Seongnam, South Korea:

About this route:

A direct, nonstop flight between Napa County Airport (APC), Napa, California, United States and Seoul Air Base (SSN), Seongnam, South Korea would travel a Great Circle distance of 5,596 miles (or 9,006 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 Seoul Air 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 Seoul Air Base. You'll see that it will travel the same route of the red line on this map!

Departure Airport Information:

Arrival Airport Information:

Facts about Napa County Airport (APC):

• The airport was built by the United States Army Air Forces about 1942, and was known as Napa Flight Strip.
• Napa County Airport (APC) has 3 runways.
• In addition to being known as "Napa County Airport", another name for APC is "Napa Army Airfield".
• The closest airport to Napa County Airport (APC) is Marin County Airport (NOT), which is located only 16 miles (25 kilometers) WSW of APC.
• 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.
• 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.

Facts about Seoul Air Base (SSN):

• The base is used as a VIP airfield by the President of South Korea and other VIPs and heads of state.
• The closest airport to Seoul Air Base (SSN) is Gimpo International Airport (GMP), which is located only 19 miles (31 kilometers) WNW of SSN.
• In addition to being known as "Seoul Air Base", another name for SSN is "서울공항".
• The USAF designated the base at K-16 during the Korean War.
• The furthest airport from Seoul Air Base (SSN) is Capitán de Corbeta Carlos A. Curbelo International Airport (PDP), which is nearly antipodal to Seoul Air Base (meaning Seoul Air Base is almost on the exact opposite side of the Earth from Capitán de Corbeta Carlos A. Curbelo International Airport), and is located 12,220 miles (19,665 kilometers) away in Maldonado/Punta del Este, Maldonado, Uruguay.
• Seoul Air Base It is located in Seongnam city, right below Seoul.
• Seoul Air Base (SSN) has 2 runways.
• The US Army's 2nd Battalion, 2nd Aviation Regiment, 2nd Infantry Division operating Sikorsky UH-60 Blackhawks is based there.
• Because of Seoul Air Base's relatively low elevation of 92 feet, planes can take off or land at Seoul Air 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.