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

About this route:

A direct, nonstop flight between Seoul Air Base (SSN), Seongnam, South Korea and Buchanan FieldConcord Army Air Base (CCR), Concord, California, United States would travel a Great Circle distance of 5,615 miles (or 9,037 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 Seoul Air Base and Buchanan FieldConcord Army 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 Seoul Air Base and Buchanan FieldConcord Army 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 Seoul Air Base (SSN):

• 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.
• The closest airport to Seoul Air Base (SSN) is Gimpo International Airport (GMP), which is located only 19 miles (31 kilometers) WNW of SSN.
• 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.
• In addition to being known as "Seoul Air Base", another name for SSN is "서울공항".
• 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.
• The USAF designated the base at K-16 during the Korean War.

Facts about Buchanan FieldConcord Army Air Base (CCR):

• Another plane crashed on April 13, 2004, shortly after leaving Buchanan Field.
• The closest airport to Buchanan FieldConcord Army Air Base (CCR) is Napa County Airport (APC), which is located only 20 miles (32 kilometers) NW of CCR.
• In 1946 the War Assets Administration returned the airport to the County.
• The furthest airport from Buchanan FieldConcord Army Air Base (CCR) is Tôlanaro Airport (FTU), which is located 11,334 miles (18,241 kilometers) away in Tôlanaro, Madagascar.
• Buchanan FieldConcord Army Air Base (CCR) has 4 runways.
• Commuter airline flights to San Francisco International Airport with small prop aircraft started in 1969, but were gone by 1980.
• Because of Buchanan FieldConcord Army Air Base's relatively low elevation of 26 feet, planes can take off or land at Buchanan FieldConcord Army 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.
• On the evening of December 23, 1985 a Beechcraft Baron N1494G, executing a missed instrument approach procedure from an approach to runway 19R, lost control and crashed into the roof of the Macy's Department Store at nearby Sunvalley Mall, killing the pilot and two passengers and seriously injuring 84 Christmas shoppers in the crowded mall, mainly by spraying them with burning fuel.
• In 1977 Buchanan Field reached its peak of activity with 357,000 total operations.