Nonstop flight route between Spearfish, South Dakota, United States and Incheon (near Seoul), South Korea:

About this route:

A direct, nonstop flight between Black Hills Airport (SPF), Spearfish, South Dakota, United States and Incheon International Airport (ICN), Incheon (near Seoul), South Korea would travel a Great Circle distance of 5,965 miles (or 9,600 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 Black Hills Airport and Incheon International Airport, 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 Black Hills Airport and Incheon International Airport. 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 Black Hills Airport (SPF):

• The furthest airport from Black Hills Airport (SPF) is Sir Gaëtan Duval Airport (RRG), which is located 10,576 miles (17,020 kilometers) away in Rodrigues Island, Mauritius.
• Black Hills Airport (SPF) has 4 runways.
• The closest airport to Black Hills Airport (SPF) is Ellsworth Air Force Base (RCA), which is located 42 miles (67 kilometers) ESE of SPF.
• In addition to being known as "Black Hills Airport", another name for SPF is "Clyde Ice Field".

Facts about Incheon International Airport (ICN):

• There are three parallel paved asphalt runways in operation, 15R/33L, 15L/33R and 16/34.
• In addition to being known as "Incheon International Airport", other names for ICN include "인천국제공항 仁川國際空港" and "Incheon Gukje Gonghang Inch'ŏn Kukche Konghang".
• The furthest airport from Incheon International Airport (ICN) is Villa Gesell Airport (VLG), which is nearly antipodal to Incheon International Airport (meaning Incheon International Airport is almost on the exact opposite side of the Earth from Villa Gesell Airport), and is located 12,246 miles (19,707 kilometers) away in Villa Gesell, Buenos Aires, Argentina.
• Incheon International Airport (ICN) has 3 runways.
• The airport opened for business in early 2001 to replace the older Gimpo International Airport, which now serves mostly domestic destinations plus shuttle flights to alternate airports in China, Japan, and Taiwan.
• In Phase 1, the airport had a capacity of 30 million passengers per year, and a cargo capacity of 1.7 million metric tonnes yearly.
• The closest airport to Incheon International Airport (ICN) is Gimpo International Airport (GMP), which is located 20 miles (33 kilometers) ENE of ICN.
• It is connected to the mainland by Incheon International Airport Expressway, a part of which is Yeongjong Bridge.
• Seoul Incheon International Airport's terminal has 76 boarding gates altogether, with 44 in the main terminal and 30 in Concourse A.
• On 15 November 2006, the Airbus A380 landed at the airport as part of the first leg of its certification trip.
• Incheon International Airport handled 41,482,828 passengers last year.
• Because of Incheon International Airport's relatively low elevation of 23 feet, planes can take off or land at Incheon International 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.
• Incheon Airport is a major connecting point between China and North America.