Nonstop flight route between Cheong ju, South Korea and Boulder, Colorado, United States:

About this route:

A direct, nonstop flight between Cheongju International Airport (CJJ), Cheong ju, South Korea and Boulder Municipal Airport (WBU), Boulder, Colorado, United States would travel a Great Circle distance of 6,167 miles (or 9,925 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 Cheongju International Airport and Boulder Municipal 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 Cheongju International Airport and Boulder Municipal 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 Cheongju International Airport (CJJ):

• In addition to being known as "Cheongju International Airport", other names for CJJ include "청주국제공항 淸州國際空港", "Cheongju Gukje Gonghang" and "Ch'ŏngju Kukche Konghang".
• The closest airport to Cheongju International Airport (CJJ) is Yecheon Air Base (YEC), which is located 48 miles (77 kilometers) E of CJJ.
• Cheongju International Airport handled 1,032,484 passengers last year.
• Cheongju International Airport (CJJ) has 2 runways.
• The furthest airport from Cheongju International Airport (CJJ) is Capitán de Corbeta Carlos A. Curbelo International Airport (PDP), which is nearly antipodal to Cheongju International Airport (meaning Cheongju International Airport is almost on the exact opposite side of the Earth from Capitán de Corbeta Carlos A. Curbelo International Airport), and is located 12,243 miles (19,703 kilometers) away in Maldonado/Punta del Este, Maldonado, Uruguay.
• Because of Cheongju International Airport's relatively low elevation of 191 feet, planes can take off or land at Cheongju 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.

Facts about Boulder Municipal Airport (WBU):

• In addition to being known as "Boulder Municipal Airport", another name for WBU is "BDU".
• Boulder Municipal Airport (WBU) has 2 runways.
• The closest airport to Boulder Municipal Airport (WBU) is Rocky Mountain Metropolitan Airport (BJC), which is located only 11 miles (17 kilometers) SSE of WBU.
• There is no terminal, just hangars for various aviation companies and maintenance buildings.
• Because of Boulder Municipal Airport's high elevation of 5,288 feet, planes must typically fly at a faster airspeed in order to takeoff or land at WBU. Combined with a high temperature, this could make WBU a "Hot & High" airport, where the air density is lower than it would otherwise be at sea level.
• The furthest airport from Boulder Municipal Airport (WBU) is Sir Gaëtan Duval Airport (RRG), which is located 10,881 miles (17,511 kilometers) away in Rodrigues Island, Mauritius.