Nonstop flight route between Columbus, Ohio, United States and Dunhuang, Gansu, China:

About this route:

A direct, nonstop flight between Port Columbus International Airport (CMH), Columbus, Ohio, United States and Dunhuang Airport (DNH), Dunhuang, Gansu, China would travel a Great Circle distance of 6,896 miles (or 11,099 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 Port Columbus International Airport and Dunhuang 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 Port Columbus International Airport and Dunhuang 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 Port Columbus International Airport (CMH):

• The airport was the home base of short-lived Skybus Airlines, which began operations from Port Columbus on May 22, 2007.
• The furthest airport from Port Columbus International Airport (CMH) is Margaret River Airport (MGV), which is located 11,361 miles (18,284 kilometers) away in Margaret River, Western Australia, Australia.
• The closest airport to Port Columbus International Airport (CMH) is Ohio State University Airport (OSU), which is located only 11 miles (18 kilometers) WNW of CMH.
• The airport opened July 8, 1929 on a site selected by Charles Lindbergh, as the eastern air terminus of the Transcontinental Air Transport air-rail New York to Los Angeles transcontinental route.
• In November 2006, Skybus Airlines began leasing 100,000 square feet of office and hangar facilities at the Columbus International AirCenter adjacent to Port Columbus.
• Port Columbus International Airport (CMH) has 2 runways.
• On April 25, 2004, a new 195-foot control tower directed its first aircraft, ushering in the beginning of several major facility enhancements to be constructed through 2025.
• Because of Port Columbus International Airport's relatively low elevation of 815 feet, planes can take off or land at Port Columbus 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 Dunhuang Airport (DNH):

• The closest airport to Dunhuang Airport (DNH) is Jiayuguan Airport (JGN), which is located 188 miles (303 kilometers) E of DNH.
• The furthest airport from Dunhuang Airport (DNH) is Pupelde Airfield (ZUD), which is located 11,831 miles (19,041 kilometers) away in Ancud, Los Lagos Region, Chile.
• In addition to being known as "Dunhuang Airport", other names for DNH include "敦煌机场" and "Dūnhuáng Jīchǎng".