Nonstop flight route between Ulanhot, China and Arlington County, Virginia (near Washington, D.C.), United States:

About this route:

A direct, nonstop flight between Ulanhot Airport (HLH), Ulanhot, China and Ronald Reagan Washington National Airport (DCA), Arlington County, Virginia (near Washington, D.C.), United States would travel a Great Circle distance of 6,443 miles (or 10,370 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 Ulanhot Airport and Ronald Reagan Washington National 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 Ulanhot Airport and Ronald Reagan Washington National 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 Ulanhot Airport (HLH):

• Because of Ulanhot Airport's relatively low elevation of 0 feet, planes can take off or land at Ulanhot 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.
• The furthest airport from Ulanhot Airport (HLH) is Port Stanley Airport (PSY), which is nearly antipodal to Ulanhot Airport (meaning Ulanhot Airport is almost on the exact opposite side of the Earth from Port Stanley Airport), and is located 12,057 miles (19,404 kilometers) away in Stanley, Falkland Islands, United Kingdom.
• The closest airport to Ulanhot Airport (HLH) is Arxan Yi'ershi Airport (YIE), which is located 126 miles (202 kilometers) NW of HLH.

Facts about Ronald Reagan Washington National Airport (DCA):

• Other than 40 slot exemptions, flights into and out of DCA are not allowed to exceed 1,250 statute miles in any direction nonstop, in an effort to send air traffic to the larger but more distant Washington Dulles International Airport.
• The furthest airport from Ronald Reagan Washington National Airport (DCA) is Margaret River Airport (MGV), which is located 11,682 miles (18,800 kilometers) away in Margaret River, Western Australia, Australia.
• Until 1999, Runways 1/19 and 4/22 were designated 18/36 and 3/21.
• The closest airport to Ronald Reagan Washington National Airport (DCA) is Bolling Air Force Base (BOF), which is located only 1 miles (2 kilometers) ESE of DCA.
• In May 2012, the U.S.
• Given Reagan National Airport's proximity to the city and high-security facilities, Reagan National has extra security precautions required by the Washington Air Defense Identification Zone that have been in place since the airport began operations.
• The runway layout has changed little, except for the 1956 closure of a fourth, east–west runway now used for taxiing and aircraft parking.
• Ronald Reagan Washington National Airport (DCA) has 3 runways.
• Because of Ronald Reagan Washington National Airport's relatively low elevation of 15 feet, planes can take off or land at Ronald Reagan Washington National 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.