Nonstop flight route between Ko Samui, Surat Thani, Thailand and Arlington County, Virginia (near Washington, D.C.), United States:

About this route:

A direct, nonstop flight between Samui International Airport (USM), Ko Samui, Surat Thani, Thailand and Ronald Reagan Washington National Airport (DCA), Arlington County, Virginia (near Washington, D.C.), United States would travel a Great Circle distance of 9,087 miles (or 14,625 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 Samui International 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 Samui International 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 Samui International Airport (USM):

• Because of Samui International Airport's relatively low elevation of 64 feet, planes can take off or land at Samui 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.
• In addition to being known as "Samui International Airport", another name for USM is "ท่าอากาศยานสมุย".
• The furthest airport from Samui International Airport (USM) is Teniente FAP Jaime Montreuil Morales Airport (CHM), which is nearly antipodal to Samui International Airport (meaning Samui International Airport is almost on the exact opposite side of the Earth from Teniente FAP Jaime Montreuil Morales Airport), and is located 12,337 miles (19,854 kilometers) away in Chimbote, Ancash Region, Peru.
• The closest airport to Samui International Airport (USM) is Surat Thani International Airport (URT), which is located 69 miles (112 kilometers) WSW of USM.
• Samui International Airport (USM) currently has only 1 runway.

Facts about Ronald Reagan Washington National Airport (DCA):

• In 1999, Senator John McCain of Arizona introduced legislation to remove the 1,250-statute-mile restriction, infuriating some local residents concerned about noise and traffic from increased service by larger, long-haul aircraft.
• 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.
• Ronald Reagan Washington National Airport (DCA) has 3 runways.
• 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.
• Prior to the September 11 attacks in 2001, the notable security measure was the southbound approach into the airport.
• 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.
• 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.