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

About this route:

A direct, nonstop flight between Ronald Reagan Washington National Airport (DCA), Arlington County, Virginia (near Washington, D.C.), United States and Mehrabad Airport (THR), Tehran, Iran would travel a Great Circle distance of 6,323 miles (or 10,176 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 Ronald Reagan Washington National Airport and Mehrabad 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 Ronald Reagan Washington National Airport and Mehrabad 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 Ronald Reagan Washington National Airport (DCA):

• The runway layout has changed little, except for the 1956 closure of a fourth, east–west runway now used for taxiing and aircraft parking.
• On March 23, 2011, the air traffic control supervisor on duty reportedly fell asleep during the night shift.
• 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.
• Terminals B and C opened in 1997, replacing a collection of airline-specific terminals built during the 1960s.
• Reagan National only has United States immigration and customs facilities for corporate jet traffic.
• 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.
• Ronald Reagan Washington National Airport (DCA) has 3 runways.
• The airport opened June 16, 1941.
• 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.
• After the attacks, the airport was closed for several weeks, and security was tightened when it reopened.

Facts about Mehrabad Airport (THR):

• In addition to being known as "Mehrabad Airport", another name for THR is "فرودگاه مهرآباد".
• The closest airport to Mehrabad Airport (THR) is Tehran Imam Khomeini International Airport (IKA), which is located 21 miles (34 kilometers) SSW of THR.
• Mehrabad International Airport consists of six terminals, with Terminals 1,3 and 5 only used during Haj and Umrah seasons.
• Mehrabad Airport (THR) has 3 runways.
• The furthest airport from Mehrabad Airport (THR) is Totegegie Airport (GMR), which is located 11,490 miles (18,491 kilometers) away in Mangareva, Gambier Islands, French Polynesia.
• Mehrabad Airport handled 13,163,368 passengers last year.
• IKA Airport was scheduled to open in 2004 with international flights gradually changing from Mehrabad starting with flights to countries bordering the Persian Gulf.