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):

• 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.
• Ronald Reagan Washington National Airport is a public airport 3 miles south of downtown Washington, D.C., in Arlington County, Virginia.
• Ronald Reagan Washington National Airport (DCA) has 3 runways.
• 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.
• Prior to the September 11 attacks in 2001, the notable security measure was the southbound approach into the airport.
• With the addition of more flights and limited space in the aging main terminal, the airport began an extensive renovation and expansion in the 1990s.
• 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.
• The Washington National Airport Terminal and South Hangar Line were listed on the National Register of Historic Places in 1997.
• 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.

Facts about Mehrabad Airport (THR):

• Mehrabad Airport (THR) has 3 runways.
• The closest airport to Mehrabad Airport (THR) is Tehran Imam Khomeini International Airport (IKA), which is located 21 miles (34 kilometers) SSW of THR.
• 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.
• In addition to being known as "Mehrabad Airport", another name for THR is "فرودگاه مهرآباد".
• IKA Airport was scheduled to open in 2004 with international flights gradually changing from Mehrabad starting with flights to countries bordering the Persian Gulf.