Nonstop flight route between St. Louis, Missouri, United States and Tehran, Iran:

About this route:

A direct, nonstop flight between Lambert–St. Louis International Airport (STL), St. Louis, Missouri, United States and Mehrabad Airport (THR), Tehran, Iran would travel a Great Circle distance of 6,742 miles (or 10,850 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 Lambert–St. Louis International 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 Lambert–St. Louis International 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 Lambert–St. Louis International Airport (STL):

• Because of Lambert–St. Louis International Airport's relatively low elevation of 605 feet, planes can take off or land at Lambert–St. Louis 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.
• The airport grew from a balloon launching base, Kinloch Field, part of the 1890s Kinloch Park suburban development.
• The furthest airport from Lambert–St. Louis International Airport (STL) is Margaret River Airport (MGV), which is located 10,986 miles (17,681 kilometers) away in Margaret River, Western Australia, Australia.
• On October 22, 2012, a Virgin Atlantic Airbus A340 landed at Lambert carrying VA Executives, including Richard Branson to discuss and explore the likelihood of a St Louis Route.
• Lambert–St. Louis International Airport (STL) has 4 runways.
• The closest airport to Lambert–St. Louis International Airport (STL) is St. Louis Downtown Airport (CPS), which is located only 16 miles (27 kilometers) SE of STL.
• American Airline's merger closed in April 2001, and the last TWA flight was flown on December 1, 2001.
• Ozark Airlines established its only hub at Lambert in the late 1950s.
• The September 11, 2001 terrorist attacks were a huge demand shock to air service nationwide, with total airline industry domestic revenue passenger miles dropping 20% in October 2001 and 17% in November 2001.
• In 1925, the airport became home to Naval Air Station St.

Facts about Mehrabad Airport (THR):

• 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.
• Mehrabad International Airport or Mehrabad is an airport that serves Tehran, Iran.
• Mehrabad Airport (THR) has 3 runways.
• The airport has the head offices of Iran Air and the Iran Civil Aviation Organization.
• 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.
• In addition to being known as "Mehrabad Airport", another name for THR is "فرودگاه مهرآباد".