Nonstop flight route between Tehran, Iran and Chicago, Illinois, United States:

About this route:

A direct, nonstop flight between Tehran Imam Khomeini International Airport (IKA), Tehran, Iran and Chicago O'Hare International Airport (ORD), Chicago, Illinois, United States would travel a Great Circle distance of 6,496 miles (or 10,454 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 Tehran Imam Khomeini International Airport and Chicago O'Hare International 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 Tehran Imam Khomeini International Airport and Chicago O'Hare International 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 Tehran Imam Khomeini International Airport (IKA):

• Just prior to the opening on 8 May, two local airlines refused to switch to the new airport.
• On 26 October 2007, it was announced that as of 28 October 2007 at midnight, all international flights except those bound to and from Damascus, Jeddah and Medina were transferred to the Imam Khomeini International Airport and the IKA became Tehran's primary international airport.
• Tehran Imam Khomeini International Airport handled 4,986,477 passengers last year.
• The airport reopened on 13 May, as deputy head of Iran's Joint Chiefs of staff Brigadier-General Alireza Afshar stated "because foreign companies will no longer be in charge of the airport's operation, security obstacles are removed."
• In addition to being known as "Tehran Imam Khomeini International Airport", another name for IKA is "فرودگاه امام خمینی".
• The closest airport to Tehran Imam Khomeini International Airport (IKA) is Mehrabad Airport (THR), which is located 21 miles (34 kilometers) NNE of IKA.
• IKA is equipped with the ILS since August 2009.
• Tehran Imam Khomeini International Airport (IKA) has 2 runways.
• The furthest airport from Tehran Imam Khomeini International Airport (IKA) is Totegegie Airport (GMR), which is located 11,511 miles (18,525 kilometers) away in Mangareva, Gambier Islands, French Polynesia.
• It was designed to replace Mehrabad International Airport, which is in the west of the city, now inside the city boundaries.

Facts about Chicago O'Hare International Airport (ORD):

• The furthest airport from Chicago O'Hare International Airport (ORD) is Margaret River Airport (MGV), which is located 11,071 miles (17,817 kilometers) away in Margaret River, Western Australia, Australia.
• Because of Chicago O'Hare International Airport's relatively low elevation of 668 feet, planes can take off or land at Chicago O'Hare 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.
• Chicago O'Hare International Airport (ORD) has 8 runways.
• The closest airport to Chicago O'Hare International Airport (ORD) is Chicago Executive Airport (PWK), which is located only 9 miles (15 kilometers) N of ORD.
• Following the closure of the O'Hare Air Reserve Station, the former USAF facilities were redeveloped for air cargo and general aviation.
• American Airlines, United Airlines and Trans World Airlines had many routes to the West Coast, Northeast and Midwest.
• The original Douglas Aircraft C-54 Skymaster transport manufacturing plant on the northeast side of the airport became a United States Air Force Air National Guard and Air Force Reserve facility after World War II.
• During this era international flights used Terminal 1.
• In 1945, the facility was chosen by the city of Chicago as the site for a facility to meet future aviation demands.