Nonstop flight route between Tehran, Iran and Kelso, Washington, United States:

About this route:

A direct, nonstop flight between Tehran Imam Khomeini International Airport (IKA), Tehran, Iran and Southwest Washington Regional Airport (KLS), Kelso, Washington, United States would travel a Great Circle distance of 6,791 miles (or 10,929 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 Southwest Washington Regional 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 Southwest Washington Regional 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):

• 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.
• Tehran Imam Khomeini International Airport handled 4,986,477 passengers last year.
• However, on 8 May, a few hours after the opening of airport, the Revolutionary Guards of the Iranian Armed Forces closed it, citing security fears over the use of foreigners in the running of the airport.
• Further complicating matters, on 29 April 2005, the United Kingdom and Canada warned its citizens against using the airport due to alleged safety concerns concerning the runway, which has been claimed to have been built over ancient qanats.
• The closest airport to Tehran Imam Khomeini International Airport (IKA) is Mehrabad Airport (THR), which is located 21 miles (34 kilometers) NNE of IKA.
• The construction began before the Iranian Revolution of 1979.
• Tehran Imam Khomeini International Airport (IKA) has 2 runways.
• In addition to being known as "Tehran Imam Khomeini International Airport", another name for IKA is "فرودگاه امام خمینی".

Facts about Southwest Washington Regional Airport (KLS):

• The furthest airport from Southwest Washington Regional Airport (KLS) is Tôlanaro Airport (FTU), which is located 10,876 miles (17,503 kilometers) away in Tôlanaro, Madagascar.
• Because of Southwest Washington Regional Airport's relatively low elevation of 20 feet, planes can take off or land at Southwest Washington Regional 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.
• Southwest Washington Regional Airport is a city-owned public-use airport located two nautical miles southeast of the central business district of Kelso, in Cowlitz County, Washington, United States.
• The closest airport to Southwest Washington Regional Airport (KLS) is South Lewis County Airport (TDO), which is located 25 miles (41 kilometers) N of KLS.
• Southwest Washington Regional Airport (KLS) currently has only 1 runway.