Nonstop flight route between Springfield, Illinois, United States and Tehran, Iran:
Departure Airport:

Arrival Airport:

Distance from SPI to THR:
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- About this route
- SPI Airport Information
- THR Airport Information
- Facts about SPI
- Facts about THR
- Map of Nearest Airports to SPI
- List of Nearest Airports to SPI
- Map of Furthest Airports from SPI
- List of Furthest Airports from SPI
- Map of Nearest Airports to THR
- List of Nearest Airports to THR
- Map of Furthest Airports from THR
- List of Furthest Airports from THR
About this route:
A direct, nonstop flight between Abraham Lincoln Capital Airport (SPI), Springfield, Illinois, United States and Mehrabad Airport (THR), Tehran, Iran would travel a Great Circle distance of 6,658 miles (or 10,715 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 Abraham Lincoln Capital 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 Abraham Lincoln Capital Airport and Mehrabad Airport. You'll see that it will travel the same route of the red line on this map!
Departure Airport Information:
IATA / ICAO Codes: | SPI / KSPI |
Airport Name: | Abraham Lincoln Capital Airport |
Location: | Springfield, Illinois, United States |
GPS Coordinates: | 39°50'39"N by 89°40'41"W |
Area Served: | Springfield, Illinois |
Operator/Owner: | Springfield Airport Authority |
Airport Type: | Public |
Elevation: | 598 feet (182 meters) |
# of Runways: | 3 |
View all routes: | Routes from SPI |
More Information: | SPI Maps & Info |
Arrival Airport Information:
IATA / ICAO Codes: | THR / OIII |
Airport Names: |
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Location: | Tehran, Iran |
GPS Coordinates: | 35°41'21"N by 51°18'48"E |
Area Served: | Tehran, Karaj |
Airport Type: | Joint (Public/Military) |
Elevation: | 3962 feet (1,208 meters) |
# of Runways: | 3 |
View all routes: | Routes from THR |
More Information: | THR Maps & Info |
Facts about Abraham Lincoln Capital Airport (SPI):
- The furthest airport from Abraham Lincoln Capital Airport (SPI) is Margaret River Airport (MGV), which is located 11,013 miles (17,724 kilometers) away in Margaret River, Western Australia, Australia.
- Because of Abraham Lincoln Capital Airport's relatively low elevation of 598 feet, planes can take off or land at Abraham Lincoln Capital 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.
- Abraham Lincoln Capital Airport (SPI) has 3 runways.
- Abraham Lincoln Capital Airport is a civil-military public airport in Sangamon County, Illinois.
- The closest airport to Abraham Lincoln Capital Airport (SPI) is Decatur Airport (DEC), which is located 43 miles (69 kilometers) E of SPI.
Facts about Mehrabad Airport (THR):
- In addition to being known as "Mehrabad Airport", another name for THR is "فرودگاه مهرآباد".
- Mehrabad Airport handled 13,163,368 passengers last year.
- 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 (THR) has 3 runways.
- Training, maintenance and engineering facilities of Iran Air and Iran Aseman Airlines are located at the airport.
- The airport was first time used as an airfield for aviation club planes in 1938, then after World War II along with becoming internationally recognized by joining Iran civil aviation organization to the ICAO in 1949, the airport also became an air force base.
- The closest airport to Mehrabad Airport (THR) is Tehran Imam Khomeini International Airport (IKA), which is located 21 miles (34 kilometers) SSW of THR.