Nonstop flight route between Fort Hood / Killeen, Texas, United States and Tehran, Iran:
Departure Airport:

Arrival Airport:

Distance from GRK to THR:
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- About this route
- GRK Airport Information
- THR Airport Information
- Facts about GRK
- Facts about THR
- Map of Nearest Airports to GRK
- List of Nearest Airports to GRK
- Map of Furthest Airports from GRK
- List of Furthest Airports from GRK
- 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 Killeen–Fort Hood Regional Airport (GRK), Fort Hood / Killeen, Texas, United States and Mehrabad Airport (THR), Tehran, Iran would travel a Great Circle distance of 7,409 miles (or 11,923 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 Killeen–Fort Hood Regional 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 Killeen–Fort Hood Regional 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: | GRK / KGRK |
Airport Name: | Killeen–Fort Hood Regional Airport |
Location: | Fort Hood / Killeen, Texas, United States |
GPS Coordinates: | 31°4'1"N by 97°49'44"W |
Airport Type: | Public |
Elevation: | 1015 feet (309 meters) |
# of Runways: | 1 |
View all routes: | Routes from GRK |
More Information: | GRK 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 Killeen–Fort Hood Regional Airport (GRK):
- Killeen–Fort Hood Regional Airport is a small military/commercial joint-use airport that operates alongside Robert Gray Army Airfield.
- Killeen–Fort Hood Regional Airport (GRK) currently has only 1 runway.
- The closest airport to Killeen–Fort Hood Regional Airport (GRK) is Hood Army Airfield (HLR), which is located only 8 miles (14 kilometers) NE of GRK.
- The furthest airport from Killeen–Fort Hood Regional Airport (GRK) is Sir Gaëtan Duval Airport (RRG), which is located 11,030 miles (17,751 kilometers) away in Rodrigues Island, Mauritius.
Facts about Mehrabad Airport (THR):
- The airport has the head offices of Iran Air and the Iran Civil Aviation Organization.
- Mehrabad Airport handled 13,163,368 passengers last year.
- In addition to being known as "Mehrabad Airport", another name for THR is "فرودگاه مهرآباد".
- 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.
- The closest airport to Mehrabad Airport (THR) is Tehran Imam Khomeini International Airport (IKA), which is located 21 miles (34 kilometers) SSW of THR.
- Mehrabad Airport (THR) has 3 runways.
- Training, maintenance and engineering facilities of Iran Air and Iran Aseman Airlines are located at the airport.
- IKA Airport was scheduled to open in 2004 with international flights gradually changing from Mehrabad starting with flights to countries bordering the Persian Gulf.