Nonstop flight route between Alamosa, Colorado, United States and Tehran, Iran:
Departure Airport:

Arrival Airport:

Distance from ALS to THR:
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- About this route
- ALS Airport Information
- THR Airport Information
- Facts about ALS
- Facts about THR
- Map of Nearest Airports to ALS
- List of Nearest Airports to ALS
- Map of Furthest Airports from ALS
- List of Furthest Airports from ALS
- 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 San Luis Valley Regional Airport (ALS), Alamosa, Colorado, United States and Mehrabad Airport (THR), Tehran, Iran would travel a Great Circle distance of 7,177 miles (or 11,550 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 San Luis Valley 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 San Luis Valley 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: | ALS / KALS |
Airport Names: |
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Location: | Alamosa, Colorado, United States |
GPS Coordinates: | 37°26'6"N by 105°51'59"W |
Area Served: | Alamosa, Colorado |
Operator/Owner: | City and County of Alamosa |
Airport Type: | Public |
Elevation: | 7539 feet (2,298 meters) |
# of Runways: | 2 |
View all routes: | Routes from ALS |
More Information: | ALS 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 San Luis Valley Regional Airport (ALS):
- In addition to being known as "San Luis Valley Regional Airport", another name for ALS is "Bergman Field".
- The closest airport to San Luis Valley Regional Airport (ALS) is Stevens Field (FAA: PSO) (PGO), which is located 66 miles (106 kilometers) W of ALS.
- The furthest airport from San Luis Valley Regional Airport (ALS) is Sir Gaëtan Duval Airport (RRG), which is located 11,054 miles (17,790 kilometers) away in Rodrigues Island, Mauritius.
- San Luis Valley Regional Airport (ALS) has 2 runways.
- Because of San Luis Valley Regional Airport's high elevation of 7,539 feet, planes must typically fly at a faster airspeed in order to takeoff or land at ALS. Combined with a high temperature, this could make ALS a "Hot & High" airport, where the air density is lower than it would otherwise be at sea level.
Facts about Mehrabad Airport (THR):
- In addition to being known as "Mehrabad Airport", another name for THR is "فرودگاه مهرآباد".
- Mehrabad Airport (THR) has 3 runways.
- An aircraft engineering and maintenance company Fajr Ashian, has a maintenance hangar adjacent to main airport premises.
- 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 handled 13,163,368 passengers last year.
- 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.