Nonstop flight route between Alton, Illinois, United States and Iringa, Tanzania:
Departure Airport:

Arrival Airport:

Distance from ALN to IRI:
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- About this route
- ALN Airport Information
- IRI Airport Information
- Facts about ALN
- Facts about IRI
- Map of Nearest Airports to ALN
- List of Nearest Airports to ALN
- Map of Furthest Airports from ALN
- List of Furthest Airports from ALN
- Map of Nearest Airports to IRI
- List of Nearest Airports to IRI
- Map of Furthest Airports from IRI
- List of Furthest Airports from IRI
About this route:
A direct, nonstop flight between St. Louis Regional Airport (ALN), Alton, Illinois, United States and Iringa / Nduli Airport (IRI), Iringa, Tanzania would travel a Great Circle distance of 8,453 miles (or 13,604 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 St. Louis Regional Airport and Iringa / Nduli 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 St. Louis Regional Airport and Iringa / Nduli Airport. You'll see that it will travel the same route of the red line on this map!
Departure Airport Information:
IATA / ICAO Codes: | ALN / KALN |
Airport Name: | St. Louis Regional Airport |
Location: | Alton, Illinois, United States |
GPS Coordinates: | 38°53'25"N by 90°2'45"W |
Area Served: | Alton, Illinois |
Operator/Owner: | St. Louis Regional |
Airport Type: | Public |
Elevation: | 544 feet (166 meters) |
# of Runways: | 2 |
View all routes: | Routes from ALN |
More Information: | ALN Maps & Info |
Arrival Airport Information:
IATA / ICAO Codes: | IRI / HTIR |
Airport Names: |
|
Location: | Iringa, Tanzania |
GPS Coordinates: | 7°40'9"S by 35°45'6"E |
Area Served: | Iringa |
Operator/Owner: | Government of Tanzania |
Airport Type: | Public |
Elevation: | 4678 feet (1,426 meters) |
# of Runways: | 1 |
View all routes: | Routes from IRI |
More Information: | IRI Maps & Info |
Facts about St. Louis Regional Airport (ALN):
- The 2,250 acres airfield sits at 544 ft MSL.
- St. Louis Regional Airport (ALN) has 2 runways.
- Its operations are paid for by an airport taxation district created in 1946, which collects taxes from property owners in the Madison County townships of Alton, Wood River, Foster and Fort Russell.
- The closest airport to St. Louis Regional Airport (ALN) is Lambert–St. Louis International Airport (STL), which is located only 20 miles (32 kilometers) WSW of ALN.
- Because of St. Louis Regional Airport's relatively low elevation of 544 feet, planes can take off or land at St. Louis 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.
- The furthest airport from St. Louis Regional Airport (ALN) is Margaret River Airport (MGV), which is located 11,002 miles (17,706 kilometers) away in Margaret River, Western Australia, Australia.
- In the spring of 2004 the airport was at the center of a scandal.
- Civic Memorial Airport opened in 1946 and received its current name in 1984.
Facts about Iringa / Nduli Airport (IRI):
- The closest airport to Iringa / Nduli Airport (IRI) is Msalato International Airport– Proposed airport – (DOD), which is located 109 miles (175 kilometers) N of IRI.
- Iringa / Nduli Airport (IRI) currently has only 1 runway.
- In addition to being known as "Iringa / Nduli Airport", another name for IRI is "Uwanja wa Ndege wa Iringa / Nduli (Swahili)".
- Because of Iringa / Nduli Airport's high elevation of 4,678 feet, planes must typically fly at a faster airspeed in order to takeoff or land at IRI. Combined with a high temperature, this could make IRI a "Hot & High" airport, where the air density is lower than it would otherwise be at sea level.
- The furthest airport from Iringa / Nduli Airport (IRI) is Cassidy International Airport (CXI), which is located 11,453 miles (18,432 kilometers) away in Christmas Island, Kiribati.