Nonstop flight route between Alton, Illinois, United States and Tucson, Arizona, United States:
Departure Airport:

Arrival Airport:

Distance from ALN to DMA:
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- About this route
- ALN Airport Information
- DMA Airport Information
- Facts about ALN
- Facts about DMA
- 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 DMA
- List of Nearest Airports to DMA
- Map of Furthest Airports from DMA
- List of Furthest Airports from DMA
About this route:
A direct, nonstop flight between St. Louis Regional Airport (ALN), Alton, Illinois, United States and Davis–Monthan Air Force Base (DMA), Tucson, Arizona, United States would travel a Great Circle distance of 1,257 miles (or 2,023 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 relatively short distance between St. Louis Regional Airport and Davis–Monthan Air Force Base, the route shown on this map most likely still appears to be a straight line.
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: | DMA / KDMA |
Airport Name: | Davis–Monthan Air Force Base |
Location: | Tucson, Arizona, United States |
GPS Coordinates: | 32°9'59"N by 110°52'59"W |
View all routes: | Routes from DMA |
More Information: | DMA Maps & Info |
Facts about St. Louis Regional Airport (ALN):
- In the spring of 2004 the airport was at the center of a scandal.
- 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.
- 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.
- St. Louis Regional Airport (ALN) has 2 runways.
- 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.
Facts about Davis–Monthan Air Force Base (DMA):
- One of the wing's tenant units, the 55th Electronic Combat Group, is tasked to provide command, control and communications countermeasures in support of tactical forces with its EC-130H aircraft.
- Military presence at the field began when Sergeant Simpson relocated his fuel and service operation to the site on 6 October 1927.
- In 1962, the Strategic Air Command's 390th Strategic Missile Wing and its 18 Titan II ICBM sites around Tucson were activated.
- The closest airport to Davis–Monthan Air Force Base (DMA) is Tucson International Airport (TUS), which is located only 5 miles (8 kilometers) SW of DMA.
- In 1984, as a result of the first series of Strategic Arms Reduction Treaties START I between the United States and the Soviet Union, SAC began to decommission its Titan II missile system.
- The furthest airport from Davis–Monthan Air Force Base (DMA) is Sir Gaëtan Duval Airport (RRG), which is located 11,508 miles (18,521 kilometers) away in Rodrigues Island, Mauritius.
- Davis-Monthan Airport became Tucson Army Air Field in 1940, as the United States prepared for World War II.