Nonstop flight route between Hondo, Texas, United States and Alton, Illinois, United States:
Departure Airport:

Arrival Airport:

Distance from HDO to ALN:
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- About this route
- HDO Airport Information
- ALN Airport Information
- Facts about HDO
- Facts about ALN
- Map of Nearest Airports to HDO
- List of Nearest Airports to HDO
- Map of Furthest Airports from HDO
- List of Furthest Airports from HDO
- Map of Nearest Airports to ALN
- List of Nearest Airports to ALN
- Map of Furthest Airports from ALN
- List of Furthest Airports from ALN
About this route:
A direct, nonstop flight between South Texas Regional Airport at Hondo (HDO), Hondo, Texas, United States and St. Louis Regional Airport (ALN), Alton, Illinois, United States would travel a Great Circle distance of 840 miles (or 1,351 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 South Texas Regional Airport at Hondo and St. Louis Regional Airport, the route shown on this map most likely still appears to be a straight line.
Departure Airport Information:
IATA / ICAO Codes: | HDO / KHDO |
Airport Name: | South Texas Regional Airport at Hondo |
Location: | Hondo, Texas, United States |
GPS Coordinates: | 29°21'33"N by 99°10'38"W |
Area Served: | Hondo, Texas |
Operator/Owner: | City of Hondo |
Airport Type: | Public |
Elevation: | 930 feet (283 meters) |
# of Runways: | 4 |
View all routes: | Routes from HDO |
More Information: | HDO Maps & Info |
Arrival 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 |
Facts about South Texas Regional Airport at Hondo (HDO):
- Because of South Texas Regional Airport at Hondo's relatively low elevation of 930 feet, planes can take off or land at South Texas Regional Airport at Hondo 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 closest airport to South Texas Regional Airport at Hondo (HDO) is Garner Field (UVA), which is located 36 miles (57 kilometers) WSW of HDO.
- The airport has its origins in 1942 with the establishment by the Army Air Corps of Hondo Army Airfield, and was used as a Navigator training base.
- During the 1960s the city of Hondo leased facilities at the base to the Hondo Livestock Auction and to Gary Aerospace, Universal Rundle, and Doss Aviation.
- The furthest airport from South Texas Regional Airport at Hondo (HDO) is Sir Gaëtan Duval Airport (RRG), which is located 11,157 miles (17,955 kilometers) away in Rodrigues Island, Mauritius.
- South Texas Regional Airport at Hondo (HDO) has 4 runways.
- After the mid-1970s the base housed a number of businesses, including a fiberglass-products plant, a greenhouse, a national guard armory, and the Medina Electric Cooperative.
Facts about St. Louis Regional Airport (ALN):
- The 2,250 acres airfield sits at 544 ft MSL.
- Civic Memorial Airport opened in 1946 and received its current name in 1984.
- Today a fair amount of air traffic and the Direct TV blimp comes for Cardinals playoffs, as Lambert's airport cannot take the blimp.
- St. Louis Regional Airport (ALN) has 2 runways.
- 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.
- 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 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.