Nonstop flight route between Hamilton, Ohio, United States and Alton, Illinois, United States:
Departure Airport:

Arrival Airport:

Distance from HAO to ALN:
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- About this route
- HAO Airport Information
- ALN Airport Information
- Facts about HAO
- Facts about ALN
- Map of Nearest Airports to HAO
- List of Nearest Airports to HAO
- Map of Furthest Airports from HAO
- List of Furthest Airports from HAO
- 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 Butler County Regional Airport (HAO), Hamilton, Ohio, United States and St. Louis Regional Airport (ALN), Alton, Illinois, United States would travel a Great Circle distance of 298 miles (or 479 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 Butler County Regional Airport 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: | HAO / KHAO |
Airport Names: |
|
Location: | Hamilton, Ohio, United States |
GPS Coordinates: | 39°21'49"N by 84°31'18"W |
Area Served: | Hamilton, Ohio |
Operator/Owner: | Butler County Board of Commissioners |
Airport Type: | Public |
Elevation: | 633 feet (193 meters) |
# of Runways: | 1 |
View all routes: | Routes from HAO |
More Information: | HAO 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 Butler County Regional Airport (HAO):
- Butler County Regional Airport (HAO) currently has only 1 runway.
- Because of Butler County Regional Airport's relatively low elevation of 633 feet, planes can take off or land at Butler County 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.
- In addition to being known as "Butler County Regional Airport", another name for HAO is "Hogan Field".
- The closest airport to Butler County Regional Airport (HAO) is Middletown Regional Airport (MWO), which is located only 13 miles (22 kilometers) NNE of HAO.
- The furthest airport from Butler County Regional Airport (HAO) is Margaret River Airport (MGV), which is located 11,289 miles (18,168 kilometers) away in Margaret River, Western Australia, Australia.
Facts about St. Louis Regional Airport (ALN):
- 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.
- West Star Aviation is the largest fixed base operations company at the airport.
- 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.
- 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.
- St. Louis Regional Airport (ALN) has 2 runways.