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

Arrival Airport:

Distance from BMI to ALN:
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- About this route
- BMI Airport Information
- ALN Airport Information
- Facts about BMI
- Facts about ALN
- Map of Nearest Airports to BMI
- List of Nearest Airports to BMI
- Map of Furthest Airports from BMI
- List of Furthest Airports from BMI
- 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 Central Illinois Regional Airport at Bloomington-Normal (BMI), Bloomington, Illinois, United States and St. Louis Regional Airport (ALN), Alton, Illinois, United States would travel a Great Circle distance of 125 miles (or 201 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 Central Illinois Regional Airport at Bloomington-Normal 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: | BMI / KBMI |
Airport Name: | Central Illinois Regional Airport at Bloomington-Normal |
Location: | Bloomington, Illinois, United States |
GPS Coordinates: | 40°28'37"N by 88°54'56"W |
Area Served: | Bloomington / Normal, Illinois |
Operator/Owner: | Bloomington-Normal Airport Authority |
Airport Type: | Public |
Elevation: | 871 feet (265 meters) |
# of Runways: | 2 |
View all routes: | Routes from BMI |
More Information: | BMI 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 Central Illinois Regional Airport at Bloomington-Normal (BMI):
- The furthest airport from Central Illinois Regional Airport at Bloomington-Normal (BMI) is Margaret River Airport (MGV), which is located 11,045 miles (17,775 kilometers) away in Margaret River, Western Australia, Australia.
- Dedication of the airport was on May 30, 1928, witnessed by some 10,000 area residents.
- Hangar rental, fueling, and aircraft maintenance facilities are available.
- The closest airport to Central Illinois Regional Airport at Bloomington-Normal (BMI) is General Wayne A. Downing Peoria International Airport (PIA), which is located 43 miles (69 kilometers) WNW of BMI.
- The airport covers 1,968 acres at an elevation of 871 feet.
- Because of Central Illinois Regional Airport at Bloomington-Normal's relatively low elevation of 871 feet, planes can take off or land at Central Illinois Regional Airport at Bloomington-Normal 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.
- Central Illinois Regional Airport at Bloomington-Normal (BMI) has 2 runways.
- The Prairie Aviation Museum is on the west side of the airport.
Facts about St. Louis Regional Airport (ALN):
- 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.
- St. Louis Regional Airport (ALN) has 2 runways.