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

Arrival Airport:

Distance from OKM to ALN:
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- About this route
- OKM Airport Information
- ALN Airport Information
- Facts about OKM
- Facts about ALN
- Map of Nearest Airports to OKM
- List of Nearest Airports to OKM
- Map of Furthest Airports from OKM
- List of Furthest Airports from OKM
- 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 Okmulgee Regional Airport (OKM), Okmulgee, Oklahoma, United States and St. Louis Regional Airport (ALN), Alton, Illinois, United States would travel a Great Circle distance of 393 miles (or 633 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 Okmulgee 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: | OKM / KOKM |
Airport Name: | Okmulgee Regional Airport |
Location: | Okmulgee, Oklahoma, United States |
GPS Coordinates: | 35°40'5"N by 95°56'54"W |
Area Served: | Okmulgee, Oklahoma |
Operator/Owner: | City of Okmulgee |
Airport Type: | Public |
Elevation: | 720 feet (219 meters) |
# of Runways: | 1 |
View all routes: | Routes from OKM |
More Information: | OKM 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 Okmulgee Regional Airport (OKM):
- Because of Okmulgee Regional Airport's relatively low elevation of 720 feet, planes can take off or land at Okmulgee 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.
- Opened as Okmulgee Field in 1942 as a United States Army Air Forces airfield.
- Inactivated on June 30, 1944 with the drawdown of AAFTC's pilot training program.
- The airport covers 1,100 acres at an elevation of 720 feet.
- Central DC-3s landed for a year or two around 1951-52.
- The furthest airport from Okmulgee Regional Airport (OKM) is Sir Gaëtan Duval Airport (RRG), which is located 10,767 miles (17,328 kilometers) away in Rodrigues Island, Mauritius.
- Okmulgee Regional Airport (OKM) currently has only 1 runway.
- The closest airport to Okmulgee Regional Airport (OKM) is Richard Lloyd Jones Jr. Airport (RVS), which is located 26 miles (41 kilometers) N of OKM.
Facts about St. Louis Regional Airport (ALN):
- 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.
- 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 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.
- Civic Memorial Airport opened in 1946 and received its current name in 1984.
- St. Louis Regional Airport (ALN) has 2 runways.
- 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.
- West Star Aviation is the largest fixed base operations company at the airport.
- Today a fair amount of air traffic and the Direct TV blimp comes for Cardinals playoffs, as Lambert's airport cannot take the blimp.