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

Arrival Airport:

Distance from SUD to ALN:
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- About this route
- SUD Airport Information
- ALN Airport Information
- Facts about SUD
- Facts about ALN
- Map of Nearest Airports to SUD
- List of Nearest Airports to SUD
- Map of Furthest Airports from SUD
- List of Furthest Airports from SUD
- 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 Stroud Municipal Airport (SUD), Stroud, Oklahoma, United States and St. Louis Regional Airport (ALN), Alton, Illinois, United States would travel a Great Circle distance of 421 miles (or 678 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 Stroud Municipal 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: | SUD / KSUD |
Airport Name: | Stroud Municipal Airport |
Location: | Stroud, Oklahoma, United States |
GPS Coordinates: | 35°47'21"N by 96°39'20"W |
Area Served: | Stroud, Oklahoma |
Operator/Owner: | City of Stroud |
Airport Type: | Public |
Elevation: | 900 feet (274 meters) |
# of Runways: | 1 |
View all routes: | Routes from SUD |
More Information: | SUD 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 Stroud Municipal Airport (SUD):
- Because of Stroud Municipal Airport's relatively low elevation of 900 feet, planes can take off or land at Stroud Municipal 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 Stroud Municipal Airport (SUD) is Sir Gaëtan Duval Airport (RRG), which is located 10,794 miles (17,371 kilometers) away in Rodrigues Island, Mauritius.
- Stroud Municipal Airport (SUD) currently has only 1 runway.
- The closest airport to Stroud Municipal Airport (SUD) is Cushing Municipal Airport (CUH), which is located only 13 miles (21 kilometers) NNW of SUD.
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.
- Today a fair amount of air traffic and the Direct TV blimp comes for Cardinals playoffs, as Lambert's airport cannot take the blimp.
- Civic Memorial Airport opened in 1946 and received its current name in 1984.
- 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.
- 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.
- The 2,250 acres airfield sits at 544 ft MSL.