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

Arrival Airport:

Distance from ALN to RTB:
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- About this route
- ALN Airport Information
- RTB Airport Information
- Facts about ALN
- Facts about RTB
- Map of Nearest Airports to ALN
- List of Nearest Airports to ALN
- Map of Furthest Airports from ALN
- List of Furthest Airports from ALN
- Map of Nearest Airports to RTB
- List of Nearest Airports to RTB
- Map of Furthest Airports from RTB
- List of Furthest Airports from RTB
About this route:
A direct, nonstop flight between St. Louis Regional Airport (ALN), Alton, Illinois, United States and Roatan International Airport – Bay Islands (RTB), Roatán, Honduras would travel a Great Circle distance of 1,574 miles (or 2,533 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 St. Louis Regional Airport and Roatan International Airport – Bay Islands, the route shown on this map most likely still appears to be a straight line.
Departure 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 |
Arrival Airport Information:
IATA / ICAO Codes: | RTB / MHRO |
Airport Names: |
|
Location: | Roatán, Honduras |
GPS Coordinates: | 16°19'1"N by 86°31'19"W |
Operator/Owner: | InterAirports |
Airport Type: | Public |
Elevation: | 39 feet (12 meters) |
# of Runways: | 1 |
View all routes: | Routes from RTB |
More Information: | RTB Maps & Info |
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.
- West Star Aviation is the largest fixed base operations company at the airport.
- 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.
- 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.
- 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.
Facts about Roatan International Airport – Bay Islands (RTB):
- Duty shop, Coffee shop and two café/bars, one each in the check-in and transit area.
- In addition to being known as "Roatan International Airport – Bay Islands", another name for RTB is "Aeropuerto Internacional Roatán – Bay Islands".
- Roatan International Airport – Bay Islands (RTB) currently has only 1 runway.
- The furthest airport from Roatan International Airport – Bay Islands (RTB) is Cocos (Keeling) Island Airport (CCK), which is nearly antipodal to Roatan International Airport – Bay Islands (meaning Roatan International Airport – Bay Islands is almost on the exact opposite side of the Earth from Cocos (Keeling) Island Airport), and is located 12,074 miles (19,431 kilometers) away in Cocos Islands, Australia.
- The closest airport to Roatan International Airport – Bay Islands (RTB) is Guanaja Airport (GJA), which is located 42 miles (67 kilometers) ENE of RTB.
- In 2013, the Interairports completed an expansion and upgraded the existing airport facilities.
- Because of Roatan International Airport – Bay Islands's relatively low elevation of 39 feet, planes can take off or land at Roatan International Airport – Bay Islands 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.