Airport
ALN St Louis Regional Airport
St Louis Regional Airport (ALN) is a small airport near Alton/St Louis, United States with no regular commercial traffic. Below: its exact location and the nearest airport with flights.
IATAALN
ICAOKALN
Elevation166 m
Airports nearby
Other options near Alton/St Louis
Q&A
Answers to your questions
What is St Louis Regional Airport's code?
The IATA code is ALN, the ICAO code is KALN. It's a small field with no regular commercial traffic.
What's the nearest airport with scheduled flights?
St Louis Lambert International Airport (STL), about 32 km away.
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Sources: Airport data: OpenFlights (ODbL) · Route network: OpenFlights routes · Getting-there notes: Around the World, checked 2026