ALNmedium airport

St Louis Regional Airport

Alton/St Louis, United States

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ICAO

KALN

Elevation

544 ft

The gateway in a glance

The Essence of St Louis Regional Airport

ALN

Location

Alton/St Louis · IL · United States

Position

38.890°, -90.046° · 544 ft elev.

Visa & Entry

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A closer look

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TravelerPulse profile

Regional gateway serving the greater St. Louis metropolitan area.

Opened

1928

Location

Alton, Illinois, United States

St. Louis Regional Airport, designated with IATA code ALN and ICAO code KALN, is a public airport located in Alton, Illinois, situated on the bluffs above the Mississippi River northeast of St. Louis, Missouri. It serves general aviation, charter, and limited commercial operations for the bi-state metro area. The airport is owned and operated by the Bi-State Development Agency, which also oversees transportation infrastructure across the St. Louis region. While it does not handle major scheduled commercial airline service, it supports corporate aviation, flight training, and cargo operations. The facility features multiple runways and hangars capable of accommodating a range of aircraft sizes, making it a practical alternative reliever airport to St. Louis Lambert International Airport for general aviation traffic.

Terminals

The airport has a general aviation terminal facility rather than a traditional commercial passenger terminal with airline gates.

Getting to & from

The airport is accessible primarily by car via local roads connecting to the greater Alton and St. Louis metro highway network; no dedicated rail or bus transit serves the airport directly.

Notable facts

›Located in Alton, Illinois, on bluffs above the Mississippi River northeast of downtown St. Louis.
›Owned and operated by Bi-State Development Agency, a regional transit and infrastructure authority.
›Functions primarily as a general aviation and reliever airport rather than a major commercial hub.
›The airport has two runways suited to handle a variety of piston, turboprop, and jet aircraft.
›Previously known as St. Louis Downtown-Parks Airport before rebranding as St. Louis Regional Airport.

Official website Wikipedia

This profile is provided for general information only. Details may be inaccurate or outdated — always verify with the airport's official website before acting on them.

Airlines serving this airport

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Routes

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Passport, Visa & Immigration

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Latest news

RiverBender.com· 10/9/2026

Local Aviation Group to Host Pancake Breakfast at St. Louis Regional Airport

Read at RiverBender.com

Illinois Business Journal· 6/10/2026

Air Race Classic coming to St. Louis Regional Airport this month

Read at Illinois Business Journal

Alton Telegraph· 6/22/2026

Air Race Classic takes off from East Alton with 106 women pilots

Read at Alton Telegraph

The Business Journals· 3/5/2026

Here are the St. Louis region's top air travel destinations — and the most underserved

Read at The Business Journals

AdVantageNews.com· 9/25/2026

Fly-In and car show this weekend

Read at AdVantageNews.com

RiverBender.com· 9/23/2026

30th Annual Wings-n-Wheels Fly-In Promises Tours, Flights and Fun at St. Louis Regional Airport

Read at RiverBender.com

About on Wikipedia

St. Louis Regional Airport

Airport in Bethalto, Illinois

St. Louis Regional Airport is a public airport four miles (6 km) east of Alton, in Madison County, Illinois, United States. It is in the village of Bethalto but its mailing address is East Alton.

Read on Wikipedia

Text from Wikipedia, licensed under CC BY-SA. May be out of date — verify important details.