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ALN St Louis Regional Airport

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St Louis Regional Airport (ALN) is an airport serving Alton/St Louis, United States.

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Live board data for this airport is not available right now. About 1 scheduled departures were counted at St Louis Regional Airport (ALN) when flight schedules were last measured on September 4, 2026.

    About ALN Airport

    St. Louis Regional Airport (ALN) serves Alton, East Alton and the wider St. Louis metro area as a general aviation and reliever airport, with passenger facilities centered on FBO/terminal services rather than large commercial terminals. No scheduled passenger airlines are based here, so traffic is mainly private, corporate, training and charter flights. Popular travel patterns are typically regional hops around Illinois, Missouri and the Midwest, plus business access to the St. Louis area.

    Frequently asked questions

    The IATA airport code for St Louis Regional Airport is ALN.

    ALN Airport
    St Louis Regional Airport
    Alton/St Louis, United States · GMT-5

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