United Airlines operates from Terminal 1 at St. Louis Lambert International Airport (STL), primarily using Concourse A. United Airlines At STL Terminal passengers can check in at United's counters or use self-service kiosks located on the upper level. TSA PreCheck is available at the centralized security checkpoint for quicker processing. While United does not offer a dedicated lounge at STL, Terminal 1 provides various dining and shopping options, along with comfortable seating areas. For ground transportation, options include rental cars, taxis, ride-sharing services, and the MetroLink light rail, which offers convenient access to downtown St. Louis and surrounding areas.
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