Southwest Airlines’ check-in process at STL is straightforward and efficient. Passengers can check in at one of the many self-service kiosks located throughout the terminal or at the airline’s ticket counter. Southwest is known for its streamlined check-in process, and at STL, travelers can expect a smooth and quick experience. The airline also offers online check-in through its website or mobile app, allowing passengers to save time by skipping the check-in counter altogether.
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