What Terminal is Delta Airlines at PIT? Delta Airlines operates out of the Main Terminal at Pittsburgh International Airport (PIT). The Main Terminal, also known as the Landside Terminal, serves as the central hub for check-in, security, and baggage claim for Delta Airlines passengers. With its range of amenities including dining options, retail stores, and comfortable waiting areas, the Main Terminal provides a convenient and pleasant travel experience for all Delta Airlines travelers at Pittsburgh International Airport.
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