St. Petersburg Clearwater International Airport

St. Petersburg Clearwater International Airport carries the IATA code PIE — the three letters printed on boarding passes and baggage tags — and the ICAO code KPIE, used in flight plans and by air traffic control. It serves Pinellas Park, United States.

IATA codes are assigned by the International Air Transport Association for passenger-facing use; the four-letter ICAO code encodes region and country and belongs to the operational side of aviation.