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The airport code for Knoxville, Tennessee, is TYS, which stands for McGhee Tyson Airport. This three-letter identifier is used to simplify communications regarding flights, reservations, and baggage handling at airports. Each airport has a unique code, typically derived from their name or location. TYS is a well-recognized code in the aviation industry, making it easier for travelers to book flights, navigate itineraries, and identify the airport associated with Knoxville. This clarity is particularly important in a sector where numerous airports may have similar names, ensuring efficient operations and improving the passenger experience.