What city does the code GSO correspond to?

The code GSO corresponds to Greensboro, North Carolina. Each city within the Alaska Airlines system is assigned a specific three-letter city code, which is commonly used for ticketing, baggage handling, and itinerary planning. Greensboro, being a significant city in North Carolina, has been allocated the GSO code to make it easily identifiable in airport directories and travel itineraries.

Other cities listed, such as Greenville, South Carolina, Grand Rapids, Michigan, and Gillette, Wyoming, each have their unique codes that do not match GSO. For example, Greenville is represented by the code GSP, Grand Rapids is GRR, and Gillette is GCC. This highlights the importance of knowing the correct city code for efficient travel planning and communication within the airline industry.