CYS stands for Cheyenne Airport. Codes like this one are often called IATA codes, a set of identifiers established by IATA (International Air Transport Association) that is widely used by airlines and the aviation industry.
Travellers will need to book flights to Cheyenne (CYS) if they wish to fly to Cheyenne. The Cheyenne airport is 1.8 km from the city centre.
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