US Airways, the second busiest air carrier at McCarran International Airport, will cut dozens of jobs at the Las Vegas airport later this year. Parker said 233 airport support positions would be cut nationwide at 10 airports with Las Vegas, Pittsburgh and Tucson, Ariz., being the hardest hit by the decision. US Airways officials wouldn’t say how many jobs would be cut at McCarran. As of today, the airline had 817 Las Vegas-based employees.