... if you're flying during the Labor Day weekend, 'cause Charlotte's airport is sure to be crowded. Orbitz Insider Travel is predicting only Chicago's O'Hare is going to be busier (via Travel Mole):

After O'Hare, the busiest airports you might to avoid if at all possible are, in order: Charlotte Douglas, Philadelphia International, Hartsfield-Jackson Atlanta International, McCarran International, La Guardia Airport, Denver International, Los Angeles International, Phoenix Sky Harbor International and Dallas/Fort Worth.