Originally Posted by nachtnebel

It's an interesting number because it represents a pool of potential flyers, including once-in-a-blue moon flyers. A fair amount of traffic comes from this pool, one-timers, or infrequent flyers. This could represent numbers of people who won't fly now. They are total-opt outs; you'd never see them at the airports. Declining passenger numbers in excess of declining economic stats indicate that this is indeed happening.