Airtran "Early Bird" Sale to/from Atlanta

You're better off taking the first flight of the day if you want to avoid delays (in the same way that if you're your dentist's first appointment of the day you won't end up sitting in the waiting room for hours).

Even better, Airtran is having an "early bird" sale on flights departing Atlanta before 9 AM. These are excellent prices, and are for travel between Sept. 5 and Nov. 7 on Tue/Wed/Thu/Sun only. The sale ends on Aug. 9, midnight ET, so  don't dilly dally.