AirTran Airways said on Thursday that its August traffic rose 1.7 percent. That wasn't quite as fast as it added seats, so its occupancy fell 0.4 percentage points.
AirTran, a unit of AirTran Holdings Inc., said it flew 1.88 billion revenue passenger miles in August, or one passenger flown one mile. That was down from 1.85 billion revenue passenger miles in August 2009.
Capacity, measured as available seat miles, rose 2.1 percent to 2.22 billion, from 2.18 billion a year earlier.
Occupancy, called load factor, fell 0.4 percentage points to 84.5 percent.
For the first eight months of the year, traffic was up 6 percent to 13.47 billion revenue passenger miles. Capacity rose 4.5 percent to 16.43 billion available seat miles. Load factor rose 1.2 percentage points to 82 percent.
AirTran Holdings shares fell a penny to close at $4.64.