Two new cities for AirTran

AirTran has unveiled its two newest destination cities:

Portland, Maine

, and

Charleston, South Carolina

. The airline is offering special introductory fares for each as well.

Portland will see flights to/from Baltimore (beginning June 7, with prices starting at $69 each way) and Orlando (June 9, $99 each way).

Charleston will begin May 24 and fly to/from Atlanta; introductory fares on that route start at $59 each way.

All told, AirTran now serves 56 destinations.