Originally Posted by gleff
http://www.airtran.com/info/bclass/index.jsp
Elite members continue to get confirmed upgrades to business class at booking on full fare tickets, and purchased upgrades remain available the day before travel on all other fares.
While Elites (much like DL's Medallions) like the free upgrades, its a great way for AirTran to add incremental revenue. It would be nice if they would let us upgrade from the lower fares for a reduced rate : Then again, a $35 upgrade still is great.