AirTran A+ Rewards elite-level members will now have up to two years to redeem their credits for award flights, up from the standard one year for all other members. The two-year redemption rule applies to all A+ Rewards credits earned on or after Nov. 13, 2007. A+ Rewards members are welcomed into elite when they have earned 20 or more credits flying AirTran Airways within any 90-day period or 50 or more credits within any 365-day period.