The present study examined the utility of testing noncognitive aptitudes as a predictor of graduation from US Air Force air traffic controller (ATC) training. A total of 1,003 training candidates participated in the study. Results of logistic regression indicate that noncognitive areas of functioning at the start of training significantly predicted graduation beyond the effects of a measure of cognitive aptitude. Higher levels of emotional self-awareness, self-actualization, reality testing, stress tolerance, happiness, and approach to problem solving best differentiated graduates from nongraduates. The results of the study suggest such areas of functioning are important for training success.