This phase IV investigational trial is being conducted to evaluate the efficacy of a 2-week treatment of fluticasone propionate nasal spray (FPNS) vs. cetirizine on allergic nasal and ocular symptoms and quality of life in adult subjects with SAR. It is hypothesized that FPNS provides greater nasal symptom relief than cetirizine. The primary measure used to test this hypothesis is the change from baseline over two weeks in reflective total nasal symptom score (rTNSS) compared between FPNS and cetirizine. Approximately 648 subjects will be randomized into a 1:1:1:1 ratio of treatment allocation across approximately twenty-five to thirty-five sites in the US during the 2013 fall allergy season. All subjects will be outpatients. The total duration of study will be approximately 21 days including 7 days of screening period, and 14 days of treatment period.