PSA Airlines, Inc. is an American regional airline headquartered at Dayton International Airport in Vandalia, Ohio, that flies under the American Eagle brand for American Airlines. PSA is a wholly owned subsidiary of American Airlines Group. PSA has crew bases in Knoxville, Tennessee; Charlotte, North Carolina; Cincinnati, Ohio; and Dayton, Ohio. It has maintenance bases in Charlotte, North Carolina; Cincinnati, Ohio; Dayton, Ohio and at the Akron–Canton Airport in Green, Ohio.