Trans States Airlines was a regional airline in the United States that operated from 1982 until 2020, when it shut down due to the COVID-19 pandemic. It was owned by Trans States Holdings and headquartered in Bridgeton, Missouri. At the time of its closing, the airline operated flights for United Airlines under the United Express brand. Trans States Airlines ceased all operations on April 1, 2020.

Trans States Holdings, Inc. is a privately owned airline holding company in the United States, which owns and operates GoJet Airlines. The holding company is headquartered in Bridgeton, Missouri near St. Louis Lambert International Airport. The holding company formerly owned and operated Trans States Airlines and Compass Airlines until their cessation of operations on April 1, 2020, and April 5, 2020, respectively.