Allegiant Air AUS Terminal flies from the South Terminal at Austin-Bergstrom International Airport (AUS), which is a different building than the main Barbara Jordan Terminal. The South Terminal offers an efficient and streamlined travel experience with limited services that suit Allegiant\s budget model. Travelers can buy flight tickets online or at the ticket counter of the terminal, which usually opens 2 hours prior to scheduled flights. Allegiant has self-service kiosks and attended check-in counters for boarding documents and bag check. Baggage help is provided for damaged or misplaced bags through Allegiant\s web support and at the baggage service desk on location. Flight information is visible within the terminal, and live updates are available through the Allegiant mobile app. Customer assistance can be obtained through the website of the airline and at the terminal counter.