Terminals at AUS

45-minute security buffer is standard at Barbara Jordan Terminal Barbara Jordan Terminal runs on a single main security checkpoint that feeds the whole horseshoe concourse, and locals on FlyerTalk say 45 extra minutes over your normal airport routine is a smart hedge. All flights for American, United, Delta, Southwest, Alaska, JetBlue, Frontier, Spirit, Aeromexico, Air Canada, British Airways, KLM, Lufthansa, Hawaiian, Allegiant, Avelo, Sun Country, Viva…