March 22, 2022 Air Force plans demos, performances for Air Force Day at the Alamo April 4 Air Education and Training Command officials will hold the annual Air Force Day the Alamo April 2, 2022, from 11 a.m. to 1 p.m. at the Alamo Plaza in downtown San Antonio. The event is free and open to the public, and will feature demonstrations and performances by Joint Base San Antonio units