Discover San Antonio Head down South with our latest release for Microsoft Flight Simulator: San Antonio (KSAT). Opening in 1942, under the name “Alamo Field”, it was initially used by the United States Army Air Forces as a training base. Today, San Antonio International Airport features 53 non-stop flights across the Continental US and Mexico. San Antonio showcases the team’s talent with unparalleled attention to detail thanks to a cooperation with the City of San Antonio and Airport Operations who provided invaluable insight and data to create the most realistic rendition currently available.