Get on the road for less with Budget Car Rental at San Antonio International Airport. Our counter is conveniently located in the lobby of the off-site rental car facility. We make it easy to find the right vehicle for your trip, from compact cars and SUVs to vans and more. Whether you are here for a quick business meeting or a family vacation, our convenient airport location helps you start your journey quickly and affordably. Travel smart with dependable service and a fleet built for value and choice. Book your rental car now.