When you need a premium car rental at San Francisco Airport, SIXT is here. You can easily find our counter by taking the Air Train to the car rental center and going to the 4th floor. Our choices for a car rental at SFO include fun sports cars and convertibles like the Ford Mustang GT, luxury cars and SUVs and practical compact cars and minivans. Choose a spacious SUV for a family vacation in the city, or a convertible that will turn heads. Use our flexible rental periods to book a one-day rental, a weekly rental or however long you need.