Find a car rental at San Diego Airport today! Travcar Car Rental has a wide variety of great cheap car rentals in San Diego. Rent a car with Travcar. Travcar Car Rental has the best car rental deals & discounts in San Diego. Rent a car at San Diego Airport today with Travcar Car Rental! We offer car rental rates that are guaranteed to be lower than all major car rental companies. Experience the difference with Travcar and enjoy big savings every time you visit San Diego. Even after you have left our office we hope you will take the time to call us with any questions. We feel a sense of responsibility for you while you are in our city, so call for directions or our thoughts on any points of interest you are considering. We will be happy to give you a locals perspective.