You can pick up a cheap car rental near Ross Castle, but certain things will affect the cost of your wheels. Among these are your travel dates, pick-up and drop-off locations and extras like a toddler seat. Scoring a vehicle that matches your budget and needs is a breeze with Expedia. Browse our exclusive offers from a range of car rental companies, and then fasten your seat belt and uncover Ross Castle and beyond from the comfort of the driver’s seat.