Begin your search for a cheap car rental close to Lassen Volcanic National Park by entering your getaway dates and pick-up and drop-off locations. That’s how competitive a rental car can be around this well-known attraction, but there are a few things that’ll determine the amount you pay — your vacation dates are just the start. Whatever your budget or type of car you want, Expedia has fantastic offers from a variety of car rental companies that’ll get you on the road for less.