Long-term car rental is basically any rental that lasts 28 days or longer, and you can usually keep it for up to a year. Planning an extended stay somewhere? Long-term car rental can be a surprisingly affordable way to explore without being tied down. Find a long-term car rental Quick summary . Long-term car rental kicks in at 28+ days and can stretch up to 12 months, with daily rates dropping the longer you commit. Monthly costs range from $400 to $1,500+ depending on vehicle type, location and season – economy cars and suburban pickup spots are your budget-friendly friends. Flexibility is the big win over leasing : extend your rental, swap cars mid-trip or return early without the paperwork headache. All major rental companies play the long game – Avis, Budget, Enterprise, Hertz and others offer programs with perks like unlimited mileage and roadside assistance. Pro move: book the cheapest car for daily use and upgrade only when you actually need more space or power.…