How much does it cost to rent a car for a week?

It varies considerably by the renting company and where you rent it. In 2016, the lowest for a major company in New Orleans, LA or Los Angeles CA was about $145 to $175 per week for the basic rental of the smallest vehicles, including fees. Ads that offer vehicles for $6 to $8 a day are likely not including all charges payable for the rental. Rentals at airports usually charge additional taxes and fees.