To compare the best car rental prices, all you have to do is select your pick-up location (city or airport, you choose), as well as the pick-up and drop-off date and time. It is also possible to rent one-way, just select “Return car to different location”. After you hit “Search”, Rentcars will list the best car rental offers, which you can filter by your favorite rental company, desired car category, price range and more.