A rental car at Cologne/Bonn Airport costs 30 $ for one day. For a week, you can get a rental car for as low as 209 $ on average. Auto Europe offers the cheapest car rental at Cologne/Bonn Airport.
Cologne/Bonn Airport is open 24 hours. The opening hours of the car rental companies vary depending on the provider. Picking up the rental car outside the opening hours is possible without any problems for a small additional fee.
A rental car without credit card at Cologne/Bonn Airport is available from 33 $ per day.
Plan enough buffer time for the return of the rental car to your onward flight. Depending on the refueling regulations, you may have to fill up your rental car before you return it. A return outside the opening hours is possible without any problems. Place the vehicle keys in the safe provided for this purpose.
24 hours before the start of the rental, the cancellation is free of charge during the opening hours of Driveboo.