Systems and methods for predicting the availability of parking spots. A driver of a first vehicle that is parked in a parking spot inputs into a device, such as a smartphone, an estimated time of occupancy of the parking spot. This information is transmitted by the device to a server. A driver of a second vehicle may transmit to the server a request for a vacant parking spot. The server uses information, such as the estimated time of occupancy, to determine an expected wait time for the second vehicle to obtain the parking spot occupied by the first vehicle. The expected wait time is transmitted by the server to the driver of the second vehicle which can then drive to the parking spot when vacated. The server may provide driving directions to the driver to reach the vacated parking spot.