The cost for park-and-ride lots at airports varies based on the location. The average is about $6 to $9 a day to park at the airport as of 2015.
At the Atlanta International Airport, the park-and-ride lot charges $3 an hour or $9 to park for the entire day at the North and South terminal parking lots. Free bus shuttles go back and forth between the parking lot and the terminals throughout the day.
The park-and-ride lot at the Raleigh-Durham International Airport charges $6 a day. This parking lot also provides a free shuttle bus. The lot takes cash for parking between 7 a.m. and 2 a.m. every day and credit cards any time of the day.