At the airport of course.
Yes
Long-Term PHL Parking There are two options for long-term parking at Philadelphia Airport: the terminal parking garages which cost $24 per day, and the Economy Parking Lot that charges $11 per day. There are also private off-site parking facilities that charge only $8 per day and provide shuttle service.
Of course... this is what airports do for travelers who are coming back in a couple of days! Is called a weekly or a long term lot.
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