PHILADELPHIA - If you're planning a trip to Philadelphia, you've probably wondered how much it costs to park at the Philadelphia airport. The airport offers several parking options at various rates, ranging from $4 for one hour to $22 for four hours. You can also find cheaper off-site parking at hotels nearby. These options generally include shuttle buses to and from the terminals. These options are available at various prices, but you should check rates and amenities before booking a spot.