​Effective Sunday, September 23, beginning at 12:00 AM, there will be 2 bus routes serving Economy Parking in order to provide quicker service to and from the Airport terminals. The Red Route will serve Shelters 8 through 16 (parking aisles A through M).  The Blue Route will serve bus Shelters 1 through 7 (parking aisles X through Y). Please be sure to check and remember which route you are on. For further assistance, contact the Philadelphia Parking Authority at PHL at 215-683-9842.