Route 503 – Weekday Walnutport / Slatington – LCCC – LANta Flex For reservations call 888-287-8818. Reservation agents are available to take your call Monday – Friday 8:00 AM – 4:00 PM. Reservations must be made at least one day prior to the date of travel (or the previous Friday for Monday trips) and no more than 14 days in advance. Repeat trips can be set up as needed. Quick Links Route 503 How It … Continue reading Route 503 – Slatington/Walnutport Flex