The Philadelphia Marriott Downtown is a short 20-minute car ride from PHL Airport. Rideshare (UBER / Lyft) etc. is recommended if you choose this option. For those open to it, Philadelphia's SEPTA public transit system is also an excellent, and less expensive, option. A simple train ride on SEPTA's Airport Line can take you directly from PHL to the Marriott Hotel (SEPTA's Jefferson Station is connected to the Philadelphia Marriott).