Philadelphia, PA USA - Embassy Suites Philadelphia Airport is proud to host the CHOP (Children’s Hospital of Philadelphia) Annual Halloween Party on 10/28th in conjunction with the Philadelphia Phillies. This is the 4th year the hotel is hosting the event. Kids fighting cancer and their families come for trick or treating and games to enjoy some seasonal fun. Spoiler Alert ! The Philadelphia Phillies one and only Philly Phanatic makes an appearance and there are great give a ways.