Find great value on US Airways flights from TPA to PHL when you book with CheapOair! Known as the Birthplace of America, Philadelphia is a charming city that is particularly famous for its historical sites. Travel back in time by visiting the Independence Hall where the Declaration of Independence was signed, also walk a few yards from here to the famous Liberty Bell which is considered the symbol of America's independence from the British rule. Art lovers should visit the Philadelphia Museum of Art which contains rare paintings from the 15th century including works of Pablo Picasso. Take your kids to the Philadelphia Zoo which is America's oldest zoo and explore more than 2000 species of animals.