Super cheap flights from Hong Kong to Philadelphia, USA for only HK$3,791 (~$480 USD) return with United Airlines.
One of the most historic cities in America, Philadelphia is an ideal place to spend a week. Philadelphia has also some outstanding art museums, including the Rodin Museum. After digesting all of that history, be sure you save room for a classic Philly cheese steak sandwich.
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Image Credits: Rob Shenk