How much is the one-way business class flight from Philadelphia to Shanghai Pudong? Is the round-trip price cheap?

Shanghai to Philadelphia air ticket One-way: 4,600 yuan/round-trip 6,600 yuan Business class 8,600 yuan/first class starting from 12,000 yuan Departure city: Shanghai PVG Arrival city: Philadelphia PHL Airlines: AA-American Airlines UA-United Airlines DL-Delta Airlines MU-China Eastern Airlines Aircraft type: Boeing 777 Stay time: 180 days Cabin class: First class Baggage regulations: free checked luggage of 23KG. Hand luggage 7KG Airlines: United Airlines (UA), China Eastern Airlines (MU), American Airlines (AA) Shanghai to Philadelphia air tickets business class business class first class discount promotion of 30% off Shanghai to Philadelphia business class air tickets Shanghai to Philadelphia first class air tickets Shanghai to Philadelphia first class air tickets | Shanghai to Philadelphia first class air tickets | Shanghai to Philadelphia first class air tickets price Warm reminder: In order not to delay your trip, please arrive at the airport three hours in advance for international flights to go through security check and check-in procedures. International air ticket prices change every day. Airline ticket prices are updated at any time with the civil aviation system. Please refer to the telephone consultation price for the actual transaction price. Shanghai to Philadelphia Airport Time Flight Schedule (Delta Airlines) Flight Number Airline Departure City Departure Time Arrival City Arrival Time DL180 Delta Airlines Shanghai Pudong 10:00 Detroit 12:15 DL3624 Delta Airlines Detroit 15:18 Philadelphia 17:17 Shanghai to Philadelphia Airport Time Flight Schedule (United Airlines) UA858 United Airlines Shanghai Pudong 12:10 San Francisco 08:26 UA552 American Airlines San Francisco 10:40 Philadelphia 19:06 Reminder: Do not rush to remit money or pay a deposit before seeing the real thing to avoid being cheated. Travel agency-air tickets and ferry tickets related pictures