Don't know if this helps much, but found the same flights you were looking for via airfare.com for $751.03 all in.

Airline Flight Number Dep City Arr City Dep Date Dep Day Dep Time Arr Time Stop Num.
OutBound:
United Airlines 857 LAX-Los Angeles Intl, California, USA PVG-Pu Dong, Shanghai, China -Excl Hong Kong Sa 17NOV Thu 11:33 Am 07:30 Pm 1
InBound:
United Airlines 858 PVG-Pu Dong, Shanghai, China -Excl Hong Kong Sa LAX-Los Angeles Intl, California, USA 29NOV Tue 01:45 Pm 11:18 Am 1

Your credit card will be billed for a total of USD $ 751.03.