Delta Air Lines and American Airlines are both ramping up China flights starting later this year.
It comes as the US and China agreed to double the number of US to China flights currently permitted.
Delta Air Lines will fly daily to Shanghai Pudong from Seattle and three times a week from Detroit.
Delta has a partnership with China Eastern Airlines for onward flight connections within mainland China and beyond.
American said it would increase its four times a week Dallas to Shanghai services to daily flights.
