Search and book cheap flights from Houston George Bush Intercontinental Airport to Shanghai with Netflights.
Shanghai has zero airports, so you have more than one option. It could also be worth changing Houston George Bush Intercontinental Airport to include other airports, to see more flights and, possibly, better prices.
Booking a flight to Shanghai with Netflights is easy. You can search by month to see the cheapest day of the week to fly. Plus, you can add accommodation and car hire to your booking.