Update: It seems like people’s credit cards are being charged the correct fares despite what is being shown on screen. For that reason I would be cautious about booking these fares.
Right now there are some crazy fares between China and various destinations including Singapore, Australia and the Philippines. Depending on the route, the price will be as low as $1 USD roundtrip.
This obviously won’t last long, but there does seem to be widespread availability on several dates. For more information about booking and what routes are available, see Secret Flying.