what are the requirements for a visa to china with a going and return flight ticket?

Hello Joel, do you mean that you are applying for an L type with the roundtrip air tickets? If so, other documents you need to provide are your valid passport and a photocopy of its data page, and a completed application form affixed with your recently taken color photo.

You can get contact with the embassy to make clear the fees for application.
Tel.: 1-473-439-7716
Email：chinaemb_gdmfa.gov.cn