American Airlines Expands on Cathay Pacific Partnership CheapOair Staff July 15, 2011 general Codesharing Agreement Includes More Routes American Airlines announced plans to expand on their codesharing partnership with Cathay Pacific, it will now include flights to Cathay’s Asian network. Cathay’s new flights between Chicago-Hong Kong and Hong Kong-Ho Chi Minh City will now be a part of the codesharing agreement. The airlines went in on the codesharing venture in 2003. Source: Forbes