China Southern Airlines and China Eastern Airlines have announced that they will cooperate by codesharing on the Beijing to Seoul and Shanghai Pudong to Seoul routes.

By codesharing, the two airlines are extending their network at little cost and travelers will be able to book on either route with either airline and accumulate frequent flier miles with their preferred scheme.

Previously China Southern and China Eastern had launched codesharing on many domestic routes but this is the first time that the two have launched codesharing on international routes.

As a member of SkyTeam, China Southern already codeshares with Korean Air on the Beijing to Seoul and Shanghai to Seoul routes.