BEIJING—Sichuan Airlines will begin connecting Chengdu, in southwestern China, with Prague and Zurich from June 23. Sichuan will fly nonstop to Prague; Zurich will be an extension on the route. The carrier is owned by the provincial government of Sichuan, of which Chengdu is the capital. Sichuan has proposed four other routes to the Civil Aviation Administration of China, which would connect Chengdu with Tel Aviv, Cairo, Boston and Copenhagen. It has not started operating the routes ...