Air China provides Premium Economy Class seats on the following routes:International routes (bi-directional):Beijing <-> Moscow; Beijing <-> Delhi; Beijing <-> Singapore; Beijing <-> Dusseldorf; Beijing <-> Stockholm; Beijing <-> Taipei; Beijing <-> Bangkok (Flight CA979/980); Beijing <-> Hong Kong (Flight CA111/112); Beijing <-> Vienna; Beijing <-> Osaka (Flight CA927/928); Beijing <-> Seoul (Flight CA123/124, CA125/126); Chengdu <-> Frankfurt.Domestic routes (bi-directional, available on some flights):Beijing <-> Shanghai; Beijing <-> Guangzhou; Beijing <-> Shenzhen; Beijing <-> Chongqing; Beijing <-> Hohhot; Beijing Urumqi2. Special notice:On some connecting routes, Premium Economy Class seats are available only on some segments or on some flights on the route (Example 1: On the route Moscow– Beijing-Qingdao, only the segment between Moscow and Beijing offers Premium Economy. more... See more text