CA 1388 then BR 715 at Beijing
Sanya → Beijing → Taipei
Timetable, Beijing time
18:45CA 1388 from Sanya at the gate
13:55BR 715 to Taipei leaves the gate
19 h 10 apart on the timetable, overnight
BR 715 leaves 19 h 10 after CA 1388 arrives on the timetable: more than half a day, so not a connection we count.