UO 251 then CX 617 at Hong Kong
Sanya → Hong Kong → Bangkok
Timetable, Hong Kong time
22:25UO 251 from Sanya at the gate
22:10CX 617 to Bangkok leaves the gate
23 h 45 apart on the timetable, overnight
CX 617 leaves 23 h 45 after UO 251 arrives on the timetable: more than half a day, so not a connection we count.