CA 1438 then OM 224 at Beijing
Chongqing → Beijing → Ulaanbaatar
Timetable, Beijing time
18:55CA 1438 from Chongqing at the gate
11:30OM 224 to Ulaanbaatar leaves the gate
16 h 35 apart on the timetable, overnight
OM 224 leaves 16 h 35 after CA 1438 arrives on the timetable: more than half a day, so not a connection we count.