Every Wednesday and Sunday from Aug 20 to Oct 22, flight CZ683/4 is rescheduled to take off from Harbin at 8:30 am and arrive in Seoul at 10:50 am. The return flight leaves Seoul at 6:50 pm and arrives in Harbin at 9:20 pm.
The departure time of flight CZ6054/3 is 3:20 pm and 11:50 am in Kiamusze and Seoul with landing times at 5:50 pm and 2:20 pm for the same period every Wednesday and Sunday.
For more detailed information, passengers can call the China Southern Airlines service hotline at 95539.