Is there any other way of going from Harbin to Jilin besides by train?

Well, there is no direct flight. But you may take a direct coach to Jinlin from Nangang Passenger Transport Station at No. 26, Chunshen Road, Nangang District. The coaches are scheduled from 6:55 to 17:00 at an interval of about 1 hour. The fare is CNY 66, and the trip takes about 4 hours. Have fun! :)

In addition, if lucky enough, you may see the rime along the bank of Songhua River. Then it is not need to go to Jilin; after all, your travel time is so limited. So good luck!