Approximately 839.3 kilometers.

According to Baidu Map, it is approximately 839.3 kilometers from Harbin to Xingcheng.

You can take the high-speed rail to get there, which takes about 4 hours.

First, take the G3492 train in Harbin and get off at Huludao North Station. After that, you can transfer to K3 line and go to Liaogong Dahualian Commercial Building Station. Then transfer to line 17 and get off at the Social Security and Public Security Bureau Station to go to your destination.

You can also take a bus from Harbin to Xingcheng. The bus takes about 3 hours. The distance between the two places is 839.3 kilometers. You can get on the bus at the Haxi Highway Passenger Terminal and go directly to Xingcheng.