How long does it take to go to Changbai Mountain from Jilin City?

First, you are suggested to take a bullet train from Jilin Railway Station to Antu West and the duration is about 1.5h.
Then transfer to Antu Bus Station after around 5 minutes' taxi drive. There you can take a coach to Erdaobaihe Town in around 3h. Upon arrival, charter a car from the town to reach the mountain in nearly 1h.