It depends on how many people you have when you return to Kaili from Huizhou. If you are alone, the most economical way is to take the train.

Huizhou Station leaves at 3: 7 by K731, arrives in guangzhou east railway station at 5:1, with a hard seat of 21.5 yuan, and then transfers to Guangzhou South Railway Station, which takes about 4 minutes, about 1 yuan, takes G296, and leaves at 7:42 and 13:2 to Kaili, which is about 483.5 yuan. The whole journey takes about 8 hours and 1 minutes, and it takes about 52 yuan.

It's about 98 kilometers to drive, and the fuel and toll in China are about 1 kilometer in 1 yuan. The cost of the whole car is about 1 yuan. If there are two people, it is equivalent to the cost of taking the train. If there are 4-5 people, the total cost is cheaper than the train.

the price of the plane is not cheap, and it needs to be transferred, and the total cost is about one person in 1 yuan.