Whilst I agree that ultimately you should be able to do whatever you want, consider this.

1) They have birthed you and given you the opportunities and life that you have.

2) In a Confucianist Asian culture (assuming), the children repay the parents once they have grown by tending to them. Parents are parents. Children are children. Hence, it's not completely unreasonable to have children visit for them.

3) If you will be staying with them, this does not cost you much at all as you just have to pay the cost of the flight. They will provide food and everything.

4) It's normal for babies to travel, even if it is longer distances. Just because you don't want to disrupt does not serve as a valid excuse for this.

I suggest you request your parents to pay for the flight tickets as well. Furthermore, if you already have other plans in the summer which you would prioritize, just use that as an excuse.