Father of my child has moves across the country and we were supposed to go BACK to court when our child turned 2.

We were supposed to go BACK to court to reestablish visitations when our child turned 2. The father moved to California and our child will be turning 5 in a few months. Our child has visited California once for a week (with me traveling back and forth to drop him off/pick him up) in the past 3 years his father has been there. His father wants him to fly out alone at the age of 5 for visits. I'm not comfortable with that. Even though it is cheaper, I have read different airline have different policies and do not always tend/direct the child as needed apparently. I'm not trying to prevent him from seeing his family. I have a Skype account so they can see each other during the week. He has still yet to pay for the name change he wanted in court. (How does this affect our child?) I suppose im asking if our original visitation agreement still stands even though he is now out of state and we haven't gone back to court yet. Thank you.