By teen boys loved Disney until my daughter came along and I started including princess meals and meet and greets in our plans. They they started not liking it and now, early 20's wont go with us anymore
The flying part is easy peasy now a days. They can bring their earbuds and listen to their music. Depending on the airline, most likely can watch a movie too. Granted our flights are only 3 hours. Not sure where you are flying from.