Write Notes To Prepare Other Passengers
Realistically, there is no hope that your child won’t cause a scene on the long flight. The best way to battle this problem is to write notes to your fellow passengers to apologize in advance. One parent even went as far as to include candy with the note.
Of course, this trick won’t work on every passenger, but at least they’ll know what to expect, even if they’re not happy about it. If you pass out the notes early enough, they may even have enough time to request a new seat further away.