If one person is a food snob who must intricately research and plan every meal, and the other is…not…there will be fights every day. Pardon—there will be three fights a day for every meal. One is starving and just wants to eat what’s nearby while the other insists on driving thirty minutes to the Michelin star restaurant.
Guess what? Planes are noisy. You may get those teens to talk a bit quieter or that one person to stop their baby from crying but you’ll still be in a confined space with hundreds of people and some very loud engines. Let it go.
A few hiccups are inevitable, but don't let your first time away together be your last time.