I love the triple hydration priority here @Shannon_Staff!
I'm all for being hydrated on a plane so this involved moisturisers for face and body, lip balm, eye drops and also nose spray! I skip makeup unless it's a short 1-2 hour flight and make sure I have a face mask in my luggage for the evening of arrival.
While it's fun to drink on a plane, I restrict myself to one glass of wine or one cup of tea (or both if it's a super long flight) and stick to water and herbal teas instead. I pack my own tea bags so I can have something familiar and delicious.