Best to drink hot water on the airplane and avoid digestion if possible. Try taking small bottles of raw honey raw coconut oil or raw butter on the plane to add to hot water. Avocado, sliced raw cheese, and sliced cucumbers are good snacks if you have a long flight and need food. It is also advisable to bring black pepper while traveling to add to hot water to help cut any nausea or stomach discomfort. Ginger powder is helpful to add to hot water while flying if congestion is present to help avoid altitude ear aches.