17 Things You Should Always Do Before Boarding Your Flight
16. Eat Before You Go (Smartly)

Airport food is notoriously expensive and often less-than-nourishing. Eating a balanced meal before heading to the airport can save money, improve digestion, and help you avoid greasy snacks that sit heavily mid-flight. Choose a protein-rich, moderate-carb meal to keep energy stable without spiking your blood sugar. Avoid salty foods that may lead to dehydration, and if you’re prone to motion sickness, stick to something light and bland. If you’re flying long-haul, pack healthy snacks—trail mix, fruit, or a sandwich—that beat overpriced terminal fare. You’ll feel better and make smarter decisions when hunger isn’t driving the plane.