1. Pack granola bars, dried fruits, and nuts: These snack essentials will curb your hunger if you're on a flight that doesn't serve food. You likely have one or all these items at home, so toss them in a Ziploc bag, stuff them in your duffel, and you're good to go.
2. Head straight to a smoothie or frozen yogurt spot: Bypass popular chains like McDonald's or Dunkin' Donuts when you want on-the-go breakfasts and fill up on a filling smoothie instead. If you do succumb to your Dunkin' habit, choose the egg white veggie flatbread over a sugary muffin.
3. Make your own inflight "protein plate": You've likely noticed when you order the protein plate on flights you typically receive an assortment of cheese, grapes, and boiled egg. Instead of overpaying for a snack pack, prep your own version and include your favorite cheese slices.
4. Make your own sandwich or bagel: It's easier to choose the less-fatty options when you're in charge of the ingredients. Even though you are still consuming carbs, you can balance that out with fillings like lettuce, tomatoes, spinach, eggs, or turkey; check out these ideas of how to make a healthy sandwich.
5. Bring an empty thermos and tea bags: Fight the urge to grab a coffee or soda to stay caffeinated before and during your flight. Instead, opt for green tea or one of your favorite varieties. All you need is hot water, which you can get anywhere in the airport and on the flight.