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Crunchy chickpeas - This guilt-free snack comes in a variety of flavors and offers ample protein to keep you satiated. You can also add them to a lackluster in-flight salad.

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Oatmeal packets - It might sound strange, but it’s actually genius! Just ask for a cup of hot water on your flight and suddenly you've got a tasty, filling, and hot snack, rich in fiber and omega threes.

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Mini Babybel cheese wheels and crackers - These creamy and delicious portable cheese wheels are a great source of calcium and protein. Plus, it's way cheaper than in-flight cheese and crackers.

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Frozen grapes - Grapes run the risk of being squished, but if you freeze them before your flight, then pop them in a reusable on-the-go bag, you'll enjoy a refreshingly sweet and mess-free snack.

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Chopped apples with cinnamon and almond butter - Upgrade the simple, durable fruit to a decadent treat with cinnamon and almond butter.

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Pistachios - This plant-based protein will hold you over, and cracking them open will give your hands something to do while you wait!

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Jerky - This high-protein snack is easy to store, mess-free to eat, and will keep you full throughout your flight.

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Probiotic drinks - Traveling, especially flying, can throw off your bathroom routines, so it's important to keep things... regular. These tiny drinks are tasty, and small enough to bring on the plane.

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Mandarins - Seedless and easy to peel, mandarins are a simple grab-and-go option that will provide you with natural energy and vitamin C.

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Packaged olives - When those salty cravings hit, olives are the perfect solution. Make sure you get them without liquid!

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Nut butter packets - At some borders, you won’t be allowed to travel with produce, so bringing along nut butter packets is a great way to enhance whatever you get in the airplane.

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Snack bars - The best bet for last-minute packers are ready-made healthy granola bars full of nuts, grains, and natural sweets.

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Unsweetened toasted coconut chips - Get your taste buds to the tropics before your flight does and sustain your energy levels while you're at it. Pro tip: get them chocolate coated if you want some cocoa-coco.

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Roasted seaweed - This low calorie treat allows you that salty satisfaction, but also fills you up with a ton of vitamins and minerals, including calcium, iron, magnesium, zinc, and vitamins C and A.

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Greek yogurt - Small cups of Greek yogurt make for a convenient and light snack that will leave your gut feeling happy and healthy.

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Dates with almond butter - Satisfy that sweet tooth and get some vitamins, minerals, proteins, and healthy fats in while you're at it.

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String cheese - String cheese is a good source of protein that easily fits in a personal bag or carry-on. What's more, it doesn’t smell, which is important when traveling in enclosed spaces.

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Dried fruit - If you often find yourself wandering by the candy sections at airport newsstands, try packing dried fruit like mango or apricots instead.

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Hummus and pita chips - You can get this savory snack prepackaged, or just make your own hummus!

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Dry-roasted edamame - A light-weight snack pulling heavy weight, dry-roasted edamame reportedly offers 14 grams of protein and 8 grams of fiber per serving.

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Peanut butter and jelly sandwich - There's nothing more satisfying than a PB&J sandwich. Wholegrain bread is even more hearty, and it won't get too soggy. Just check for allergies first!

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Popcorn - People tend to eat more while traveling because there isn't much else to do. Popcorn is great for those who want the maximum munching for the minimum calories (that is, if you pick a low-calorie option).

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Kale chips -

Avoid potato chips and try these delicious, nutritious, and addictive kale chips. Kale doesn't lose its nutrition when air crisped, so you're getting all the superfood benefits and the satisfying crunch.

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Trail mix - Trail mix is a great source of fiber and protein to keep you feeling full. Plus, you can customize it to your liking. Try macadamia nuts, white chocolate, and dried bananas for something indulgent.

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Protein bars - Look for bars that offer a good combination of protein and fiber, but without too much added sugar.

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Apple chips - The crunch of a chip and the caramelized sweetness of candy, but low in fat and high in fiber! Enjoy the fresh flavor of apples without worrying about browning or refrigeration.

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Moon Cheese - The manufacturers of Moon Cheese developed a process to remove moisture from cheese, thereby letting you eat cheddar, gouda, and pepper jack wherever and whenever, no refrigeration necessary.

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Protein powder - Many protein powders come packed with vitamins and minerals, and keep you full for longer. Bring a scoop in a bottle, and just add the liquid after the security check or in-flight.

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Pretzels -

If you love a classic in-flight pretzel bag, bring your own (perhaps coated in yogurt) so that you won’t be tempted to steal your neighboring passenger’s while they're asleep.

See also: Food facts that airlines don't want you to know.

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