
If you're travelling through Seattle-Tacoma International Airport and want to bring snacks with you, it's important to know the rules. The good news is that yes, you can bring packaged snacks through airport security. In fact, you can bring most snacks through security, as long as they're solid, dry foods that are sealed in a leak-proof container. This means that snacks in their original packaging usually pass with no problem, as they're sealed, properly labelled, and easy to identify. So, feel free to bring packs of peanuts, protein bars, granola bars, nuts, chips, crackers, cookies, and more. Bread, cereals, candies, and chocolate (hardened) are also fine. Fresh foods such as raw meat, seafood, fresh fruit, and vegetables are usually fine, too, as long as they're sealed to prevent any smells and juices from leaking out. However, international flights are typically stricter with fresh foods, and special guidelines are in place for liquids, baby food, and breast milk.
| Characteristics | Values |
|---|---|
| Liquids | Liquids must meet certain requirements. Liquid and gel snacks are allowed in carry-ons if they abide by the 3-1-1 rule. Liquid size and quantity don't matter in checked bags, but overweight bags may carry additional fees. |
| Solid foods | Solid, dry foods that are sealed in a leak-proof container are generally allowed. This includes items like bread, crackers, cookies, chips, and candy. |
| Fresh foods | Fresh foods like raw meat, seafood, eggs, and vegetables are usually fine in carry-on luggage if they are sealed to prevent smells and juices from leaking. However, international flights are stricter with fresh foods. |
| Packaged snacks | Packaged snacks are typically allowed, such as bread, cereals, candies, and crackers. Snacks in their original packaging often pass as they are sealed and properly labeled. |
| Special considerations | Baby formula, breast milk, and food for babies and young children have special guidelines and may require additional screening. |
| Prohibited items | Full-sized containers of creamy dips, spreads, peanut butter, salad dressings, oils, and salsas are generally prohibited in carry-ons. |
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What You'll Learn

Liquids and gels
Liquids, gels, and aerosols (LGAs) are subject to strict restrictions at airport security. The Transportation Security Administration (TSA) at Sea-Tac Airport enforces a limit on the quantity of LGAs that passengers can carry in their luggage. Each traveller is allowed to bring a quart-sized bag of LGAs through the security checkpoint for screening.
The restriction limits the volume of LGAs in carry-ons to containers of 3.4 ounces (100 ml) or less. This includes commonly carried items such as beverages, jams, sauces, shampoo, conditioner, sunscreen, shaving cream, toothpaste, and more. If you are travelling with larger quantities of LGAs, they must be placed in checked luggage.
It is important to note that certain items, such as peanut butter, olive oil, and salsa, are considered liquid or creamy foods and must comply with the 3-1-1 rule or be placed in checked luggage. However, some liquid or semi-liquid foods are exempt from this rule, including fresh eggs, which are classified as solid food by TSA standards, and breast milk, which is considered a medically necessary liquid.
Additionally, dry goods such as coffee beans, loose tea leaves, and dry tea sachets are not subject to the same restrictions as LGAs. These items are generally permitted in carry-on or checked luggage, provided they are properly packaged and labelled.
To facilitate the screening process and enhance your travel experience, it is recommended to plan ahead and pack accordingly. Even if an item is generally permitted, it may be subject to additional screening or prohibited if it triggers an alarm, appears tampered with, or raises security concerns. Ultimately, the final decision rests with the TSA officer at the checkpoint.
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Fresh foods
When it comes to fresh foods, raw meat and seafood are allowed in carry-on luggage, as long as they are sealed to prevent any smells or juices from leaking out. Fresh fruits and vegetables are also permitted, but they must be in their whole form—a whole melon, for example, may not be allowed. Processed fruits like raisins or dates are typically fine if they are in a sealed bag. For international flights, regulations are usually stricter, and fresh fruits and vegetables may not be allowed to prevent the introduction of invasive species.
Cooked foods without liquids are generally safe to fly in both carry-on and checked bags. However, if the food is wrapped in aluminium foil, it may require additional screening. Fresh foods that are frozen, such as frozen seafood, are also allowed.
Some foods that are considered solid foods, like hard cheese, are permitted. However, creamy or spreadable cheeses must comply with the 3-1-1 rule for carry-on luggage. This rule applies to other creamy or spreadable items like dips, peanut butter, jams, and preserves. These items can be placed in checked luggage without restriction.
It is important to note that bringing your own food may add time to the security screening process, as most security personnel will ask to place food items in a separate bin for inspection. Additionally, avoid strongly scented foods to prevent inconveniencing other passengers.
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Sealed packaging
When it comes to sealed packaging, snacks in their original packaging are generally allowed as they are sealed, labelled, and easily identifiable. This includes items like packs of peanuts, protein bars, cookies, bread, and other baked goods. Even a whole cake is permitted as long as it's properly sealed, with no liquid components like jelly or soft cheese.
For homemade or self-packaged snacks, ensure they are in airtight, leak-proof, and resealable containers. This is especially important for items with liquid or creamy components, such as peanut butter, dips, or sauces, to prevent leakage and comply with the liquid restrictions. Vacuum-sealed packaging is also recommended for added security.
It's worth noting that while fresh fruits and vegetables are allowed on domestic flights, international flights may have stricter regulations to prevent the introduction of invasive species. Processed fruits like raisins or dates are typically fine in a sealed bag, but always check with immigration and customs when bringing fresh produce.
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Carry-on vs checked luggage
When it comes to air travel, there are two main types of luggage you can bring: carry-on luggage and checked luggage. Each has its own advantages and disadvantages, and the best option for you will depend on your specific needs and preferences.
Carry-on luggage is the type of baggage that you bring with you on the plane. It is typically smaller in size and must comply with the size and weight restrictions specified by the airline. Carry-on luggage is convenient because it allows you to keep your belongings with you at all times, providing easy access to essential items during the flight. It also eliminates the need to wait at baggage claim upon arrival at your destination. However, carry-on luggage can be more restrictive in terms of what you can pack, with limitations on liquids and certain prohibited items such as firearms and large scissors.
Checked luggage, on the other hand, is larger baggage that you hand over to the airline at check-in, and it is stored in the airplane's cargo hold. Checked luggage is typically used for bulkier items or when you need to pack more than what is allowed in carry-on luggage. It is ideal for those who want to bring back souvenirs or shop during their trip. Checked luggage also allows you to pack certain items that are prohibited in carry-on luggage, such as full-size liquid containers or sharp objects. However, checked luggage usually incurs additional fees, and there is a risk of delayed or lost baggage.
In terms of food items, the Transportation Security Administration (TSA) has stringent rules for liquids, but solid foods are generally allowed in both carry-on and checked luggage. Unopened snacks such as granola bars, nuts, chips, crackers, cookies, chocolate, and hardened candy are permitted. Fresh eggs are also allowed, despite technically containing liquid. Dried fruits and vegetables, coffee beans, tea leaves, dry pasta, beans, and grains are all permitted as long as they are sealed and clearly labelled. Liquids such as water must comply with the TSA's 3-1-1 rule, meaning containers must be 3.4 ounces or less and fit into a quart-size resealable bag.
When deciding between carry-on and checked luggage, consider the length of your trip, the nature of the items you need to pack, your packing tendencies, baggage fees, wait times, and your preference for convenience. For shorter trips, carry-on luggage may be sufficient, while longer trips may require the extra space of checked luggage. If you are bringing valuable items, it is generally recommended to keep them in your carry-on luggage to reduce the risk of loss or theft.
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Special instructions
When bringing food through airport security, it's important to remember that solid, dry foods that are properly sealed in leak-proof containers are generally allowed. However, there are some special instructions to keep in mind for certain items.
Fresh Fruits and Vegetables: While fresh fruits and vegetables are typically allowed on domestic flights, they are prohibited on international flights to prevent the introduction of invasive species or diseases. If you are flying from Hawaii, Puerto Rico, or the U.S. Virgin Islands to the contiguous U.S., you cannot bring most fresh fruits and vegetables. Dried fruits such as raisins or dates are usually permitted if they are sealed.
Baby Formula and Breast Milk: Baby formula, breast milk, and juices for babies are allowed in checked luggage. If you want to bring them in your carry-on, they will need to undergo a special screening. Breast milk is considered a medically necessary liquid, so it is exempt from the 3-1-1 rule.
Meat and Seafood: Fresh meat and seafood are allowed on domestic flights but are subject to special instructions for international travel. Frozen seafood is allowed as long as it is properly sealed.
Liquid and Creamy Foods: Items such as peanut butter, olive oil, salad dressings, and salsas are considered liquid or creamy and must comply with the 3-1-1 rule for carry-ons. These items can also be placed in checked bags without size restrictions, although overweight bags may incur additional fees.
Canned Goods: Canned goods, such as a tin of tuna or a can of beans, are not allowed in carry-on luggage. If you need to bring them, pack them in your checked luggage.
It's important to note that even if an item is generally permitted, it may be subject to additional screening or may not be allowed through the checkpoint if it triggers security concerns. The final decision rests with the TSA officer.
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Frequently asked questions
Yes, you can bring packaged snacks through airport security. However, there are some restrictions on the type of snacks and packaging.
Solid, dry foods with no liquid content are generally allowed. This includes items such as granola bars, nuts, chips, crackers, cookies, bread, dry beans, grains, and other similar snacks. Hardened chocolate and candy are also allowed.
Snacks should be in their original packaging or properly sealed in leak-proof containers to prevent any spillage. Vacuum-sealed packaging is ideal for avoiding tampering concerns.











































