The Hawaiian Airline Carry On Liquid rules follow the security standards at the airport where you board. In the United States, the Transportation Security Administration (TSA) sets the main rule, and it applies to every airline, including Hawaiian Airlines. Knowing the rule before you pack saves time at the checkpoint and prevents your favorite products from being thrown away. This guide explains the 3-1-1 rule, which items count as liquids, the exceptions for medication and baby supplies, and the packing habits that make screening easier.
The 3-1-1 rule is the foundation of every carry-on liquid policy in the United States:
3: each container must hold 3.4 ounces (100 ml) or less.
1: all containers must fit together in one clear, quart-size resealable bag.
1: each passenger may carry only one such bag.
The limit is based on the labeled capacity of the container, not on how much is inside. A six-ounce bottle that holds only two ounces of shampoo is still considered a large bottle and will not pass through the checkpoint in your cabin bag.
As of late 2026, the rule remains in force at US airports. Some airports with newer CT scanners may apply it more flexibly, and the TSA has discussed possible changes, but travelers should follow 3-1-1 unless the agency announces otherwise.
A simple test helps: if you can pour, spray, spread, pump, or squeeze it, the TSA treats it as a liquid. Common examples include:
Shampoo, conditioner, body wash, and shaving cream
Lotion, moisturizer, and sunscreen
Toothpaste, mouthwash, and contact lens solution
Perfume, cologne, hair spray, and gel deodorant
Liquid or cream makeup, such as foundation, mascara, and lip gloss
Drinks, soups, and syrups
Spreadable foods, such as peanut butter, jam, honey, and hummus
Many travelers are surprised by makeup and food. Cream blush and liquid concealer count, and so do dips and spreads packed in your snack bag.
Solid versions are not restricted in the same way. Bar soap, solid shampoo, stick deodorant, and powder makeup are easy alternatives that save space in your clear bag and reduce the risk of leaks.
Items Allowed in Larger Quantities
Some items are exempt from the 3.4-ounce limit. You must keep them separate from your other liquids and tell the security officer at the start of screening:
Medication: prescription and over-the-counter liquid medicines in reasonable quantities.
Baby supplies: formula, breast milk, and juice for infants and toddlers.
Medically necessary liquids: items you need for a health condition.
Duty-free purchases: liquids bought at the airport or on board an international flight, sealed in a tamper-evident bag with the receipt visible.
These items may receive extra screening, so allow additional time. Carry only the amount you need for your journey, and keep medication in its original labeled container where possible. For duty-free liquids, do not open the sealed bag until you reach your final destination, because you may face another security check on a connecting flight.
Sunscreen and Souvenirs for Hawaii Travelers
Flights to and from Hawaii bring a few extra packing situations.
Sunscreen. Lotion, spray, and gel sunscreen all count as liquids. A full-size bottle belongs in checked baggage. For your cabin bag, choose a travel-size bottle, or buy sunscreen at your destination.
Local foods and gifts. Bottled sauces, honey, jams, and similar souvenirs can count as liquids or gels. If they exceed 3.4 ounces, pack them in checked baggage. Wrap each bottle in clothing and seal it in a plastic bag in case of leaks.
Inter-island flights. Screening standards remain the same on short flights, so do not assume looser rules for a quick hop between islands. Oversized bottles will still be removed at the checkpoint.
What Happens If a Container Is Too Large
If a container exceeds the limit, security officers will usually ask you to discard it. Depending on timing and the airline's policy, you may be able to return to the check-in area and place it in a checked bag. This costs time and may bring extra baggage charges, so it is far easier to remove oversized containers before you leave home.
Hawaiian Airline Carry On Liquid planning comes down to a few clear checks: containers of 3.4 ounces or less, all inside one clear quart-size bag, with medication and baby supplies declared separately. Pack larger bottles in checked baggage, choose solid alternatives where possible, and keep your clear bag easy to reach. Because security rules and airline policies can change, always confirm the latest requirements on the official TSA website or Hawaiian Airlines website before you fly.