You are allowed to bring a quart-sized bag of liquids, aerosols, gels, creams and pastes in your carry-on bag and through the checkpoint. These are limited to travel-sized containers that are 3.4 ounces (100 milliliters) or less per item.
For example, many stick deodorants and antiperspirants come in sizes under 3.4 ounces, so it's fine to bring in your carry-on bag. However, roll-ons tend to be larger, meaning they must be packed in checked luggage.
You can take all plug-in phone chargers with you in your carry-on or checked bags with ease as they do not contain any form of battery and, therefore, do not present any danger.
You now know more about what you can and can't pack in a carry-on, but what about items you definitely should pack in your carry-on? First, we'd recommend packing a change of clothes, any medication you need to take with you, and any valuable items, just in case your checked luggage is lost by the airline.
The FAA limits the total amount of restricted medicinal and toiletry articles, including aerosols, in checked baggage. The total aggregate quantity per person cannot exceed 2 kg (70 ounces) or 2 L (68 fluid ounces). The capacity of each container must not exceed 0.5 kg (18 ounces) or 500 ml (17 fluid ounces).
If containers are larger than 3.4 ounces (100 ml), they won't be allowed through security, and the security officer will discard them. However, you can bring an empty reusable water bottle of any size through security and fill it up after you've gone through the checkpoint.
If you are packing your makeup in your carry-on, just make sure that any liquids are in a container that is 3.4 ounces or less. You can also take as many 3.4 ounce containers as you want, as long as they all fit into one quart-sized, clear bag. Additionally, solid deodorant is allowed in carry-on bags.
TSA recommends packing medications, vitamins and any other pills you may need in your hand luggage for easy access. Pack your pills in your daily pill box; keep them in their original containers; or put them in baggies or any other convenient container.
Toothpaste is considered a liquid by the TSA (Transport Security Agency), even though it's technically a paste. In fact, all pastes, gels, waxes, and lotions are also classified as liquids. And even today, these substances are still restricted by the 3-1-1 rule in hand luggage due to safety threats.
Place the wrapped bottle or container in the middle of your largest suitcase, surrounded by clothing and other soft items. A variation on this method involves using a hard-sided plastic or cardboard container to protect your liquid item. Use a small cardboard box or a sealed plastic container.
As a guide, anything larger than A5 size or an iPad mini needs to be placed in a tray with nothing covering it up. If you can spray, spread or pour something at room temperature, it counts as a liquid in aviation security terms. This includes aerosols such as asthma inhalers and foodstuffs, like butter or jam.
Remove personal electronic devices larger than a cell phone from your carry-on bag and place them into a bin with nothing placed on or under them for X-ray screening. (E.g. laptops, tablets, e-readers and handheld game consoles.) Remember to check the bins and collect all belongings after going through screening.
Portable chargers or power banks containing a lithium ion battery must be packed in carry-on bags. For more information, see the FAA guidance on portable rechargers. For more prohibited items, please go to the 'What Can I Bring?'