Since the terrorist incidents that changed the face of air travel, passengers have had to comply with a range of different restrictions. But these restrictions have not remained the same over time, although many people are unclear exactly how they are affected. For example, you can now bring liquids, aerosols and gels onboard an aircraft – these items are not banned completely. But your cosmetics, toiletries, medications and foods are subject to certain rules. How much liquid can you take on a flight? What restrictions are there on carrying gels and liquids onboard?

Bag packing

The regulations on liquids according to the Transportation Security Administration state that each traveler can carry one bag that contains gels, liquids or aerosols in order to limit the amount of these substances on the plane. The bag should be separate from the rest of your hand luggage so it can be more easily inspected by officials.

Other regulations state that liquids must be in 100ml or smaller containers, and all your liquid items must fit into one quart-sized, clear plastic bag. This is for security reasons. You should place your bag separately in the bin as you pass through the scanners. Be prepared for this because if your liquids don’t meet these requirements it can slow you, and the rest of the line, down considerably. If in doubt, pack liquids in your hold luggage to ensure they get through security.

You can take on larger quantities of prescription medications, baby food and formula, and breast milk but you need to declare these items when you go through scanning. You may need to open the containers for officials to check. If you are concerned about what you can take onboard, consult the Transportation Security Administration website before you fly.

Get more information and tips for international travel. It is adviced to visit the US Department of State website for latest travel information.