3.4-ounce (100-milliliter) bottle or less (by volume) — one (1) quart-sized, clear, plastic, zip-top bag — one (1) bag per passenger placed in screening bin; one (1) quart-sized bag per person limits the total liquid volume each traveler can bring. The 3.4-ounce (100-milliliter) container size is a security measure.
Place bottles in one bag and X-ray separately to speed screening. Be prepared. Each time TSA searches a carry-on it slows down the line. Practicing 3-1-1 will ensure a faster and easier checkpoint experience. If in doubt, put your liquids in checked luggage.
Medications, baby formula and food, breast milk, and juice are allowed in reasonable quantities exceeding three ounces and are not required to be in the zip-top bag. Declare these items for inspection at the checkpoint.
TSA needs to get a clear image of your carry on when it passes through the X-ray machine, which they can't do if it is overpacked. Please keep it to the necessities.
You will probably have to take your shoes off to get through the TSA security checkpoint, so wear slip-on shoes if you can to make it easy to remove and put them back on. This will help keep the line moving for you and others.
For less stressful travel, allow yourself plenty of time to get through TSA. Most flights begin the boarding process 30 minutes before departure, so make sure you arrive at the security check significantly before that time.