You can bring one carry-on bag and one personal item for free on most domestic and international flights. But there are a few rules you’ll need to follow.
If you have a smart bag that uses lithium batteries, the batteries must be removed before they’re brought on board.
The TSA allows you to bring liquids, gels and sprays in your carry-on bag. However, the container can be no larger than 3.4 ounces (100 mL) and must be placed inside a quart-size clear, sealable bag.
The TSA recommends you place powders in your checked bags. But you can bring up to 12 ounces (350 mL) in your carry-on bag when you fly domestically in the U.S.
You can bring a small instrument on your flight in a hard case. It’ll be considered your carry-on if you place it in the overhead bin, or your personal item if you place it under the seat in front of you. Learn more about musical instruments.
Always make sure you place any medication, vapes, e-cigarettes, keys and other essentials in your personal item in case your bag is gate-checked.
You can bring medical syringes on your flight as well. If you need to use your syringes during the flight, ask a flight attendant to help you dispose of them safely.
If an item is too fragile or bulky to check, or you feel it needs to be handled with special care, you can buy a ticket for it.