The JetBlue Airways Miami Office can help travelers understand the basic carry-on baggage requirements before they begin their journey. Passengers are generally permitted to bring one carry-on bag along with one personal item, provided both meet the airline’s size requirements.For example, a carry-on baggage must be able to fit securely in the overhead bin, and a personal item must be stored under the seat in front of you. It's a good idea to measure baggage before packing to ensure that it fits, since wheels, handles, and outside compartments can add to the dimensions of a bag. Valuable items, documents, and essentials such as medication and electronic devices can also be stored in cabin baggage to make your trip easier. Remember, the available space in the overhead compartments can vary from aircraft to aircraft and during the course of a flight. Checking the baggage allowance for your fare type may save you hassle at the airport.