what is carry on size

Carry-on size refers to the dimensions of a bag that can be brought onto a plane and stored in the overhead bin or under the seat in front of you. The size restrictions for carry-on bags vary by airline, but the standard domestic carry-on luggage size is 22" x 14" x 9". However, you should always check with your airline before traveling to ensure that your bag meets their specific size requirements. Most airlines also allow passengers to bring one personal item, such as a purse or small handbag, which must fit under the seat in front of you and should not exceed 18 x 14 x 8 inches. Its important to note that some airlines may have additional restrictions or fees for carry-on bags, so its always a good idea to check with your airline before you travel.