Carry-on allowance You're allowed 1 carry-on bag and 1 personal item. Your carry-on bag can be up to 45 inches (22 x 14 x 9 in) or 115 centimeters (23 x 36 x 56 cm) including handles and wheels. Your personal item needs to be smaller than your carry-on item and must fit under the seat in front of you. Instead of a carry-on bag, you can bring on a soft-sided garment bag up to 51 inches. I have smal suitcase that is 113 cm. It is 55x38x20. Will this be ok? or is the 2 extra cm a problem? on one of the flight home we will be travelling with AA..