How Strict is Delta Carry-On Size?Beware when purchasing a good carry-on. When it comes to Delta carry-on size, they are pretty strict in their policy. If it looks too big, they will put it in the sizer to make sure it fits.
Delta Personal Item Policy:You can add one personal item to your trip with your carry-on. The personal item can consist of a laptop bag, book bag, or purse. The item must be small enough to fit under your seat.