Understanding personal bag dimensions Delta is important when preparing for your next flight. Delta Air Lines generally allows passengers to bring one personal item alongside a standard carry-on bag without an additional fee on eligible flights. Suitable options include a purse, laptop case, briefcase, or compact backpack that fits beneath the seat in front of you. Although the airline does not specify exact numerical dimensions for personal items, choosing a smaller bag helps ensure convenient storage. Reviewing current baggage guidelines before departure can help prevent unnecessary complications and make your journey more comfortable.