Guide

Yes, but it depends on the type. Solid sticks have no size limit. Gels, sprays, and aerosols must be 3.4 oz (100 ml) or less per container.

Yes, a duffel bag can be used as a carry-on if it fits your airline’s size limits—typically 22 x 14 x 9 inches for most US carriers.

Yes, solid food is allowed in carry-on luggage, but liquid or gel items must follow the 3-1-1 rule (3.4 ounces or less per container.

Yes, Delta permits one carry-on bag plus one personal item like a small backpack at no charge on all Delta-operated flights.

Yes, you can bring food in your carry-on bag. Solid foods like snacks and sandwiches are fine, but liquid and gel foods must follow the 3-1-1 rule.

Yes, most major airlines allow one carry-on bag for the overhead bin and one personal item to stow underneath the seat in front of you.

Yes, American Airlines allows one carry-on bag and one personal item like a backpack, as long as each stays within the airline’s specific size limits.

Yes, aerosol dry shampoo is allowed in carry-on bags if the container is 3.4 ounces (100 ml) or smaller and fits in a quart-sized clear bag.

Yes, but only on specific airlines like Frontier and Southwest, which allow bags up to 24 inches tall.

Yes, you can pack deodorant in your checked luggage on British Airways, though aerosol containers must follow size and quantity limits set.