The biggest stipulation with American Airlines’ personal item policy is that the bag must fit underneath the seat directly in front of you to count as a personal item.
The biggest difference between a carry-on bag and a personal item is one of these is free and one might not be. It all depends on which airline you re flying.
Allegiant is considered a no-frills airline that people tend to think charges for everything, but passengers are allowed to bring a personal item free of charge