Originally Posted by
js1993
I often travel with a max-size rollaboard and nothing else. Does Frontier also use a sizer for carry-on bags or do they just make sure you paid for a carry-on? Thanks.
They do have a sizer, but I rarely see it used. Given that carry-ons now have a higher price tag than checked bags, I doubt they'll try to get you to change from one to the other. Your experience could be different, though, and it's hard to predict when they will have an enforcement effort or some random GA will be having a bad day.