Frontier Airlines Official Site recently updated our old policies. They have announced new regarding Carry-on Bag Policy in September month of the year 2019. As we have mentioned below.

Carry-on Bag :  

Now Carry-on Bag is no longer than 24"H, 16"W, 10" D including handles and wheel also. And its total weight is not heavier than 35 pounds. If you take a bag that exceeds the allowable dimensions you will have to pay additional charges.