So I’m flying on Frontier direct Orlando MCO to San Juan, PR and decided to risk it with my Aeronaut 30 as a personal item, fully-packed to the brim - with my CPAP in one of the side compartments. It was about 2” too tall/long but I wore it as a backpack and had no problems. We’ll see how this goes on my return flight but I will say the Aeronaut 30 has saved me $40-$60 so far.![]()