Denver+Boulder+Colorado Springs area is growing by quite a bit, however. Since 2010 (to 2017) Colorado's population increased by more than 500K people. And, s

Denver+Boulder+Colorado Springs area is growing by quite a bit, however. Since 2010 (to 2017) Colorado's population increased by more than 500K people. And, since they all come from "somewhere else" that means that likelihood of them needing flights is possibly higher also.