Originally Posted by
brocklee9000
And there are plenty of airports regionals operate in where a mainline plane would never be able to go. It’s not always a matter of consolidating 5 daily flight to 1 weekly flight, or maintaining slot/gate space, or whatever frequency is required at small airports for EAS agreements. Sometimes it comes down to size and performance. You’ll never see mainline at State College, Flagstaff, Aspen, Ithaca, or any number of small airports.
Nothing is stopping mainline from operating their own 175's.