I always carry on my tripod, probably 30 trips or so. Never had a problem, even with one of the tall Altas that is probably 24” or more broken down. I flew last week with an outdoorsman, no problem and tons of room in overhead bins with the lower seat capacity. My bigger concern is always the big pack that I carry on, but haven’t had an issue with that either. I load it with all my optics to keep them with me.