My route is less than two hours round trip, and I like that very much; but if you want hours, we have that option. I think BUF-IND is available and it will get you 4+ hours/day. I haven't done the Miami route but I've been told it will get you close to 30 hours a week. IND has a 5.5+ hr/day run; MEM-CHS will get you over 6hr/day. I could go on. Yes, you are correct that lot of routes are short, but if what you want is hours, you can make that happen.
Also, the Part Time position they posted few months are no longer available.