That Wings Air is flying Navajos from ATL-Athens and ATL-Macon. I think they fly 10 times a day and the FO's pay $20/hr to be there. I'd go to confirm but I don't care about that owner.

As to the planes, according to my trusty book here, on a 400sm trip like ATL-MCO or ATL-RDU, or sort of JFK-RDU and JFK-CLE. The Q400 is 12 minutes slower but burns over 1,000 lbs less fuel. Over a 14 hour day you can do 9 trips on the CRJ and 8 on the 400. That is based on both airplanes using an ideal climb, cruise and descent profile. I'm sure it changes tremendously if one can take off VFR out of LGA/JFK and one waits in line and is held down from its optimum.

Q400: 1:26, 2800lbs burned
CRJ700: 1:15 and 3200lbs
ATR72-500: 1:38 and 1800lbs
...
50 Seaters (i.e. 20 less seats) on the same route:
CRJ-200 2,400lbs and ERJ145 2,600 lbs