AA used to do LGA
in the MD80 ... i think it was just Fri and Sun service and I think it was just for one season a couple of years back.
Northeast flew DC9 10 and 30s into ACK
(as well as MVY and HYA
!) back in their day from LGA
Continental mainline even did EWR
in 733 (I believe from LGA
at one point as well) just on Friday nights in and Monday mornings back ... to accomodate Frank Lorenzo, rumor had it. This was in addition to CO
Express service on the route as well.