Can some folks shed some light as to how commutable are the following destinations from KJFK or KLGA? Insights to parking fees, hassles, space availability at the NY airports would also be helpful.

KBOS, KPHL, KDCA, KDFW, KDTW

The other side to this thread is, how commutable are the following airlines:

Air Wisconsin
American Eagle
Pinnacle
ASA

Thanks!