Definitely keep checking. My November flight on Song from Hartford has ranged from at least $250, down to $171, and it's often been $191-$220. This is all in the past month. It seems to change every few days.
Overall, Delta lowered their prices to match SWA's fall rates. I'm not sure if ALL the Delta rates are fluctuating so frequently, or if my flight keeps changing, as people book and cancel. Good luck!