As you'd expect, JetBlue's latest sale comes with some standard fine print you should keep in mind before you start burning your remaining PTO days. Specifically, you'll have to travel between October 17 and December 14, although there are a bunch of blackout dates throughout November, according to the sale site. Oh, and the sale only applies to the airline's "Blue" fares, so if you want to check a bag it's going to cost an extra $25, and $35 for a second bag.
All said, if you needed an excuse to disappear on a weekend jaunt, this could very well be your best shot right now. But, then again, there are probably many more cheap flight deals on the way.