Before you go all-in and clear your schedule, there's some fine print to keep in mind. The bulk of these deals are available between May 8 and June 20, and many of the cheapest available flights fly exclusively between Mondays and Thursday. Also, there are blackout dates from May 23-28 (Memorial Day).
On the upside, these are all "Blue" fares, which means they come with standard JetBlue perks like free WiFi and unlimited snacks. However, you'll probably want to pack light, since there are additional fees for checked baggage ($30 for the first, $40 for the second).
So go ahead and take some well-deserved time off. Frankly, you have no excuse not to.