Attention would-be jetsetters, adventurers, vagabonds, and nomads: It’s time to call in that month-long sabbatical you've been due at work!

JetBlue has just announced an unprecedented deal aimed at people with a serious case of wanderlust. Through August 21, the airline is selling a month-long “All-You-Can-Jet” pass for $599 that offers travelers unlimited flights between September 8 and October 8, 2009 to any of the airline’s 56 destinations.

Fancy a long weekend in San Francisco? No problem. Maybe a mid-week jaunt down to New Orleans for some dixieland? Sure. Or perhaps you’re craving a month-long tour of the islands—Jamaica, Aruba, St. Maarten, Puerto Rico, St. Lucia, Dominican Republic, Barbados, and even Martha’s Vineyard. Whether you use the pass to head up to Rochester, New York City or down to Bogotá, Colombia, it’s all the same price. And the fine print only sweetens the deal: taxes and fees are included for all domestic flights, there are absolutely no blackout dates, and every flight and seat is available for booking.

So what are you waiting for? Book it already!

Amy Farley is a senior editor at Travel + Leisure.