The JetBlue plane is shown. Reuters

JetBlue Airways will offer a three-month unlimited travel ticket for passengers beginning Aug. 22, the carrier announced Thursday.

The new "BluePass," targeted to business travelers, will allow an unlimited number of flights to select cities, as long as customers fly out of or to Boston's Logan International or Long Beach Airport in California.

The two-airport rule seems to be a minor detail, as the "BluePass" will offer more perks than the popular All-You-Can-Jet pass, which JetBlue offered in 2009 and 2010.

Unlike the month-long version, which sold for $599, the "BluePass" will have no blackout dates, and customers will have the luxury of booking as late as 90 minutes before a scheduled flight. In addition, customers will not be penalized for any changes or cancellations.

"JetBlue is pleased to offer this valuable, flexible and convenient unlimited pass to meet the high-frequency travel needs of a variety of customers, no matter what their business plans entail," said Dennis Corrigan, vice president of sales and revenue management at JetBlue, in a statement.

The three tiers of the "BluePass" include the Boston All, which covers 32 cities in the country and retails for $1,999. The Boston Select, at $1,499, covers flights between Boston and more than a dozen cities, including Chicago, New York and Baltimore. The Long Beach Select includes flights to Austin, Sacramento and Seattle, for $1,299 per pass.

The "BluePass" is now available for booking until Aug. 31.