Spirit Airlines is offering a new, members-only program for FREE SPIRIT members. The $9 Fare Club will provide members with exclusive access to low fares, as low as the single digits. Spirit guarantees a sale at least once every six weeks with exclusive member-only fare offers e-mailed directly to $9 Fare Club members. Membership in the program will cost $9 for the first three months and will automatically continue for an annual $29.95 fee. FREE SPIRIT MasterCard cardholders who make at least one credit card purchase each month will receive complimentary month-to-month membership in the club.