The Spirit Airlines $9 Fare Club is the airline's membership program, which gives members discounts on items such as fares and luggage fees. As of 2015, the program requires a yearly fee to join and remain an active member.
Customers who join the Spirit Airlines $9 Fare Club receive access to discounts on fares and vacations. They also receive up to 50 percent off checked bags if they purchase the option online instead of at the airport. Discounts through the Spirit Airlines $9 Fare Club apply to up to eight guests when the tickets are booked on the same reservation as the program member.