Southwest Rapid Rewards members can earn up to 10 Rapid Rewards Credits for Hyatt stays completed by Sept. 30, 2009. After registering, members can earn:one night — one bonus credit; two nights — two bonus credits (three total); three nights — three bonus credits (six total); four nights — four bonus credits (10 total and maximum). The bonus is in addition to the 0.5 credits earned per stay.To qualify, members must participate in Hyatt Gold Passport and Southwest Rapid Rewards and register at the link below by Sept. 30, 2009. Qualifying stays include stays at any Hyatt Hotel & Resort, Hyatt Place, Hyatt Summerfield Suites, Andaz or Hyatt Vacation Club Resort worldwide booked at an eligible rate. You must choose Rapid Rewards credits as your earning preference.Visit http://insideflyerus.wpengine.com/link/?1729

Bottom line: A roundtrip award ticket on Southwest is 16 credits so you will be more than halfway there after staying four nights at Hyatt hotels during the promotion.