Just released.   When you click on this and get to the Crystal site you will get a pop-up showing how it can be used for cruise air booked through Crystal or if you book your own air you can get a cruise credit on the cruise fare. Keith   https://crystalcruises.com/offer/us-air-credit-2023-07-31?fbclid=IwAR2hrz6w3ffi7fSk_ou5X6wwpwlsxDAVX93snMkrNZUFTCkr46GXUV_tXCg