I've got my 20% coupon I want to use for a flight this winter. I don't have status on AC and my flight dates are set in stone so I'm perfectly happy with Tango. Problem? Tango flights aren't an option on one of my days. Does anyone who watches flights more closely than I do have an idea of how often they add new Tango availability to flights? I know from price watching that Tango has been disappearing and reappearing on different flights.